file
stringlengths 18
26
| data
stringlengths 3
1.04M
|
|---|---|
the_stack_data/62638591.c | #include <string.h>
void setZeroes(int **matrix, int matrixRowSize, int matrixColSize)
{
if (!matrixRowSize || !matrixColSize)
return;
int i, j, rowflag, colflag;
for (rowflag = 1, i = 0; i < matrixColSize; i++)
if (matrix[0][i] == 0) {
rowflag = 0;
break;
}
for (colflag = 1, i = 0; i < matrixRowSize; i++)
if (matrix[i][0] == 0) {
colflag = 0;
break;
}
for (i = 1; i < matrixRowSize; i++) {
for (j = 1; j < matrixColSize; j++) {
if (matrix[i][j] == 0) {
matrix[i][0] = 0;
break;
}
}
}
for (i = 1; i < matrixColSize; i++) {
for (j = 1; j < matrixRowSize; j++) {
if (matrix[j][i] == 0) {
matrix[0][i] = 0;
break;
}
}
}
for (i = 1; i < matrixRowSize; i++) {
if (matrix[i][0] == 0)
memset(matrix[i], 0, matrixColSize * sizeof(int));
}
for (i = 1; i < matrixColSize; i++) {
if (matrix[0][i])
continue;
for (j = 1; j < matrixRowSize; j++)
matrix[j][i] = 0;
}
if (rowflag == 0)
memset(matrix[0], 0, matrixColSize * sizeof(int));
if (colflag == 0)
for (i = 0; i < matrixRowSize; i++)
matrix[i][0] = 0;
}
int main(void)
{
}
|
the_stack_data/99362.c | int add (int a, int b) {
return a+b;
}
int s;
void foo () {
s = add (1,2);
}
|
the_stack_data/140765922.c | /* Generated by CIL v. 1.7.0 */
/* print_CIL_Input is false */
struct _IO_FILE;
struct timeval;
extern void signal(int sig , void *func ) ;
extern float strtof(char const *str , char const *endptr ) ;
typedef struct _IO_FILE FILE;
extern int atoi(char const *s ) ;
extern double strtod(char const *str , char const *endptr ) ;
extern int fclose(void *stream ) ;
extern void *fopen(char const *filename , char const *mode ) ;
extern void abort() ;
extern void exit(int status ) ;
extern int raise(int sig ) ;
extern int fprintf(struct _IO_FILE *stream , char const *format , ...) ;
extern int strcmp(char const *a , char const *b ) ;
extern int rand() ;
extern unsigned long strtoul(char const *str , char const *endptr , int base ) ;
void RandomFunc(unsigned int input[1] , unsigned int output[1] ) ;
extern int strncmp(char const *s1 , char const *s2 , unsigned long maxlen ) ;
extern int gettimeofday(struct timeval *tv , void *tz , ...) ;
extern int printf(char const *format , ...) ;
int main(int argc , char *argv[] ) ;
void megaInit(void) ;
extern unsigned long strlen(char const *s ) ;
extern long strtol(char const *str , char const *endptr , int base ) ;
extern unsigned long strnlen(char const *s , unsigned long maxlen ) ;
extern void *memcpy(void *s1 , void const *s2 , unsigned long size ) ;
struct timeval {
long tv_sec ;
long tv_usec ;
};
extern void *malloc(unsigned long size ) ;
extern int scanf(char const *format , ...) ;
int main(int argc , char *argv[] )
{
unsigned int input[1] ;
unsigned int output[1] ;
int randomFuns_i5 ;
unsigned int randomFuns_value6 ;
int randomFuns_main_i7 ;
{
megaInit();
if (argc != 2) {
printf("Call this program with %i arguments\n", 1);
exit(-1);
} else {
}
randomFuns_i5 = 0;
while (randomFuns_i5 < 1) {
randomFuns_value6 = (unsigned int )strtoul(argv[randomFuns_i5 + 1], 0, 10);
input[randomFuns_i5] = randomFuns_value6;
randomFuns_i5 ++;
}
RandomFunc(input, output);
if (output[0] == 95277814U) {
printf("You win!\n");
} else {
}
randomFuns_main_i7 = 0;
while (randomFuns_main_i7 < 1) {
printf("%u\n", output[randomFuns_main_i7]);
randomFuns_main_i7 ++;
}
}
}
void RandomFunc(unsigned int input[1] , unsigned int output[1] )
{
unsigned int state[1] ;
unsigned int local2 ;
unsigned int local1 ;
unsigned short copy11 ;
unsigned short copy14 ;
{
state[0UL] = input[0UL] + 4284877637U;
local1 = 0UL;
while (local1 < 1UL) {
local2 = 0UL;
while (local2 < 1UL) {
if (state[0UL] > local2 + local1) {
copy11 = *((unsigned short *)(& state[local2]) + 0);
*((unsigned short *)(& state[local2]) + 0) = *((unsigned short *)(& state[local2]) + 1);
*((unsigned short *)(& state[local2]) + 1) = copy11;
copy11 = *((unsigned short *)(& state[local2]) + 1);
*((unsigned short *)(& state[local2]) + 1) = *((unsigned short *)(& state[local2]) + 0);
*((unsigned short *)(& state[local2]) + 0) = copy11;
} else {
copy14 = *((unsigned short *)(& state[local1]) + 1);
*((unsigned short *)(& state[local1]) + 1) = *((unsigned short *)(& state[local1]) + 0);
*((unsigned short *)(& state[local1]) + 0) = copy14;
}
local2 += 2UL;
}
local1 += 2UL;
}
output[0UL] = state[0UL] + 105355128U;
}
}
void megaInit(void)
{
{
}
}
|
the_stack_data/3262575.c | /*
# #### # # #### # ##
# # # # # # # #
# ### # # ### # #
# # #### # # #
# # ## # # # #
#### #### ## #### #### ##
*/
#if defined(_Z8F6403)
rom char levelData[6][15][8] =
#else
const char levelData[6][15][8] =
#endif
{
{ // level 1, no impossible blocks, easygoing Asteroid belt
{0x00, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00},
{0x00, 0xA1, 0xA0, 0x00, 0x00, 0x01, 0x61, 0x00},
{0x0A, 0x11, 0x1A, 0x00, 0x00, 0x16, 0x66, 0x10},
{0x0A, 0x11, 0x1A, 0x00, 0x00, 0x16, 0x66, 0x10},
{0x00, 0xA1, 0xA0, 0x00, 0x06, 0x01, 0x61, 0x00},
{0x00, 0x0A, 0x00, 0x00, 0x63, 0x60, 0x10, 0x00},
{0x00, 0x30, 0x00, 0x06, 0x33, 0x36, 0x00, 0x00},
{0x03, 0xA3, 0x00, 0x06, 0x33, 0x36, 0x00, 0x00},
{0x3A, 0xAA, 0x30, 0x00, 0x63, 0x60, 0x00, 0x00},
{0x3A, 0xAA, 0x30, 0x00, 0x06, 0x00, 0x00, 0x00},
{0x03, 0xA3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
{0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
{0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13},
{0x31, 0x31, 0x31, 0x31, 0x31, 0x31, 0x31, 0x31}
}, { // first 'artpiece', 2nd level. nothing serious A wild alien appears
{0x00, 0x03, 0x30, 0x00, 0x00, 0x00, 0x33, 0x00},
{0x00, 0x03, 0x30, 0x00, 0x00, 0x00, 0x33, 0x00},
{0x00, 0x00, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00},
{0x00, 0x00, 0x01, 0x00, 0x00, 0x01, 0x00, 0x00},
{0x00, 0x00, 0x66, 0x66, 0x66, 0x66, 0x60, 0x00},
{0x00, 0x06, 0x11, 0x11, 0x11, 0x11, 0x16, 0x00},
{0x00, 0x61, 0x16, 0x11, 0x11, 0x16, 0x11, 0x60},
{0x00, 0x61, 0x16, 0x11, 0x11, 0x16, 0x11, 0x60},
{0x03, 0x61, 0x11, 0x11, 0x11, 0x11, 0x11, 0x63},
{0x03, 0x66, 0x11, 0x11, 0x11, 0x11, 0x66, 0x63},
{0x03, 0x00, 0x61, 0x11, 0x11, 0x11, 0x60, 0x03},
{0x03, 0x06, 0x66, 0x66, 0x66, 0x66, 0x66, 0x03},
{0x03, 0x03, 0x30, 0x00, 0x00, 0x00, 0x33, 0x03},
{0x03, 0x00, 0x30, 0x00, 0x00, 0x00, 0x30, 0x03},
{0x00, 0x00, 0x03, 0x33, 0x03, 0x33, 0x00, 0x00}
}, { // needs a bit more precise strikes, 3rd level Oh no it's a monster
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
{0x00, 0x01, 0x10, 0x00, 0x00, 0x01, 0x10, 0x00},
{0x0A, 0x00, 0x11, 0x00, 0x00, 0x11, 0x00, 0xA0},
{0x33, 0x00, 0x01, 0x00, 0x00, 0x10, 0x00, 0x33},
{0x33, 0x0A, 0xA1, 0xAA, 0xAA, 0x1A, 0xA0, 0x33},
{0x33, 0x0A, 0x33, 0x31, 0x13, 0x33, 0xA0, 0x33},
{0x33, 0x11, 0x36, 0x31, 0x13, 0x63, 0x3A, 0x33},
{0x33, 0x33, 0x36, 0x3B, 0xB3, 0x63, 0x33, 0x33},
{0x33, 0x33, 0x11, 0x33, 0x33, 0x11, 0x33, 0x33},
{0x00, 0xA3, 0x31, 0x11, 0x11, 0x13, 0x3A, 0x00},
{0x00, 0xA3, 0x3A, 0xAA, 0xAA, 0xA3, 0x3A, 0x00},
{0x00, 0x03, 0x30, 0x00, 0x00, 0x03, 0x30, 0x00},
{0x00, 0x03, 0x30, 0x00, 0x00, 0x03, 0x30, 0x00},
{0x00, 0x33, 0x00, 0x00, 0x00, 0x00, 0x33, 0x00},
{0x00, 0x33, 0x00, 0x00, 0x00, 0x00, 0x33, 0x00}
}, { //4th level holy hot dicks from hell it's darth vader
{0x00, 0xAA, 0x00, 0x00, 0x00, 0xAA, 0xA0, 0x00},
{0x0A, 0x6A, 0x00, 0x00, 0x00, 0x0A, 0x6A, 0x00},
{0xAA, 0xA0, 0x00, 0x00, 0x00, 0x00, 0xAA, 0xA0},
{0xA6, 0xA0, 0x00, 0x00, 0x00, 0x00, 0x0A, 0x6A},
{0xA6, 0xA0, 0x00, 0xAA, 0x00, 0x00, 0x0A, 0x6A},
{0xA6, 0xA0, 0x0A, 0xAA, 0xAA, 0x00, 0x0A, 0x6A},
{0xA6, 0xAA, 0xAA, 0x66, 0x6A, 0xAA, 0xA1, 0x6A},
{0xA6, 0x11, 0xA6, 0x16, 0x16, 0xAA, 0x11, 0x6A},
{0xA6, 0x1A, 0xA6, 0x16, 0x16, 0x6A, 0xA1, 0x6A},
{0xA6, 0xAA, 0xAA, 0x66, 0x66, 0xAA, 0x0A, 0x6A},
{0xAA, 0x00, 0x0A, 0xAA, 0xAA, 0xA0, 0x00, 0xAA},
{0xAA, 0x00, 0x00, 0x0A, 0xA0, 0x00, 0x00, 0xAA},
{0xAA, 0xA0, 0x00, 0x00, 0x00, 0x00, 0x0A, 0xA0},
{0x0A, 0x6A, 0x00, 0x00, 0x00, 0x00, 0xA6, 0xA0},
{0x00, 0xAA, 0xA0, 0x00, 0x00, 0x0A, 0xAA, 0x00}
}, { //5th level // the destruction of darth vaders ship caused a crash in the time-space continuum! Can you find you way back?
{0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13},
{0x31, 0x31, 0x31, 0x31, 0x31, 0x31, 0x31, 0x31},
{0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11},
{0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11},
{0x66, 0x6B, 0x11, 0x11, 0x11, 0x11, 0xB6, 0x66},
{0x33, 0xB6, 0x36, 0x36, 0x36, 0x36, 0x3B, 0x33},
{0x1B, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0xB1},
{0xB0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0B},
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
{0x00, 0xA0, 0xA0, 0xBB, 0xBB, 0x0A, 0x0A, 0x00},
{0x0A, 0x0A, 0x0A, 0x00, 0x00, 0xA0, 0xA0, 0xA0},
{0x03, 0x03, 0x03, 0x03, 0x30, 0x30, 0x30, 0x30},
{0x10, 0x10, 0x10, 0x10, 0x01, 0x01, 0x01, 0x01},
{0xBA, 0xBA, 0xBA, 0xBA, 0xAB, 0xAB, 0xAB, 0xAB},
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
}, { // 6th level Oh noes! you're stuck at the edge of the universe! oh! What is that!? It's the public house at the edge of the universe.. and it's refusing service! Better destroy it!
{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
{0x00, 0x01, 0x10, 0x01, 0x01, 0x01, 0x10, 0x00},
{0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00},
{0x00, 0x01, 0x16, 0x61, 0x61, 0x61, 0x16, 0x00},
{0x00, 0x61, 0x66, 0x61, 0x61, 0x61, 0x61, 0x60},
{0x06, 0x61, 0x66, 0x66, 0x16, 0x61, 0x16, 0x66},
{0x06, 0x6A, 0x33, 0x33, 0x33, 0x33, 0xA6, 0x60},
{0x00, 0x0A, 0x3A, 0x33, 0x31, 0x13, 0xA0, 0x00},
{0x00, 0x0A, 0x3A, 0x33, 0x31, 0x13, 0xA0, 0x00},
{0x01, 0x0A, 0x3A, 0x33, 0x33, 0x33, 0xA0, 0x00},
{0x0A, 0x3A, 0x3A, 0x33, 0x33, 0x33, 0xA0, 0x00},
{0x03, 0xBB, 0xBB, 0xBB, 0xBB, 0xBB, 0xBA, 0x00},
{0x00, 0x16, 0xBB, 0xBB, 0xBB, 0xBB, 0x63, 0x00},
{0x00, 0x00, 0x1A, 0xBA, 0xBB, 0xBA, 0x60, 0x00},
{0x00, 0x00, 0x03, 0x60, 0x3B, 0xA1, 0x00, 0x00}
}
};
|
the_stack_data/6065.c | /*
LUFA Library
Copyright (C) Dean Camera, 2021.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
/*
Copyright 2021 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
without fee, provided that the above copyright notice appear in
all copies and that both that the copyright notice and this
permission notice and warranty disclaimer appear in supporting
documentation, and that the name of the author not be used in
advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
The author disclaims all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
whatsoever resulting from loss of use, data or profits, whether
in an action of contract, negligence or other tortious action,
arising out of or in connection with the use or performance of
this software.
*/
#if defined(TEMPLATE_FUNC_NAME)
uint8_t TEMPLATE_FUNC_NAME (const void* const Buffer,
uint16_t Length)
{
uint8_t* DataStream = ((uint8_t*)Buffer + TEMPLATE_BUFFER_OFFSET(Length));
bool LastPacketFull = false;
Endpoint_SelectEndpoint(USB_Endpoint_SelectedEndpoint | ENDPOINT_DIR_IN);
if (Length > USB_ControlRequest.wLength)
Length = USB_ControlRequest.wLength;
else if (!(Length))
Endpoint_ClearIN();
while (Length || LastPacketFull)
{
uint8_t USB_DeviceState_LCL = USB_DeviceState;
if (USB_DeviceState_LCL == DEVICE_STATE_Unattached)
return ENDPOINT_RWCSTREAM_DeviceDisconnected;
else if (USB_DeviceState_LCL == DEVICE_STATE_Suspended)
return ENDPOINT_RWCSTREAM_BusSuspended;
else if (Endpoint_IsSETUPReceived())
return ENDPOINT_RWCSTREAM_HostAborted;
else if (Endpoint_IsOUTReceived())
break;
if (Endpoint_IsINReady())
{
uint16_t BytesInEndpoint = Endpoint_BytesInEndpoint();
while (Length && (BytesInEndpoint < USB_Device_ControlEndpointSize))
{
TEMPLATE_TRANSFER_BYTE(DataStream);
TEMPLATE_BUFFER_MOVE(DataStream, 1);
Length--;
BytesInEndpoint++;
}
LastPacketFull = (BytesInEndpoint == USB_Device_ControlEndpointSize);
Endpoint_ClearIN();
}
}
while (!(Endpoint_IsOUTReceived()))
{
uint8_t USB_DeviceState_LCL = USB_DeviceState;
if (USB_DeviceState_LCL == DEVICE_STATE_Unattached)
return ENDPOINT_RWCSTREAM_DeviceDisconnected;
else if (USB_DeviceState_LCL == DEVICE_STATE_Suspended)
return ENDPOINT_RWCSTREAM_BusSuspended;
else if (Endpoint_IsSETUPReceived())
return ENDPOINT_RWCSTREAM_HostAborted;
}
return ENDPOINT_RWCSTREAM_NoError;
}
#undef TEMPLATE_BUFFER_OFFSET
#undef TEMPLATE_BUFFER_MOVE
#undef TEMPLATE_FUNC_NAME
#undef TEMPLATE_TRANSFER_BYTE
#endif
|
the_stack_data/79624.c | #include <stdio.h>
#include <stdbool.h>
bool alphabetic (const char c)
{
if (( c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'))
return true;
else
return false;
}
bool digit (const char c)
{
if (c >= '0' && c <= '9')
return true;
else
return false;
}
void readLine (char buffer[])
{
char character;
int i = 0;
do
{
character = getchar();
buffer[i] = character;
++i;
}
while (character != '\n');
buffer[i - 1] = '\0';
}
int countWords (const char string[])
{
int i, wordCount = 0;
bool lookingForWord = true, alphabetic(const char character), digit(const char c);
for (i = 0; string[i] != '\0'; ++i)
if (alphabetic(string[i])) {
if (lookingForWord) {
++wordCount;
lookingForWord = false;
}
}
else if (digit(string[i]) || (string[i] == '-' && digit(string[i + 1]))) {
if (lookingForWord) {
++wordCount;
lookingForWord = false;
}
}
else if ((string[i] == ',' || string[i] == '.') &&
digit(string[i - 1]) && digit(string[i + 1]))
lookingForWord = false;
else if (string[i] == '\'' && alphabetic(string[i - 1]) && alphabetic(string[i + 1]))
lookingForWord = false;
else
lookingForWord = true;
return wordCount;
}
int main(void)
{
char text[81];
int totalWords = 0;
int countWords (const char string[]);
void readLine(char buffer[]);
bool endOfText = false;
printf("Type in your text.\n");
printf("When your are done, press 'RETURN'. \n\n");
while (! endOfText) {
readLine (text);
if (text[0] == '\0')
endOfText = true;
else
totalWords += countWords(text);
}
printf ("\nThere are %i words in the above text.\n", totalWords);
return 0;
} |
the_stack_data/864349.c | #include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<time.h>
#include<sys/stat.h>
#include<sys/types.h>
#include<fcntl.h>
#include<errno.h>
#include<unistd.h>
#define PIPE_NAME "./myFifo"
struct myStruct{
char* myIdx;
char* myStr;
};
void receive_t_rand_str(struct myStruct** myData, int n, int l, int* start){
// Creating the pipe
umask(0);
if(mknod(PIPE_NAME, S_IFIFO | 0660, 0) == -1){
if(errno != EEXIST){
perror("Cannot create the pipe");
exit(EXIT_FAILURE);
}
// else
// printf("Using existing file\n");
}
else{
printf("FIFO created successfully\n");
}
// Reading
int fd = open(PIPE_NAME, O_RDONLY);
while(read(fd, (*myData)[*start].myIdx, ((*start)<10?2:3))>0){
read(fd, (*myData)[*start].myStr, l);
printf("%s %s\n", (*myData)[*start].myIdx, (*myData)[*start].myStr);
*start=*start+1;
if(*start>=n){
break;
}
}
close(fd);
}
void send_last_rand_str(struct myStruct* myData, int n, int l, int *start){
// Creating FIFO
umask(0);
if(mknod(PIPE_NAME, S_IFIFO | 0660, 0) == -1){
if(errno != EEXIST){
perror("Cannot create FIFO");
exit(EXIT_FAILURE);
}
// else{
// printf("Using existing FIFO\n");
// }
}
else{
printf("FIFO created successfully\n");
}
// printf("%d %d \n", *start, t);
// Writing
int fd = open(PIPE_NAME, O_WRONLY);
write(fd, myData[*start-1].myIdx, ((*start-1)<10?2:3));
write(fd, myData[*start-1].myStr, l);
printf("%s\n", myData[*start-1].myIdx);
// printf("%s %s\n", myData[*start-1].myIdx, myData[*start-1].myStr);
close(fd);
}
int main(int argc, const char* argv[]){
int num_of_rand_str = 50;
int len_of_rand_str = 6;
struct myStruct *myData = (struct myStruct*) malloc(num_of_rand_str*sizeof(struct myStruct));
for (int i = 0; i < num_of_rand_str; i++){
myData[i].myStr = (char*) malloc((len_of_rand_str)*sizeof(char));
myData[i].myIdx = (char*) malloc((i<10?2:3)*sizeof(char));
}
int start=0;
while(start<num_of_rand_str){
printf("Received data:\n");
receive_t_rand_str(&myData, num_of_rand_str, len_of_rand_str, &start);
printf("----------------\n");
sleep(0.5);
printf("Sent data:\n");
send_last_rand_str(myData, num_of_rand_str, len_of_rand_str, &start);
printf("----------------\n");
sleep(1);
}
return 0;
} |
the_stack_data/159516803.c | #include <stdio.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdlib.h>
char buf_in[1024];
int main()
{
int fd;
fd=open("/dev/memchar",O_RDWR|O_CREAT,0666);
if(fd==-1)
{
perror("open file mytest");
exit(1);
}
read(fd,buf_in,1024);
printf("retrieved message is : %s !\n",buf_in);
close(fd);
return 0;
} |
the_stack_data/243892456.c | #include <stdio.h>
int foo(){
return 3;
}
int bar(){
return 4;
}
int main(int argc, char** argv){
(void)argv;
int (*fn)();
if(argc < 2)
fn = foo;
else
fn = bar;
int myval = fn();
printf("%d\n", myval);
}
|
the_stack_data/154829578.c | #include<stdio.h>
#include<string.h> //strlen
#include<sys/socket.h>
#include<arpa/inet.h> //inet_addr
#include<unistd.h> //write
#include<stdlib.h>
#include<pthread.h>
#include<signal.h>
#include<fcntl.h>
#include<sys/stat.h>
#include<time.h>
#include<errno.h>
#include<sys/shm.h>
#include<sys/wait.h>
#include<sys/sendfile.h>
#define SUCCESS 0
#define FAILURE 1
#define FILE_ERROR -1
#define MAX_BUFF 1024
#define MAX_PROCESSES 10
#define RUN_SERVER 1
#define STOP_SERVER 2
#define EXIT_MONITOR 3
#define EXIT_ADMIN 4
#define ERROR -1
#ifndef HTTP_STATUS_CODES
#define HTTP_STATUS_CODES
#define HTTP_OK 200
#define HTTP_NAUTH 203
#define HTTP_NOCONTENT 204
#define HTTP_ACCEPTED 202
#define HTTP_CREATED 201
#define HTTP_RST 205
#define HTTP_PART 206
#define HTTP_MULTISTAUTS 207
#define CONTINUE 100
#define CACHE 1
#define KEEP_ALIVE 1
#define EXPIRES 10
#define MAX_CACHE_AGE "max-age=100"
#endif
#define MAX_METHODS 4
#define MAX_FIELD_LEN 500
#define MAX_FIELDS 100
#define MAX_RCV_MSG_SIZE 8000
#define EOL "\r\n"
#define EOL_SIZE 2
#define ENV_CNT 1000
#define ENV_LEN 100
#define GEN_H_CNT 9
#define ENTITY_H_CNT 10
#define REQ_H_CNT 20
#define RES_H_CNT 10
#define GET 1
#define HEAD 2
#define PUT 3
#define POST 4
#define DOWNLOAD 1
#define DISPLAY 2
#define TIMER 10
#define MAX_ATTEMPTS 5
#define METHOD 0
#define URL 1
#define PROTOCOL 2
#define VERSION 3
#define TRUE 1
#define FALSE 0
#define NOTFOUND "404 NOTFOUND"
#define OK "200 OK"
#define SERVER "Server: RAMESHHTTP/1.1"
#define TIMER_CONNECT 3
int socket_desc = 0;
unsigned int log_count = 0;
int exit_server = 0;
pthread_mutex_t log_mutex = PTHREAD_MUTEX_INITIALIZER;
int thread_count = 0;
/*-------------------------------------------------*/
typedef struct HTTP_RESPONSE_PACKET
{
char *status_line;
char *general_header;
char *response_header;
char *entity_header;
char *msg_body;
char *msg_trailer;
}http_response_packet;
typedef struct HTTP_REQ_PACKET
{
char *request_line;
char *general_header;
char *request_header;
char *entity_header;
char *msg_body;
char *msg_trailer;
}http_req_packet;
struct http_gen_header
{
char cache_control[MAX_FIELD_LEN];
char connection[MAX_FIELD_LEN];
char date[MAX_FIELD_LEN];
char pragma[MAX_FIELD_LEN];
char trailer[MAX_FIELD_LEN];
char transfercoding[MAX_FIELD_LEN];
char upgrade[MAX_FIELD_LEN];
char via[MAX_FIELD_LEN];
char warning[MAX_FIELD_LEN];
};
struct http_client_req
{
char accept[MAX_FIELD_LEN];
char acc_chr_set[MAX_FIELD_LEN];;
char acc_encode[MAX_FIELD_LEN];
char acc_lang[MAX_FIELD_LEN];
char authorize[MAX_FIELD_LEN];
char cookie[MAX_FIELD_LEN];
char expect[MAX_FIELD_LEN];
char from[MAX_FIELD_LEN];
char host[MAX_FIELD_LEN];
char if_match[MAX_FIELD_LEN];
char if_mod_snc[MAX_FIELD_LEN];
char if_none_mtch[MAX_FIELD_LEN];
char if_range[MAX_FIELD_LEN];
char if_unmod_snc[MAX_FIELD_LEN];
char max_fwd[MAX_FIELD_LEN];
char proxy_auth[MAX_FIELD_LEN];
char range[MAX_FIELD_LEN];
char referer[MAX_FIELD_LEN];
char te[MAX_FIELD_LEN];
char uagent[MAX_FIELD_LEN];
};
struct http_srv_res
{
char accept_ranges[MAX_FIELD_LEN];
char age[MAX_FIELD_LEN];
char etag[MAX_FIELD_LEN];
char location[MAX_FIELD_LEN];
char proxy_auth[MAX_FIELD_LEN];
char retry_after[MAX_FIELD_LEN];
char server[MAX_FIELD_LEN];
char set_cookie[MAX_FIELD_LEN];
char vary[MAX_FIELD_LEN];
char www_auth[MAX_FIELD_LEN];
};
struct entity_header
{
char allow[MAX_FIELD_LEN];
char content_encode[MAX_FIELD_LEN];
char content_lang[MAX_FIELD_LEN];
char content_len[MAX_FIELD_LEN];
char content_loc[MAX_FIELD_LEN];
char content_md5[MAX_FIELD_LEN];
char content_range[MAX_FIELD_LEN];
char content_type[MAX_FIELD_LEN];
char expires[MAX_FIELD_LEN];
char last_mod[MAX_FIELD_LEN];
};
struct http_req
{
char method[MAX_FIELD_LEN];
char url[MAX_FIELD_LEN];
char protocol[MAX_FIELD_LEN];
char pversion[MAX_FIELD_LEN];
};
struct msg
{
char msg[MAX_RCV_MSG_SIZE];
};
struct HTTP_REQUEST
{
struct http_req *req_fld;
struct http_gen_header *general_fld;
struct http_client_req *request_fld;
struct entity_header *entity_fld;
struct msg *msg_body;
char *msg_trailer;
};
struct http_status
{
char protocol[MAX_FIELD_LEN];
char version[MAX_FIELD_LEN];
char status[MAX_FIELD_LEN];
};
struct HTTP_RESPONSE
{
struct http_status *status_line;
struct http_gen_header *general_header;
struct http_srv_res *response_line;
struct entity_header *entity_header_fld;
struct msg *msg_body;
char * msg_trailer;
};
typedef struct {
char *ext;
char *mediatype;
} extn;
//Possible media types
extn extensions[] ={
{"gif", "image/gif" },
{"txt", "text/plain" },
{"jpg", "image/jpg" },
{"jpeg","image/jpeg"},
{"png", "image/png" },
{"ico", "image/ico" },
{"zip", "image/zip" },
{"gz", "image/gz" },
{"tar", "image/tar" },
{"htm", "text/html" },
{"html","text/html" },
{"php", "text/html" },
{"pdf","application/pdf"},
{"zip","application/octet-stream"},
{"rar","application/octet-stream"},
{"js","text/javascript"},
{"tiff","image/tif"},
{"c","text/plain"},
{"cpp","text/plain"},
{"java","text/plain"},
{"jsp","text/plain"},
{0,0} };
char *method[MAX_METHODS]={ "GET",
"HEAD",
"PUT",
"POST"};
char *entity[]={"Allow",
"Content-Encoding",
"Content-Language",
"Content-Length",
"Content-Location",
"Content-MD5",
"Content-Range",
"Content-Type",
"Expires",
"Last-Modified"};
char *gen[]= {"Cache-Control",
"Connection",
"Date",
"pragma",
"Trailer",
"Transfer-Encoding",
"Upgrade",
"Via",
"Warning"};
char *req[]= {"Accept",
"Accept-Charset",
"Accept-Encoding",
"Accept-Language",
"Authorization",
"Cookie",
"Expect",
"From",
"Host",
"If-Match",
"If-Modified-Since",
"If-None-Match",
"If-Range",
"If-Unmodified-Since",
"Max-Forwards",
"Proxy-Authorization",
"Range","Referer",
"TE",
"User-Agent"};
char *res[]= {"Accept-Ranges",
"Age",
"ETag",
"Location",
"Proxy-Authenticate",
"Retry-After",
"Server",
"Set-Cookie",
"Vary",
"WWW-Authenticate"};
int get_date(char *file,char *buffer)
{
struct stat buf;
struct tm *mtime;
stat(file,&buf);
mtime = gmtime(&(buf.st_mtime));
sprintf(buffer,"Last modified %u/%u/%u; %u:%u",(mtime->tm_year) + 1900,(mtime->tm_mon) + 1,mtime->tm_mday,mtime->tm_hour,mtime->tm_min);
return 0;
}
void send_new(int fd, char *msg)
{
int len = strlen(msg);
if (send(fd, msg, len - 1, 0) == -1)
{
printf("Error in send\n");
}
}
int find_method(char *request)
{
int meth = -1;
int index = 0;
for(index = 0; index < MAX_METHODS; index++)
{
if(request != NULL && strlen(request) >= strlen(method[index])&&(0 == strcmp(request,method[index])))
{
meth = index + 1;
break;
}
}
return meth;
}
int send_http_response_pack(int new_socket,http_response_packet * http_res,int method)
{
char buffer[MAX_RCV_MSG_SIZE];
memset(buffer,'\0',MAX_RCV_MSG_SIZE);
switch(method)
{
case 1:
sprintf(buffer,"%s%s%s%s\r\n\r\n",http_res->status_line,http_res->general_header,http_res->response_header,http_res->entity_header);
break;
case 2:
sprintf(buffer,"%s%s\r\n",http_res->status_line,http_res->response_header);
break;
default:
return FAILURE;
}
send_new(new_socket,buffer);
return SUCCESS;
}
char* webroot()
{
// open the file "conf" for reading
FILE *in = fopen("conf","r+");
// read the first line from the file
char buff[MAX_BUFF];
fgets(buff,MAX_BUFF , in);
// close the stream
fclose(in);
char* nl_ptr = strrchr(buff, '\n');
if (nl_ptr != NULL)
*nl_ptr = '\0';
return strdup(buff);
}
int parse_line(int socket,int *keep_alive,char line[MAX_FIELD_LEN])
{
int i = 0;
memset(line,'\0',MAX_FIELD_LEN);
printf("\nWaiting for request\n");
void alarm_h()
{
*keep_alive = 0;
pthread_exit(NULL);
pthread_detach(pthread_self());
}
alarm(TIMER_CONNECT);
while (TRUE && i < MAX_FIELD_LEN)
{
if (read(socket,&(line[i]),1) > 0)
{
i++;
}
if (i >= 1)
{
if (strstr(line,"\r\n") != NULL)
{
break;
}
}
}
printf("\nRequest received\n");
return SUCCESS;
}
void unencode(char *src, char *last, char *dest)
{
for(; src != last; src++, dest++)
{
if(*src == '+')
{
*dest = ' ';
}
else if(*src == '%')
{
int code;
if(sscanf(src+1, "%2x", &code) != 1) code = '?';
*dest = code;
src +=2;
}
else
{
*dest = *src;
*dest = '\n';
*++dest = '\0';
}
}
}
void parse_fields(char destination[MAX_FIELDS][MAX_FIELD_LEN],char *start,int *field_count)
{
int count = 0;
char *temp = NULL;
char *tok = NULL;
temp = strdup(start);
//printf("\nfields \n %s\n",temp);
tok = strtok(temp,"\r\n");
while(tok != NULL)
{
//printf("\n%s\n",tok);
strcpy(destination[count] ,tok);
count++;
tok = strtok(NULL,"\r\n");
}
*field_count = count - 1;
free(temp);
}
struct HTTP_RESPONSE * HTTP_response_packet()
{
struct HTTP_RESPONSE *http_response;
struct http_status *status_line = NULL;
struct http_gen_header *gen_header = NULL;
struct http_srv_res *response_header = NULL;
struct entity_header *entity_header_fld = NULL;
struct msg *msg_body = NULL;
http_response = (struct HTTP_RESPONSE*)malloc(sizeof(struct HTTP_RESPONSE));
status_line = (struct http_status*)malloc(sizeof(struct http_status));
gen_header = (struct http_gen_header*)malloc(sizeof(struct http_gen_header));
response_header = (struct http_srv_res*)malloc(sizeof(struct http_srv_res));
entity_header_fld = (struct entity_header*)malloc(sizeof(struct entity_header));
msg_body = (struct msg*)malloc(sizeof(struct msg));
strcpy(status_line -> protocol , "\0");
strcpy(status_line -> version , "\0");
strcpy(status_line -> status , "\0");
strcpy(gen_header -> cache_control , "\0");
strcpy(gen_header -> connection , "\0");
strcpy(gen_header -> date , "\0");
strcpy(gen_header -> pragma , "\0");
strcpy(gen_header -> trailer , "\0");
strcpy(gen_header -> transfercoding , "\0");
strcpy(gen_header -> upgrade ,"\0");
strcpy(gen_header -> via , "\0");
strcpy(gen_header -> warning , "\0");
strcpy(response_header -> accept_ranges , "\0");
strcpy(response_header -> age , "\0");
strcpy(response_header -> etag , "\0");
strcpy(response_header -> location , "\0");
strcpy(response_header -> proxy_auth , "\0");
strcpy(response_header -> retry_after , "\0");
strcpy(response_header -> server , "\0");
strcpy(response_header -> set_cookie , "\0");
strcpy(response_header -> vary , "\0");
strcpy(response_header -> www_auth , "\0");
strcpy(entity_header_fld -> allow , "\0");
strcpy(entity_header_fld -> content_encode , "\0");
strcpy(entity_header_fld -> content_lang , "\0");
strcpy(entity_header_fld -> content_len , "\0");
strcpy(entity_header_fld -> content_loc , "\0");
strcpy(entity_header_fld -> content_md5 , "\0");
strcpy(entity_header_fld -> content_range , "\0");
strcpy(entity_header_fld -> content_type , "\0");
strcpy(entity_header_fld -> expires , "\0");
strcpy(entity_header_fld -> last_mod , "\0");
strcpy(msg_body -> msg ,"\0");
http_response -> status_line = status_line;
http_response -> general_header = gen_header;
http_response -> response_line = response_header;
http_response -> entity_header_fld = entity_header_fld;
http_response -> msg_body = msg_body;
http_response -> msg_trailer = strdup("\0");
return http_response;
}
void strcopy(char *destination,char *source)
{
if (strlen(source) > 0)
{
strcpy(destination,source);
}
else
{
strcpy(destination,"\0");
}
}
struct HTTP_REQUEST * http_request_packet(char req_line[MAX_METHODS][MAX_FIELD_LEN],char gen_h[GEN_H_CNT][MAX_FIELD_LEN],char req_h[REQ_H_CNT][MAX_FIELD_LEN],char entity_h[ENTITY_H_CNT][MAX_FIELD_LEN])
{
struct HTTP_REQUEST *http_request;
struct http_req *request_line;
struct http_gen_header *gen_header;
struct http_client_req *request_header;
struct entity_header *entity_header_fld;
struct msg *msg_body;
http_request = (struct HTTP_REQUEST*)malloc(sizeof(struct HTTP_REQUEST));
request_line = (struct http_req*)malloc(sizeof(struct http_req));
gen_header = (struct http_gen_header*)malloc(sizeof(struct http_gen_header));
request_header = (struct http_client_req*)malloc(sizeof(struct http_client_req));
entity_header_fld = (struct entity_header*)malloc(sizeof(struct entity_header));
msg_body = (struct msg*)malloc(sizeof(struct msg));
strcopy(request_line -> method ,req_line[0]);
strcopy(request_line -> url ,req_line[1]);
strcopy(request_line ->protocol ,req_line[2]);
strcopy(request_line ->pversion , req_line[3]);
strcopy(gen_header -> cache_control , gen_h[0]);
strcopy(gen_header -> connection , gen_h[1]);
strcopy(gen_header -> date ,gen_h[2]);
strcopy(gen_header -> pragma , gen_h[3]);
strcopy(gen_header -> trailer , gen_h[4]);
strcopy(gen_header -> transfercoding , gen_h[5]);
strcopy(gen_header -> upgrade, gen_h[6]);
strcopy(gen_header -> via ,gen_h[7]);
strcopy(gen_header -> warning , gen_h[8]);
strcopy(request_header -> accept , req_h[0]);
strcopy(request_header -> acc_chr_set , req_h[1]);
strcopy(request_header -> acc_encode , req_h[2]);
strcopy(request_header -> acc_lang , req_h[3]);
strcopy(request_header -> authorize , req_h[4]);
strcopy(request_header -> cookie , req_h[5]);
strcopy(request_header -> expect , req_h[6]);
strcopy(request_header -> from , req_h[7]);
strcopy(request_header -> host , req_h[8]);
strcopy(request_header -> if_match , req_h[9]);
strcopy(request_header -> if_mod_snc , req_h[10]);
strcopy(request_header -> if_none_mtch , req_h[11]);
strcopy(request_header -> if_range , req_h[12]);
strcopy(request_header -> if_unmod_snc , req_h[13]);
strcopy(request_header -> max_fwd , req_h[14]);
strcopy(request_header -> proxy_auth , req_h[15]);
strcopy(request_header -> range , req_h[16]);
strcopy(request_header -> referer , req_h[17]);
strcopy(request_header -> te , req_h[18]);
strcopy(request_header -> uagent , req_h[19]);
strcopy(entity_header_fld -> allow , entity_h[0]);
strcopy(entity_header_fld -> content_encode , entity_h[1]);
strcopy(entity_header_fld -> content_lang , entity_h[2]);
strcopy(entity_header_fld -> content_len , entity_h[3]);
strcopy(entity_header_fld -> content_loc , entity_h[4]);
strcopy(entity_header_fld -> content_md5 , entity_h[5]);
strcopy(entity_header_fld -> content_range , entity_h[6]);
strcopy(entity_header_fld -> content_type , entity_h[7]);
strcopy(entity_header_fld -> expires , entity_h[8]);
strcopy(entity_header_fld -> last_mod , entity_h[9]);
strcopy(msg_body -> msg , "");
http_request -> req_fld = request_line;
http_request -> general_fld = gen_header;
http_request -> request_fld = request_header;
http_request -> entity_fld = entity_header_fld;
http_request -> msg_body = msg_body;
http_request -> msg_trailer = strdup("\0");
return http_request;
}
void free_it(void **ptr)
{
if (NULL != *ptr)
{
free(*ptr);
*ptr = NULL;
}
}
void free_http_packets(struct HTTP_REQUEST **http_request,struct HTTP_RESPONSE **http_response)
{
if (http_response != NULL && *http_response != NULL)
{
free_it((void*)&((*http_response) -> status_line));
free_it((void*)&((*http_response) ->general_header));
free_it((void*)&((*http_response) ->response_line));
free_it((void*)&((*http_response) ->entity_header_fld));
free_it((void*)&((*http_response)->msg_body));
free_it((void*)&((*http_response)->msg_trailer));
free_it((void*)(http_response));
}
if(http_request != NULL && *http_request != NULL)
{
free_it((void*)&((*http_request) -> req_fld));
free_it((void*)&((*http_request) -> general_fld));
free_it((void*)&((*http_request) -> request_fld));
free_it((void*)&((*http_request) -> entity_fld));
free_it((void*)&((*http_request) -> msg_body));
free_it((void*)&((*http_request) -> msg_trailer));
free_it((void*)(http_request));
}
}
int read_fields(int socket,char *requested)
{
int i = 0;
while (1)
{
read(socket,&(requested[i]),1);
requested[i + 1] = '\0';
if (i >= 3)
{
if (strstr(requested,"\r\n\r\n") != NULL)
{
break;
}
}
i++;
}
return (i-1);
}
int read_msg_body(int socket,char *requested,int len)
{
memset(requested,'\0',MAX_RCV_MSG_SIZE);
read(socket,requested,len);
return SUCCESS;
}
void print_data(FILE *fp,char *field,char * value)
{
if (value != NULL)
{
fprintf(fp,"\n%s%s\n",field,value);
}
}
void print_http_response(struct HTTP_RESPONSE *http_response,FILE *fp)
{
fprintf(fp,"\nHTTP response packet\n");
fprintf(fp,"\n---------------------------------------------------\n");
print_data(fp,"protocol:",http_response -> status_line -> protocol);
print_data(fp,"version:",http_response -> status_line -> version);
print_data(fp,"status-line:",http_response -> status_line ->status);
print_data(fp,"cache control:",http_response -> general_header -> cache_control );
print_data(fp,"connection:",http_response ->general_header -> connection);
print_data(fp,"date:",http_response ->general_header-> date);
print_data(fp,"pragma:",http_response ->general_header -> pragma);
print_data(fp,"trailer:",http_response ->general_header -> trailer);
print_data(fp,"transfer coding:",http_response ->general_header -> transfercoding);
print_data(fp,"upgrade:",http_response ->general_header -> upgrade);
print_data(fp,"via:",http_response ->general_header -> via);
print_data(fp,"warning:",http_response ->general_header -> warning);
print_data(fp,"accept-ranges:",http_response ->response_line -> accept_ranges);
print_data(fp,"age:",http_response ->response_line -> age);
print_data(fp,"e-tag:",http_response ->response_line -> etag);
print_data(fp,"location",http_response ->response_line -> location);
print_data(fp,"proxy-authentication:",http_response ->response_line -> proxy_auth);
print_data(fp,"retry-after:",http_response ->response_line -> retry_after);
print_data(fp,"server:",http_response ->response_line -> server);
print_data(fp,"set-cookie:",http_response ->response_line -> set_cookie);
print_data(fp,"vary:",http_response ->response_line -> vary);
print_data(fp,"www-auth:",http_response ->response_line -> www_auth);
print_data(fp,"allow:",http_response ->entity_header_fld -> allow);
print_data(fp,"content-encode:",http_response ->entity_header_fld -> content_encode);
print_data(fp,"content-language:",http_response ->entity_header_fld -> content_lang);
print_data(fp,"content-length:",http_response ->entity_header_fld -> content_len);
print_data(fp,"content-location:",http_response ->entity_header_fld -> content_loc);
print_data(fp,"content-MD5:",http_response ->entity_header_fld -> content_md5);
print_data(fp,"content-rage:",http_response ->entity_header_fld -> content_range);
print_data(fp,"content-type:",http_response ->entity_header_fld -> content_type);
print_data(fp,"expires:",http_response ->entity_header_fld -> expires);
print_data(fp,"last-modified:",http_response ->entity_header_fld -> last_mod);
fprintf(fp,"\n---------------------------------------------------\n");
}
void print_http_request(struct HTTP_REQUEST *http_request,FILE *fp)
{
fprintf(fp,"\nHTTP request packet\n");
fprintf(fp,"\n---------------------------------------------------\n");
print_data(fp,"method:",http_request -> req_fld -> method);
print_data(fp,"url:",http_request -> req_fld -> url);
print_data(fp,"protocol:",http_request -> req_fld ->protocol);
print_data(fp,"protocol version:",http_request -> req_fld ->pversion);
print_data(fp,"cache control:",http_request -> general_fld -> cache_control );
print_data(fp,"connection:",http_request ->general_fld -> connection);
print_data(fp,"date:",http_request ->general_fld -> date);
print_data(fp,"pragma:",http_request ->general_fld -> pragma);
print_data(fp,"trailer:",http_request ->general_fld -> trailer);
print_data(fp,"transfer coding:",http_request ->general_fld -> transfercoding);
print_data(fp,"upgrade:",http_request ->general_fld -> upgrade);
print_data(fp,"via:",http_request ->general_fld -> via);
print_data(fp,"warning:",http_request ->general_fld -> warning);
print_data(fp,"accept:",http_request ->request_fld -> accept);
print_data(fp,"accept-char-set:",http_request ->request_fld -> acc_chr_set);
print_data(fp,"accept-encode:",http_request ->request_fld -> acc_encode);
print_data(fp,"accapt-language:",http_request ->request_fld -> acc_lang);
print_data(fp,"authorize:",http_request ->request_fld -> authorize);
print_data(fp,"cookie:",http_request ->request_fld -> cookie);
print_data(fp,"expect:",http_request ->request_fld -> expect);
print_data(fp,"from:",http_request ->request_fld -> from);
print_data(fp,"host:",http_request ->request_fld -> host);
print_data(fp,"if-match:",http_request ->request_fld -> if_match);
print_data(fp,"if-modified-since:",http_request ->request_fld -> if_mod_snc);
print_data(fp,"if-none-match:",http_request ->request_fld -> if_none_mtch);
print_data(fp,"if-range:",http_request ->request_fld -> if_range);
print_data(fp,"if-unmodified-since:",http_request ->request_fld -> if_unmod_snc);
print_data(fp,"max-forward:",http_request ->request_fld -> max_fwd);
print_data(fp,"proxy-authentication:",http_request ->request_fld -> proxy_auth);
print_data(fp,"range:",http_request ->request_fld -> range);
print_data(fp,"referer:",http_request ->request_fld -> referer);
print_data(fp,"TE:",http_request ->request_fld -> te);
print_data(fp,"user-agent:",http_request ->request_fld -> uagent);
print_data(fp,"allow:",http_request ->entity_fld -> allow);
print_data(fp,"content-encode:",http_request ->entity_fld -> content_encode);
print_data(fp,"content-language:",http_request ->entity_fld -> content_lang);
print_data(fp,"content-length:",http_request ->entity_fld -> content_len);
print_data(fp,"content-location:",http_request ->entity_fld -> content_loc);
print_data(fp,"content-MD5:",http_request ->entity_fld -> content_md5);
print_data(fp,"content-rage:",http_request ->entity_fld -> content_range);
print_data(fp,"content-type:",http_request ->entity_fld -> content_type);
print_data(fp,"expires:",http_request ->entity_fld -> expires);
print_data(fp,"last-modified:",http_request ->entity_fld -> last_mod);
fprintf(fp,"\n---------------------------------------------------\n");
}
int read_chunked_msg(int socket,char msg[MAX_RCV_MSG_SIZE],int *processing)
{
int read_bytes = 0;
int length = 0;
char line[MAX_FIELD_LEN];
int cur_chunk = 0;
memset(msg,'\0',MAX_RCV_MSG_SIZE);
while (read_bytes < MAX_RCV_MSG_SIZE)
{
parse_line(socket,processing,line);
sscanf(line,"%x",&length);
if (length == 0)
{
break;
}
memset(line,'\0',MAX_FIELD_LEN);
cur_chunk = 0;
while (cur_chunk < length)
{
cur_chunk += read(socket,line,length);
strcat(msg,line);
}
read_bytes += cur_chunk;
parse_line(socket,processing,line);
}
return SUCCESS;
}
struct HTTP_REQUEST * parse_http_request(int socket,int *index,int *keep_alive)
{
char req_h[REQ_H_CNT][MAX_FIELD_LEN];
char gen_h[GEN_H_CNT][MAX_FIELD_LEN];
char entity_h[ENTITY_H_CNT][MAX_FIELD_LEN];
char req_line[MAX_METHODS][MAX_FIELD_LEN];
int content_length = 0;
char request[MAX_FIELD_LEN];
char *ptr = NULL;
int iter = 0;
char resource[MAX_FIELD_LEN];
char headers[MAX_FIELDS][MAX_FIELD_LEN];
char *web_root = NULL;
int field_count = 0;
char requested[MAX_RCV_MSG_SIZE];
int i = 0;
struct HTTP_REQUEST *http_request = NULL;
for (i = 0; i < MAX_METHODS; i++)
{
strcpy(req_line[i],"");
}
memset(requested,'\0',MAX_RCV_MSG_SIZE);
parse_line(socket,keep_alive,request);
printf("\nrequest line %s\n",request);
if (strlen(request) > 5)
{
ptr = strstr(request," HTTP/");
}
if (ptr == NULL)
{
printf("NOT HTTP !\n");
ptr = NULL;
return NULL;
}
else
{
strcpy(req_line[PROTOCOL], "HTTP"); //protocol
ptr = ptr + 6;
strcpy(req_line[VERSION] ,ptr); //protocol version
if (strlen(request) > 5)
{
ptr = strstr(request," HTTP/");
if (ptr != NULL)
{
*ptr = '\0';
}
ptr = NULL;
}
for (iter = 0; iter < MAX_METHODS; iter++)
{
if ((strlen(request) >= strlen(method[iter])) && strncmp(request, method[iter], strlen(method[iter])) == 0)
{
strcpy(req_line[METHOD] ,method[iter]);//method
ptr = request + strlen(method[iter]) + 1;
break;
}
}
web_root = NULL;
for (iter = 0; iter < MAX_METHODS; iter++)
{
web_root = strstr(req_line[METHOD],method[iter]);
if (web_root != NULL)
{
break;
}
}
if (NULL == web_root)
{
printf("\nUnknown method\n");
return NULL;
}
else
{
//printf("\nmethod %s\n",req_line[0]);
memset(resource,'\0',MAX_FIELD_LEN);
web_root = webroot();
strcpy(resource, web_root);
free(web_root);
strcat(resource,"/WEB");
strcat(resource, ptr);
memset(requested,'\0',MAX_RCV_MSG_SIZE);
unencode(resource,resource+strlen(resource),requested);
strcpy(req_line[URL] ,resource);
}
memset(requested,'\0',MAX_RCV_MSG_SIZE);
//printf("\nrequest line is parsed\n");
read_fields(socket,requested);
//printf("\nfields are read\n");
for (i = 0; i < MAX_FIELDS; i++)
{
strcpy(headers[i],"");
}
parse_fields(headers,requested,&field_count);
//printf("\nfields are paresed\n");
ptr = NULL;
for (i = 0;i < GEN_H_CNT;i++)
{
strcpy(gen_h[i],"\0");
}
for (i = 0;i < REQ_H_CNT;i++)
{
strcpy(req_h[i],"\0");
}
for (i = 0;i < ENTITY_H_CNT;i++)
{
strcpy(entity_h[i],"\0");
}
for (i = 0; iter <= field_count; iter++)
{
for (i = 0; i < GEN_H_CNT; i++)
{
ptr = strstr(headers[iter],gen[i]);
if (NULL != ptr)
{
strcpy(gen_h[i],(headers[iter] + strlen(gen[i]) + 1));
break;
}
}
if (NULL == ptr)
{
for (i = 0; i < REQ_H_CNT; i++)
{
ptr = strstr(headers[iter],req[i]);
if (NULL != ptr)
{
strcpy(req_h[i],headers[iter] + strlen(req[i]) + 1);
break;
}
}
}
if (NULL == ptr)
{
for (i = 0; i < ENTITY_H_CNT; i++)
{
ptr = strstr(headers[iter],entity[i]);
if (NULL != ptr)
{
strcpy(entity_h[i] ,(headers[iter] + strlen(entity[i]) + 1));
break;
}
}
}
}
}
http_request = http_request_packet(req_line,gen_h,req_h,entity_h);
strcpy(http_request -> msg_body -> msg ,"\0");
printf("\nreading message body\n");
if (strstr(http_request -> req_fld -> pversion,"1.0") != NULL)
{
//printf("\nITs a HTTP 1.0 request\n");
if ((http_request->entity_fld->content_len != NULL)&&((content_length = atoi(http_request -> entity_fld -> content_len)) > 0))
{
//printf("\ncontent length %d\n",content_length);
if (http_request->request_fld->expect != NULL && strstr(http_request->request_fld->expect,"100-continue") != NULL)
{
send_new(socket, "HTTP/1.1 100 Continue\r\n");
send_new(socket, SERVER"\r\n\r\n");
}
read_msg_body(socket,requested,content_length);
//printf("\nrequest body %s\n",http_request->msg_body->msg);
strcpy(http_request -> msg_body -> msg ,requested);
}
else
{
strcpy(http_request -> msg_body -> msg,"\0");
}
}
else if (strstr(http_request -> req_fld -> pversion,"1.1") != NULL)
{
//printf("\nITs a HTTP 1.1 request\n");
if (strstr(http_request->general_fld->transfercoding,"chunked")!=NULL)
{
read_chunked_msg(socket,requested,keep_alive);
strcpy(http_request -> msg_body -> msg,requested);
}
else if ((http_request->entity_fld->content_len != NULL)&&((content_length = atoi(http_request -> entity_fld -> content_len)) > 0))
{
//printf("\ncontent length %d\n",content_length);
//read_msg_body(socket,requested,content_length);
if (http_request->request_fld->expect != NULL && strstr(http_request->request_fld->expect,"100-continue") != NULL)
{
send_new(socket, "HTTP/1.1 100 Continue\r\n");
send_new(socket, SERVER"\r\n\r\n");
}
read_msg_body(socket,requested,content_length);
strcpy(http_request -> msg_body -> msg,requested);
}
else
{
strcpy(http_request -> msg_body -> msg,"\0");
}
}
printf("\nMsg body is read\n");
return http_request;
}
int last_modified(char *requested,char *time)
{
struct tm *date;
struct stat attrib;
stat(requested, &attrib);
date = gmtime(&(attrib.st_mtime));
sprintf(time,"%d/%d/%d %d:%d", (date->tm_year)+1900,(date->tm_mon)+1, date->tm_mday,date->tm_hour,date->tm_min);
return SUCCESS;
}
int retrieve_page_info(struct HTTP_REQUEST *request,struct HTTP_RESPONSE *response)
{
char *requested = request -> req_fld -> url;
struct stat buf;
int file_size = 0;
char buffer[MAX_BUFF];
char date[MAX_BUFF];
char *ptr = NULL;
int i = 0;
FILE *fp = fopen(requested,"r");
if (NULL == fp)
{
return FAILURE;
}
else
{
stat(requested,&buf);
file_size = buf.st_size;
memset(buffer,'\0',MAX_BUFF);
memset(date,'\0',MAX_BUFF);
if (FAILURE == last_modified(requested,date))
{
return FAILURE;
}
else
{
if(NULL != requested)
{
ptr = strchr(requested,'.');
if (ptr != NULL )
{
for (i = 0; extensions[i].ext != NULL; i++)
{
if (strcmp(ptr + 1, extensions[i].ext) == 0)
{
strcpy(response -> entity_header_fld -> content_type ,"Content-Type: ");
strcat(response -> entity_header_fld -> content_type ,extensions[i].mediatype);
break;
}
}
}
}
//strcpy(response -> entity_header_fld -> content_type ,"Content-Type:text/html");
sprintf(buffer,"Content-Length: %d",file_size);
strcpy(response -> entity_header_fld -> content_len ,buffer);
sprintf(buffer,"Last-Modified: %s",date);
strcpy(response -> entity_header_fld ->last_mod ,buffer);
}
}
fclose(fp);
return SUCCESS;
}
void add_field(char **destination,char *source)
{
if (*destination == NULL)
{
*destination = (char*)malloc(sizeof(char)*(strlen(source) + 1));
}
if (strlen(source) > 0)
{
*destination = realloc(*destination,strlen(*destination)+strlen(source) + 4);
strcat(*destination,source);
strcat(*destination,"\r\n");
}
}
void create_http_response_msg(http_response_packet *http_res,struct HTTP_RESPONSE *response)
{
char buffer[MAX_FIELD_LEN];
sprintf(buffer,"%s/%s %s",response -> status_line -> protocol,response -> status_line -> version,response -> status_line -> status);
add_field(&(http_res->status_line),buffer);
add_field(&(http_res->general_header),response->general_header->cache_control);
add_field(&(http_res->general_header),response->general_header->connection);
add_field(&(http_res->general_header),response ->general_header-> date);
add_field(&(http_res->general_header),response ->general_header -> pragma);
add_field(&(http_res->general_header),response ->general_header -> trailer);
add_field(&(http_res->general_header),response ->general_header -> transfercoding);
add_field(&(http_res->general_header),response ->general_header -> upgrade);
add_field(&(http_res->general_header),response ->general_header -> via);
add_field(&(http_res->general_header),response ->general_header -> warning);
add_field(&(http_res->entity_header),response->entity_header_fld->content_type);
add_field(&(http_res->entity_header),response->entity_header_fld->content_len);
add_field(&(http_res->entity_header),response->entity_header_fld->last_mod);
add_field(&(http_res->response_header),response->response_line->accept_ranges);
add_field(&(http_res->response_header),response ->response_line -> age);
add_field(&(http_res->response_header),response ->response_line -> etag);
add_field(&(http_res->response_header),response ->response_line -> location);
add_field(&(http_res->response_header),response ->response_line -> proxy_auth);
add_field(&(http_res->response_header),response ->response_line -> retry_after);
add_field(&(http_res->response_header),response ->response_line -> server);
add_field(&(http_res->response_header),response ->response_line -> set_cookie);
add_field(&(http_res->response_header),response ->response_line -> vary);
add_field(&(http_res->response_header),response ->response_line -> www_auth);
add_field(&(http_res->entity_header),response ->entity_header_fld -> allow);
add_field(&(http_res->entity_header),response ->entity_header_fld -> content_encode);
add_field(&(http_res->entity_header),response ->entity_header_fld -> content_lang);
add_field(&(http_res->entity_header),response ->entity_header_fld -> content_len);
add_field(&(http_res->entity_header),response ->entity_header_fld -> content_loc);
add_field(&(http_res->entity_header),response ->entity_header_fld -> content_md5);
add_field(&(http_res->entity_header),response ->entity_header_fld -> content_range);
add_field(&(http_res->entity_header),response ->entity_header_fld -> content_type);
add_field(&(http_res->entity_header),response ->entity_header_fld -> expires);
add_field(&(http_res->entity_header),response ->entity_header_fld -> last_mod);
http_res -> msg_body = strdup(response->msg_body->msg);
http_res -> msg_trailer = strdup("\0");
}
int create_http_head_response_pack(struct HTTP_REQUEST *request,struct HTTP_RESPONSE *response,http_response_packet *http_res)
{
http_res -> status_line = NULL;
http_res -> general_header = NULL;
http_res -> response_header = NULL;
http_res -> entity_header = NULL;
http_res -> msg_body = NULL;
http_res -> msg_trailer = NULL;
int success_failure = 0;
if (FAILURE == retrieve_page_info(request,response))
{
strcpy(response -> status_line -> protocol,"HTTP");
strcpy(response -> status_line -> version ,"1.1");
strcpy(response -> status_line -> status ,NOTFOUND);
strcpy(response -> response_line -> server ,SERVER);
strcpy(response -> response_line -> accept_ranges ,"Accept-Ranges: Bytes");
if (KEEP_ALIVE && strstr(request->general_fld->connection,"Keep-Alive") != NULL)
{
strcpy(response->general_header->connection,"Connection: Keep-Alive");
}
else
{
strcpy(response->general_header->connection,"Connection: Close");
}
success_failure = 1;
}
else
{
strcpy(response -> status_line -> protocol,"HTTP");
strcpy(response -> status_line -> version ,"1.1");
strcpy(response -> status_line -> status ,OK);
strcpy(response -> response_line -> server ,SERVER);
strcpy(response -> response_line -> accept_ranges ,"Accept-Ranges: Bytes");
if (KEEP_ALIVE && (strstr(request->general_fld->connection,"Keep-Alive") != NULL))
{
strcpy(response->general_header->connection,"Connection: Keep-Alive");
}
else
{
strcpy(response->general_header->connection,"Connection: Close");
}
strcpy(response->msg_body->msg,request->req_fld->url);
}
if (CACHE)
{
strcpy(response->general_header->cache_control,"Cache-Control: ");
strcat(response->general_header->cache_control,MAX_CACHE_AGE);
}
else
{
strcpy(response->general_header->cache_control,"Cache-Control: No-Cache");
}
create_http_response_msg(http_res,response);
return success_failure;
}
int create_http_response_pack(http_response_packet *http_res,struct HTTP_REQUEST *request,struct HTTP_RESPONSE **response)
{
struct HTTP_RESPONSE *http_response;
int method = find_method(request -> req_fld -> method);
http_response = HTTP_response_packet();
if(method > MAX_METHODS)
{
printf("\nUnknown method\n");
return FAILURE;
}
else
{
if (FAILURE == create_http_head_response_pack(request,http_response,http_res))
{
*response = http_response;
return FAILURE;
}
}
*response = http_response;
return SUCCESS;
}
/*int start_server()
{
}
int authenticate_user()
{
}*/
int update_log(char *log_file,const char *log)
{
FILE *log_f = fopen(log_file,"a+");
if (0 == fprintf(log_f,"%s",log))
{
return FAILURE;
}
fflush(log_f);
fclose(log_f);
return SUCCESS;
}
int read_line(int fd,char *message)
{
int reads = 0;
reads = read(fd,message,1024);
if (FILE_ERROR == reads)
{
perror("\nError in reading a string from file descriptor ");
return FAILURE;
}
message[reads] = '\0';
return SUCCESS;
}
int is_phppage(char *requested)
{
char *ptr = NULL;
if (NULL == requested)
{
printf("\nunknown request\n");
return FAILURE;
}
ptr = strchr(requested, '.');
if (ptr != NULL && strncmp(ptr + 1, "php",3) == 0)
{
return SUCCESS;
}
return FAILURE;
}
int is_htmlpage(char *requested)
{
char *ptr = NULL;
if (NULL == requested)
{
printf("\nunknown request\n");
return FAILURE;
}
ptr = strchr(requested, '.');
if (ptr!= NULL && strncmp(ptr+ 1, "html",4) == 0)
{
return SUCCESS;
}
return FAILURE;
}
void call_php(struct HTTP_REQUEST *request,char *php_path,int socket)
{
char *url = strdup(request -> req_fld -> url);
int method = find_method(request -> req_fld -> method);
char *uri = NULL;
char buffer[MAX_RCV_MSG_SIZE];
char *script_filename = NULL;
char *query_string = NULL;
int tmp = -1;
//char sfile[20];
memset(buffer,'\0',4096);
//memset(sfile,'\0',20);
if ((method == GET) || (method == POST))
{
if (method == 4)
{
//query_string = strdup(request -> msg_body ->msg);
//script_filename = strdup(request -> req_fld -> url);
if (NULL != request -> request_fld -> cookie);
{
setenv("HTTP_COOKIE",request -> request_fld -> cookie,1);
}
if (strlen(request->msg_body->msg) == 0)
{
perror("\nNo msg to write\n");
write(socket,"error",10);
}
sprintf(buffer,"echo \"%s\" | REDIRECT_STATUS=CGI REQUEST_METHOD=POST SCRIPT_FILENAME=%s SCRIPT_NAME=%s CONTENT_TYPE=application/x-www-form-urlencoded CONTENT_LENGTH=%d %s",request->msg_body->msg,request->req_fld->url,request->req_fld->url,strlen(request->msg_body->msg),php_path);
//free(query_string);
//free(script_filename);
//free_http_packets(&request,NULL);
//printf("\n%s\n",buffer);
free(url);
//sprintf(sfile,"%d",socket);
tmp=dup(1);
//close(1);
//fd1=dup(socket);
//close(socket);
dup2(socket,STDOUT_FILENO);
close(socket);
//execl("./phppost","phppost",buffer,sfile,NULL);
system(buffer);
dup2(tmp,STDOUT_FILENO);
//close(STDOUT_FILENO);
//close(file);
//exit(SUCCESS);
}
else if (method == GET)
{
uri = strchr(url,'?');
if (uri != NULL)
{
query_string = uri + 1;
(*(uri)) = '\0';
script_filename = url;
}
else
{
query_string = "";
script_filename = url;
}
setenv("REQUEST_METHOD","GET",1);
setenv("REDIRECT_STATUS","CGI",1);
if (NULL != request -> request_fld -> cookie);
{
setenv("HTTP_COOKIE",request -> request_fld -> cookie,1);
}
setenv("GATEWAY_INTERFACE","CGI/1.1",1);
setenv("QUERY_STRING",query_string,1);
setenv("SCRIPT_FILENAME",script_filename,1);
if(url != NULL)
free(url);
//free_http_packets(&request,NULL);
//dup2(socket, STDOUT_FILENO);
//execl(php_path,"php-cgi",NULL);
tmp=dup(1);
//close(1);
//fd1=dup(socket);
//close(socket);
dup2(socket,STDOUT_FILENO);
close(socket);
system(php_path);
dup2(tmp,STDOUT_FILENO);
//close(socket);
//exit(SUCCESS);
}
}
}
int get_file_size(int fd)
{
struct stat stat_struct;
if (fstat(fd, &stat_struct) == -1)
{
return (1);
}
return (int) stat_struct.st_size;
}
void replace(char *s, char old, char new)
{
char *p = s;
while(*p != '\0')
{
if(*p == old)
*p = new;
++p;
}
}
int send_file(int fd,char *requested)
{
int total_bytes_sent = 0;
int bytes_sent = 0;
int length = 0;
int attempt = 0;
int fd1 = open(requested, O_RDONLY, 0);
if (fd1 == 1)
{
printf("\nError sending data to client\n");
return FAILURE;
}
length = get_file_size(fd1);
while (total_bytes_sent < length && attempt < MAX_ATTEMPTS)
{
//Zero copy optimization
attempt++;
if ((bytes_sent = sendfile(fd, fd1, 0,length - total_bytes_sent)) <= 0)
{
if (errno == EINTR || errno == EAGAIN)
{
continue;
}
}
total_bytes_sent += bytes_sent;
}
return SUCCESS;
}
int peer_addr(int s, char *buf, int bufsiz)
{
int z;
struct sockaddr_in adr_inet;/* AF_INET */
int len_inet; /* length */
/*
* Obtain the address of the socket:
*/
len_inet = sizeof adr_inet;
z = getpeername(s, (struct sockaddr *)&adr_inet, &len_inet);
if ( z == -1)
{
return FAILURE; /* Failed */
}
/*
* Convert address into a string
* form that can be displayed:
*/
sprintf(buf,"%s:%u",inet_ntoa(adr_inet.sin_addr),(unsigned)ntohs(adr_inet.sin_port));
return SUCCESS;
}
int send_media_file(int fd,char *resource,int media_type)
{
char * s = NULL;
int fd1 = -1;
int i = 0;
int method = 1;
size_t total_bytes_sent = 0;
ssize_t bytes_sent = 0;
int attempt = 0;
int length = 0;
char buffer[MAX_BUFF];
memset(buffer,'\0',MAX_BUFF);
if(NULL != resource)
{
s = strchr(resource,'.');
for (i = 0; extensions[i].ext != NULL; i++)
{
if (strcmp(s + 1, extensions[i].ext) == 0)
{
fd1 = open(resource, O_RDONLY, 0);
printf("Opening \"%s\"\n", resource);
if (fd1 == -1)
{
printf("404 File not found Error\n");
send_new(fd, "HTTP/1.1 404 Not Found\r\n");
send_new(fd, "Server : RAMESHHTTP\r\n\r\n");
send_new(fd, "<html><head><title>404 Not Found</head></title>");
send_new(fd, "<body><p>404 Not Found: The requested resource could not be found!</p></body></html> ");
return FAILURE;
}
else
{
if ((length = get_file_size(fd1)) == -1)
{
printf("Error in getting size !\n");
}
printf("200 OK, Content-Type: %s \r\n ",extensions[i].mediatype);
send_new(fd, "HTTP/1.1 200 OK \r\n ");
send_new(fd,"Accept-Ranges: Bytes \r\n ");
send_new(fd, "Server: RAMESHHTTP \r\n ");
if (media_type == DOWNLOAD)
{
sprintf(buffer,"Content-Disposition: attachment \r\n filename= %s\r\n",resource);
send_new(fd, buffer);
}
sprintf(buffer,"Content-Length: %d \r\n ",length);
send_new(fd, buffer);
sprintf(buffer,"Content-Type: %s \r\n\r\n ",extensions[i].mediatype);
send_new(fd, buffer);
if (method == 1) // if it is a GET request
{
while (total_bytes_sent < length && attempt < 10)
{
//Zero copy optimization
attempt++;;
if ((bytes_sent = sendfile(fd, fd1, 0,length - total_bytes_sent)) <= 0)
{
if (errno == EINTR || errno == EAGAIN)
{
continue;
}
perror("sendfile");
return -1;
}
total_bytes_sent += bytes_sent;
}
}
}
break;
}
int size = sizeof(extensions) / sizeof(extensions[0]);
if (i == size - 2)
{
printf("415 Unsupported Media Type\n");
send_new(fd, "HTTP/1.1 415 Unsupported Media Type\r\n");
send_new(fd, "Server : RAMESHHTTP\r\n\r\n");
send_new(fd, "<html><head><title>415 Unsupported Media Type</head></title> ");
send_new(fd, "<body><p>415 Unsupported Media Type!</p></body></html> ");
}
}
}
return SUCCESS;
}
int encode_msg(char *msg)
{
int length = 0;
int i = 0;
int j = 0;
char temp[MAX_RCV_MSG_SIZE];
memset(temp,'\0',MAX_RCV_MSG_SIZE);
length = strlen(msg);
for (i = 0; i < length; i++)
{
if (msg[i]=='&' || msg[i] == ' ' || msg[i] == '\'' || msg[i]=='\"' || msg[i] == '\?')
{
temp[j]='\\';
temp[j+1]=msg[i];
j = j + 2;
}
else
{
temp[j] = msg[i];
j++;
}
}
strcpy(msg,temp);
return SUCCESS;
}
int serve(int socket,http_response_packet *http_res,char *log)
{
int index = 0;
char buffer[MAX_RCV_MSG_SIZE];
struct stat buf;
char * ptr = NULL;
char php_path[MAX_BUFF];
char *web_root = NULL;
char content_len[20];
struct HTTP_REQUEST *requested = NULL;
struct HTTP_RESPONSE *response = NULL;
int method = -1;
int count = 0;
FILE * log_file = NULL;
int keep_alive = 1;
int processing = 0;
thread_count++;
char file_name[MAX_FIELD_LEN];
char temp[MAX_FIELD_LEN];
int file = -1;
int attempts = 0;
memset(file_name,'\0',MAX_FIELD_LEN);
void alarm_handler(int signum)
{
attempts++;
if (socket != -1)
{
close(socket);
socket = -1;
}
thread_count--;
printf("\nNumber of processes going on : %d\n",thread_count);
pthread_detach(pthread_self());
pthread_exit(NULL);
}
signal(SIGALRM, alarm_handler);
printf("\nNumber of processes going on : %d\n",thread_count);
if (FAILURE == peer_addr(socket,file_name,MAX_FIELD_LEN))
{
sprintf(file_name,"unknownclient");
}
printf("\nconnection from %s\n",file_name);
//strcat(file_name,log);
replace(file_name,'.','_');
replace(file_name,'/','_');
replace(file_name,' ','_');
replace(file_name,'\n','_');
replace(file_name,':','_');
strcat(file_name,".txt");
//printf("\ntmp file name %s\n",file_name);
web_root = webroot();
strcpy(temp,web_root);
free(web_root);
strcat(temp,"/temp/");
strcat(temp,file_name);
while((keep_alive == 1) && (count < MAX_ATTEMPTS) && (exit_server != 1))
{
count++;
alarm(TIMER);
requested = parse_http_request(socket,&index,&keep_alive);
if (requested == NULL)
{
continue;
}
//alarm(TIMER);
printf("\ncreated request packet\n");
method = find_method(requested->req_fld->method);
if(method == GET && strstr(requested->req_fld->url,".html")==NULL && strstr(requested->req_fld->url,".php")==NULL && requested->req_fld->url[strlen(requested->req_fld->url)-1]!='/' && strstr(requested->req_fld->url,".txt") == NULL)
{
send_media_file(socket,requested->req_fld->url,DOWNLOAD);
close(socket);
socket = -1;
keep_alive = 0;
printf("\nFile %s sent to client\n",requested->req_fld->url);
update_log(log,"\nsent file to client\n");
}
else
{
if(requested == NULL)
{
continue;
}
if (strstr(requested->general_fld->connection,"Keep-Alive") == NULL)
{
printf("\nconnection is not keep-alive\n");
keep_alive = 0;
}
log_file = fopen(log,"w+");
print_http_request(requested,log_file);
//print_http_request(requested,stdout);
fclose(log_file);
memset(php_path,'\0',MAX_FIELD_LEN);
memset(content_len,'\0',20);
memset(buffer,'\0',MAX_RCV_MSG_SIZE);
if (strstr(requested->msg_body->msg,"_method=put") != NULL)
{
method = PUT;
}
if ((method == PUT || method == POST))
{
strcat(requested->msg_body->msg," ");
//encode_msg(requested->msg_body->msg);
}
if (PUT == method)
{
printf("\nPUT method\n");
//printf("\nmsg body %s \n",requested->msg_body->msg);
if (strlen(requested->msg_body->msg) == 0)
{
perror("\nNo msg to write\n");
file = open(temp,O_WRONLY|O_CREAT,S_IRWXU);
write(file,"error no msg to write",10);
send_media_file(socket,temp,DISPLAY);
close(file);
}
else if ((exit_server != 1)&&(fork()==0))
{
file = open(temp,O_WRONLY|O_CREAT,S_IRWXU);
sprintf(buffer,"./putpost 3 \'%s\' \'%s\' \'%d\'",requested->req_fld->url,requested->msg_body->msg,file);
system(buffer);
close(file);
exit(SUCCESS);
}
else
{
wait(NULL);
strcpy(requested->req_fld->url,temp);
printf("sending %s to client",requested->req_fld->url);
send_media_file(socket,requested->req_fld->url,DISPLAY);
sprintf(buffer,"rm %s",requested->req_fld->url);
system(buffer);
close(socket);
socket = -1;
keep_alive = 0;
}
}
else
{
//printf("\nmsg body %s \n",requested->msg_body->msg);
if (POST == method && requested->req_fld->url[strlen(requested->req_fld->url)-1]=='/')
{
if (strlen(requested->msg_body->msg) == 0)
{
perror("\nNo msg to write\n");
file = open(temp,O_WRONLY|O_CREAT,S_IRWXU);
write(file,"error no msg to write",10);
send_media_file(socket,temp,DISPLAY);
close(file);
}
else if ((exit_server != 1)&&(fork()==0))
{
file = open(temp,O_WRONLY|O_CREAT,S_IRWXU);
sprintf(buffer,"./putpost 4 '%s' '%s' '%d'",requested->req_fld->url,requested->msg_body->msg,file);
system(buffer);
close(file);
exit(SUCCESS);
}
else
{
wait(NULL);
strcpy(requested->req_fld->url,temp);
printf("sending %s to client",requested->req_fld->url);
send_media_file(socket,requested->req_fld->url,DISPLAY);
sprintf(buffer,"rm %s",requested->req_fld->url);
system(buffer);
close(socket);
socket = -1;
keep_alive = 0;
}
}
else
{
if (method == GET && requested->req_fld->url[strlen(requested -> req_fld -> url) - 1] == '/')
{
web_root=webroot();
setenv("WEBDIR",requested->req_fld->url,1);
sprintf(buffer,"%s/WEB/index.php",web_root);
free(web_root);
strcpy(requested->req_fld->url,buffer);
}
if (SUCCESS == is_phppage(requested -> req_fld -> url) && (method == GET || method == POST))
{
printf("\nits a php page\n");
strcpy(buffer,requested -> req_fld -> url);
ptr = (strchr(buffer,'?'));
if (ptr != NULL)
{
*ptr = '\0';
}
if (-1 != stat(buffer,&buf))
{
update_log(log,"\nHTTP/1.1 200 OK\n php page is served by php cgi\n");
}
else
{
update_log(log,"\nHTTP/1.1 204 NOCONTENT\n");
}
if((exit_server != 1)&&(fork()==0))
{
printf("php request");
fflush(stdout);
web_root = webroot();
sprintf(php_path,"%s/php-5.6.3/sapi/cgi/php-cgi",web_root);
free(web_root);
file = open(temp,O_WRONLY|O_CREAT,S_IRWXU);
call_php(requested,php_path,file);
exit(SUCCESS);
}
else
{
wait(NULL);
strcpy(requested->req_fld->url,temp);
printf("sending %s to client",requested->req_fld->url);
send_media_file(socket,requested->req_fld->url,DISPLAY);
sprintf(buffer,"rm %s",requested->req_fld->url);
system(buffer);
close(socket);
socket = -1;
keep_alive = 0;
}
}
else
{
if ((requested->req_fld->url[strlen(requested -> req_fld -> url) - 1] == '/') && method != POST)
{
sprintf(buffer,"%sindex.html",requested->req_fld->url);
strcpy(requested -> req_fld -> url ,buffer);
}
printf("\nurl requested is %s\n",requested->req_fld->url);
printf("\nits a GET or HEAD or POST request request\n");
if (exit_server != 1)
{
if ( FAILURE == create_http_response_pack(http_res,requested,&response))
{
update_log(log,"\nunable to create response packet page not found\n");
send_http_response_pack(socket,http_res,method);
printf("404 File not found Error\n");
send_new(socket,"404 NOTFOUND\r\n");
}
else
{
if (method == GET || method == HEAD || method == POST)
{
send_http_response_pack(socket,http_res,method);
}
if(method == GET)
{
send_file(socket,requested->req_fld->url);
printf("\nFile sent to client\n");
update_log(log,"\nsent page to client\n");
}
}
log_file = fopen(log,"w+");
print_http_response(response,log_file);
fclose(log_file);
if (http_res != NULL)
{
free_it((void*)&(http_res->status_line));
free_it((void*)&(http_res->general_header));
free_it((void*)&(http_res->response_header));
free_it((void*)&(http_res->entity_header));
free_it((void*)&(http_res->msg_body));
free_it((void*)&(http_res->msg_trailer));
}
}
}
}
}
}
printf("\nfreeing http packets\n");
if (requested != NULL)
{
free_http_packets(&requested,&response);
}
printf("\nhttp packets are freed\n");
processing = 0;
}
if (socket != -1)
{
close(socket);
socket = -1;
}
thread_count--;
printf("\nNumber of processes going on : %d\n",thread_count);
pthread_detach(pthread_self());
pthread_exit(NULL);
}
struct tm*get_current_time()
{
time_t rawtime;
struct tm * timeinfo;
time (&rawtime);
timeinfo = localtime (&rawtime);
return timeinfo;
}
void *serve_client(void* new_socket)
{
int socket = *((int*)new_socket);
char details[MAX_FIELD_LEN];
http_response_packet http_res;
char log_f[MAX_FIELD_LEN];
char log_num[20];
char buffer[MAX_FIELD_LEN];
int log = 0;
char *web_root = NULL;
free((int*)new_socket);
memset(details,'\0',100);
if (FAILURE == peer_addr(socket,details,MAX_FIELD_LEN))
{
sprintf(details,"unknown client");
}
//printf("Connection accepted from %s",details);
if (-1 == socket)
{
update_log("log.txt","\nError receiving from client\n");
}
else
{
//printf("\nREQUEST RECEIVED!!!\n\n%s\n",read_buf);
pthread_mutex_lock(&log_mutex);
log = log_count;
log_count++;
pthread_mutex_unlock(&log_mutex);
memset(log_f,'\0',MAX_FIELD_LEN);
memset(log_num,'\0',20);
memset(buffer,'\0',MAX_FIELD_LEN);
sprintf(log_f,"%s",asctime(get_current_time()));
web_root = webroot();
sprintf(buffer,"\nrequest from client %s at %s,log details are stored in %s/log/",details,log_f,web_root);
replace(log_f,' ','_');
replace(log_f,'\n','_');
replace(log_f,':','_');
strcat(buffer,log_f);
sprintf(log_num,"?%d",log);
strcat(buffer,log_num);
strcat(buffer,".log\n");
update_log("log.txt",buffer);
sprintf(buffer,"%s/log/%s%s.log",web_root,log_f,log_num);
free(web_root);
//printf("\ncalling serve function\n");
if (exit_server != 1)
{
serve(socket,&http_res,buffer);
}
//printf("\nfinished serve function\n");
printf("\nServed client %s\n",details);
// thread_count--;
}
//close(socket);
pthread_detach(pthread_self());
pthread_exit(NULL);
}
int init_shared_flag(int **shared_memory,key_t shm_key)
{
int segment_id;
const int shared_segment_size = 0x04;
/* Allocate a shared memory segment. */
if ((segment_id = shmget (shm_key, shared_segment_size,S_IRUSR | S_IWUSR)) == ERROR)
{
return FAILURE;
}
/* Attach the shared memory segment*/
*shared_memory = (int*) shmat (segment_id, 0, 0);
if (*shared_memory == NULL)
{
return FAILURE;
}
/* Detach the shared memory segment. */
return SUCCESS;
}
void detach_shared_flag(int *shared_memory)
{
shmdt (shared_memory);
}
int main(int argc , char *argv[])
{
int c;
struct sockaddr_in server , client;
int *new_socket = NULL;
char buf[MAX_BUFF];
int new_s = -1;
int *shared_flag = NULL;
int *status = NULL;
pthread_t tid = -1;
if (init_shared_flag(&shared_flag,'&') == FAILURE)
{
printf("\nPlease run admin first\n");
exit(SUCCESS);
}
if (init_shared_flag(&status,'*') == FAILURE)
{
printf("\nPlease run admin first\n");
exit(SUCCESS);
}
*shared_flag = STOP_SERVER;
*status = 1;
//Create socket
socket_desc = socket(AF_INET , SOCK_STREAM , 0);
if (socket_desc == -1)
{
printf("Could not create socket");
exit(FAILURE);
}
//Prepare the sockaddr_in structure
server.sin_family = AF_INET;
server.sin_addr.s_addr = INADDR_ANY;
server.sin_port = htons(atoi(argv[1]));
//Bind
if( bind(socket_desc,(struct sockaddr *)&server , sizeof(server)) < 0)
{
puts("bind failed");
return 1;
}
puts("bind done");
//Listen
listen(socket_desc , 10); //Accept and incoming connection
// Put the socket in non-blocking mode:
if(fcntl(socket_desc, F_SETFL, fcntl(socket_desc, F_GETFL) | O_NONBLOCK) < 0)
{
perror("\nerror setting socket in non blocking mode\n");
}
else
{
printf("\nYour socket is non blocking\n");
}
puts("Waiting for incoming client connections...");
c = sizeof(struct sockaddr_in);
void alarm_handler()
{
close(socket_desc);
printf("\nServer is exiting....\n");
printf("\nNumber of processes going on:%d\n",thread_count);
exit(SUCCESS);
}
void signal_handler(int signum)
{
*status = -1;
exit_server = 1;
printf("\nServer is going to exit....\n");
printf("\nNumber of processes going on:%d\n",thread_count);
alarm(15);
signal(SIGALRM, alarm_handler);
}
/*void seg_handle(int signum)
{
perror("\nsegmentation violation occured\n");
}*/
signal(SIGINT,signal_handler);
signal(SIGPIPE,SIG_IGN);
printf("\nMonitoring.....\n");
printf("\nControl the server from admin\n");
while(*shared_flag != EXIT_MONITOR)
{
if (*shared_flag == STOP_SERVER)
{
exit_server = 1;
}
if (*shared_flag == RUN_SERVER)
{
exit_server = 0;
if ((new_s = accept(socket_desc, (struct sockaddr *)&client, (socklen_t*)&c)))
{
if (new_s != EAGAIN && new_s != ERROR)
{
new_socket = (int*)malloc(sizeof(int));
*new_socket = new_s;
printf("Connection from %s\n",inet_ntop(AF_INET,&client.sin_addr,buf,sizeof(buf)));
fflush(stdout);
if (thread_count <= MAX_PROCESSES)
{
if (exit_server != 1 && pthread_create(&tid,NULL,serve_client,(void*)(new_socket)) != 0)
{
perror("\nError creating thread for serving a client\n");
continue;
}
}
else
{
close((*new_socket));
free(new_socket);
printf("\naccept failed\n");
continue;
}
printf("\nNumber of processes running %d\n",thread_count);
}
}
}
}
printf("\nMonitoring program is exiting..");
printf("\nServer is going to exit....\n");
printf("\nNumber of processes going on:%d\n",thread_count);
*status = -1;
exit_server = 1;
*shared_flag = EXIT_MONITOR;
detach_shared_flag(shared_flag);
detach_shared_flag(status);
sleep(TIMER);
close(socket_desc);
exit(SUCCESS);
}
|
the_stack_data/148617.c | /**
* popen - 打开一个指向进程的带缓冲的连接
* popendemo.c
* demostrates how to open a program for standard i/o
* important points:
* 1. popen() returns a FILE *, just like fopen()
* 2. the FILE * it returns can be read/written
* with all the standard functions
* 3. you need to use pclose() when done
*/
#include <stdio.h>
#include <stdlib.h>
int main () {
FILE *fp;
char buf[100];
int i = 0;
fp = popen("who|sort", "r"); /* open the command */
while (fgets(buf, 100, fp) != NULL) { /* read from command */
printf("%3d %s", i++, buf);
}
pclose(fp);
return 0;
} |
the_stack_data/31388896.c | /* { dg-options "-O2" } */
double arr[4][4];
void
foo ()
{
arr[0][1] = 1;
arr[1][0] = -1;
arr[2][0] = 1;
arr[1][1] = -1;
arr[0][2] = 1;
arr[0][3] = -1;
arr[1][2] = 1;
arr[2][1] = -1;
arr[3][0] = 1;
arr[3][1] = -1;
arr[2][2] = 1;
arr[1][3] = -1;
arr[2][3] = 1;
arr[3][2] = -1;
}
/* { dg-final { scan-assembler-times "stp\td\[0-9\]+, d\[0-9\]" 7 } } */
|
the_stack_data/992736.c | #include <stdio.h>
size_t my_strnlen(char const *string, int size);
int main (void) {
char test[4] = "hell";
size_t x = my_strnlen(test, 4);
printf("%lu\n", x);
}
size_t my_strnlen(char const *string, int size) {
register size_t length;
for (length = 0; length < size; length++) {
if (*string++ == '\0') {
break;
}
}
return length;
}
|
the_stack_data/9513512.c | // SYZFAIL: mmap of output file failed
// https://syzkaller.appspot.com/bug?id=38133c2b78e7e8ca5545
// status:0
// autogenerated by syzkaller (https://github.com/google/syzkaller)
#define _GNU_SOURCE
#include <arpa/inet.h>
#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <netinet/in.h>
#include <sched.h>
#include <setjmp.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>
#include <linux/capability.h>
#include <linux/genetlink.h>
#include <linux/if_addr.h>
#include <linux/if_ether.h>
#include <linux/if_link.h>
#include <linux/if_tun.h>
#include <linux/in6.h>
#include <linux/ip.h>
#include <linux/neighbour.h>
#include <linux/net.h>
#include <linux/netlink.h>
#include <linux/rtnetlink.h>
#include <linux/tcp.h>
#include <linux/veth.h>
static unsigned long long procid;
static __thread int skip_segv;
static __thread jmp_buf segv_env;
static void segv_handler(int sig, siginfo_t* info, void* ctx)
{
uintptr_t addr = (uintptr_t)info->si_addr;
const uintptr_t prog_start = 1 << 20;
const uintptr_t prog_end = 100 << 20;
int skip = __atomic_load_n(&skip_segv, __ATOMIC_RELAXED) != 0;
int valid = addr < prog_start || addr > prog_end;
if (skip && valid) {
_longjmp(segv_env, 1);
}
exit(sig);
}
static void install_segv_handler(void)
{
struct sigaction sa;
memset(&sa, 0, sizeof(sa));
sa.sa_handler = SIG_IGN;
syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8);
syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8);
memset(&sa, 0, sizeof(sa));
sa.sa_sigaction = segv_handler;
sa.sa_flags = SA_NODEFER | SA_SIGINFO;
sigaction(SIGSEGV, &sa, NULL);
sigaction(SIGBUS, &sa, NULL);
}
#define NONFAILING(...) \
({ \
int ok = 1; \
__atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST); \
if (_setjmp(segv_env) == 0) { \
__VA_ARGS__; \
} else \
ok = 0; \
__atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST); \
ok; \
})
static void sleep_ms(uint64_t ms)
{
usleep(ms * 1000);
}
static uint64_t current_time_ms(void)
{
struct timespec ts;
if (clock_gettime(CLOCK_MONOTONIC, &ts))
exit(1);
return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}
static void use_temporary_dir(void)
{
char tmpdir_template[] = "./syzkaller.XXXXXX";
char* tmpdir = mkdtemp(tmpdir_template);
if (!tmpdir)
exit(1);
if (chmod(tmpdir, 0777))
exit(1);
if (chdir(tmpdir))
exit(1);
}
static bool write_file(const char* file, const char* what, ...)
{
char buf[1024];
va_list args;
va_start(args, what);
vsnprintf(buf, sizeof(buf), what, args);
va_end(args);
buf[sizeof(buf) - 1] = 0;
int len = strlen(buf);
int fd = open(file, O_WRONLY | O_CLOEXEC);
if (fd == -1)
return false;
if (write(fd, buf, len) != len) {
int err = errno;
close(fd);
errno = err;
return false;
}
close(fd);
return true;
}
struct nlmsg {
char* pos;
int nesting;
struct nlattr* nested[8];
char buf[4096];
};
static void netlink_init(struct nlmsg* nlmsg, int typ, int flags,
const void* data, int size)
{
memset(nlmsg, 0, sizeof(*nlmsg));
struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf;
hdr->nlmsg_type = typ;
hdr->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK | flags;
memcpy(hdr + 1, data, size);
nlmsg->pos = (char*)(hdr + 1) + NLMSG_ALIGN(size);
}
static void netlink_attr(struct nlmsg* nlmsg, int typ, const void* data,
int size)
{
struct nlattr* attr = (struct nlattr*)nlmsg->pos;
attr->nla_len = sizeof(*attr) + size;
attr->nla_type = typ;
if (size > 0)
memcpy(attr + 1, data, size);
nlmsg->pos += NLMSG_ALIGN(attr->nla_len);
}
static void netlink_nest(struct nlmsg* nlmsg, int typ)
{
struct nlattr* attr = (struct nlattr*)nlmsg->pos;
attr->nla_type = typ;
nlmsg->pos += sizeof(*attr);
nlmsg->nested[nlmsg->nesting++] = attr;
}
static void netlink_done(struct nlmsg* nlmsg)
{
struct nlattr* attr = nlmsg->nested[--nlmsg->nesting];
attr->nla_len = nlmsg->pos - (char*)attr;
}
static int netlink_send_ext(struct nlmsg* nlmsg, int sock, uint16_t reply_type,
int* reply_len, bool dofail)
{
if (nlmsg->pos > nlmsg->buf + sizeof(nlmsg->buf) || nlmsg->nesting)
exit(1);
struct nlmsghdr* hdr = (struct nlmsghdr*)nlmsg->buf;
hdr->nlmsg_len = nlmsg->pos - nlmsg->buf;
struct sockaddr_nl addr;
memset(&addr, 0, sizeof(addr));
addr.nl_family = AF_NETLINK;
ssize_t n = sendto(sock, nlmsg->buf, hdr->nlmsg_len, 0,
(struct sockaddr*)&addr, sizeof(addr));
if (n != (ssize_t)hdr->nlmsg_len) {
if (dofail)
exit(1);
return -1;
}
n = recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
if (reply_len)
*reply_len = 0;
if (n < 0) {
if (dofail)
exit(1);
return -1;
}
if (n < (ssize_t)sizeof(struct nlmsghdr)) {
errno = EINVAL;
if (dofail)
exit(1);
return -1;
}
if (hdr->nlmsg_type == NLMSG_DONE)
return 0;
if (reply_len && hdr->nlmsg_type == reply_type) {
*reply_len = n;
return 0;
}
if (n < (ssize_t)(sizeof(struct nlmsghdr) + sizeof(struct nlmsgerr))) {
errno = EINVAL;
if (dofail)
exit(1);
return -1;
}
if (hdr->nlmsg_type != NLMSG_ERROR) {
errno = EINVAL;
if (dofail)
exit(1);
return -1;
}
errno = -((struct nlmsgerr*)(hdr + 1))->error;
return -errno;
}
static int netlink_send(struct nlmsg* nlmsg, int sock)
{
return netlink_send_ext(nlmsg, sock, 0, NULL, true);
}
static int netlink_query_family_id(struct nlmsg* nlmsg, int sock,
const char* family_name, bool dofail)
{
struct genlmsghdr genlhdr;
memset(&genlhdr, 0, sizeof(genlhdr));
genlhdr.cmd = CTRL_CMD_GETFAMILY;
netlink_init(nlmsg, GENL_ID_CTRL, 0, &genlhdr, sizeof(genlhdr));
netlink_attr(nlmsg, CTRL_ATTR_FAMILY_NAME, family_name,
strnlen(family_name, GENL_NAMSIZ - 1) + 1);
int n = 0;
int err = netlink_send_ext(nlmsg, sock, GENL_ID_CTRL, &n, dofail);
if (err < 0) {
return -1;
}
uint16_t id = 0;
struct nlattr* attr = (struct nlattr*)(nlmsg->buf + NLMSG_HDRLEN +
NLMSG_ALIGN(sizeof(genlhdr)));
for (; (char*)attr < nlmsg->buf + n;
attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) {
if (attr->nla_type == CTRL_ATTR_FAMILY_ID) {
id = *(uint16_t*)(attr + 1);
break;
}
}
if (!id) {
errno = EINVAL;
return -1;
}
recv(sock, nlmsg->buf, sizeof(nlmsg->buf), 0);
return id;
}
static int netlink_next_msg(struct nlmsg* nlmsg, unsigned int offset,
unsigned int total_len)
{
struct nlmsghdr* hdr = (struct nlmsghdr*)(nlmsg->buf + offset);
if (offset == total_len || offset + hdr->nlmsg_len > total_len)
return -1;
return hdr->nlmsg_len;
}
static void netlink_add_device_impl(struct nlmsg* nlmsg, const char* type,
const char* name)
{
struct ifinfomsg hdr;
memset(&hdr, 0, sizeof(hdr));
netlink_init(nlmsg, RTM_NEWLINK, NLM_F_EXCL | NLM_F_CREATE, &hdr,
sizeof(hdr));
if (name)
netlink_attr(nlmsg, IFLA_IFNAME, name, strlen(name));
netlink_nest(nlmsg, IFLA_LINKINFO);
netlink_attr(nlmsg, IFLA_INFO_KIND, type, strlen(type));
}
static void netlink_add_device(struct nlmsg* nlmsg, int sock, const char* type,
const char* name)
{
netlink_add_device_impl(nlmsg, type, name);
netlink_done(nlmsg);
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static void netlink_add_veth(struct nlmsg* nlmsg, int sock, const char* name,
const char* peer)
{
netlink_add_device_impl(nlmsg, "veth", name);
netlink_nest(nlmsg, IFLA_INFO_DATA);
netlink_nest(nlmsg, VETH_INFO_PEER);
nlmsg->pos += sizeof(struct ifinfomsg);
netlink_attr(nlmsg, IFLA_IFNAME, peer, strlen(peer));
netlink_done(nlmsg);
netlink_done(nlmsg);
netlink_done(nlmsg);
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static void netlink_add_hsr(struct nlmsg* nlmsg, int sock, const char* name,
const char* slave1, const char* slave2)
{
netlink_add_device_impl(nlmsg, "hsr", name);
netlink_nest(nlmsg, IFLA_INFO_DATA);
int ifindex1 = if_nametoindex(slave1);
netlink_attr(nlmsg, IFLA_HSR_SLAVE1, &ifindex1, sizeof(ifindex1));
int ifindex2 = if_nametoindex(slave2);
netlink_attr(nlmsg, IFLA_HSR_SLAVE2, &ifindex2, sizeof(ifindex2));
netlink_done(nlmsg);
netlink_done(nlmsg);
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static void netlink_add_linked(struct nlmsg* nlmsg, int sock, const char* type,
const char* name, const char* link)
{
netlink_add_device_impl(nlmsg, type, name);
netlink_done(nlmsg);
int ifindex = if_nametoindex(link);
netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static void netlink_add_vlan(struct nlmsg* nlmsg, int sock, const char* name,
const char* link, uint16_t id, uint16_t proto)
{
netlink_add_device_impl(nlmsg, "vlan", name);
netlink_nest(nlmsg, IFLA_INFO_DATA);
netlink_attr(nlmsg, IFLA_VLAN_ID, &id, sizeof(id));
netlink_attr(nlmsg, IFLA_VLAN_PROTOCOL, &proto, sizeof(proto));
netlink_done(nlmsg);
netlink_done(nlmsg);
int ifindex = if_nametoindex(link);
netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static void netlink_add_macvlan(struct nlmsg* nlmsg, int sock, const char* name,
const char* link)
{
netlink_add_device_impl(nlmsg, "macvlan", name);
netlink_nest(nlmsg, IFLA_INFO_DATA);
uint32_t mode = MACVLAN_MODE_BRIDGE;
netlink_attr(nlmsg, IFLA_MACVLAN_MODE, &mode, sizeof(mode));
netlink_done(nlmsg);
netlink_done(nlmsg);
int ifindex = if_nametoindex(link);
netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static void netlink_add_geneve(struct nlmsg* nlmsg, int sock, const char* name,
uint32_t vni, struct in_addr* addr4,
struct in6_addr* addr6)
{
netlink_add_device_impl(nlmsg, "geneve", name);
netlink_nest(nlmsg, IFLA_INFO_DATA);
netlink_attr(nlmsg, IFLA_GENEVE_ID, &vni, sizeof(vni));
if (addr4)
netlink_attr(nlmsg, IFLA_GENEVE_REMOTE, addr4, sizeof(*addr4));
if (addr6)
netlink_attr(nlmsg, IFLA_GENEVE_REMOTE6, addr6, sizeof(*addr6));
netlink_done(nlmsg);
netlink_done(nlmsg);
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
#define IFLA_IPVLAN_FLAGS 2
#define IPVLAN_MODE_L3S 2
#undef IPVLAN_F_VEPA
#define IPVLAN_F_VEPA 2
static void netlink_add_ipvlan(struct nlmsg* nlmsg, int sock, const char* name,
const char* link, uint16_t mode, uint16_t flags)
{
netlink_add_device_impl(nlmsg, "ipvlan", name);
netlink_nest(nlmsg, IFLA_INFO_DATA);
netlink_attr(nlmsg, IFLA_IPVLAN_MODE, &mode, sizeof(mode));
netlink_attr(nlmsg, IFLA_IPVLAN_FLAGS, &flags, sizeof(flags));
netlink_done(nlmsg);
netlink_done(nlmsg);
int ifindex = if_nametoindex(link);
netlink_attr(nlmsg, IFLA_LINK, &ifindex, sizeof(ifindex));
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static void netlink_device_change(struct nlmsg* nlmsg, int sock,
const char* name, bool up, const char* master,
const void* mac, int macsize,
const char* new_name)
{
struct ifinfomsg hdr;
memset(&hdr, 0, sizeof(hdr));
if (up)
hdr.ifi_flags = hdr.ifi_change = IFF_UP;
hdr.ifi_index = if_nametoindex(name);
netlink_init(nlmsg, RTM_NEWLINK, 0, &hdr, sizeof(hdr));
if (new_name)
netlink_attr(nlmsg, IFLA_IFNAME, new_name, strlen(new_name));
if (master) {
int ifindex = if_nametoindex(master);
netlink_attr(nlmsg, IFLA_MASTER, &ifindex, sizeof(ifindex));
}
if (macsize)
netlink_attr(nlmsg, IFLA_ADDRESS, mac, macsize);
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static int netlink_add_addr(struct nlmsg* nlmsg, int sock, const char* dev,
const void* addr, int addrsize)
{
struct ifaddrmsg hdr;
memset(&hdr, 0, sizeof(hdr));
hdr.ifa_family = addrsize == 4 ? AF_INET : AF_INET6;
hdr.ifa_prefixlen = addrsize == 4 ? 24 : 120;
hdr.ifa_scope = RT_SCOPE_UNIVERSE;
hdr.ifa_index = if_nametoindex(dev);
netlink_init(nlmsg, RTM_NEWADDR, NLM_F_CREATE | NLM_F_REPLACE, &hdr,
sizeof(hdr));
netlink_attr(nlmsg, IFA_LOCAL, addr, addrsize);
netlink_attr(nlmsg, IFA_ADDRESS, addr, addrsize);
return netlink_send(nlmsg, sock);
}
static void netlink_add_addr4(struct nlmsg* nlmsg, int sock, const char* dev,
const char* addr)
{
struct in_addr in_addr;
inet_pton(AF_INET, addr, &in_addr);
int err = netlink_add_addr(nlmsg, sock, dev, &in_addr, sizeof(in_addr));
if (err < 0) {
}
}
static void netlink_add_addr6(struct nlmsg* nlmsg, int sock, const char* dev,
const char* addr)
{
struct in6_addr in6_addr;
inet_pton(AF_INET6, addr, &in6_addr);
int err = netlink_add_addr(nlmsg, sock, dev, &in6_addr, sizeof(in6_addr));
if (err < 0) {
}
}
static void netlink_add_neigh(struct nlmsg* nlmsg, int sock, const char* name,
const void* addr, int addrsize, const void* mac,
int macsize)
{
struct ndmsg hdr;
memset(&hdr, 0, sizeof(hdr));
hdr.ndm_family = addrsize == 4 ? AF_INET : AF_INET6;
hdr.ndm_ifindex = if_nametoindex(name);
hdr.ndm_state = NUD_PERMANENT;
netlink_init(nlmsg, RTM_NEWNEIGH, NLM_F_EXCL | NLM_F_CREATE, &hdr,
sizeof(hdr));
netlink_attr(nlmsg, NDA_DST, addr, addrsize);
netlink_attr(nlmsg, NDA_LLADDR, mac, macsize);
int err = netlink_send(nlmsg, sock);
if (err < 0) {
}
}
static struct nlmsg nlmsg;
static int tunfd = -1;
#define TUN_IFACE "syz_tun"
#define LOCAL_MAC 0xaaaaaaaaaaaa
#define REMOTE_MAC 0xaaaaaaaaaabb
#define LOCAL_IPV4 "172.20.20.170"
#define REMOTE_IPV4 "172.20.20.187"
#define LOCAL_IPV6 "fe80::aa"
#define REMOTE_IPV6 "fe80::bb"
#define IFF_NAPI 0x0010
static void initialize_tun(void)
{
tunfd = open("/dev/net/tun", O_RDWR | O_NONBLOCK);
if (tunfd == -1) {
printf("tun: can't open /dev/net/tun: please enable CONFIG_TUN=y\n");
printf("otherwise fuzzing or reproducing might not work as intended\n");
return;
}
const int kTunFd = 240;
if (dup2(tunfd, kTunFd) < 0)
exit(1);
close(tunfd);
tunfd = kTunFd;
struct ifreq ifr;
memset(&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, TUN_IFACE, IFNAMSIZ);
ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
if (ioctl(tunfd, TUNSETIFF, (void*)&ifr) < 0) {
exit(1);
}
char sysctl[64];
sprintf(sysctl, "/proc/sys/net/ipv6/conf/%s/accept_dad", TUN_IFACE);
write_file(sysctl, "0");
sprintf(sysctl, "/proc/sys/net/ipv6/conf/%s/router_solicitations", TUN_IFACE);
write_file(sysctl, "0");
int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (sock == -1)
exit(1);
netlink_add_addr4(&nlmsg, sock, TUN_IFACE, LOCAL_IPV4);
netlink_add_addr6(&nlmsg, sock, TUN_IFACE, LOCAL_IPV6);
uint64_t macaddr = REMOTE_MAC;
struct in_addr in_addr;
inet_pton(AF_INET, REMOTE_IPV4, &in_addr);
netlink_add_neigh(&nlmsg, sock, TUN_IFACE, &in_addr, sizeof(in_addr),
&macaddr, ETH_ALEN);
struct in6_addr in6_addr;
inet_pton(AF_INET6, REMOTE_IPV6, &in6_addr);
netlink_add_neigh(&nlmsg, sock, TUN_IFACE, &in6_addr, sizeof(in6_addr),
&macaddr, ETH_ALEN);
macaddr = LOCAL_MAC;
netlink_device_change(&nlmsg, sock, TUN_IFACE, true, 0, &macaddr, ETH_ALEN,
NULL);
close(sock);
}
#define DEVLINK_FAMILY_NAME "devlink"
#define DEVLINK_CMD_PORT_GET 5
#define DEVLINK_ATTR_BUS_NAME 1
#define DEVLINK_ATTR_DEV_NAME 2
#define DEVLINK_ATTR_NETDEV_NAME 7
static struct nlmsg nlmsg2;
static void initialize_devlink_ports(const char* bus_name, const char* dev_name,
const char* netdev_prefix)
{
struct genlmsghdr genlhdr;
int len, total_len, id, err, offset;
uint16_t netdev_index;
int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
if (sock == -1)
exit(1);
int rtsock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (rtsock == -1)
exit(1);
id = netlink_query_family_id(&nlmsg, sock, DEVLINK_FAMILY_NAME, true);
if (id == -1)
goto error;
memset(&genlhdr, 0, sizeof(genlhdr));
genlhdr.cmd = DEVLINK_CMD_PORT_GET;
netlink_init(&nlmsg, id, NLM_F_DUMP, &genlhdr, sizeof(genlhdr));
netlink_attr(&nlmsg, DEVLINK_ATTR_BUS_NAME, bus_name, strlen(bus_name) + 1);
netlink_attr(&nlmsg, DEVLINK_ATTR_DEV_NAME, dev_name, strlen(dev_name) + 1);
err = netlink_send_ext(&nlmsg, sock, id, &total_len, true);
if (err < 0) {
goto error;
}
offset = 0;
netdev_index = 0;
while ((len = netlink_next_msg(&nlmsg, offset, total_len)) != -1) {
struct nlattr* attr = (struct nlattr*)(nlmsg.buf + offset + NLMSG_HDRLEN +
NLMSG_ALIGN(sizeof(genlhdr)));
for (; (char*)attr < nlmsg.buf + offset + len;
attr = (struct nlattr*)((char*)attr + NLMSG_ALIGN(attr->nla_len))) {
if (attr->nla_type == DEVLINK_ATTR_NETDEV_NAME) {
char* port_name;
char netdev_name[IFNAMSIZ];
port_name = (char*)(attr + 1);
snprintf(netdev_name, sizeof(netdev_name), "%s%d", netdev_prefix,
netdev_index);
netlink_device_change(&nlmsg2, rtsock, port_name, true, 0, 0, 0,
netdev_name);
break;
}
}
offset += len;
netdev_index++;
}
error:
close(rtsock);
close(sock);
}
#define DEV_IPV4 "172.20.20.%d"
#define DEV_IPV6 "fe80::%02x"
#define DEV_MAC 0x00aaaaaaaaaa
static void netdevsim_add(unsigned int addr, unsigned int port_count)
{
char buf[16];
sprintf(buf, "%u %u", addr, port_count);
if (write_file("/sys/bus/netdevsim/new_device", buf)) {
snprintf(buf, sizeof(buf), "netdevsim%d", addr);
initialize_devlink_ports("netdevsim", buf, "netdevsim");
}
}
#define WG_GENL_NAME "wireguard"
enum wg_cmd {
WG_CMD_GET_DEVICE,
WG_CMD_SET_DEVICE,
};
enum wgdevice_attribute {
WGDEVICE_A_UNSPEC,
WGDEVICE_A_IFINDEX,
WGDEVICE_A_IFNAME,
WGDEVICE_A_PRIVATE_KEY,
WGDEVICE_A_PUBLIC_KEY,
WGDEVICE_A_FLAGS,
WGDEVICE_A_LISTEN_PORT,
WGDEVICE_A_FWMARK,
WGDEVICE_A_PEERS,
};
enum wgpeer_attribute {
WGPEER_A_UNSPEC,
WGPEER_A_PUBLIC_KEY,
WGPEER_A_PRESHARED_KEY,
WGPEER_A_FLAGS,
WGPEER_A_ENDPOINT,
WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
WGPEER_A_LAST_HANDSHAKE_TIME,
WGPEER_A_RX_BYTES,
WGPEER_A_TX_BYTES,
WGPEER_A_ALLOWEDIPS,
WGPEER_A_PROTOCOL_VERSION,
};
enum wgallowedip_attribute {
WGALLOWEDIP_A_UNSPEC,
WGALLOWEDIP_A_FAMILY,
WGALLOWEDIP_A_IPADDR,
WGALLOWEDIP_A_CIDR_MASK,
};
static void netlink_wireguard_setup(void)
{
const char ifname_a[] = "wg0";
const char ifname_b[] = "wg1";
const char ifname_c[] = "wg2";
const char private_a[] =
"\xa0\x5c\xa8\x4f\x6c\x9c\x8e\x38\x53\xe2\xfd\x7a\x70\xae\x0f\xb2\x0f\xa1"
"\x52\x60\x0c\xb0\x08\x45\x17\x4f\x08\x07\x6f\x8d\x78\x43";
const char private_b[] =
"\xb0\x80\x73\xe8\xd4\x4e\x91\xe3\xda\x92\x2c\x22\x43\x82\x44\xbb\x88\x5c"
"\x69\xe2\x69\xc8\xe9\xd8\x35\xb1\x14\x29\x3a\x4d\xdc\x6e";
const char private_c[] =
"\xa0\xcb\x87\x9a\x47\xf5\xbc\x64\x4c\x0e\x69\x3f\xa6\xd0\x31\xc7\x4a\x15"
"\x53\xb6\xe9\x01\xb9\xff\x2f\x51\x8c\x78\x04\x2f\xb5\x42";
const char public_a[] =
"\x97\x5c\x9d\x81\xc9\x83\xc8\x20\x9e\xe7\x81\x25\x4b\x89\x9f\x8e\xd9\x25"
"\xae\x9f\x09\x23\xc2\x3c\x62\xf5\x3c\x57\xcd\xbf\x69\x1c";
const char public_b[] =
"\xd1\x73\x28\x99\xf6\x11\xcd\x89\x94\x03\x4d\x7f\x41\x3d\xc9\x57\x63\x0e"
"\x54\x93\xc2\x85\xac\xa4\x00\x65\xcb\x63\x11\xbe\x69\x6b";
const char public_c[] =
"\xf4\x4d\xa3\x67\xa8\x8e\xe6\x56\x4f\x02\x02\x11\x45\x67\x27\x08\x2f\x5c"
"\xeb\xee\x8b\x1b\xf5\xeb\x73\x37\x34\x1b\x45\x9b\x39\x22";
const uint16_t listen_a = 20001;
const uint16_t listen_b = 20002;
const uint16_t listen_c = 20003;
const uint16_t af_inet = AF_INET;
const uint16_t af_inet6 = AF_INET6;
const struct sockaddr_in endpoint_b_v4 = {
.sin_family = AF_INET,
.sin_port = htons(listen_b),
.sin_addr = {htonl(INADDR_LOOPBACK)}};
const struct sockaddr_in endpoint_c_v4 = {
.sin_family = AF_INET,
.sin_port = htons(listen_c),
.sin_addr = {htonl(INADDR_LOOPBACK)}};
struct sockaddr_in6 endpoint_a_v6 = {.sin6_family = AF_INET6,
.sin6_port = htons(listen_a)};
endpoint_a_v6.sin6_addr = in6addr_loopback;
struct sockaddr_in6 endpoint_c_v6 = {.sin6_family = AF_INET6,
.sin6_port = htons(listen_c)};
endpoint_c_v6.sin6_addr = in6addr_loopback;
const struct in_addr first_half_v4 = {0};
const struct in_addr second_half_v4 = {(uint32_t)htonl(128 << 24)};
const struct in6_addr first_half_v6 = {{{0}}};
const struct in6_addr second_half_v6 = {{{0x80}}};
const uint8_t half_cidr = 1;
const uint16_t persistent_keepalives[] = {1, 3, 7, 9, 14, 19};
struct genlmsghdr genlhdr = {.cmd = WG_CMD_SET_DEVICE, .version = 1};
int sock;
int id, err;
sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
if (sock == -1) {
return;
}
id = netlink_query_family_id(&nlmsg, sock, WG_GENL_NAME, true);
if (id == -1)
goto error;
netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
netlink_attr(&nlmsg, WGDEVICE_A_IFNAME, ifname_a, strlen(ifname_a) + 1);
netlink_attr(&nlmsg, WGDEVICE_A_PRIVATE_KEY, private_a, 32);
netlink_attr(&nlmsg, WGDEVICE_A_LISTEN_PORT, &listen_a, 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGDEVICE_A_PEERS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_b, 32);
netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_b_v4,
sizeof(endpoint_b_v4));
netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
&persistent_keepalives[0], 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v4,
sizeof(first_half_v4));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v6,
sizeof(first_half_v6));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_c, 32);
netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_c_v6,
sizeof(endpoint_c_v6));
netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
&persistent_keepalives[1], 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v4,
sizeof(second_half_v4));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v6,
sizeof(second_half_v6));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
err = netlink_send(&nlmsg, sock);
if (err < 0) {
}
netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
netlink_attr(&nlmsg, WGDEVICE_A_IFNAME, ifname_b, strlen(ifname_b) + 1);
netlink_attr(&nlmsg, WGDEVICE_A_PRIVATE_KEY, private_b, 32);
netlink_attr(&nlmsg, WGDEVICE_A_LISTEN_PORT, &listen_b, 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGDEVICE_A_PEERS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_a, 32);
netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_a_v6,
sizeof(endpoint_a_v6));
netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
&persistent_keepalives[2], 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v4,
sizeof(first_half_v4));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v6,
sizeof(first_half_v6));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_c, 32);
netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_c_v4,
sizeof(endpoint_c_v4));
netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
&persistent_keepalives[3], 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v4,
sizeof(second_half_v4));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v6,
sizeof(second_half_v6));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
err = netlink_send(&nlmsg, sock);
if (err < 0) {
}
netlink_init(&nlmsg, id, 0, &genlhdr, sizeof(genlhdr));
netlink_attr(&nlmsg, WGDEVICE_A_IFNAME, ifname_c, strlen(ifname_c) + 1);
netlink_attr(&nlmsg, WGDEVICE_A_PRIVATE_KEY, private_c, 32);
netlink_attr(&nlmsg, WGDEVICE_A_LISTEN_PORT, &listen_c, 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGDEVICE_A_PEERS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_a, 32);
netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_a_v6,
sizeof(endpoint_a_v6));
netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
&persistent_keepalives[4], 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v4,
sizeof(first_half_v4));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &first_half_v6,
sizeof(first_half_v6));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGPEER_A_PUBLIC_KEY, public_b, 32);
netlink_attr(&nlmsg, WGPEER_A_ENDPOINT, &endpoint_b_v4,
sizeof(endpoint_b_v4));
netlink_attr(&nlmsg, WGPEER_A_PERSISTENT_KEEPALIVE_INTERVAL,
&persistent_keepalives[5], 2);
netlink_nest(&nlmsg, NLA_F_NESTED | WGPEER_A_ALLOWEDIPS);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v4,
sizeof(second_half_v4));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_nest(&nlmsg, NLA_F_NESTED | 0);
netlink_attr(&nlmsg, WGALLOWEDIP_A_FAMILY, &af_inet6, 2);
netlink_attr(&nlmsg, WGALLOWEDIP_A_IPADDR, &second_half_v6,
sizeof(second_half_v6));
netlink_attr(&nlmsg, WGALLOWEDIP_A_CIDR_MASK, &half_cidr, 1);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
netlink_done(&nlmsg);
err = netlink_send(&nlmsg, sock);
if (err < 0) {
}
error:
close(sock);
}
static void initialize_netdevices(void)
{
char netdevsim[16];
sprintf(netdevsim, "netdevsim%d", (int)procid);
struct {
const char* type;
const char* dev;
} devtypes[] = {
{"ip6gretap", "ip6gretap0"}, {"bridge", "bridge0"},
{"vcan", "vcan0"}, {"bond", "bond0"},
{"team", "team0"}, {"dummy", "dummy0"},
{"nlmon", "nlmon0"}, {"caif", "caif0"},
{"batadv", "batadv0"}, {"vxcan", "vxcan1"},
{"netdevsim", netdevsim}, {"veth", 0},
{"xfrm", "xfrm0"}, {"wireguard", "wg0"},
{"wireguard", "wg1"}, {"wireguard", "wg2"},
};
const char* devmasters[] = {"bridge", "bond", "team", "batadv"};
struct {
const char* name;
int macsize;
bool noipv6;
} devices[] = {
{"lo", ETH_ALEN},
{"sit0", 0},
{"bridge0", ETH_ALEN},
{"vcan0", 0, true},
{"tunl0", 0},
{"gre0", 0},
{"gretap0", ETH_ALEN},
{"ip_vti0", 0},
{"ip6_vti0", 0},
{"ip6tnl0", 0},
{"ip6gre0", 0},
{"ip6gretap0", ETH_ALEN},
{"erspan0", ETH_ALEN},
{"bond0", ETH_ALEN},
{"veth0", ETH_ALEN},
{"veth1", ETH_ALEN},
{"team0", ETH_ALEN},
{"veth0_to_bridge", ETH_ALEN},
{"veth1_to_bridge", ETH_ALEN},
{"veth0_to_bond", ETH_ALEN},
{"veth1_to_bond", ETH_ALEN},
{"veth0_to_team", ETH_ALEN},
{"veth1_to_team", ETH_ALEN},
{"veth0_to_hsr", ETH_ALEN},
{"veth1_to_hsr", ETH_ALEN},
{"hsr0", 0},
{"dummy0", ETH_ALEN},
{"nlmon0", 0},
{"vxcan0", 0, true},
{"vxcan1", 0, true},
{"caif0", ETH_ALEN},
{"batadv0", ETH_ALEN},
{netdevsim, ETH_ALEN},
{"xfrm0", ETH_ALEN},
{"veth0_virt_wifi", ETH_ALEN},
{"veth1_virt_wifi", ETH_ALEN},
{"virt_wifi0", ETH_ALEN},
{"veth0_vlan", ETH_ALEN},
{"veth1_vlan", ETH_ALEN},
{"vlan0", ETH_ALEN},
{"vlan1", ETH_ALEN},
{"macvlan0", ETH_ALEN},
{"macvlan1", ETH_ALEN},
{"ipvlan0", ETH_ALEN},
{"ipvlan1", ETH_ALEN},
{"veth0_macvtap", ETH_ALEN},
{"veth1_macvtap", ETH_ALEN},
{"macvtap0", ETH_ALEN},
{"macsec0", ETH_ALEN},
{"veth0_to_batadv", ETH_ALEN},
{"veth1_to_batadv", ETH_ALEN},
{"batadv_slave_0", ETH_ALEN},
{"batadv_slave_1", ETH_ALEN},
{"geneve0", ETH_ALEN},
{"geneve1", ETH_ALEN},
{"wg0", 0},
{"wg1", 0},
{"wg2", 0},
};
int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (sock == -1)
exit(1);
unsigned i;
for (i = 0; i < sizeof(devtypes) / sizeof(devtypes[0]); i++)
netlink_add_device(&nlmsg, sock, devtypes[i].type, devtypes[i].dev);
for (i = 0; i < sizeof(devmasters) / (sizeof(devmasters[0])); i++) {
char master[32], slave0[32], veth0[32], slave1[32], veth1[32];
sprintf(slave0, "%s_slave_0", devmasters[i]);
sprintf(veth0, "veth0_to_%s", devmasters[i]);
netlink_add_veth(&nlmsg, sock, slave0, veth0);
sprintf(slave1, "%s_slave_1", devmasters[i]);
sprintf(veth1, "veth1_to_%s", devmasters[i]);
netlink_add_veth(&nlmsg, sock, slave1, veth1);
sprintf(master, "%s0", devmasters[i]);
netlink_device_change(&nlmsg, sock, slave0, false, master, 0, 0, NULL);
netlink_device_change(&nlmsg, sock, slave1, false, master, 0, 0, NULL);
}
netlink_device_change(&nlmsg, sock, "bridge_slave_0", true, 0, 0, 0, NULL);
netlink_device_change(&nlmsg, sock, "bridge_slave_1", true, 0, 0, 0, NULL);
netlink_add_veth(&nlmsg, sock, "hsr_slave_0", "veth0_to_hsr");
netlink_add_veth(&nlmsg, sock, "hsr_slave_1", "veth1_to_hsr");
netlink_add_hsr(&nlmsg, sock, "hsr0", "hsr_slave_0", "hsr_slave_1");
netlink_device_change(&nlmsg, sock, "hsr_slave_0", true, 0, 0, 0, NULL);
netlink_device_change(&nlmsg, sock, "hsr_slave_1", true, 0, 0, 0, NULL);
netlink_add_veth(&nlmsg, sock, "veth0_virt_wifi", "veth1_virt_wifi");
netlink_add_linked(&nlmsg, sock, "virt_wifi", "virt_wifi0",
"veth1_virt_wifi");
netlink_add_veth(&nlmsg, sock, "veth0_vlan", "veth1_vlan");
netlink_add_vlan(&nlmsg, sock, "vlan0", "veth0_vlan", 0, htons(ETH_P_8021Q));
netlink_add_vlan(&nlmsg, sock, "vlan1", "veth0_vlan", 1, htons(ETH_P_8021AD));
netlink_add_macvlan(&nlmsg, sock, "macvlan0", "veth1_vlan");
netlink_add_macvlan(&nlmsg, sock, "macvlan1", "veth1_vlan");
netlink_add_ipvlan(&nlmsg, sock, "ipvlan0", "veth0_vlan", IPVLAN_MODE_L2, 0);
netlink_add_ipvlan(&nlmsg, sock, "ipvlan1", "veth0_vlan", IPVLAN_MODE_L3S,
IPVLAN_F_VEPA);
netlink_add_veth(&nlmsg, sock, "veth0_macvtap", "veth1_macvtap");
netlink_add_linked(&nlmsg, sock, "macvtap", "macvtap0", "veth0_macvtap");
netlink_add_linked(&nlmsg, sock, "macsec", "macsec0", "veth1_macvtap");
char addr[32];
sprintf(addr, DEV_IPV4, 14 + 10);
struct in_addr geneve_addr4;
if (inet_pton(AF_INET, addr, &geneve_addr4) <= 0)
exit(1);
struct in6_addr geneve_addr6;
if (inet_pton(AF_INET6, "fc00::01", &geneve_addr6) <= 0)
exit(1);
netlink_add_geneve(&nlmsg, sock, "geneve0", 0, &geneve_addr4, 0);
netlink_add_geneve(&nlmsg, sock, "geneve1", 1, 0, &geneve_addr6);
netdevsim_add((int)procid, 4);
netlink_wireguard_setup();
for (i = 0; i < sizeof(devices) / (sizeof(devices[0])); i++) {
char addr[32];
sprintf(addr, DEV_IPV4, i + 10);
netlink_add_addr4(&nlmsg, sock, devices[i].name, addr);
if (!devices[i].noipv6) {
sprintf(addr, DEV_IPV6, i + 10);
netlink_add_addr6(&nlmsg, sock, devices[i].name, addr);
}
uint64_t macaddr = DEV_MAC + ((i + 10ull) << 40);
netlink_device_change(&nlmsg, sock, devices[i].name, true, 0, &macaddr,
devices[i].macsize, NULL);
}
close(sock);
}
static void initialize_netdevices_init(void)
{
int sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
if (sock == -1)
exit(1);
struct {
const char* type;
int macsize;
bool noipv6;
bool noup;
} devtypes[] = {
{"nr", 7, true},
{"rose", 5, true, true},
};
unsigned i;
for (i = 0; i < sizeof(devtypes) / sizeof(devtypes[0]); i++) {
char dev[32], addr[32];
sprintf(dev, "%s%d", devtypes[i].type, (int)procid);
sprintf(addr, "172.30.%d.%d", i, (int)procid + 1);
netlink_add_addr4(&nlmsg, sock, dev, addr);
if (!devtypes[i].noipv6) {
sprintf(addr, "fe88::%02x:%02x", i, (int)procid + 1);
netlink_add_addr6(&nlmsg, sock, dev, addr);
}
int macsize = devtypes[i].macsize;
uint64_t macaddr = 0xbbbbbb +
((unsigned long long)i << (8 * (macsize - 2))) +
(procid << (8 * (macsize - 1)));
netlink_device_change(&nlmsg, sock, dev, !devtypes[i].noup, 0, &macaddr,
macsize, NULL);
}
close(sock);
}
static int read_tun(char* data, int size)
{
if (tunfd < 0)
return -1;
int rv = read(tunfd, data, size);
if (rv < 0) {
if (errno == EAGAIN || errno == EBADFD)
return -1;
exit(1);
}
return rv;
}
static void flush_tun()
{
char data[1000];
while (read_tun(&data[0], sizeof(data)) != -1) {
}
}
#define MAX_FDS 30
#define XT_TABLE_SIZE 1536
#define XT_MAX_ENTRIES 10
struct xt_counters {
uint64_t pcnt, bcnt;
};
struct ipt_getinfo {
char name[32];
unsigned int valid_hooks;
unsigned int hook_entry[5];
unsigned int underflow[5];
unsigned int num_entries;
unsigned int size;
};
struct ipt_get_entries {
char name[32];
unsigned int size;
uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)];
};
struct ipt_replace {
char name[32];
unsigned int valid_hooks;
unsigned int num_entries;
unsigned int size;
unsigned int hook_entry[5];
unsigned int underflow[5];
unsigned int num_counters;
struct xt_counters* counters;
uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)];
};
struct ipt_table_desc {
const char* name;
struct ipt_getinfo info;
struct ipt_replace replace;
};
static struct ipt_table_desc ipv4_tables[] = {
{.name = "filter"}, {.name = "nat"}, {.name = "mangle"},
{.name = "raw"}, {.name = "security"},
};
static struct ipt_table_desc ipv6_tables[] = {
{.name = "filter"}, {.name = "nat"}, {.name = "mangle"},
{.name = "raw"}, {.name = "security"},
};
#define IPT_BASE_CTL 64
#define IPT_SO_SET_REPLACE (IPT_BASE_CTL)
#define IPT_SO_GET_INFO (IPT_BASE_CTL)
#define IPT_SO_GET_ENTRIES (IPT_BASE_CTL + 1)
struct arpt_getinfo {
char name[32];
unsigned int valid_hooks;
unsigned int hook_entry[3];
unsigned int underflow[3];
unsigned int num_entries;
unsigned int size;
};
struct arpt_get_entries {
char name[32];
unsigned int size;
uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)];
};
struct arpt_replace {
char name[32];
unsigned int valid_hooks;
unsigned int num_entries;
unsigned int size;
unsigned int hook_entry[3];
unsigned int underflow[3];
unsigned int num_counters;
struct xt_counters* counters;
uint64_t entrytable[XT_TABLE_SIZE / sizeof(uint64_t)];
};
struct arpt_table_desc {
const char* name;
struct arpt_getinfo info;
struct arpt_replace replace;
};
static struct arpt_table_desc arpt_tables[] = {
{.name = "filter"},
};
#define ARPT_BASE_CTL 96
#define ARPT_SO_SET_REPLACE (ARPT_BASE_CTL)
#define ARPT_SO_GET_INFO (ARPT_BASE_CTL)
#define ARPT_SO_GET_ENTRIES (ARPT_BASE_CTL + 1)
static void checkpoint_iptables(struct ipt_table_desc* tables, int num_tables,
int family, int level)
{
int fd = socket(family, SOCK_STREAM, IPPROTO_TCP);
if (fd == -1) {
switch (errno) {
case EAFNOSUPPORT:
case ENOPROTOOPT:
return;
}
exit(1);
}
for (int i = 0; i < num_tables; i++) {
struct ipt_table_desc* table = &tables[i];
strcpy(table->info.name, table->name);
strcpy(table->replace.name, table->name);
socklen_t optlen = sizeof(table->info);
if (getsockopt(fd, level, IPT_SO_GET_INFO, &table->info, &optlen)) {
switch (errno) {
case EPERM:
case ENOENT:
case ENOPROTOOPT:
continue;
}
exit(1);
}
if (table->info.size > sizeof(table->replace.entrytable))
exit(1);
if (table->info.num_entries > XT_MAX_ENTRIES)
exit(1);
struct ipt_get_entries entries;
memset(&entries, 0, sizeof(entries));
strcpy(entries.name, table->name);
entries.size = table->info.size;
optlen = sizeof(entries) - sizeof(entries.entrytable) + table->info.size;
if (getsockopt(fd, level, IPT_SO_GET_ENTRIES, &entries, &optlen))
exit(1);
table->replace.valid_hooks = table->info.valid_hooks;
table->replace.num_entries = table->info.num_entries;
table->replace.size = table->info.size;
memcpy(table->replace.hook_entry, table->info.hook_entry,
sizeof(table->replace.hook_entry));
memcpy(table->replace.underflow, table->info.underflow,
sizeof(table->replace.underflow));
memcpy(table->replace.entrytable, entries.entrytable, table->info.size);
}
close(fd);
}
static void reset_iptables(struct ipt_table_desc* tables, int num_tables,
int family, int level)
{
int fd = socket(family, SOCK_STREAM, IPPROTO_TCP);
if (fd == -1) {
switch (errno) {
case EAFNOSUPPORT:
case ENOPROTOOPT:
return;
}
exit(1);
}
for (int i = 0; i < num_tables; i++) {
struct ipt_table_desc* table = &tables[i];
if (table->info.valid_hooks == 0)
continue;
struct ipt_getinfo info;
memset(&info, 0, sizeof(info));
strcpy(info.name, table->name);
socklen_t optlen = sizeof(info);
if (getsockopt(fd, level, IPT_SO_GET_INFO, &info, &optlen))
exit(1);
if (memcmp(&table->info, &info, sizeof(table->info)) == 0) {
struct ipt_get_entries entries;
memset(&entries, 0, sizeof(entries));
strcpy(entries.name, table->name);
entries.size = table->info.size;
optlen = sizeof(entries) - sizeof(entries.entrytable) + entries.size;
if (getsockopt(fd, level, IPT_SO_GET_ENTRIES, &entries, &optlen))
exit(1);
if (memcmp(table->replace.entrytable, entries.entrytable,
table->info.size) == 0)
continue;
}
struct xt_counters counters[XT_MAX_ENTRIES];
table->replace.num_counters = info.num_entries;
table->replace.counters = counters;
optlen = sizeof(table->replace) - sizeof(table->replace.entrytable) +
table->replace.size;
if (setsockopt(fd, level, IPT_SO_SET_REPLACE, &table->replace, optlen))
exit(1);
}
close(fd);
}
static void checkpoint_arptables(void)
{
int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (fd == -1) {
switch (errno) {
case EAFNOSUPPORT:
case ENOPROTOOPT:
return;
}
exit(1);
}
for (unsigned i = 0; i < sizeof(arpt_tables) / sizeof(arpt_tables[0]); i++) {
struct arpt_table_desc* table = &arpt_tables[i];
strcpy(table->info.name, table->name);
strcpy(table->replace.name, table->name);
socklen_t optlen = sizeof(table->info);
if (getsockopt(fd, SOL_IP, ARPT_SO_GET_INFO, &table->info, &optlen)) {
switch (errno) {
case EPERM:
case ENOENT:
case ENOPROTOOPT:
continue;
}
exit(1);
}
if (table->info.size > sizeof(table->replace.entrytable))
exit(1);
if (table->info.num_entries > XT_MAX_ENTRIES)
exit(1);
struct arpt_get_entries entries;
memset(&entries, 0, sizeof(entries));
strcpy(entries.name, table->name);
entries.size = table->info.size;
optlen = sizeof(entries) - sizeof(entries.entrytable) + table->info.size;
if (getsockopt(fd, SOL_IP, ARPT_SO_GET_ENTRIES, &entries, &optlen))
exit(1);
table->replace.valid_hooks = table->info.valid_hooks;
table->replace.num_entries = table->info.num_entries;
table->replace.size = table->info.size;
memcpy(table->replace.hook_entry, table->info.hook_entry,
sizeof(table->replace.hook_entry));
memcpy(table->replace.underflow, table->info.underflow,
sizeof(table->replace.underflow));
memcpy(table->replace.entrytable, entries.entrytable, table->info.size);
}
close(fd);
}
static void reset_arptables()
{
int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (fd == -1) {
switch (errno) {
case EAFNOSUPPORT:
case ENOPROTOOPT:
return;
}
exit(1);
}
for (unsigned i = 0; i < sizeof(arpt_tables) / sizeof(arpt_tables[0]); i++) {
struct arpt_table_desc* table = &arpt_tables[i];
if (table->info.valid_hooks == 0)
continue;
struct arpt_getinfo info;
memset(&info, 0, sizeof(info));
strcpy(info.name, table->name);
socklen_t optlen = sizeof(info);
if (getsockopt(fd, SOL_IP, ARPT_SO_GET_INFO, &info, &optlen))
exit(1);
if (memcmp(&table->info, &info, sizeof(table->info)) == 0) {
struct arpt_get_entries entries;
memset(&entries, 0, sizeof(entries));
strcpy(entries.name, table->name);
entries.size = table->info.size;
optlen = sizeof(entries) - sizeof(entries.entrytable) + entries.size;
if (getsockopt(fd, SOL_IP, ARPT_SO_GET_ENTRIES, &entries, &optlen))
exit(1);
if (memcmp(table->replace.entrytable, entries.entrytable,
table->info.size) == 0)
continue;
} else {
}
struct xt_counters counters[XT_MAX_ENTRIES];
table->replace.num_counters = info.num_entries;
table->replace.counters = counters;
optlen = sizeof(table->replace) - sizeof(table->replace.entrytable) +
table->replace.size;
if (setsockopt(fd, SOL_IP, ARPT_SO_SET_REPLACE, &table->replace, optlen))
exit(1);
}
close(fd);
}
#define NF_BR_NUMHOOKS 6
#define EBT_TABLE_MAXNAMELEN 32
#define EBT_CHAIN_MAXNAMELEN 32
#define EBT_BASE_CTL 128
#define EBT_SO_SET_ENTRIES (EBT_BASE_CTL)
#define EBT_SO_GET_INFO (EBT_BASE_CTL)
#define EBT_SO_GET_ENTRIES (EBT_SO_GET_INFO + 1)
#define EBT_SO_GET_INIT_INFO (EBT_SO_GET_ENTRIES + 1)
#define EBT_SO_GET_INIT_ENTRIES (EBT_SO_GET_INIT_INFO + 1)
struct ebt_replace {
char name[EBT_TABLE_MAXNAMELEN];
unsigned int valid_hooks;
unsigned int nentries;
unsigned int entries_size;
struct ebt_entries* hook_entry[NF_BR_NUMHOOKS];
unsigned int num_counters;
struct ebt_counter* counters;
char* entries;
};
struct ebt_entries {
unsigned int distinguisher;
char name[EBT_CHAIN_MAXNAMELEN];
unsigned int counter_offset;
int policy;
unsigned int nentries;
char data[0] __attribute__((aligned(__alignof__(struct ebt_replace))));
};
struct ebt_table_desc {
const char* name;
struct ebt_replace replace;
char entrytable[XT_TABLE_SIZE];
};
static struct ebt_table_desc ebt_tables[] = {
{.name = "filter"},
{.name = "nat"},
{.name = "broute"},
};
static void checkpoint_ebtables(void)
{
int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (fd == -1) {
switch (errno) {
case EAFNOSUPPORT:
case ENOPROTOOPT:
return;
}
exit(1);
}
for (size_t i = 0; i < sizeof(ebt_tables) / sizeof(ebt_tables[0]); i++) {
struct ebt_table_desc* table = &ebt_tables[i];
strcpy(table->replace.name, table->name);
socklen_t optlen = sizeof(table->replace);
if (getsockopt(fd, SOL_IP, EBT_SO_GET_INIT_INFO, &table->replace,
&optlen)) {
switch (errno) {
case EPERM:
case ENOENT:
case ENOPROTOOPT:
continue;
}
exit(1);
}
if (table->replace.entries_size > sizeof(table->entrytable))
exit(1);
table->replace.num_counters = 0;
table->replace.entries = table->entrytable;
optlen = sizeof(table->replace) + table->replace.entries_size;
if (getsockopt(fd, SOL_IP, EBT_SO_GET_INIT_ENTRIES, &table->replace,
&optlen))
exit(1);
}
close(fd);
}
static void reset_ebtables()
{
int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (fd == -1) {
switch (errno) {
case EAFNOSUPPORT:
case ENOPROTOOPT:
return;
}
exit(1);
}
for (unsigned i = 0; i < sizeof(ebt_tables) / sizeof(ebt_tables[0]); i++) {
struct ebt_table_desc* table = &ebt_tables[i];
if (table->replace.valid_hooks == 0)
continue;
struct ebt_replace replace;
memset(&replace, 0, sizeof(replace));
strcpy(replace.name, table->name);
socklen_t optlen = sizeof(replace);
if (getsockopt(fd, SOL_IP, EBT_SO_GET_INFO, &replace, &optlen))
exit(1);
replace.num_counters = 0;
table->replace.entries = 0;
for (unsigned h = 0; h < NF_BR_NUMHOOKS; h++)
table->replace.hook_entry[h] = 0;
if (memcmp(&table->replace, &replace, sizeof(table->replace)) == 0) {
char entrytable[XT_TABLE_SIZE];
memset(&entrytable, 0, sizeof(entrytable));
replace.entries = entrytable;
optlen = sizeof(replace) + replace.entries_size;
if (getsockopt(fd, SOL_IP, EBT_SO_GET_ENTRIES, &replace, &optlen))
exit(1);
if (memcmp(table->entrytable, entrytable, replace.entries_size) == 0)
continue;
}
for (unsigned j = 0, h = 0; h < NF_BR_NUMHOOKS; h++) {
if (table->replace.valid_hooks & (1 << h)) {
table->replace.hook_entry[h] =
(struct ebt_entries*)table->entrytable + j;
j++;
}
}
table->replace.entries = table->entrytable;
optlen = sizeof(table->replace) + table->replace.entries_size;
if (setsockopt(fd, SOL_IP, EBT_SO_SET_ENTRIES, &table->replace, optlen))
exit(1);
}
close(fd);
}
static void checkpoint_net_namespace(void)
{
checkpoint_ebtables();
checkpoint_arptables();
checkpoint_iptables(ipv4_tables, sizeof(ipv4_tables) / sizeof(ipv4_tables[0]),
AF_INET, SOL_IP);
checkpoint_iptables(ipv6_tables, sizeof(ipv6_tables) / sizeof(ipv6_tables[0]),
AF_INET6, SOL_IPV6);
}
static void reset_net_namespace(void)
{
reset_ebtables();
reset_arptables();
reset_iptables(ipv4_tables, sizeof(ipv4_tables) / sizeof(ipv4_tables[0]),
AF_INET, SOL_IP);
reset_iptables(ipv6_tables, sizeof(ipv6_tables) / sizeof(ipv6_tables[0]),
AF_INET6, SOL_IPV6);
}
static void setup_cgroups()
{
if (mkdir("/syzcgroup", 0777)) {
}
if (mkdir("/syzcgroup/unified", 0777)) {
}
if (mount("none", "/syzcgroup/unified", "cgroup2", 0, NULL)) {
}
if (chmod("/syzcgroup/unified", 0777)) {
}
write_file("/syzcgroup/unified/cgroup.subtree_control",
"+cpu +memory +io +pids +rdma");
if (mkdir("/syzcgroup/cpu", 0777)) {
}
if (mount("none", "/syzcgroup/cpu", "cgroup", 0,
"cpuset,cpuacct,perf_event,hugetlb")) {
}
write_file("/syzcgroup/cpu/cgroup.clone_children", "1");
write_file("/syzcgroup/cpu/cpuset.memory_pressure_enabled", "1");
if (chmod("/syzcgroup/cpu", 0777)) {
}
if (mkdir("/syzcgroup/net", 0777)) {
}
if (mount("none", "/syzcgroup/net", "cgroup", 0,
"net_cls,net_prio,devices,freezer")) {
}
if (chmod("/syzcgroup/net", 0777)) {
}
}
static void setup_cgroups_loop()
{
int pid = getpid();
char file[128];
char cgroupdir[64];
snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/unified/syz%llu", procid);
if (mkdir(cgroupdir, 0777)) {
}
snprintf(file, sizeof(file), "%s/pids.max", cgroupdir);
write_file(file, "32");
snprintf(file, sizeof(file), "%s/memory.low", cgroupdir);
write_file(file, "%d", 298 << 20);
snprintf(file, sizeof(file), "%s/memory.high", cgroupdir);
write_file(file, "%d", 299 << 20);
snprintf(file, sizeof(file), "%s/memory.max", cgroupdir);
write_file(file, "%d", 300 << 20);
snprintf(file, sizeof(file), "%s/cgroup.procs", cgroupdir);
write_file(file, "%d", pid);
snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/cpu/syz%llu", procid);
if (mkdir(cgroupdir, 0777)) {
}
snprintf(file, sizeof(file), "%s/cgroup.procs", cgroupdir);
write_file(file, "%d", pid);
snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/net/syz%llu", procid);
if (mkdir(cgroupdir, 0777)) {
}
snprintf(file, sizeof(file), "%s/cgroup.procs", cgroupdir);
write_file(file, "%d", pid);
}
static void setup_cgroups_test()
{
char cgroupdir[64];
snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/unified/syz%llu", procid);
if (symlink(cgroupdir, "./cgroup")) {
}
snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/cpu/syz%llu", procid);
if (symlink(cgroupdir, "./cgroup.cpu")) {
}
snprintf(cgroupdir, sizeof(cgroupdir), "/syzcgroup/net/syz%llu", procid);
if (symlink(cgroupdir, "./cgroup.net")) {
}
}
static void setup_common()
{
if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) {
}
setup_cgroups();
}
static void loop();
static void sandbox_common()
{
prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
setsid();
struct rlimit rlim;
rlim.rlim_cur = rlim.rlim_max = (200 << 20);
setrlimit(RLIMIT_AS, &rlim);
rlim.rlim_cur = rlim.rlim_max = 32 << 20;
setrlimit(RLIMIT_MEMLOCK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 136 << 20;
setrlimit(RLIMIT_FSIZE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 1 << 20;
setrlimit(RLIMIT_STACK, &rlim);
rlim.rlim_cur = rlim.rlim_max = 0;
setrlimit(RLIMIT_CORE, &rlim);
rlim.rlim_cur = rlim.rlim_max = 256;
setrlimit(RLIMIT_NOFILE, &rlim);
if (unshare(CLONE_NEWNS)) {
}
if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, NULL)) {
}
if (unshare(CLONE_NEWIPC)) {
}
if (unshare(0x02000000)) {
}
if (unshare(CLONE_NEWUTS)) {
}
if (unshare(CLONE_SYSVSEM)) {
}
typedef struct {
const char* name;
const char* value;
} sysctl_t;
static const sysctl_t sysctls[] = {
{"/proc/sys/kernel/shmmax", "16777216"},
{"/proc/sys/kernel/shmall", "536870912"},
{"/proc/sys/kernel/shmmni", "1024"},
{"/proc/sys/kernel/msgmax", "8192"},
{"/proc/sys/kernel/msgmni", "1024"},
{"/proc/sys/kernel/msgmnb", "1024"},
{"/proc/sys/kernel/sem", "1024 1048576 500 1024"},
};
unsigned i;
for (i = 0; i < sizeof(sysctls) / sizeof(sysctls[0]); i++)
write_file(sysctls[i].name, sysctls[i].value);
}
static int wait_for_loop(int pid)
{
if (pid < 0)
exit(1);
int status = 0;
while (waitpid(-1, &status, __WALL) != pid) {
}
return WEXITSTATUS(status);
}
static void drop_caps(void)
{
struct __user_cap_header_struct cap_hdr = {};
struct __user_cap_data_struct cap_data[2] = {};
cap_hdr.version = _LINUX_CAPABILITY_VERSION_3;
cap_hdr.pid = getpid();
if (syscall(SYS_capget, &cap_hdr, &cap_data))
exit(1);
const int drop = (1 << CAP_SYS_PTRACE) | (1 << CAP_SYS_NICE);
cap_data[0].effective &= ~drop;
cap_data[0].permitted &= ~drop;
cap_data[0].inheritable &= ~drop;
if (syscall(SYS_capset, &cap_hdr, &cap_data))
exit(1);
}
static int do_sandbox_none(void)
{
if (unshare(CLONE_NEWPID)) {
}
int pid = fork();
if (pid != 0)
return wait_for_loop(pid);
setup_common();
sandbox_common();
drop_caps();
initialize_netdevices_init();
if (unshare(CLONE_NEWNET)) {
}
initialize_tun();
initialize_netdevices();
loop();
exit(1);
}
#define FS_IOC_SETFLAGS _IOW('f', 2, long)
static void remove_dir(const char* dir)
{
int iter = 0;
DIR* dp = 0;
retry:
while (umount2(dir, MNT_DETACH) == 0) {
}
dp = opendir(dir);
if (dp == NULL) {
if (errno == EMFILE) {
exit(1);
}
exit(1);
}
struct dirent* ep = 0;
while ((ep = readdir(dp))) {
if (strcmp(ep->d_name, ".") == 0 || strcmp(ep->d_name, "..") == 0)
continue;
char filename[FILENAME_MAX];
snprintf(filename, sizeof(filename), "%s/%s", dir, ep->d_name);
while (umount2(filename, MNT_DETACH) == 0) {
}
struct stat st;
if (lstat(filename, &st))
exit(1);
if (S_ISDIR(st.st_mode)) {
remove_dir(filename);
continue;
}
int i;
for (i = 0;; i++) {
if (unlink(filename) == 0)
break;
if (errno == EPERM) {
int fd = open(filename, O_RDONLY);
if (fd != -1) {
long flags = 0;
if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
}
close(fd);
continue;
}
}
if (errno == EROFS) {
break;
}
if (errno != EBUSY || i > 100)
exit(1);
if (umount2(filename, MNT_DETACH))
exit(1);
}
}
closedir(dp);
for (int i = 0;; i++) {
if (rmdir(dir) == 0)
break;
if (i < 100) {
if (errno == EPERM) {
int fd = open(dir, O_RDONLY);
if (fd != -1) {
long flags = 0;
if (ioctl(fd, FS_IOC_SETFLAGS, &flags) == 0) {
}
close(fd);
continue;
}
}
if (errno == EROFS) {
break;
}
if (errno == EBUSY) {
if (umount2(dir, MNT_DETACH))
exit(1);
continue;
}
if (errno == ENOTEMPTY) {
if (iter < 100) {
iter++;
goto retry;
}
}
}
exit(1);
}
}
static void kill_and_wait(int pid, int* status)
{
kill(-pid, SIGKILL);
kill(pid, SIGKILL);
for (int i = 0; i < 100; i++) {
if (waitpid(-1, status, WNOHANG | __WALL) == pid)
return;
usleep(1000);
}
DIR* dir = opendir("/sys/fs/fuse/connections");
if (dir) {
for (;;) {
struct dirent* ent = readdir(dir);
if (!ent)
break;
if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
continue;
char abort[300];
snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
ent->d_name);
int fd = open(abort, O_WRONLY);
if (fd == -1) {
continue;
}
if (write(fd, abort, 1) < 0) {
}
close(fd);
}
closedir(dir);
} else {
}
while (waitpid(-1, status, __WALL) != pid) {
}
}
static void setup_loop()
{
setup_cgroups_loop();
checkpoint_net_namespace();
}
static void reset_loop()
{
reset_net_namespace();
}
static void setup_test()
{
prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
setpgrp();
setup_cgroups_test();
write_file("/proc/self/oom_score_adj", "1000");
flush_tun();
}
static void close_fds()
{
for (int fd = 3; fd < MAX_FDS; fd++)
close(fd);
}
static void setup_binfmt_misc()
{
if (mount(0, "/proc/sys/fs/binfmt_misc", "binfmt_misc", 0, 0)) {
}
write_file("/proc/sys/fs/binfmt_misc/register", ":syz0:M:0:\x01::./file0:");
write_file("/proc/sys/fs/binfmt_misc/register",
":syz1:M:1:\x02::./file0:POC");
}
static void execute_one(void);
#define WAIT_FLAGS __WALL
static void loop(void)
{
setup_loop();
int iter = 0;
for (;; iter++) {
char cwdbuf[32];
sprintf(cwdbuf, "./%d", iter);
if (mkdir(cwdbuf, 0777))
exit(1);
reset_loop();
int pid = fork();
if (pid < 0)
exit(1);
if (pid == 0) {
if (chdir(cwdbuf))
exit(1);
setup_test();
execute_one();
close_fds();
exit(0);
}
int status = 0;
uint64_t start = current_time_ms();
for (;;) {
if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
break;
sleep_ms(1);
if (current_time_ms() - start < 5000) {
continue;
}
kill_and_wait(pid, &status);
break;
}
remove_dir(cwdbuf);
}
}
#ifndef __NR_execveat
#define __NR_execveat 322
#endif
uint64_t r[1] = {0xffffffffffffffff};
void execute_one(void)
{
intptr_t res = 0;
NONFAILING(memcpy((void*)0x200000c0, "/proc/self/exe\000", 15));
res = syscall(__NR_openat, 0xffffff9c, 0x200000c0ul, 0ul, 0ul);
if (res != -1)
r[0] = res;
NONFAILING(memset((void*)0x20000000, 0, 1));
syscall(__NR_execveat, r[0], 0x20000000ul, 0ul, 0ul, 0x1100ul);
}
int main(void)
{
syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
setup_binfmt_misc();
install_segv_handler();
use_temporary_dir();
do_sandbox_none();
return 0;
}
|
the_stack_data/153267864.c | #include<stdio.h>
#include<stdlib.h>
#include <math.h>
double num1;
double num2; //input number double precision
double ris;
double exponent; //input for ^exp
int ch; //choise of operators
int ch2; //choise for a new calculation
int main(){
printf("calculator in C. By Fabio e Pier! \n");
printf("\n");
do{
printf(":: insert the operator(1.+) (2.-) (3.*) (4./) (5.^) (6.sqrt) \n");
scanf("%d", &ch);
//switch case
switch(ch){
case 1:
sum();
break;
case 2:
sub();
break;
case 3:
prod();
break;
case 4:
divisor();
break;
case 5:
pot();
break;
case 6:
sqrtFun();
break;
default:
printf(":: insert a valid operator, try again! \n");
}
printf(":: new calculation? (1.yes) (2.no) \n");
scanf("%d", &ch2);
}while(ch2 == 1);
return 0;
}
void sum(){
printf(":: insert two number: \n");
scanf("%lf", &num1);
scanf("%lf", &num2);
ris = num1 + num2;
printf("%.2lf + %.2lf = %.2lf", num1, num2, ris);
printf("\n");
}
void sub(){
printf(":: insert two number: \n");
scanf("%lf", &num1);
scanf("%lf", &num2);
ris = num1 - num2;
printf("%.2lf - %.2lf = %.2lf", num1, num2, ris);
printf("\n");
}
void prod(){
printf(":: insert two number: \n");
scanf("%lf", &num1);
scanf("%lf", &num2);
ris = num1 * num2;
printf("%.2lf * %.2lf = %.2lf", num1, num2, ris);
printf("\n");
}
void divisor(){
printf(":: insert two number: \n");
scanf("%lf", &num1);
scanf("%lf", &num2);
ris = num1 / num2;
printf("%.2lf / %.2lf = %.2lf", num1, num2, ris);
printf("\n");
}
void pot(){
printf(":: insert the number: \n");
scanf("%lf", &num1);
printf(":: insert the number of exp: \n");
scanf("%lf", &exponent);
ris = pow(num1,exponent);
printf("%.1lf^%.1lf = %.1lf \n", num1, exponent, ris);
}
void sqrtFun(){
printf(":: insert the number: \n");
scanf("%lf", &num1);
if(num1 > 0){
ris = sqrt(num1);
printf("%.2lf = %.2lf \n", num1, ris);
}else{
printf("not a negative number! \n");
}
}
|
the_stack_data/66768.c | #include <stdio.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>
int main()
{
char s[100];
scanf("%[^\n]%*c", &s);
printf("Hello, World!");
printf("\n%s",s);
return 0;
}
|
the_stack_data/955536.c | /**/
#include <math.h>
#include <stdio.h>
int main(){
float a, b, c, d,e;
printf("Enter thresholds for A, B, C, D\nin that order, decreasing percentages >");
scanf("%f%f%f%f", &a,&b,&c,&d);
printf("Thank you. Now enter student score (percent) >");
scanf("%f",&e);
if (e>=a)
printf("Student has an A grade\n");
else if(e>=b)
printf("Student has an B grade\n");
else if (e>=c)
printf("Student has an C grade\n");
else if(e>=d)
printf("Student has an D grade\n");
else printf("Student has failed the course\n");
return 0;
}
|
the_stack_data/187644509.c | /*
* The Shadow Simulator
* Copyright (c) 2010-2011, Rob Jansen
* See LICENSE for licensing information
*/
#include <fcntl.h>
#include <assert.h>
#include <openssl/crypto.h>
#include <event2/dns.h>
/********************************************************************************
* start interposition functions
********************************************************************************/
/* tor family */
//int write_str_to_file(const char *fname, const char *str, int bin) {
// /* check if filepath is a consenus file. store it in separate files
// * so we don't lose old consenus info on overwrites. */
// if (g_str_has_suffix(fname, "cached-consensus")) {
// //if(g_strrstr(filepath, "cached-consensus") != NULL) {
// GString* newPath = g_string_new(fname);
// GError* error = NULL;
// g_string_append_printf(newPath, ".%03i", _shadowtorpreload_getWorker()->consensusCounter++);
// if (!g_file_set_contents(newPath->str, str, -1, &error)) {
// log_warn(LD_GENERAL, "Error writing file '%s' to track consensus update: error %i: %s",
// newPath->str, error->code, error->message);
// }
// g_string_free(newPath, TRUE);
// }
//
// return _shadowtorpreload_getWorker()->active->vtable.write_str_to_file(fname, str, bin);
//}
/* libevent family */
struct evdns_request* evdns_base_resolve_ipv4(struct evdns_base *base, const char *name, int flags,
evdns_callback_type callback, void *ptr) {
in_addr_t ip;
int success = 0;
if(callback) {
struct addrinfo* info = NULL;
int success = (0 == getaddrinfo(name, NULL, NULL, &info));
if (success) {
ip = ((struct sockaddr_in*) (info->ai_addr))->sin_addr.s_addr;
}
freeaddrinfo(info);
}
if(success) {
callback(DNS_ERR_NONE, DNS_IPv4_A, 1, 86400, &ip, ptr);
return (struct evdns_request *)1;
} else {
return NULL;
}
}
/* openssl family */
/* const AES_KEY *key
* The key parameter has been voided to avoid requiring Openssl headers */
void AES_encrypt(const unsigned char *in, unsigned char *out, const void *key) {
return;
}
/*
* const AES_KEY *key
* The key parameter has been voided to avoid requiring Openssl headers
*/
void AES_decrypt(const unsigned char *in, unsigned char *out, const void *key) {
return;
}
/*
* const AES_KEY *key
* The key parameter has been voided to avoid requiring Openssl headers
*/
void AES_ctr128_encrypt(const unsigned char *in, unsigned char *out, const void *key) {
return;
}
/*
* const AES_KEY *key
* The key parameter has been voided to avoid requiring Openssl headers
*/
void AES_ctr128_decrypt(const unsigned char *in, unsigned char *out, const void *key) {
return;
}
/*
* There is a corner case on certain machines that causes padding-related errors
* when the EVP_Cipher is set to use aesni_cbc_hmac_sha1_cipher. Our memmove
* implementation does not handle padding.
*
* We attempt to disable the use of aesni_cbc_hmac_sha1_cipher with the environment
* variable OPENSSL_ia32cap=~0x200000200000000, and by default intercept EVP_Cipher
* in order to skip the encryption.
*
* If that doesn't work, the user can request that we let the application perform
* the encryption by defining SHADOW_ENABLE_EVPCIPHER, which means we will not
* intercept EVP_Cipher and instead let OpenSSL do its thing.
*/
#ifndef SHADOW_ENABLE_EVPCIPHER
/*
* EVP_CIPHER_CTX *ctx
* The ctx parameter has been voided to avoid requiring Openssl headers
*/
int EVP_Cipher(struct evp_cipher_ctx_st* ctx, unsigned char *out, const unsigned char *in, unsigned int inl){
memmove(out, in, (size_t)inl);
return 1;
}
#endif
void RAND_seed(const void *buf, int num) {
return;
}
void RAND_add(const void *buf, int num, double entropy) {
return;
}
int RAND_poll() {
return 1;
}
static int _shadowtorpreload_getRandomBytes(char* buf, int numBytes) {
int bytesWritten = 0;
/* shadow interposes this and will fill the buffer for us */
int fd = open("/dev/random", O_RDONLY);
int res = read(fd, buf, (size_t)numBytes);
assert(res > 0);
close(fd);
return 1;
}
int RAND_bytes(unsigned char *buf, int num) {
return _shadowtorpreload_getRandomBytes(buf, num);
}
int RAND_pseudo_bytes(unsigned char *buf, int num) {
return _shadowtorpreload_getRandomBytes(buf, num);
}
void RAND_cleanup(void) {
return;
}
int RAND_status(void) {
return 1;
}
static const struct {
void* seed;
void* bytes;
void* cleanup;
void* add;
void* pseudorand;
void* status;
} shadowtorpreload_customRandMethod = {
RAND_seed,
RAND_bytes,
RAND_cleanup,
RAND_add,
RAND_pseudo_bytes,
RAND_status
};
const RAND_METHOD* RAND_get_rand_method() {
return (const RAND_METHOD*)(&shadowtorpreload_customRandMethod);
}
RAND_METHOD* RAND_SSLeay() {
return (RAND_METHOD*)(&shadowtorpreload_customRandMethod);
}
|
the_stack_data/165764645.c | #include<stdio.h>
#include<stdlib.h>
#include<time.h>
void print(int arr[10][10]);
int main(void){
srand(time(NULL));
int sum;
//Change the answer key as per your needs
int answer_key[] = {3,1,4,1,2,3,4,2,4,1};
int answer_sheet[10][10];
//Filling the answer sheet randomly
for(int i=0; i<10; i++)
for(int j=0; j<10; j++)
answer_sheet[i][j] = 1 + rand()%4;
//Checking the answer sheet
printf("\t***Marks***\n");
for(int i=0; i<10; i++){
sum = 0;
for(int j=0; j<10; j++)
if(answer_key[j] == answer_sheet[i][j])
sum += 4;
printf("Student %d: %d \n",i+1,sum);
}
// print(answer_sheet);
}
//optional function to print answer sheet of students
/*
void print(int array[10][10]){
for(int i=0; i<10; i++){
for(int j=0; j<10; j++){
printf("%d ",array[i][j]);
}
printf("\n");
}
}
*/
|
the_stack_data/168893668.c | //O antigo filósofo grego Zeno é, talvez, melhor conhecido pelo paradoxo de Aquiles e a tartaruga. Aquiles e
//a tartaruga disputam uma corrida. Aquiles corre dez vezes mais rápido do que a tartaruga, porém a
//tartaruga tem M metros de vantagem. Pode-se argumentar que Aquiles nunca ultrapassará a tartaruga, pois,
//quando ele atingir o ponto onde a tartaruga estava, ela já estará um pouco à frente.
//Faça um programa para calcular se Aquiles ultrapassará a tartaruga e, em caso positivo, o tempo no
//qual Aquiles deixará a tartaruga para trás.
#include <stdio.h>
int main()
{
int m_vant,aqui=1,tart=0;
printf("Diga quantos metros de vantagem a tartaruga tem.\n");
scanf("%d",&m_vant);
tart = tart + m_vant;
do
{
for(aqui=1;aqui>=tart;aqui++)
{
tart++;
aqui = aqui * 10;
}
}while(aqui<=tart);
return 0;
} |
the_stack_data/25137968.c | /* { dg-do run } */
/* { dg-additional-options "-Wno-pedantic -Wno-long-long -fshort-enums" } */
/* va args, promoted as regular knr args. */
void __attribute__ ((noinline)) chars (int i, ...)
{
__builtin_va_list args;
__builtin_va_start (args, i);
if (__builtin_va_arg (args, int) != 1) __builtin_abort ();
if (__builtin_va_arg (args, int) != 2) __builtin_abort ();
__builtin_va_end (args);
}
void __attribute__ ((noinline)) shorts (int i, ...)
{
__builtin_va_list args;
__builtin_va_start (args, i);
if (__builtin_va_arg (args, int) != 1) __builtin_abort ();
if (__builtin_va_arg (args, int) != 2) __builtin_abort ();
if (__builtin_va_arg (args, int) != 3) __builtin_abort ();
__builtin_va_end (args);
}
void __attribute__ ((noinline)) ints (int i, ...)
{
__builtin_va_list args;
__builtin_va_start (args, i);
if (__builtin_va_arg (args, int) != 1) __builtin_abort ();
if (__builtin_va_arg (args, int) != 2) __builtin_abort ();
if (__builtin_va_arg (args, int) != 3) __builtin_abort ();
__builtin_va_end (args);
}
void __attribute__ ((noinline)) longlongs (int i, ...)
{
__builtin_va_list args;
__builtin_va_start (args, i);
if (__builtin_va_arg (args, int) != 1) __builtin_abort ();
if (__builtin_va_arg (args, long long) != 2) __builtin_abort ();
if (__builtin_va_arg (args, long long) != 3) __builtin_abort ();
__builtin_va_end (args);
}
typedef int __attribute__ ((mode(TI))) ti;
void __attribute__ ((noinline)) tis (int i, ...)
{
__builtin_va_list args;
__builtin_va_start (args, i);
if (__builtin_va_arg (args, int) != 1) __builtin_abort ();
if (__builtin_va_arg (args, ti) != 2) __builtin_abort ();
if (__builtin_va_arg (args, ti) != 3) __builtin_abort ();
__builtin_va_end (args);
}
void __attribute__ ((noinline)) floats (int i, ...)
{
__builtin_va_list args;
__builtin_va_start (args, i);
if (__builtin_va_arg (args, int) != 1) __builtin_abort ();
if (__builtin_va_arg (args, double) != 2) __builtin_abort ();
if (__builtin_va_arg (args, double) != 3) __builtin_abort ();
__builtin_va_end (args);
}
void __attribute__ ((noinline)) doubles (int i, ...)
{
__builtin_va_list args;
__builtin_va_start (args, i);
if (__builtin_va_arg (args, int) != 1) __builtin_abort ();
if (__builtin_va_arg (args, double) != 2) __builtin_abort ();
if (__builtin_va_arg (args, double) != 3) __builtin_abort ();
__builtin_va_end (args);
}
typedef enum {ec1, ec2, ecmax = 0xf} echar;
typedef enum {es1, es2, esmax = 0xfff} eshort;
typedef enum {ei1, ei2, eimax = 0xfffff} eint;
void __attribute__ ((noinline)) echars (int i, ...)
{
__builtin_va_list args;
__builtin_va_start (args, i);
if (__builtin_va_arg (args, int) != ec1) __builtin_abort ();
if (__builtin_va_arg (args, int) != ec2) __builtin_abort ();
if (__builtin_va_arg (args, int) != ecmax) __builtin_abort ();
__builtin_va_end (args);
}
void __attribute__ ((noinline)) eshorts (int i, ...)
{
__builtin_va_list args;
__builtin_va_start (args, i);
if (__builtin_va_arg (args, int) != es1) __builtin_abort ();
if (__builtin_va_arg (args, int) != es2) __builtin_abort ();
if (__builtin_va_arg (args, int) != esmax) __builtin_abort ();
__builtin_va_end (args);
}
void __attribute__ ((noinline)) eints (int i, ...)
{
__builtin_va_list args;
__builtin_va_start (args, i);
if (__builtin_va_arg (args, int) != ei1) __builtin_abort ();
if (__builtin_va_arg (args, int) != ei2) __builtin_abort ();
if (__builtin_va_arg (args, int) != eimax) __builtin_abort ();
__builtin_va_end (args);
}
typedef struct {char a;} one;
typedef struct {short a;} two;
typedef struct {int a;} four;
typedef struct {long long a;} eight;
typedef struct {int a, b[12];} big;
void __attribute__ ((noinline)) structs (int i, ...)
{
__builtin_va_list args;
__builtin_va_start (args, i);
if (__builtin_va_arg (args, int) != 1) __builtin_abort ();
if (__builtin_va_arg (args, one).a != 2) __builtin_abort ();
if (__builtin_va_arg (args, int) != 3) __builtin_abort ();
if (__builtin_va_arg (args, two).a != 4) __builtin_abort ();
if (__builtin_va_arg (args, int) != 5) __builtin_abort ();
if (__builtin_va_arg (args, four).a != 6) __builtin_abort ();
if (__builtin_va_arg (args, int) != 7) __builtin_abort ();
if (__builtin_va_arg (args, eight).a != 8) __builtin_abort ();
if (__builtin_va_arg (args, int) != 9) __builtin_abort ();
if (__builtin_va_arg (args, big).a != 10) __builtin_abort ();
__builtin_va_end (args);
}
int main ()
{
char vc1, vc2, vc3, vc4, vc5;
short vs1, vs2, vs3;
int vi1, vi2, vi3;
long long vll1, vll2;
ti vti1, vti2;
float vf1, vf2;
double vd1, vd2;
one vone;
two vtwo;
four vfour;
eight veight;
big vbig;
echar vec1, vec2, vec3;
eshort ves1, ves2, ves3;
eint vei1, vei2, vei3;
vc1 = 1, vc2 = 2;
chars (1, vc1, vc2);
vc1 = 1, vs1 = 2, vs2 = 3;
shorts (1, vc1, vs1, vs2);
vc1 = 1, vi1 = 2, vi2 = 3;
ints (1, vc1, vi1, vi2);
vc1 = 1, vll1 = 2, vll2 = 3;
longlongs (1, vc1, vll1, vll2);
vc1 = 1, vti1 = 2, vti2 = 3;
tis (1, vc1, vti1, vti2);
vc1 = 1, vf1 = 2, vf2 = 3;
floats (1, vc1, vf1, vf2);
doubles (1, vc1, vf1, vf2); /* Floats are promoted, so this should work. */
vc1 = 1, vd1 = 2, vd2 = 3;
floats (1, vc1, vf1, vf2); /* Floats are promoted, so this should work. */
doubles (1, vc1, vf1, vf2);
vec1 = ec1, vec2 = ec2, vec3 = ecmax;
echars (1, vec1, vec2, vec3);
vc1 = ec1, vc2 = ec2, vc3 = ecmax;
echars (1, vc1, vc2, vc3);
ves1 = ec1, ves2 = ec2, ves3 = esmax;
eshorts (1, ves1, ves2, ves3);
vs1 = ec1, vs2 = ec2, vs3 = esmax;
eshorts (1, vs1, vs2, vs3);
vei1 = ec1, vei2 = ec2, vei3 = eimax;
eints (1, vei1, vei2, vei3);
vi1 = ec1, vi2 = ec2, vi3 = eimax;
eints (1, vi1, vi2, vi3);
vc1 = 1, vone.a = 2, vc2 = 3, vtwo.a = 4,
vc3 = 5, vfour.a = 6, vc4 = 7, veight.a = 8,
vc5 = 9, vbig.a = 10;
structs (1, vc1, vone, vc2, vtwo, vc3, vfour, vc4, veight, vc5, vbig);
return 0;
}
|
the_stack_data/146589.c | /*
************************************************
username : smmehrab
fullname : s.m.mehrabul islam
email : [email protected]
institute : university of dhaka, bangladesh
session : 2017-2018
************************************************
*/
#include<stdio.h>
#include<string.h>
int main()
{
char a[100100],b[100100];
int i,c,la,lb,l,l1,m;
scanf("%s", a);
scanf("%s", b);
c=0;
la=strlen(a);
lb=strlen(b);
if(la!=lb)
{
if(la>lb) c=la;
else c=lb;
}
else if(la==lb)
{
for(i=0;i<la;i++)
{
if(a[i]==b[i]) c=0;
else
{
c=la;
break;
}
}
}
if(c==0) c=-1;
printf("%d\n",c);
return 0;
}
|
the_stack_data/874213.c | // RUN: %clam --inline --lower-select --lower-unsigned-icmp --crab-print-invariants=false --crab-dom=boxes --crab-check=assert %opts --crab-sanity-checks "%s" 2>&1 | OutputCheck -l debug %s
// CHECK: ^1 Number of total safe checks$
// CHECK: ^0 Number of total error checks$
// CHECK: ^0 Number of total warning checks$
extern void __VERIFIER_error() __attribute__ ((__noreturn__));
extern char __VERIFIER_nondet_char(void);
extern int __VERIFIER_nondet_int(void);
extern long __VERIFIER_nondet_long(void);
extern void *__VERIFIER_nondet_pointer(void);
extern int __VERIFIER_nondet_int();
// This is a simplified version of s3_srvr_1.cil.c
int main() {
int s__state ;
int s__hit = __VERIFIER_nondet_int() ;
int s__verify_mode = __VERIFIER_nondet_int() ;
int s__session__peer = __VERIFIER_nondet_int() ;
unsigned long s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_long() ;
int buf ;
int cb ;
int blastFlag ;
int tmp___1;
s__state = 8466;
blastFlag = 0;
while (1) {
if (s__state <= 8512 && blastFlag > 2) { goto ERROR; }
{
{
{
{
{
if (s__state == 8466) {
goto switch_1_8466;
} else {
if (s__state == 8496) {
goto switch_1_8496;
} else {
{
if (s__state == 8512) {
goto switch_1_8512;
} else {
{
if (s__state == 8528) {
goto switch_1_8528;
} else {
{
if (s__state == 8544) {
goto switch_1_8544;
} else {
{
if (s__state == 8560) {
goto switch_1_8560;
} else {
{
if (s__state == 8576) {
goto switch_1_8576;
} else {
{
if (s__state == 8592) {
goto switch_1_8592;
} else {
{
if (s__state == 8608) {
goto switch_1_8608;
} else {
{
if (s__state == 8640) {
goto switch_1_8640;
} else {
{
if (s__state == 8656) {
goto switch_1_8656;
} else {
{
if (s__state == 8672) {
goto switch_1_8672;
} else {
goto end;
switch_1_8466:
if (blastFlag == 0) {
blastFlag = 1;
}
s__state = 8496;
goto switch_1_break;
switch_1_8496:
if (blastFlag == 1) {
blastFlag = 2;
}
if (s__hit) {
s__state = 8656;
} else {
s__state = 8512;
}
goto switch_1_break;
switch_1_8512:
s__state = 8528;
goto switch_1_break;
switch_1_8528:
s__state = 8544;
goto switch_1_break;
switch_1_8544:
if (s__verify_mode + 1) {
if (s__session__peer != 0) {
if (s__verify_mode + 4) {
s__state = 8560;
} else {
goto _L___2;
}
} else {
_L___2:
if (s__s3__tmp__new_cipher__algorithms + 256UL) {
if (s__verify_mode + 2) {
goto _L___1;
} else {
s__state = 8560;
}
} else {
_L___1:
s__state = 8576;
}
}
} else {
s__state = 8560;
}
goto switch_1_break;
switch_1_8560:
s__state = 8576;
goto switch_1_break;
switch_1_8576:
tmp___1 = __VERIFIER_nondet_int();
if (tmp___1 == 2) {
s__state = 8466;
} else {
s__state = 8592;
}
goto switch_1_break;
switch_1_8592:
s__state = 8608;
goto switch_1_break;
switch_1_8608:
s__state = 8640;
goto switch_1_break;
switch_1_8640:
if (blastFlag == 3) {
blastFlag = 4;
}
if (s__hit) {
goto end;
} else {
s__state = 8656;
}
goto switch_1_break;
switch_1_8656:
if (blastFlag == 2) {
blastFlag = 3;
}
s__state = 8672;
goto switch_1_break;
switch_1_8672:
if (blastFlag == 4) {
blastFlag = 5;
} else {
if (blastFlag == 5) {
goto ERROR;
}
}
if (s__hit) {
s__state = 8640;
} else {
goto end;
}
goto switch_1_break;
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
switch_1_break: ;
}
end:
return (-1);
ERROR: __VERIFIER_error();
return (-1);
}
|
the_stack_data/89238.c | #include<stdio.h>
int main()
{
long int percent, pop = 100000;
int i;
for(i=1;i<=10;i++)
{
percent = 0.1 * pop;
pop = (pop - percent);
printf("%d year = %ld\n",i,pop);
}
return 0;
}
|
the_stack_data/31387880.c | int a,b,c;
float x,y,z;
void f1(int p, int q) {
p = q;
a = b;
}
void main() {
int a,b;
a = 1;
b = 3;
f1(a, b);
} |
the_stack_data/111079377.c | /****************************************************************************
* libs/libc/sched/task_testcancel.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <sched.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: task_testcancel
*
* Description:
* The task_testcancel() function creates a cancellation point in the
* calling thread. The task_testcancel() function has no effect if
* cancelability is disabled
*
****************************************************************************/
void task_testcancel(void)
{
}
|
the_stack_data/147601.c | #include<stdio.h>
void main(){
int n1,n2,n3,n4,n5,n6,n7,n8,n9,n10, m1, m2;
printf("Numero 1: ");
scanf("%d", &n1);
printf("Numero 2: ");
scanf("%d", &n2);
printf("Numero 3: ");
scanf("%d", &n3);
printf("Numero 4: ");
scanf("%d", &n4);
printf("Numero 5: ");
scanf("%d", &n5);
printf("Numero 6: ");
scanf("%d", &n6);
printf("Numero 7: ");
scanf("%d", &n7);
printf("Numero 8: ");
scanf("%d", &n8);
printf("Numero 9: ");
scanf("%d", &n9);
printf("Numero 10: ");
scanf("%d", &n10);
if(n1 > n2){
m1 = n1;
m2 = n2;
}else{
m1 = n2;
m2 = n1;
}
if(n3 < m1 && n3 > m2){//n3 esta entre m1 e m2
m2 = n3;
}else if(n3 > m1){//caso n3 seja maior que m1
m2 = m1;//m1 passa a ser o segundo maior
m1 = n3;//e m1 recebe o meio numero
}
if(n4 < m1 && n4 > m2){//
m2 = n4;
}else if(n4 > m1){
m2 = m1;
m1 = n4;
}
if(n5 < m1 && n5 > m2){
m2 = n5;
}else if(n5 > m1){
m2 = m1;
m1 = n5;
}
if(n6 < m1 && n6 > m2){
m2 = n6;
}else if(n6 > m1){
m2 = m1;
m1 = n6;
}
if(n7 < m1 && n7 > m2){
m2 = n7;
}else if(n7 > m1){
m2 = m1;
m1 = n7;
}
if(n8 < m2 && n8 > m2){
m2 = n8;
}else if(n8 > m1){
m2 = m1;
m1 = n8;
}
if(n9 < m1 && n9 > m2){
m2 = n9;
}else if(n9 > m1){
m2 = m1;
m1 = n9;
}
if(n10 < m1 && n10 > m2){
m2 = n10;
}else if(n10 > m1){
m2 = m1;
m1 = n10;
}
printf("Maior 2: %d\n", m2);
}
|
the_stack_data/20450604.c | /**
******************************************************************************
* @file stm32f3xx_ll_comp.c
* @author MCD Application Team
* @brief COMP LL module driver
******************************************************************************
* @attention
*
* <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
#if defined(USE_FULL_LL_DRIVER)
/* Includes ------------------------------------------------------------------*/
#include "stm32f3xx_ll_comp.h"
#ifdef USE_FULL_ASSERT
#include "stm32_assert.h"
#else
#define assert_param(expr) ((void)0U)
#endif
/** @addtogroup STM32F3xx_LL_Driver
* @{
*/
/* Note: Devices of STM32F3 serie embed 1 out of 2 different comparator IP. */
/* - STM32F30x, STM32F31x, STM32F32x, STM32F33x, STM32F35x, STM32F39x: */
/* COMP IP from 3 to 7 instances and other specific features */
/* (comparator output blanking, ...) (refer to reference manual). */
/* - STM32F37x: */
/* COMP IP with 2 instances */
/* This file contains the drivers of these COMP IP, located in 2 area */
/* delimited by compilation switches. */
#if defined(COMP_V1_3_0_0)
#if defined (COMP1) || defined (COMP2) || defined (COMP3) || defined (COMP4) || defined (COMP5) || defined (COMP6) || defined (COMP7)
/** @addtogroup COMP_LL COMP
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup COMP_LL_Private_Macros
* @{
*/
/* Check of parameters for configuration of COMP hierarchical scope: */
/* COMP instance. */
#if defined(COMP_CSR_COMPxMODE)
#define IS_LL_COMP_POWER_MODE(__POWER_MODE__) \
( ((__POWER_MODE__) == LL_COMP_POWERMODE_HIGHSPEED) \
|| ((__POWER_MODE__) == LL_COMP_POWERMODE_MEDIUMSPEED) \
|| ((__POWER_MODE__) == LL_COMP_POWERMODE_LOWPOWER) \
|| ((__POWER_MODE__) == LL_COMP_POWERMODE_ULTRALOWPOWER) \
)
#else
#define IS_LL_COMP_POWER_MODE(__POWER_MODE__) \
((__POWER_MODE__) == LL_COMP_POWERMODE_HIGHSPEED)
#endif
/* Note: On this STM32 serie, comparator input plus parameters are */
/* the same on all COMP instances. */
/* However, comparator instance kept as macro parameter for */
/* compatibility with other STM32 families. */
#if defined(COMP_CSR_COMPxNONINSEL) && defined(LL_COMP_INPUT_PLUS_DAC1_CH1_COMP1)
/* Note: On devices where bit COMP_CSR_COMPxNONINSEL is available, */
/* feature LL_COMP_INPUT_PLUS_DAC1_CH1_COMP1 is also available. */
#define IS_LL_COMP_INPUT_PLUS(__COMP_INSTANCE__, __INPUT_PLUS__) \
( ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO1) \
|| ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO2) \
|| ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_DAC1_CH1_COMP1) \
)
#elif defined(COMP_CSR_COMPxNONINSEL) && defined(LL_COMP_INPUT_PLUS_DAC1_CH1_COMP2)
/* Note: On devices where bit COMP_CSR_COMPxNONINSEL is available, */
/* feature LL_COMP_INPUT_PLUS_DAC1_CH1_COMP1 is also available. */
#define IS_LL_COMP_INPUT_PLUS(__COMP_INSTANCE__, __INPUT_PLUS__) \
( ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO1) \
|| ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO2) \
|| ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_DAC1_CH1_COMP2) \
)
#elif defined(COMP_CSR_COMPxNONINSEL)
#define IS_LL_COMP_INPUT_PLUS(__COMP_INSTANCE__, __INPUT_PLUS__) \
( ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO1) \
|| ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO2) \
)
#elif defined(LL_COMP_INPUT_PLUS_DAC1_CH1_COMP2)
/* Note: On devices where bit COMP_CSR_COMPxNONINSEL is available, */
/* feature LL_COMP_INPUT_PLUS_DAC1_CH1_COMP1 is also available. */
#define IS_LL_COMP_INPUT_PLUS(__COMP_INSTANCE__, __INPUT_PLUS__) \
( ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO1) \
|| ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_DAC1_CH1_COMP2) \
)
#else
/* Note: Device without comparator input plus configurable: corresponds to */
/* setting "LL_COMP_INPUT_PLUS_IO1" or "LL_COMP_INPUT_PLUS_IO2" */
/* compared to other STM32F3 devices, depending on comparator instance */
/* (refer to reference manual). */
#define IS_LL_COMP_INPUT_PLUS(__COMP_INSTANCE__, __INPUT_PLUS__) \
((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO1)
#endif
#if defined(STM32F303xC) || defined(STM32F358xx) || defined(STM32F303xE) || defined(STM32F398xx)
#define IS_LL_COMP_INPUT_MINUS(__COMP_INSTANCE__, __INPUT_MINUS__) \
( ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_4VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_2VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_3_4VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH1) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH2) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO1) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO2) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO3) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO4) \
)
#elif defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8)
#define IS_LL_COMP_INPUT_MINUS(__COMP_INSTANCE__, __INPUT_MINUS__) \
( ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_4VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_2VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_3_4VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH1) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH2) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO1) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO2) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO4) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC2_CH1) \
)
#elif defined(STM32F302xC) || defined(STM32F302xE)
#define IS_LL_COMP_INPUT_MINUS(__COMP_INSTANCE__, __INPUT_MINUS__) \
( ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_4VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_2VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_3_4VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH1) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO1) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO2) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO3) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO4) \
)
#else /* STM32F301x8 || STM32F318xx || STM32F302x8 */
#define IS_LL_COMP_INPUT_MINUS(__COMP_INSTANCE__, __INPUT_MINUS__) \
( ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_4VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_2VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_3_4VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH1) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO1) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO2) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO4) \
)
#endif
#if defined(COMP_CSR_COMPxHYST)
#define IS_LL_COMP_INPUT_HYSTERESIS(__INPUT_HYSTERESIS__) \
( ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_NONE) \
|| ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_LOW) \
|| ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_MEDIUM) \
|| ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_HIGH) \
)
#else
#define IS_LL_COMP_INPUT_HYSTERESIS(__INPUT_HYSTERESIS__) \
((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_NONE)
#endif
#if defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx)
#define IS_LL_COMP_OUTPUT_SELECTION(__COMP_INSTANCE__, __OUTPUT_SELECTION__) \
(( ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_NONE) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_BKIN) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_BKIN2) \
) \
? ( \
(1U) \
) \
: \
(((__COMP_INSTANCE__) == COMP2) \
? ( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_IC1_COMP2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_IC4_COMP2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_OCCLR_COMP2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_OCCLR_COMP2) \
) \
: \
(((__COMP_INSTANCE__) == COMP4) \
? ( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM15_IC2_COMP4) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM15_OCCLR_COMP4) \
) \
: \
( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_IC2_COMP6) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_OCCLR_COMP6) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM16_IC1_COMP6) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM16_OCCLR_COMP6) \
) \
) \
) \
)
#elif defined(STM32F303x8) || defined(STM32F328xx) || defined(STM32F334x8)
#define IS_LL_COMP_OUTPUT_SELECTION(__COMP_INSTANCE__, __OUTPUT_SELECTION__) \
(( ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_NONE) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_BKIN) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_BKIN2) \
) \
? ( \
(1U) \
) \
: \
(((__COMP_INSTANCE__) == COMP2) \
? ( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_OCCLR_COMP2_4) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_IC1_COMP2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_IC4_COMP2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_OCCLR_COMP2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_OCCLR_COMP2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_IC1_COMP2) \
) \
: \
(((__COMP_INSTANCE__) == COMP4) \
? ( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_OCCLR_COMP2_4)\
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_IC3_COMP4) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM15_IC2_COMP4) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM15_OCCLR_COMP4) \
) \
: \
( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_IC2_COMP6) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_OCCLR_COMP6) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM16_IC1_COMP6) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM16_OCCLR_COMP6) \
) \
) \
) \
)
#elif defined(STM32F302xC) || defined(STM32F302xE)
#define IS_LL_COMP_OUTPUT_SELECTION(__COMP_INSTANCE__, __OUTPUT_SELECTION__) \
(( ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_NONE) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_BKIN) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_BKIN2) \
) \
? ( \
(1U) \
) \
: \
((((__COMP_INSTANCE__) == COMP1) || ((__COMP_INSTANCE__) == COMP2)) \
? ( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_OCCLR_COMP1_2_4) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_IC1_COMP1_2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_IC4_COMP1_2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_OCCLR_COMP1_2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_OCCLR_COMP1_2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_IC1_COMP1_2) \
) \
: \
(((__COMP_INSTANCE__) == COMP4) \
? ( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_OCCLR_COMP1_2_4) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_IC3_COMP4) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM4_IC2_COMP4) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM15_IC2_COMP4) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM15_OCCLR_COMP4) \
) \
: \
( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_OCCLR_COMP1_2_4) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_IC2_COMP6) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_OCCLR_COMP6) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM4_IC4_COMP6) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM16_IC1_COMP6) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM16_OCCLR_COMP6) \
) \
) \
) \
)
#elif defined(STM32F303xC) || defined(STM32F358xx)
#define IS_LL_COMP_OUTPUT_SELECTION(__COMP_INSTANCE__, __OUTPUT_SELECTION__) \
(( ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_NONE) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_BKIN) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_BKIN2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_TIM8_BKIN2) \
) \
? ( \
(1U) \
) \
: \
((((__COMP_INSTANCE__) == COMP1) || ((__COMP_INSTANCE__) == COMP2)) \
? ( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_OCCLR_COMP1_2_3_7) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_OCCLR_COMP1_2_3) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_OCCLR_COMP1_2_4_5) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_IC1_COMP1_2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_IC4_COMP1_2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_IC1_COMP1_2) \
) \
: \
(((__COMP_INSTANCE__) == COMP3) \
? ( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_OCCLR_COMP1_2_3_7) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_OCCLR_COMP1_2_3) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_IC2_COMP3) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM4_IC1_COMP3) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM15_IC1_COMP3) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM15_BKIN) \
) \
: \
(((__COMP_INSTANCE__) == COMP4) \
? ( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_OCCLR_COMP1_2_4_5) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_IC3_COMP4) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM4_IC2_COMP4) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM15_IC2_COMP4) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM15_OCCLR_COMP4) \
) \
: \
(((__COMP_INSTANCE__) == COMP5) \
? ( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_OCCLR_COMP1_2_4_5) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM8_OCCLR_COMP4_5_6_7) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_IC1_COMP5) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM4_IC3_COMP5) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM17_IC1_COMP5) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM16_BKIN) \
) \
: \
(((__COMP_INSTANCE__) == COMP6) \
? ( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM8_OCCLR_COMP4_5_6_7) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_IC2_COMP6) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_OCCLR_COMP6) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM4_IC4_COMP6) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM16_IC1_COMP6) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM16_OCCLR_COMP6) \
) \
: \
( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_OCCLR_COMP1_2_3_7) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM8_OCCLR_COMP4_5_6_7) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_IC2_COMP7) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_IC3_COMP7) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM17_OCCLR_COMP7) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM17_BKIN) \
) \
) \
) \
) \
) \
) \
)
#elif defined(STM32F303xE) || defined(STM32F398xx)
#define IS_LL_COMP_OUTPUT_SELECTION(__COMP_INSTANCE__, __OUTPUT_SELECTION__) \
(( ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_NONE) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_BKIN) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_BKIN2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_TIM8_BKIN2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM20_BKIN) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM20_BKIN2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_TIM8_TIM20_BKIN2) \
) \
? ( \
(1U) \
) \
: \
((((__COMP_INSTANCE__) == COMP1) || ((__COMP_INSTANCE__) == COMP2)) \
? ( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_OCCLR_COMP1_2_3_7) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_OCCLR_COMP1_2_3) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_OCCLR_COMP1_2_4_5) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_IC1_COMP1_2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_IC4_COMP1_2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_IC1_COMP1_2) \
|| (((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM20_OCCLR_COMP2) \
&& ((__COMP_INSTANCE__) == COMP2) ) \
) \
: \
(((__COMP_INSTANCE__) == COMP3) \
? ( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_OCCLR_COMP1_2_3_7) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_OCCLR_COMP1_2_3) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_IC2_COMP3) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM4_IC1_COMP3) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM15_IC1_COMP3) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM15_BKIN) \
) \
: \
(((__COMP_INSTANCE__) == COMP4) \
? ( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_OCCLR_COMP1_2_4_5) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_IC3_COMP4) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM4_IC2_COMP4) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM15_IC2_COMP4) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM15_OCCLR_COMP4) \
) \
: \
(((__COMP_INSTANCE__) == COMP5) \
? ( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_OCCLR_COMP1_2_4_5) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM8_OCCLR_COMP4_5_6_7) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_IC1_COMP5) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM4_IC3_COMP5) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM17_IC1_COMP5) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM16_BKIN) \
) \
: \
(((__COMP_INSTANCE__) == COMP6) \
? ( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM8_OCCLR_COMP4_5_6_7) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_IC2_COMP6) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_OCCLR_COMP6) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM4_IC4_COMP6) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM16_IC1_COMP6) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM16_OCCLR_COMP6) \
) \
: \
( \
((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_OCCLR_COMP1_2_3_7) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM8_OCCLR_COMP4_5_6_7) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM1_IC2_COMP7) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_IC3_COMP7) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM17_OCCLR_COMP7) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM17_BKIN) \
) \
) \
) \
) \
) \
) \
)
#endif
#define IS_LL_COMP_OUTPUT_POLARITY(__POLARITY__) \
( ((__POLARITY__) == LL_COMP_OUTPUTPOL_NONINVERTED) \
|| ((__POLARITY__) == LL_COMP_OUTPUTPOL_INVERTED) \
)
#if defined(COMP_CSR_COMPxBLANKING)
#if defined(STM32F301x8) || defined(STM32F302x8) || defined(STM32F318xx) || defined(STM32F303x8) || defined(STM32F334x8) || defined(STM32F328xx)
#define IS_LL_COMP_OUTPUT_BLANKING_SOURCE(__COMP_INSTANCE__, __OUTPUT_BLANKING_SOURCE__) \
(((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_NONE) \
? ( \
(1U) \
) \
: \
(((__COMP_INSTANCE__) == COMP2) \
? ( \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM1_OC5_COMP2) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM2_OC3_COMP2) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM3_OC3_COMP2) \
) \
: \
(((__COMP_INSTANCE__) == COMP4) \
? ( \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM3_OC4_COMP4) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM15_OC1_COMP4) \
) \
: \
( \
(((__COMP_INSTANCE__) == COMP6) \
? ( \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM2_OC4_COMP6) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM15_OC2_COMP6) \
) \
: \
( \
(0U) \
) \
) \
) \
) \
) \
)
#elif defined(STM32F302xE) || defined(STM32F302xC)
#define IS_LL_COMP_OUTPUT_BLANKING_SOURCE(__COMP_INSTANCE__, __OUTPUT_BLANKING_SOURCE__) \
(((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_NONE) \
? ( \
(1U) \
) \
: \
((((__COMP_INSTANCE__) == COMP1) || ((__COMP_INSTANCE__) == COMP2)) \
? ( \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM1_OC5_COMP1_2) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM2_OC3_COMP1_2) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM3_OC3_COMP1_2) \
) \
: \
(((__COMP_INSTANCE__) == COMP4) \
? ( \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM3_OC4_COMP4) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM15_OC1_COMP4) \
) \
: \
( \
(((__COMP_INSTANCE__) == COMP6) \
? ( \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM2_OC4_COMP6) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM15_OC2_COMP6) \
) \
: \
( \
(0U) \
) \
) \
) \
) \
) \
)
#elif defined(STM32F303xE) || defined(STM32F398xx) || defined(STM32F303xC) || defined(STM32F358xx)
#define IS_LL_COMP_OUTPUT_BLANKING_SOURCE(__COMP_INSTANCE__, __OUTPUT_BLANKING_SOURCE__) \
(((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_NONE) \
? ( \
(1U) \
) \
: \
((((__COMP_INSTANCE__) == COMP1) || ((__COMP_INSTANCE__) == COMP2)) \
? ( \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM1_OC5_COMP1_2_7) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM2_OC3_COMP1_2) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM3_OC3_COMP1_2) \
) \
: \
(((__COMP_INSTANCE__) == COMP3) \
? ( \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM2_OC4_COMP3_6) \
) \
: \
(((__COMP_INSTANCE__) == COMP4) \
? ( \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM8_OC5_COMP4_5_6_7) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM3_OC4_COMP4) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM15_OC1_COMP4) \
) \
: \
(((__COMP_INSTANCE__) == COMP5) \
? ( \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM8_OC5_COMP4_5_6_7) \
) \
: \
(((__COMP_INSTANCE__) == COMP6) \
? ( \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM8_OC5_COMP4_5_6_7) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM2_OC4_COMP3_6) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM15_OC2_COMP6_7) \
) \
: \
( \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM8_OC5_COMP4_5_6_7) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM1_OC5_COMP1_2_7) \
|| ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM15_OC2_COMP6_7) \
) \
) \
) \
) \
) \
) \
)
#endif
#else
#define IS_LL_COMP_OUTPUT_BLANKING_SOURCE(__COMP_INSTANCE__, __OUTPUT_BLANKING_SOURCE__) \
((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_NONE)
#endif
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup COMP_LL_Exported_Functions
* @{
*/
/** @addtogroup COMP_LL_EF_Init
* @{
*/
/**
* @brief De-initialize registers of the selected COMP instance
* to their default reset values.
* @note If comparator is locked, de-initialization by software is
* not possible.
* The only way to unlock the comparator is a device hardware reset.
* @param COMPx COMP instance
* @retval An ErrorStatus enumeration value:
* - SUCCESS: COMP registers are de-initialized
* - ERROR: COMP registers are not de-initialized
*/
ErrorStatus LL_COMP_DeInit(COMP_TypeDef *COMPx)
{
ErrorStatus status = SUCCESS;
/* Check the parameters */
assert_param(IS_COMP_ALL_INSTANCE(COMPx));
/* Note: Hardware constraint (refer to description of this function): */
/* COMP instance must not be locked. */
if(LL_COMP_IsLocked(COMPx) == 0U)
{
LL_COMP_WriteReg(COMPx, CSR, 0x00000000U);
}
else
{
/* Comparator instance is locked: de-initialization by software is */
/* not possible. */
/* The only way to unlock the comparator is a device hardware reset. */
status = ERROR;
}
return status;
}
/**
* @brief Initialize some features of COMP instance.
* @note This function configures features of the selected COMP instance.
* Some features are also available at scope COMP common instance
* (common to several COMP instances).
* Refer to functions having argument "COMPxy_COMMON" as parameter.
* @param COMPx COMP instance
* @param COMP_InitStruct Pointer to a @ref LL_COMP_InitTypeDef structure
* @retval An ErrorStatus enumeration value:
* - SUCCESS: COMP registers are initialized
* - ERROR: COMP registers are not initialized
*/
ErrorStatus LL_COMP_Init(COMP_TypeDef *COMPx, LL_COMP_InitTypeDef *COMP_InitStruct)
{
ErrorStatus status = SUCCESS;
/* Check the parameters */
assert_param(IS_COMP_ALL_INSTANCE(COMPx));
assert_param(IS_LL_COMP_POWER_MODE(COMP_InitStruct->PowerMode));
assert_param(IS_LL_COMP_INPUT_PLUS(COMPx, COMP_InitStruct->InputPlus));
assert_param(IS_LL_COMP_INPUT_MINUS(COMPx, COMP_InitStruct->InputMinus));
assert_param(IS_LL_COMP_INPUT_HYSTERESIS(COMP_InitStruct->InputHysteresis));
assert_param(IS_LL_COMP_OUTPUT_SELECTION(COMPx, COMP_InitStruct->OutputSelection));
assert_param(IS_LL_COMP_OUTPUT_POLARITY(COMP_InitStruct->OutputPolarity));
assert_param(IS_LL_COMP_OUTPUT_BLANKING_SOURCE(COMPx, COMP_InitStruct->OutputBlankingSource));
/* Note: Hardware constraint (refer to description of this function) */
/* COMP instance must not be locked. */
if(LL_COMP_IsLocked(COMPx) == 0U)
{
/* Configuration of comparator instance : */
/* - PowerMode */
/* - InputPlus */
/* - InputMinus */
/* - InputHysteresis */
/* - OutputSelection */
/* - OutputPolarity */
/* - OutputBlankingSource */
MODIFY_REG(COMPx->CSR,
((uint32_t)0x00000000U)
#if defined(COMP_CSR_COMPxMODE)
| COMP_CSR_COMPxMODE
#endif
#if defined(COMP_CSR_COMPxNONINSEL)
| COMP_CSR_COMPxNONINSEL
#endif
| COMP_CSR_COMPxINSEL
#if defined(COMP_CSR_COMPxHYST)
| COMP_CSR_COMPxHYST
#endif
| COMP_CSR_COMPxOUTSEL
| COMP_CSR_COMPxPOL
| COMP_CSR_COMPxBLANKING
,
((uint32_t)0x00000000U)
#if defined(COMP_CSR_COMPxMODE)
| COMP_InitStruct->PowerMode
#endif
#if defined(COMP_CSR_COMPxNONINSEL)
| COMP_InitStruct->InputPlus
#endif
| COMP_InitStruct->InputMinus
#if defined(COMP_CSR_COMPxHYST)
| COMP_InitStruct->InputHysteresis
#endif
| COMP_InitStruct->OutputSelection
| COMP_InitStruct->OutputPolarity
| COMP_InitStruct->OutputBlankingSource
);
}
else
{
/* Initialization error: COMP instance is locked. */
status = ERROR;
}
return status;
}
/**
* @brief Set each @ref LL_COMP_InitTypeDef field to default value.
* @param COMP_InitStruct pointer to a @ref LL_COMP_InitTypeDef structure
* whose fields will be set to default values.
* @retval None
*/
void LL_COMP_StructInit(LL_COMP_InitTypeDef *COMP_InitStruct)
{
/* Set COMP_InitStruct fields to default values */
/* Note: Comparator power mode "high speed" is the only mode */
/* available on all STMF3 devices. */
COMP_InitStruct->PowerMode = LL_COMP_POWERMODE_HIGHSPEED;
COMP_InitStruct->InputPlus = LL_COMP_INPUT_PLUS_IO1;
COMP_InitStruct->InputMinus = LL_COMP_INPUT_MINUS_VREFINT;
COMP_InitStruct->InputHysteresis = LL_COMP_HYSTERESIS_NONE;
COMP_InitStruct->OutputSelection = LL_COMP_OUTPUT_NONE;
COMP_InitStruct->OutputPolarity = LL_COMP_OUTPUTPOL_NONINVERTED;
COMP_InitStruct->OutputBlankingSource = LL_COMP_BLANKINGSRC_NONE;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#endif /* COMP1 || COMP2 || COMP3 || COMP4 || COMP5 || COMP6 || COMP7 */
#endif /* STM32F301x8 || STM32F302x8 || STM32F302xC || STM32F302xE || STM32F303x8 || STM32F303xC || STM32F303xE || STM32F318xx || STM32F328xx || STM32F334x8 || STM32F358xx || STM32F398xx */
#if defined (COMP_V1_1_0_0)
#if defined (COMP1) || defined (COMP2)
/** @addtogroup COMP_LL COMP
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/* Private macros ------------------------------------------------------------*/
/** @addtogroup COMP_LL_Private_Macros
* @{
*/
/* Check of parameters for configuration of COMP hierarchical scope: */
/* COMP instance. */
#define IS_LL_COMP_POWER_MODE(__POWER_MODE__) \
( ((__POWER_MODE__) == LL_COMP_POWERMODE_HIGHSPEED) \
|| ((__POWER_MODE__) == LL_COMP_POWERMODE_MEDIUMSPEED) \
|| ((__POWER_MODE__) == LL_COMP_POWERMODE_LOWPOWER) \
|| ((__POWER_MODE__) == LL_COMP_POWERMODE_ULTRALOWPOWER) \
)
/* Note: On this STM32 serie, comparator input plus parameters are */
/* the different depending on COMP instances. */
#define IS_LL_COMP_INPUT_PLUS(__COMP_INSTANCE__, __INPUT_PLUS__) \
(((__COMP_INSTANCE__) == COMP1) \
? ( \
((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO1) \
|| ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_DAC1_CH1) \
) \
: \
( \
((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO1) \
) \
)
/* Note: On this STM32 serie, comparator input minus parameters are */
/* the same on all COMP instances. */
/* However, comparator instance kept as macro parameter for */
/* compatibility with other STM32 families. */
#define IS_LL_COMP_INPUT_MINUS(__COMP_INSTANCE__, __INPUT_MINUS__) \
( ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_4VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_2VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_3_4VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_VREFINT) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH1) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH2) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO1) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO2) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO3) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO4) \
|| ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC2_CH1) \
)
#define IS_LL_COMP_INPUT_HYSTERESIS(__INPUT_HYSTERESIS__) \
( ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_NONE) \
|| ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_LOW) \
|| ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_MEDIUM) \
|| ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_HIGH) \
)
/* Note: Output redirection is specific to COMP instances but is checked */
/* with literals of instance COMP2 (no differentiation possible since */
/* literals of COMP1 and COMP2 share the same values range). */
#define IS_LL_COMP_OUTPUT_SELECTION(__OUTPUT_SELECTION__) \
( ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_NONE) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM16_BKIN) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM4_IC1) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM4_OCCLR) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_IC4) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM2_OCCLR) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_IC1_COMP2) \
|| ((__OUTPUT_SELECTION__) == LL_COMP_OUTPUT_TIM3_OCCLR_COMP2) \
)
#define IS_LL_COMP_OUTPUT_POLARITY(__POLARITY__) \
( ((__POLARITY__) == LL_COMP_OUTPUTPOL_NONINVERTED) \
|| ((__POLARITY__) == LL_COMP_OUTPUTPOL_INVERTED) \
)
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/* Exported functions --------------------------------------------------------*/
/** @addtogroup COMP_LL_Exported_Functions
* @{
*/
/** @addtogroup COMP_LL_EF_Init
* @{
*/
/**
* @brief De-initialize registers of the selected COMP instance
* to their default reset values.
* @note If comparator is locked, de-initialization by software is
* not possible.
* The only way to unlock the comparator is a device hardware reset.
* @param COMPx COMP instance
* @retval An ErrorStatus enumeration value:
* - SUCCESS: COMP registers are de-initialized
* - ERROR: COMP registers are not de-initialized
*/
ErrorStatus LL_COMP_DeInit(COMP_TypeDef *COMPx)
{
ErrorStatus status = SUCCESS;
/* Check the parameters */
assert_param(IS_COMP_ALL_INSTANCE(COMPx));
/* Note: Hardware constraint (refer to description of this function): */
/* COMP instance must not be locked. */
if(LL_COMP_IsLocked(COMPx) == 0U)
{
/* Note: Connection switch is applicable only to COMP instance COMP1, */
/* therefore is COMP2 is selected the equivalent bit is */
/* kept unmodified. */
if(COMPx == COMP1)
{
CLEAR_BIT(COMP->CSR,
( COMP_CSR_COMP1MODE
| COMP_CSR_COMP1INSEL
| COMP_CSR_COMP1SW1
| COMP_CSR_COMP1OUTSEL
| COMP_CSR_COMP1HYST
| COMP_CSR_COMP1POL
| COMP_CSR_COMP1EN
) << __COMP_BITOFFSET_INSTANCE(COMPx)
);
}
else
{
CLEAR_BIT(COMP->CSR,
( COMP_CSR_COMP1MODE
| COMP_CSR_COMP1INSEL
| COMP_CSR_COMP1OUTSEL
| COMP_CSR_COMP1HYST
| COMP_CSR_COMP1POL
| COMP_CSR_COMP1EN
) << __COMP_BITOFFSET_INSTANCE(COMPx)
);
}
}
else
{
/* Comparator instance is locked: de-initialization by software is */
/* not possible. */
/* The only way to unlock the comparator is a device hardware reset. */
status = ERROR;
}
return status;
}
/**
* @brief Initialize some features of COMP instance.
* @note This function configures features of the selected COMP instance.
* Some features are also available at scope COMP common instance
* (common to several COMP instances).
* Refer to functions having argument "COMPxy_COMMON" as parameter.
* @param COMPx COMP instance
* @param COMP_InitStruct Pointer to a @ref LL_COMP_InitTypeDef structure
* @retval An ErrorStatus enumeration value:
* - SUCCESS: COMP registers are initialized
* - ERROR: COMP registers are not initialized
*/
ErrorStatus LL_COMP_Init(COMP_TypeDef *COMPx, LL_COMP_InitTypeDef *COMP_InitStruct)
{
ErrorStatus status = SUCCESS;
/* Check the parameters */
assert_param(IS_COMP_ALL_INSTANCE(COMPx));
assert_param(IS_LL_COMP_POWER_MODE(COMP_InitStruct->PowerMode));
assert_param(IS_LL_COMP_INPUT_PLUS(COMPx, COMP_InitStruct->InputPlus));
assert_param(IS_LL_COMP_INPUT_MINUS(COMPx, COMP_InitStruct->InputMinus));
assert_param(IS_LL_COMP_INPUT_HYSTERESIS(COMP_InitStruct->InputHysteresis));
assert_param(IS_LL_COMP_OUTPUT_SELECTION(COMP_InitStruct->OutputSelection));
assert_param(IS_LL_COMP_OUTPUT_POLARITY(COMP_InitStruct->OutputPolarity));
/* Note: Hardware constraint (refer to description of this function) */
/* COMP instance must not be locked. */
if(LL_COMP_IsLocked(COMPx) == 0U)
{
/* Configuration of comparator instance : */
/* - PowerMode */
/* - InputPlus */
/* - InputMinus */
/* - InputHysteresis */
/* - OutputSelection */
/* - OutputPolarity */
/* Note: Connection switch is applicable only to COMP instance COMP1, */
/* therefore is COMP2 is selected the equivalent bit is */
/* kept unmodified. */
if(COMPx == COMP1)
{
MODIFY_REG(COMP->CSR,
( COMP_CSR_COMP1MODE
| COMP_CSR_COMP1INSEL
| COMP_CSR_COMP1SW1
| COMP_CSR_COMP1OUTSEL
| COMP_CSR_COMP1HYST
| COMP_CSR_COMP1POL
) << __COMP_BITOFFSET_INSTANCE(COMPx)
,
( COMP_InitStruct->PowerMode
| COMP_InitStruct->InputPlus
| COMP_InitStruct->InputMinus
| COMP_InitStruct->InputHysteresis
| COMP_InitStruct->OutputSelection
| COMP_InitStruct->OutputPolarity
) << __COMP_BITOFFSET_INSTANCE(COMPx)
);
}
else
{
MODIFY_REG(COMP->CSR,
( COMP_CSR_COMP1MODE
| COMP_CSR_COMP1INSEL
| COMP_CSR_COMP1OUTSEL
| COMP_CSR_COMP1HYST
| COMP_CSR_COMP1POL
) << __COMP_BITOFFSET_INSTANCE(COMPx)
,
( COMP_InitStruct->PowerMode
| COMP_InitStruct->InputPlus
| COMP_InitStruct->InputMinus
| COMP_InitStruct->InputHysteresis
| COMP_InitStruct->OutputSelection
| COMP_InitStruct->OutputPolarity
) << __COMP_BITOFFSET_INSTANCE(COMPx)
);
}
}
else
{
/* Initialization error: COMP instance is locked. */
status = ERROR;
}
return status;
}
/**
* @brief Set each @ref LL_COMP_InitTypeDef field to default value.
* @param COMP_InitStruct pointer to a @ref LL_COMP_InitTypeDef structure
* whose fields will be set to default values.
* @retval None
*/
void LL_COMP_StructInit(LL_COMP_InitTypeDef *COMP_InitStruct)
{
/* Set COMP_InitStruct fields to default values */
COMP_InitStruct->PowerMode = LL_COMP_POWERMODE_ULTRALOWPOWER;
COMP_InitStruct->InputPlus = LL_COMP_INPUT_PLUS_IO1;
COMP_InitStruct->InputMinus = LL_COMP_INPUT_MINUS_VREFINT;
COMP_InitStruct->InputHysteresis = LL_COMP_HYSTERESIS_NONE;
COMP_InitStruct->OutputSelection = LL_COMP_OUTPUT_NONE;
COMP_InitStruct->OutputPolarity = LL_COMP_OUTPUTPOL_NONINVERTED;
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
#endif /* COMP1 || COMP2 */
#endif /* STM32F373xC || STM32F378xx */
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|
the_stack_data/153268872.c | #include <stdio.h>
int main() {
int num, pnum; // User input
int sp, last = 1; // Spaces
int a = 1, b;
printf("Enter a number: ");
scanf("%d", &num);
sp = num - 1;
while (a <= num) {
pnum = last + 2;
sp = sp - 1;
b = 0;
while (b <= sp){
printf(" ");
b++;
}
if (a == 1){
printf("#");
last = 1;
}
else{
b = 2;
while (b < pnum){
printf("#");
b++;
}
}
printf("\n");
a++;
last = pnum;
}
b = 0;
sp = num - 1;
while (b < sp) {
printf(" ");
b++;
}
printf("#\n\n");
return 0;
} |
the_stack_data/51174.c | /*
* UTIL.C -- Utility routines for the package.
*
* bswap2 (a, b, nbytes)
* bswap4 (a, aoff, b, boff, nbytes)
* bswap8 (a, aoff, b, boff, nbytes)
* flip (buffer, nx, ny)
* is_swapped ()
* min_max (a, npts, bitpix, min, max)
* strpak (in, out, len)
*
*
*/
#include <stdio.h>
#ifdef ULTRIX
#include <sys/types.h>
#endif
#include <unistd.h>
#ifndef AIXV3
#ifndef OSF1
typedef unsigned char uchar;
#endif
#endif
/* BSWAP2 - Move bytes from array "a" to array "b", swapping successive
* pairs of bytes. The two arrays may be the same but may not be offset
* and overlapping.
*/
bswap2 (a, b, nbytes)
char *a, *b; /* input array */
int nbytes; /* number of bytes to swap */
{
register char *ip=a, *op=b, *otop;
register unsigned temp;
/* Swap successive pairs of bytes.
*/
for (otop = op + (nbytes & ~1); op < otop; ) {
temp = *ip++;
*op++ = *ip++;
*op++ = temp;
}
/* If there is an odd byte left, move it to the output array.
*/
if (nbytes & 1)
*op = *ip;
}
/* BSWAP4 - Move bytes from array "a" to array "b", swapping the four bytes
* in each successive 4 byte group, i.e., 12345678 becomes 43218765.
* The input and output arrays may be the same but may not partially overlap.
*/
bswap4 (a, aoff, b, boff, nbytes)
char *a; /* input array */
int aoff; /* first byte in input array */
char *b; /* output array */
int boff; /* first byte in output array */
int nbytes; /* number of bytes to swap */
{
register char *ip, *op, *tp;
register int n;
static char temp[4];
tp = temp;
ip = (char *)a + aoff - 1;
op = (char *)b + boff - 1;
/* Swap successive four byte groups.
*/
for (n = nbytes >> 2; --n >= 0; ) {
*tp++ = *ip++;
*tp++ = *ip++;
*tp++ = *ip++;
*tp++ = *ip++;
*op++ = *--tp;
*op++ = *--tp;
*op++ = *--tp;
*op++ = *--tp;
}
/* If there are any odd bytes left, move them to the output array.
* Do not bother to swap as it is unclear how to swap a partial
* group, and really incorrect if the data is not modulus 4.
*/
for (n = nbytes & 03; --n >= 0; )
*op++ = *ip++;
}
/* BSWAP8 - Move bytes from array "a" to array "b", swapping the eight bytes
* in each successive 8 byte group, i.e., 12345678 becomes 87654321.
* The input and output arrays may be the same but may not partially overlap.
*/
bswap8 (a, aoff, b, boff, nbytes)
char *a; /* input array */
int aoff; /* first byte in input array */
char *b; /* output array */
int boff; /* first byte in output array */
int nbytes; /* number of bytes to swap */
{
register char *ip, *op, *tp;
register int n;
static char temp[8];
tp = temp;
ip = (char *)a + aoff - 1;
op = (char *)b + boff - 1;
/* Swap successive eight byte groups.
*/
for (n = nbytes >> 3; --n >= 0; ) {
*tp++ = *ip++;
*tp++ = *ip++;
*tp++ = *ip++;
*tp++ = *ip++;
*tp++ = *ip++;
*tp++ = *ip++;
*tp++ = *ip++;
*tp++ = *ip++;
*op++ = *--tp;
*op++ = *--tp;
*op++ = *--tp;
*op++ = *--tp;
*op++ = *--tp;
*op++ = *--tp;
*op++ = *--tp;
*op++ = *--tp;
}
/* If there are any odd bytes left, move them to the output array.
* Do not bother to swap as it is unclear how to swap a partial
* group, and really incorrect if the data is not modulus 8.
*/
for (n = nbytes & 03; --n >= 0; )
*op++ = *ip++;
}
/* IS_SWAPPED -- See if this is a byte-swapped (relative to Sun) machine.
*/
is_swapped ()
{
union {
char ch[4];
int i;
} u;
u.i = 1;
return ((int) u.ch[0]);
}
/* MIN_MAX -- Get the min and max values of an array.
*/
min_max (a, npts, bitpix, min, max)
char *a;
int npts;
int bitpix;
float *min, *max;
{
register int i;
*min = 32768.0, *max = -32768.0;
if (bitpix == 8) {
char *buf = (char *)a;
for (i=0; i < npts; i++) {
if (buf[i] < *min) *min = buf[i];
if (buf[i] > *max) *max = buf[i];
}
} else if (bitpix == 16) {
short *buf = (short *)a;
for (i=0; i < npts; i++) {
if (buf[i] < *min) *min = buf[i];
if (buf[i] > *max) *max = buf[i];
}
} else if (bitpix == 32) {
int *buf = (int *)a;
for (i=0; i < npts; i++) {
if (buf[i] < *min) *min = buf[i];
if (buf[i] > *max) *max = buf[i];
}
} else if (bitpix == -32) {
float *buf = (float *)a;
for (i=0; i < npts; i++) {
if (buf[i] < *min) *min = buf[i];
if (buf[i] > *max) *max = buf[i];
}
} else if (bitpix == -64) {
double *buf = (double *)a;
for (i=0; i < npts; i++) {
if (buf[i] < *min) *min = buf[i];
if (buf[i] > *max) *max = buf[i];
}
}
}
/* STRPAK -- Convert ASCII string from SPP char per short to C char per byte
*/
strpak (in, out, len)
char *in, *out;
int len;
{
int i, j;
/* adaptive byte selection (whichever byte order) chars alternate
* with \0
*/
if ( in[0] == '\0' )
j = 1;
else
j = 0;
for ( i = 0; i < len; i++, j += 2 )
out[i] = in[j];
out[i] = '\0';
}
/* FLIP -- Reverse order of lines in image. We do this as a separate step
* rather than when reading so the sampling grid for zscale is the same as
* for DISPLAY, even though the pixels are stored "flipped" in the pixfile.
*/
flip (buffer, nx, ny)
uchar *buffer;
int nx, ny;
{
int i;
register int j, v;
register uchar *buff1, *buff2;
for (i = 0; i < ny / 2; i++) {
buff1 = &buffer[i*nx];
buff2 = &buffer[(ny-1-i)*nx];
for (j = 0; j < nx; j++) {
v = *buff1;
*(buff1++) = *buff2;
*(buff2++) = v;
}
}
}
|
the_stack_data/170452691.c | /*
* Copyright (c) 2017, 2018, Oracle and/or its affiliates.
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors may be used to
* endorse or promote products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdlib.h>
#include <stdio.h>
struct element {
int val;
struct element *next;
};
void insert(struct element *head, int val) {
struct element *ptr = (struct element *)malloc(sizeof(struct element));
ptr->next = 0;
ptr->next = NULL;
struct element *cur = head;
while (cur->next != NULL) {
cur = cur->next;
}
cur->next = ptr;
ptr->val = val;
}
int sum(struct element *head) {
int sum = 0;
while (head != NULL) {
sum += head->val;
head = head->next;
}
return sum;
}
int main() {
struct element *head = (struct element *)malloc(sizeof(struct element));
head->val = 0;
head->next = NULL;
insert(head, 3);
insert(head, 7);
insert(head, 8);
insert(head, -2);
insert(head, -4);
insert(head, 13);
insert(head, 2);
int result = sum(head);
return result;
}
|
the_stack_data/76632.c | #include <stdio.h>
#include <stdlib.h>
int main()
{
int num, *arr, i;
scanf("%d", &num);
arr = (int*) malloc(num * sizeof(int));
for(i = 0; i < num; i++) {
scanf("%d", arr + i);
}
/* Write the logic to reverse the array. */
int mid = num / 2, temp;
for (i = 0; i < mid; i++) {
temp = arr[i];
arr[i] = arr[num - i - 1];
arr[num - i - 1] = temp;
}
for(i = 0; i < num; i++)
printf("%d ", *(arr + i));
return 0;
}
|
the_stack_data/9073.c | /* http://www.muppetlabs.com/~breadbox/software/elfkickers.html */
/* sstrip: Copyright (C) 1999-2001 by Brian Raiter, under the GNU
* General Public License. No warranty. See COPYING for details.
*
* Aug 23, 2004 Hacked by Manuel Novoa III <[email protected]> to
* handle targets of different endianness and/or elf class, making
* it more useful in a cross-devel environment.
*/
/* ============== original README ===================
*
* sstrip is a small utility that removes the contents at the end of an
* ELF file that are not part of the program's memory image.
*
* Most ELF executables are built with both a program header table and a
* section header table. However, only the former is required in order
* for the OS to load, link and execute a program. sstrip attempts to
* extract the ELF header, the program header table, and its contents,
* leaving everything else in the bit bucket. It can only remove parts of
* the file that occur at the end, after the parts to be saved. However,
* this almost always includes the section header table, and occasionally
* a few random sections that are not used when running a program.
*
* It should be noted that the GNU bfd library is (understandably)
* dependent on the section header table as an index to the file's
* contents. Thus, an executable file that has no section header table
* cannot be used with gdb, objdump, or any other program based upon the
* bfd library, at all. In fact, the program will not even recognize the
* file as a valid executable. (This limitation is noted in the source
* code comments for bfd, and is marked "FIXME", so this may change at
* some future date. However, I would imagine that it is a pretty
* low-priority item, as executables without a section header table are
* rare in the extreme.) This probably also explains why strip doesn't
* offer the option to do this.
*
* Shared library files may also have their section header table removed.
* Such a library will still function; however, it will no longer be
* possible for a compiler to link a new program against it.
*
* As an added bonus, sstrip also tries to removes trailing zero bytes
* from the end of the file. (This normally cannot be done with an
* executable that has a section header table.)
*
* sstrip is a very simplistic program. It depends upon the common
* practice of putting the parts of the file that contribute to the
* memory image at the front, and the remaining material at the end. This
* permits it to discard the latter material without affecting file
* offsets and memory addresses in what remains. Of course, the ELF
* standard permits files to be organized in almost any order, so if a
* pathological linker decided to put its section headers at the top,
* sstrip would be useless on such executables.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <elf.h>
/*farisey*/
#include <byteswap.h>
#ifndef TRUE
#define TRUE 1
#define FALSE 0
#endif
/* The name of the program.
*/
static char const *progname;
/* The name of the current file.
*/
static char const *filename;
/* A simple error-handling function. FALSE is always returned for the
* convenience of the caller.
*/
static int err(char const *errmsg)
{
fprintf(stderr, "%s: %s: %s\n", progname, filename, errmsg);
return FALSE;
}
/* A flag to signal the need for endian reversal.
*/
static int do_reverse_endian;
/* Get a value from the elf header, compensating for endianness.
*/
#define EGET(X) \
(__extension__ ({ \
uint64_t __res; \
if (!do_reverse_endian) { \
__res = (X); \
} else if (sizeof(X) == 1) { \
__res = (X); \
} else if (sizeof(X) == 2) { \
__res = bswap_16((X)); \
} else if (sizeof(X) == 4) { \
__res = bswap_32((X)); \
} else if (sizeof(X) == 8) { \
__res = bswap_64((X)); \
} else { \
fprintf(stderr, "%s: %s: EGET failed for size %d\n", \
progname, filename, (int)sizeof(X)); \
exit(EXIT_FAILURE); \
} \
__res; \
}))
/* Set a value 'Y' in the elf header to 'X', compensating for endianness.
*/
#define ESET(Y,X) \
do if (!do_reverse_endian) { \
Y = (X); \
} else if (sizeof(Y) == 1) { \
Y = (X); \
} else if (sizeof(Y) == 2) { \
Y = bswap_16((uint16_t)(X)); \
} else if (sizeof(Y) == 4) { \
Y = bswap_32((uint32_t)(X)); \
} else if (sizeof(Y) == 8) { \
Y = bswap_64((uint64_t)(X)); \
} else { \
fprintf(stderr, "%s: %s: ESET failed for size %d\n", \
progname, filename, (int)sizeof(Y)); \
exit(EXIT_FAILURE); \
} while (0)
/* A macro for I/O errors: The given error message is used only when
* errno is not set.
*/
#define ferr(msg) (err(errno ? strerror(errno) : (msg)))
#define HEADER_FUNCTIONS(CLASS) \
\
/* readelfheader() reads the ELF header into our global variable, and \
* checks to make sure that this is in fact a file that we should be \
* munging. \
*/ \
static int readelfheader ## CLASS (int fd, Elf ## CLASS ## _Ehdr *ehdr) \
{ \
if (read(fd, ((char *)ehdr)+EI_NIDENT, sizeof(*ehdr) - EI_NIDENT) \
!= sizeof(*ehdr) - EI_NIDENT) \
return ferr("missing or incomplete ELF header."); \
\
/* Verify the sizes of the ELF header and the program segment \
* header table entries. \
*/ \
if (EGET(ehdr->e_ehsize) != sizeof(Elf ## CLASS ## _Ehdr)) \
return err("unrecognized ELF header size."); \
if (EGET(ehdr->e_phentsize) != sizeof(Elf ## CLASS ## _Phdr)) \
return err("unrecognized program segment header size."); \
\
/* Finally, check the file type. \
*/ \
if (EGET(ehdr->e_type) != ET_EXEC && EGET(ehdr->e_type) != ET_DYN) \
return err("not an executable or shared-object library."); \
\
return TRUE; \
} \
\
/* readphdrtable() loads the program segment header table into memory. \
*/ \
static int readphdrtable ## CLASS (int fd, Elf ## CLASS ## _Ehdr const *ehdr, \
Elf ## CLASS ## _Phdr **phdrs) \
{ \
size_t size; \
\
if (!EGET(ehdr->e_phoff) || !EGET(ehdr->e_phnum) \
) return err("ELF file has no program header table."); \
\
size = EGET(ehdr->e_phnum) * sizeof **phdrs; \
if (!(*phdrs = malloc(size))) \
return err("Out of memory!"); \
\
errno = 0; \
if (read(fd, *phdrs, size) != (ssize_t)size) \
return ferr("missing or incomplete program segment header table."); \
\
return TRUE; \
} \
\
/* getmemorysize() determines the offset of the last byte of the file \
* that is referenced by an entry in the program segment header table. \
* (Anything in the file after that point is not used when the program \
* is executing, and thus can be safely discarded.) \
*/ \
static int getmemorysize ## CLASS (Elf ## CLASS ## _Ehdr const *ehdr, \
Elf ## CLASS ## _Phdr const *phdrs, \
unsigned long *newsize) \
{ \
Elf ## CLASS ## _Phdr const *phdr; \
unsigned long size, n; \
int i; \
\
/* Start by setting the size to include the ELF header and the \
* complete program segment header table. \
*/ \
size = EGET(ehdr->e_phoff) + EGET(ehdr->e_phnum) * sizeof *phdrs; \
if (size < sizeof *ehdr) \
size = sizeof *ehdr; \
\
/* Then keep extending the size to include whatever data the \
* program segment header table references. \
*/ \
for (i = 0, phdr = phdrs ; i < EGET(ehdr->e_phnum) ; ++i, ++phdr) { \
if (EGET(phdr->p_type) != PT_NULL) { \
n = EGET(phdr->p_offset) + EGET(phdr->p_filesz); \
if (n > size) \
size = n; \
} \
} \
\
*newsize = size; \
return TRUE; \
} \
\
/* modifyheaders() removes references to the section header table if \
* it was stripped, and reduces program header table entries that \
* included truncated bytes at the end of the file. \
*/ \
static int modifyheaders ## CLASS (Elf ## CLASS ## _Ehdr *ehdr, \
Elf ## CLASS ## _Phdr *phdrs, \
unsigned long newsize) \
{ \
Elf ## CLASS ## _Phdr *phdr; \
int i; \
\
/* If the section header table is gone, then remove all references \
* to it in the ELF header. \
*/ \
if (EGET(ehdr->e_shoff) >= newsize) { \
ESET(ehdr->e_shoff,0); \
ESET(ehdr->e_shnum,0); \
ESET(ehdr->e_shentsize,0); \
ESET(ehdr->e_shstrndx,0); \
} \
\
/* The program adjusts the file size of any segment that was \
* truncated. The case of a segment being completely stripped out \
* is handled separately. \
*/ \
for (i = 0, phdr = phdrs ; i < EGET(ehdr->e_phnum) ; ++i, ++phdr) { \
if (EGET(phdr->p_offset) >= newsize) { \
ESET(phdr->p_offset,newsize); \
ESET(phdr->p_filesz,0); \
} else if (EGET(phdr->p_offset) + EGET(phdr->p_filesz) > newsize) { \
ESET(phdr->p_filesz, newsize - EGET(phdr->p_offset)); \
} \
} \
\
return TRUE; \
} \
\
/* commitchanges() writes the new headers back to the original file \
* and sets the file to its new size. \
*/ \
static int commitchanges ## CLASS (int fd, Elf ## CLASS ## _Ehdr const *ehdr, \
Elf ## CLASS ## _Phdr *phdrs, \
unsigned long newsize) \
{ \
size_t n; \
\
/* Save the changes to the ELF header, if any. \
*/ \
if (lseek(fd, 0, SEEK_SET)) \
return ferr("could not rewind file"); \
errno = 0; \
if (write(fd, ehdr, sizeof *ehdr) != sizeof *ehdr) \
return err("could not modify file"); \
\
/* Save the changes to the program segment header table, if any. \
*/ \
if (lseek(fd, EGET(ehdr->e_phoff), SEEK_SET) == (off_t)-1) { \
err("could not seek in file."); \
goto warning; \
} \
n = EGET(ehdr->e_phnum) * sizeof *phdrs; \
if (write(fd, phdrs, n) != (ssize_t)n) { \
err("could not write to file"); \
goto warning; \
} \
\
/* Eleventh-hour sanity check: don't truncate before the end of \
* the program segment header table. \
*/ \
if (newsize < EGET(ehdr->e_phoff) + n) \
newsize = EGET(ehdr->e_phoff) + n; \
\
/* Chop off the end of the file. \
*/ \
if (ftruncate(fd, newsize)) { \
err("could not resize file"); \
goto warning; \
} \
\
return TRUE; \
\
warning: \
return err("ELF file may have been corrupted!"); \
}
/* First elements of Elf32_Ehdr and Elf64_Ehdr are common.
*/
static int readelfheaderident(int fd, Elf32_Ehdr *ehdr)
{
errno = 0;
if (read(fd, ehdr, EI_NIDENT) != EI_NIDENT)
return ferr("missing or incomplete ELF header.");
/* Check the ELF signature.
*/
if (!(ehdr->e_ident[EI_MAG0] == ELFMAG0 &&
ehdr->e_ident[EI_MAG1] == ELFMAG1 &&
ehdr->e_ident[EI_MAG2] == ELFMAG2 &&
ehdr->e_ident[EI_MAG3] == ELFMAG3))
{
err("missing ELF signature.");
return -1;
}
/* Compare the file's class and endianness with the program's.
*/
#if __BYTE_ORDER == __LITTLE_ENDIAN
if (ehdr->e_ident[EI_DATA] == ELFDATA2LSB) {
do_reverse_endian = 0;
} else if (ehdr->e_ident[EI_DATA] == ELFDATA2MSB) {
/* fprintf(stderr, "ELF file has different endianness.\n"); */
do_reverse_endian = 1;
}
#elif __BYTE_ORDER == __BIG_ENDIAN
if (ehdr->e_ident[EI_DATA] == ELFDATA2LSB) {
/* fprintf(stderr, "ELF file has different endianness.\n"); */
do_reverse_endian = 1;
} else if (ehdr->e_ident[EI_DATA] == ELFDATA2MSB) {
do_reverse_endian = 0;
}
#else
#error unkown endianness
#endif
else {
err("Unsupported endianness");
return -1;
}
/* Check the target architecture.
*/
/* if (EGET(ehdr->e_machine) != ELF_ARCH) { */
/* /\* return err("ELF file created for different architecture."); *\/ */
/* fprintf(stderr, "ELF file created for different architecture.\n"); */
/* } */
return ehdr->e_ident[EI_CLASS];
}
HEADER_FUNCTIONS(32)
HEADER_FUNCTIONS(64)
/* truncatezeros() examines the bytes at the end of the file's
* size-to-be, and reduces the size to exclude any trailing zero
* bytes.
*/
static int truncatezeros(int fd, unsigned long *newsize)
{
unsigned char contents[1024];
unsigned long size, n;
size = *newsize;
do {
n = sizeof contents;
if (n > size)
n = size;
if (lseek(fd, size - n, SEEK_SET) == (off_t)-1)
return ferr("cannot seek in file.");
if (read(fd, contents, n) != (ssize_t)n)
return ferr("cannot read file contents");
while (n && !contents[--n])
--size;
} while (size && !n);
/* Sanity check.
*/
if (!size)
return err("ELF file is completely blank!");
*newsize = size;
return TRUE;
}
/* main() loops over the cmdline arguments, leaving all the real work
* to the other functions.
*/
int main(int argc, char *argv[])
{
int fd;
union {
Elf32_Ehdr ehdr32;
Elf64_Ehdr ehdr64;
} e;
union {
Elf32_Phdr *phdrs32;
Elf64_Phdr *phdrs64;
} p;
unsigned long newsize;
char **arg;
int failures = 0;
if (argc < 2 || argv[1][0] == '-') {
printf("Usage: sstrip FILE...\n"
"sstrip discards all nonessential bytes from an executable.\n\n"
"Version 2.0-X Copyright (C) 2000,2001 Brian Raiter.\n"
"Cross-devel hacks Copyright (C) 2004 Manuel Novoa III.\n"
"This program is free software, licensed under the GNU\n"
"General Public License. There is absolutely no warranty.\n");
return EXIT_SUCCESS;
}
progname = argv[0];
for (arg = argv + 1 ; *arg != NULL ; ++arg) {
filename = *arg;
fd = open(*arg, O_RDWR);
if (fd < 0) {
ferr("can't open");
++failures;
continue;
}
//farisey: memset to avoid warning: may be used uninitialized
memset(&p, 0, sizeof(p));
switch (readelfheaderident(fd, &e.ehdr32)) {
case ELFCLASS32:
if (!(readelfheader32(fd, &e.ehdr32) &&
readphdrtable32(fd, &e.ehdr32, &p.phdrs32) &&
getmemorysize32(&e.ehdr32, p.phdrs32, &newsize) &&
truncatezeros(fd, &newsize) &&
modifyheaders32(&e.ehdr32, p.phdrs32, newsize) &&
commitchanges32(fd, &e.ehdr32, p.phdrs32, newsize)))
++failures;
break;
case ELFCLASS64:
if (!(readelfheader64(fd, &e.ehdr64) &&
readphdrtable64(fd, &e.ehdr64, &p.phdrs64) &&
getmemorysize64(&e.ehdr64, p.phdrs64, &newsize) &&
truncatezeros(fd, &newsize) &&
modifyheaders64(&e.ehdr64, p.phdrs64, newsize) &&
commitchanges64(fd, &e.ehdr64, p.phdrs64, newsize)))
++failures;
break;
default:
++failures;
break;
}
close(fd);
}
return failures ? EXIT_FAILURE : EXIT_SUCCESS;
}
|
the_stack_data/40762876.c | #include <stdio.h>
void main() {
// imprime cabecalho do nosso jogo
printf("******************************************\n");
printf("* Bem vindo ao nosso jogo de adivinhação *\n");
printf("******************************************\n");
int numeroSecreto = 42;
int chute;
int tentativas = 1;
while(1) {
printf("Tentativa %d\n", tentativas);
printf("Qual é o seu chute? ");
scanf("%d", &chute);
printf("Seu chute foi %d\n", chute);
if(chute < 0) {
printf("Você não pode chutar números negativos!\n");
continue;
}
int acertou = (chute == numeroSecreto);
int maior = chute > numeroSecreto;
if(acertou) {
printf("Parabéns! Você acertou!\n");
printf("Jogue de novo, você é um bom jogador!\n");
break;
}
else if(maior) {
printf("Seu chute foi maior que o número secreto\n");
}
else {
printf("Seu chute foi menor que o número secreto\n");
}
tentativas++;
}
printf("Fim de jogo!\n");
printf("Você acertou em %d tentativas!\n", tentativas);
} |
the_stack_data/1127714.c | /* Example code for Exercises in C.
Based on an example from http://www.learn-c.org/en/Linked_lists
Copyright 2016 Allen Downey
License: Creative Commons Attribution-ShareAlike 3.0
*/
#include <stdio.h>
#include <stdlib.h>
typedef struct node {
int val;
struct node *next;
} Node;
/* Makes a new node structure.
*
* val: value to store in the node.
* next: pointer to the next node
*
* returns: pointer to a new node
*/
Node *make_node(int val, Node *next) {
Node *node = malloc(sizeof(Node));
node->val = val;
node->next = next;
return node;
}
/* Prints the values in a list.
*
* list: pointer to pointer to Node
*/
void print_list(Node **list) {
Node *current = *list;
printf("[ ");
while (current != NULL) {
printf("%d ", current->val);
current = current->next;
}
printf("]\n");
}
/* Removes and returns the first element of a list.
*
* list: pointer to pointer to Node
*
* returns: int or -1 if the list is empty
*/
int pop(Node **list) {
if (list != NULL){
Node *head = *list;
*list = (head->next);
return head->val;
}
return -1;
}
/* Adds a new element to the beginning of the list.
*
* list: pointer to pointer to Node
* val: value to add
*/
void push(Node **list, int val) {
Node *head = *list;
Node *new_node = make_node(val, head);
*list = new_node;
}
/* Removes the first element with the given value
*
* Frees the removed node.
*
* list: pointer to pointer to Node
* val: value to remove
*
* returns: number of nodes removed
*/
int remove_by_value(Node **list, int val) {
Node *head = *list;
while (head->next != NULL){
if (head->next->val == val){
Node* next_val = head->next;
head->next = head->next->next;
free(next_val);
return 1;
}
head = head->next;
}
return 0;
}
/* Reverses the elements of the list.
*
* Does not allocate or free nodes.
*
* list: pointer to pointer to Node
*/
void reverse(Node **list) {
Node *head = *list;
Node *next_node = NULL;
Node *prev_node = NULL;
while (head != NULL){
next_node = head->next;
head->next = prev_node;
prev_node = head;
head = next_node;
}
*list = prev_node;
}
int main() {
Node *head = make_node(1, NULL);
head->next = make_node(2, NULL);
head->next->next = make_node(3, NULL);
head->next->next->next = make_node(4, NULL);
Node **list = &head;
print_list(list);
int retval = pop(list);
print_list(list);
push(list, retval+10);
print_list(list);
remove_by_value(list, 3);
print_list(list);
remove_by_value(list, 7);
print_list(list);
reverse(list);
print_list(list);
}
|
the_stack_data/96374.c | // C11 static assert
#include <assert.h>
int main(void) {
static_assert(sizeof(long) == 8, "long is not 8 bytes on this platfrom");
return 0;
}
|
the_stack_data/62637587.c | /*
Aim: First Come First Serve CPU Scheduling
*/
#include <stdio.h>
int main()
{
printf("Enter the number of processes : ");
int n;
scanf("%d",&n);
int pid[10],at[10],bt[10],ct[10],tat[10],wt[10];
int i=0,j=0;
for(i=0;i<n;i++)
{
pid[i]=i+1;
printf("Enter the 'Arrival Time' and 'Burst Time' of Process no. : %d\n",(i+1));
scanf("%d",&at[i]);
scanf("%d",&bt[i]);
}
//arranging the processes in ascending order of arrival time
for( i=0;i<n;i++)
{
for( j=0;j<n-i-1;j++)
{
if(at[j]>at[j+1])
{
int temp=at[j];
at[j]=at[j+1];
at[j+1]=temp;
temp=bt[j];
bt[j]=bt[j+1];
bt[j+1]=temp;
temp=pid[j];
pid[j]=pid[j+1];
pid[j+1]=temp;
}
}
}
/*printing arranged processes
for (int i=0;i<n;i++)
{
printf("Arrival time of process : %d is ",(i+1));
printf("%d\n",at[i]);
printf("Burst time of process number : %d is ",(i+1));
printf("%d\n",bt[i]);
}*/
//computing completion time, tat, wt and average tat,wt
float avgtat=0.0f,avgwt=0.0f;
ct[0]=at[0]+bt[0];
tat[0]=ct[0]-at[0];
avgtat=tat[0];
wt[0]=tat[0]-bt[0];
avgwt=wt[0];
for( i=1;i<n;i++)
{
ct[i]=ct[i-1]+bt[i];
tat[i]=ct[i]-at[i];
avgtat+=tat[i];
wt[i]=tat[i]-bt[i];
avgwt+=wt[i];
}
avgtat/=n;
avgwt/=n;
//computing throughput
double tput=(double)n/(ct[n-1]-at[0]);
//arranging the processess in order of pid
for( i=0;i<n;i++)
{
for( j=0;j<n-i-1;j++)
{
if(pid[j]>pid[j+1])
{
int temp=at[j];
at[j]=at[j+1];
at[j+1]=temp;
temp=bt[j];
bt[j]=bt[j+1];
bt[j+1]=temp;
temp=pid[j];
pid[j]=pid[j+1];
pid[j+1]=temp;
temp=ct[j];
ct[j]=ct[j+1];
ct[j+1]=temp;
temp=wt[j];
wt[j]=wt[j+1];
wt[j+1]=temp;
temp=tat[j];
tat[j]=tat[j+1];
tat[j+1]=temp;
}
}
}
//printing calculated data
printf("\n\n");
printf("PID.\t\t A.T.\t\t B.T.\t\t C.T.\t\t T.A.T\t\t W.T.\n");
for( i=0;i<n;i++)
{
printf("%d\t\t %d\t\t %d\t\t %d\t\t %d\t\t %d\n",pid[i],at[i],bt[i],ct[i],tat[i],wt[i]);
}
printf("\n\n");
printf("Average Turn Around Time : %.2f\n",avgtat);
printf("Average Waiting Time : %.2f\n",avgwt);
printf("Through Put : %.2f",tput);
}
|
the_stack_data/170453519.c | # 1 "benchmarks/ds-07-impl1.c"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "/usr/include/stdc-predef.h" 1 3 4
# 1 "<command-line>" 2
# 1 "benchmarks/ds-07-impl1.c"
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 1
# 20 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h"
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/definitions.h" 1
# 132 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/definitions.h"
int X_SIZE_VALUE = 0;
int overflow_mode = 1;
int rounding_mode = 0;
# 155 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/definitions.h"
typedef struct {
double a[100];
int a_size;
double b[100];
int b_size;
double sample_time;
double a_uncertainty[100];
double b_uncertainty[100];
} digital_system;
typedef struct {
double A[4][4];
double B[4][4];
double C[4][4];
double D[4][4];
double states[4][4];
double outputs[4][4];
double inputs[4][4];
double K[4][4];
unsigned int nStates;
unsigned int nInputs;
unsigned int nOutputs;
} digital_system_state_space;
typedef struct {
int int_bits;
int frac_bits;
double max;
double min;
int default_realization;
double delta;
int scale;
double max_error;
} implementation;
typedef struct {
int push;
int in;
int sbiw;
int cli;
int out;
int std;
int ldd;
int subi;
int sbci;
int lsl;
int rol;
int add;
int adc;
int adiw;
int rjmp;
int mov;
int sbc;
int ld;
int rcall;
int cp;
int cpc;
int ldi;
int brge;
int pop;
int ret;
int st;
int brlt;
int cpi;
} instructions;
typedef struct {
long clock;
int device;
double cycle;
instructions assembly;
} hardware;
typedef struct{
float Ap, Ar, Ac;
float wp, wc, wr;
int type;
}filter_parameters;
# 21 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h" 1
# 17 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h"
# 1 "/usr/include/stdlib.h" 1 3 4
# 25 "/usr/include/stdlib.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/libc-header-start.h" 1 3 4
# 33 "/usr/include/x86_64-linux-gnu/bits/libc-header-start.h" 3 4
# 1 "/usr/include/features.h" 1 3 4
# 461 "/usr/include/features.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/sys/cdefs.h" 1 3 4
# 452 "/usr/include/x86_64-linux-gnu/sys/cdefs.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/wordsize.h" 1 3 4
# 453 "/usr/include/x86_64-linux-gnu/sys/cdefs.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/long-double.h" 1 3 4
# 454 "/usr/include/x86_64-linux-gnu/sys/cdefs.h" 2 3 4
# 462 "/usr/include/features.h" 2 3 4
# 485 "/usr/include/features.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/gnu/stubs.h" 1 3 4
# 10 "/usr/include/x86_64-linux-gnu/gnu/stubs.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/gnu/stubs-64.h" 1 3 4
# 11 "/usr/include/x86_64-linux-gnu/gnu/stubs.h" 2 3 4
# 486 "/usr/include/features.h" 2 3 4
# 34 "/usr/include/x86_64-linux-gnu/bits/libc-header-start.h" 2 3 4
# 26 "/usr/include/stdlib.h" 2 3 4
# 1 "/usr/lib/gcc/x86_64-linux-gnu/9/include/stddef.h" 1 3 4
# 209 "/usr/lib/gcc/x86_64-linux-gnu/9/include/stddef.h" 3 4
# 209 "/usr/lib/gcc/x86_64-linux-gnu/9/include/stddef.h" 3 4
typedef long unsigned int size_t;
# 321 "/usr/lib/gcc/x86_64-linux-gnu/9/include/stddef.h" 3 4
typedef int wchar_t;
# 32 "/usr/include/stdlib.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/waitflags.h" 1 3 4
# 52 "/usr/include/x86_64-linux-gnu/bits/waitflags.h" 3 4
typedef enum
{
P_ALL,
P_PID,
P_PGID
} idtype_t;
# 40 "/usr/include/stdlib.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/waitstatus.h" 1 3 4
# 41 "/usr/include/stdlib.h" 2 3 4
# 55 "/usr/include/stdlib.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/floatn.h" 1 3 4
# 120 "/usr/include/x86_64-linux-gnu/bits/floatn.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/floatn-common.h" 1 3 4
# 24 "/usr/include/x86_64-linux-gnu/bits/floatn-common.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/long-double.h" 1 3 4
# 25 "/usr/include/x86_64-linux-gnu/bits/floatn-common.h" 2 3 4
# 121 "/usr/include/x86_64-linux-gnu/bits/floatn.h" 2 3 4
# 56 "/usr/include/stdlib.h" 2 3 4
typedef struct
{
int quot;
int rem;
} div_t;
typedef struct
{
long int quot;
long int rem;
} ldiv_t;
__extension__ typedef struct
{
long long int quot;
long long int rem;
} lldiv_t;
# 97 "/usr/include/stdlib.h" 3 4
extern size_t __ctype_get_mb_cur_max (void) __attribute__ ((__nothrow__ , __leaf__)) ;
extern double atof (const char *__nptr)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))) ;
extern int atoi (const char *__nptr)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))) ;
extern long int atol (const char *__nptr)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))) ;
__extension__ extern long long int atoll (const char *__nptr)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))) ;
extern double strtod (const char *__restrict __nptr,
char **__restrict __endptr)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
extern float strtof (const char *__restrict __nptr,
char **__restrict __endptr) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
extern long double strtold (const char *__restrict __nptr,
char **__restrict __endptr)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
# 176 "/usr/include/stdlib.h" 3 4
extern long int strtol (const char *__restrict __nptr,
char **__restrict __endptr, int __base)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
extern unsigned long int strtoul (const char *__restrict __nptr,
char **__restrict __endptr, int __base)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
__extension__
extern long long int strtoq (const char *__restrict __nptr,
char **__restrict __endptr, int __base)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
__extension__
extern unsigned long long int strtouq (const char *__restrict __nptr,
char **__restrict __endptr, int __base)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
__extension__
extern long long int strtoll (const char *__restrict __nptr,
char **__restrict __endptr, int __base)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
__extension__
extern unsigned long long int strtoull (const char *__restrict __nptr,
char **__restrict __endptr, int __base)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
# 385 "/usr/include/stdlib.h" 3 4
extern char *l64a (long int __n) __attribute__ ((__nothrow__ , __leaf__)) ;
extern long int a64l (const char *__s)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__pure__)) __attribute__ ((__nonnull__ (1))) ;
# 1 "/usr/include/x86_64-linux-gnu/sys/types.h" 1 3 4
# 27 "/usr/include/x86_64-linux-gnu/sys/types.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/types.h" 1 3 4
# 27 "/usr/include/x86_64-linux-gnu/bits/types.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/wordsize.h" 1 3 4
# 28 "/usr/include/x86_64-linux-gnu/bits/types.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/timesize.h" 1 3 4
# 29 "/usr/include/x86_64-linux-gnu/bits/types.h" 2 3 4
typedef unsigned char __u_char;
typedef unsigned short int __u_short;
typedef unsigned int __u_int;
typedef unsigned long int __u_long;
typedef signed char __int8_t;
typedef unsigned char __uint8_t;
typedef signed short int __int16_t;
typedef unsigned short int __uint16_t;
typedef signed int __int32_t;
typedef unsigned int __uint32_t;
typedef signed long int __int64_t;
typedef unsigned long int __uint64_t;
typedef __int8_t __int_least8_t;
typedef __uint8_t __uint_least8_t;
typedef __int16_t __int_least16_t;
typedef __uint16_t __uint_least16_t;
typedef __int32_t __int_least32_t;
typedef __uint32_t __uint_least32_t;
typedef __int64_t __int_least64_t;
typedef __uint64_t __uint_least64_t;
typedef long int __quad_t;
typedef unsigned long int __u_quad_t;
typedef long int __intmax_t;
typedef unsigned long int __uintmax_t;
# 141 "/usr/include/x86_64-linux-gnu/bits/types.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/typesizes.h" 1 3 4
# 142 "/usr/include/x86_64-linux-gnu/bits/types.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/time64.h" 1 3 4
# 143 "/usr/include/x86_64-linux-gnu/bits/types.h" 2 3 4
typedef unsigned long int __dev_t;
typedef unsigned int __uid_t;
typedef unsigned int __gid_t;
typedef unsigned long int __ino_t;
typedef unsigned long int __ino64_t;
typedef unsigned int __mode_t;
typedef unsigned long int __nlink_t;
typedef long int __off_t;
typedef long int __off64_t;
typedef int __pid_t;
typedef struct { int __val[2]; } __fsid_t;
typedef long int __clock_t;
typedef unsigned long int __rlim_t;
typedef unsigned long int __rlim64_t;
typedef unsigned int __id_t;
typedef long int __time_t;
typedef unsigned int __useconds_t;
typedef long int __suseconds_t;
typedef int __daddr_t;
typedef int __key_t;
typedef int __clockid_t;
typedef void * __timer_t;
typedef long int __blksize_t;
typedef long int __blkcnt_t;
typedef long int __blkcnt64_t;
typedef unsigned long int __fsblkcnt_t;
typedef unsigned long int __fsblkcnt64_t;
typedef unsigned long int __fsfilcnt_t;
typedef unsigned long int __fsfilcnt64_t;
typedef long int __fsword_t;
typedef long int __ssize_t;
typedef long int __syscall_slong_t;
typedef unsigned long int __syscall_ulong_t;
typedef __off64_t __loff_t;
typedef char *__caddr_t;
typedef long int __intptr_t;
typedef unsigned int __socklen_t;
typedef int __sig_atomic_t;
# 30 "/usr/include/x86_64-linux-gnu/sys/types.h" 2 3 4
typedef __u_char u_char;
typedef __u_short u_short;
typedef __u_int u_int;
typedef __u_long u_long;
typedef __quad_t quad_t;
typedef __u_quad_t u_quad_t;
typedef __fsid_t fsid_t;
typedef __loff_t loff_t;
typedef __ino_t ino_t;
# 59 "/usr/include/x86_64-linux-gnu/sys/types.h" 3 4
typedef __dev_t dev_t;
typedef __gid_t gid_t;
typedef __mode_t mode_t;
typedef __nlink_t nlink_t;
typedef __uid_t uid_t;
typedef __off_t off_t;
# 97 "/usr/include/x86_64-linux-gnu/sys/types.h" 3 4
typedef __pid_t pid_t;
typedef __id_t id_t;
typedef __ssize_t ssize_t;
typedef __daddr_t daddr_t;
typedef __caddr_t caddr_t;
typedef __key_t key_t;
# 1 "/usr/include/x86_64-linux-gnu/bits/types/clock_t.h" 1 3 4
typedef __clock_t clock_t;
# 127 "/usr/include/x86_64-linux-gnu/sys/types.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/types/clockid_t.h" 1 3 4
typedef __clockid_t clockid_t;
# 129 "/usr/include/x86_64-linux-gnu/sys/types.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/types/time_t.h" 1 3 4
typedef __time_t time_t;
# 130 "/usr/include/x86_64-linux-gnu/sys/types.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/types/timer_t.h" 1 3 4
typedef __timer_t timer_t;
# 131 "/usr/include/x86_64-linux-gnu/sys/types.h" 2 3 4
# 144 "/usr/include/x86_64-linux-gnu/sys/types.h" 3 4
# 1 "/usr/lib/gcc/x86_64-linux-gnu/9/include/stddef.h" 1 3 4
# 145 "/usr/include/x86_64-linux-gnu/sys/types.h" 2 3 4
typedef unsigned long int ulong;
typedef unsigned short int ushort;
typedef unsigned int uint;
# 1 "/usr/include/x86_64-linux-gnu/bits/stdint-intn.h" 1 3 4
# 24 "/usr/include/x86_64-linux-gnu/bits/stdint-intn.h" 3 4
typedef __int8_t int8_t;
typedef __int16_t int16_t;
typedef __int32_t int32_t;
typedef __int64_t int64_t;
# 156 "/usr/include/x86_64-linux-gnu/sys/types.h" 2 3 4
typedef __uint8_t u_int8_t;
typedef __uint16_t u_int16_t;
typedef __uint32_t u_int32_t;
typedef __uint64_t u_int64_t;
typedef int register_t __attribute__ ((__mode__ (__word__)));
# 176 "/usr/include/x86_64-linux-gnu/sys/types.h" 3 4
# 1 "/usr/include/endian.h" 1 3 4
# 24 "/usr/include/endian.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/endian.h" 1 3 4
# 35 "/usr/include/x86_64-linux-gnu/bits/endian.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/endianness.h" 1 3 4
# 36 "/usr/include/x86_64-linux-gnu/bits/endian.h" 2 3 4
# 25 "/usr/include/endian.h" 2 3 4
# 35 "/usr/include/endian.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/byteswap.h" 1 3 4
# 33 "/usr/include/x86_64-linux-gnu/bits/byteswap.h" 3 4
static __inline __uint16_t
__bswap_16 (__uint16_t __bsx)
{
return __builtin_bswap16 (__bsx);
}
static __inline __uint32_t
__bswap_32 (__uint32_t __bsx)
{
return __builtin_bswap32 (__bsx);
}
# 69 "/usr/include/x86_64-linux-gnu/bits/byteswap.h" 3 4
__extension__ static __inline __uint64_t
__bswap_64 (__uint64_t __bsx)
{
return __builtin_bswap64 (__bsx);
}
# 36 "/usr/include/endian.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/uintn-identity.h" 1 3 4
# 32 "/usr/include/x86_64-linux-gnu/bits/uintn-identity.h" 3 4
static __inline __uint16_t
__uint16_identity (__uint16_t __x)
{
return __x;
}
static __inline __uint32_t
__uint32_identity (__uint32_t __x)
{
return __x;
}
static __inline __uint64_t
__uint64_identity (__uint64_t __x)
{
return __x;
}
# 37 "/usr/include/endian.h" 2 3 4
# 177 "/usr/include/x86_64-linux-gnu/sys/types.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/sys/select.h" 1 3 4
# 30 "/usr/include/x86_64-linux-gnu/sys/select.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/select.h" 1 3 4
# 22 "/usr/include/x86_64-linux-gnu/bits/select.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/wordsize.h" 1 3 4
# 23 "/usr/include/x86_64-linux-gnu/bits/select.h" 2 3 4
# 31 "/usr/include/x86_64-linux-gnu/sys/select.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/types/sigset_t.h" 1 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/types/__sigset_t.h" 1 3 4
typedef struct
{
unsigned long int __val[(1024 / (8 * sizeof (unsigned long int)))];
} __sigset_t;
# 5 "/usr/include/x86_64-linux-gnu/bits/types/sigset_t.h" 2 3 4
typedef __sigset_t sigset_t;
# 34 "/usr/include/x86_64-linux-gnu/sys/select.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/types/struct_timeval.h" 1 3 4
struct timeval
{
__time_t tv_sec;
__suseconds_t tv_usec;
};
# 38 "/usr/include/x86_64-linux-gnu/sys/select.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h" 1 3 4
# 10 "/usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h" 3 4
struct timespec
{
__time_t tv_sec;
__syscall_slong_t tv_nsec;
# 26 "/usr/include/x86_64-linux-gnu/bits/types/struct_timespec.h" 3 4
};
# 40 "/usr/include/x86_64-linux-gnu/sys/select.h" 2 3 4
typedef __suseconds_t suseconds_t;
typedef long int __fd_mask;
# 59 "/usr/include/x86_64-linux-gnu/sys/select.h" 3 4
typedef struct
{
__fd_mask __fds_bits[1024 / (8 * (int) sizeof (__fd_mask))];
} fd_set;
typedef __fd_mask fd_mask;
# 91 "/usr/include/x86_64-linux-gnu/sys/select.h" 3 4
# 101 "/usr/include/x86_64-linux-gnu/sys/select.h" 3 4
extern int select (int __nfds, fd_set *__restrict __readfds,
fd_set *__restrict __writefds,
fd_set *__restrict __exceptfds,
struct timeval *__restrict __timeout);
# 113 "/usr/include/x86_64-linux-gnu/sys/select.h" 3 4
extern int pselect (int __nfds, fd_set *__restrict __readfds,
fd_set *__restrict __writefds,
fd_set *__restrict __exceptfds,
const struct timespec *__restrict __timeout,
const __sigset_t *__restrict __sigmask);
# 126 "/usr/include/x86_64-linux-gnu/sys/select.h" 3 4
# 180 "/usr/include/x86_64-linux-gnu/sys/types.h" 2 3 4
typedef __blksize_t blksize_t;
typedef __blkcnt_t blkcnt_t;
typedef __fsblkcnt_t fsblkcnt_t;
typedef __fsfilcnt_t fsfilcnt_t;
# 227 "/usr/include/x86_64-linux-gnu/sys/types.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h" 1 3 4
# 23 "/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/thread-shared-types.h" 1 3 4
# 44 "/usr/include/x86_64-linux-gnu/bits/thread-shared-types.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h" 1 3 4
# 21 "/usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/wordsize.h" 1 3 4
# 22 "/usr/include/x86_64-linux-gnu/bits/pthreadtypes-arch.h" 2 3 4
# 45 "/usr/include/x86_64-linux-gnu/bits/thread-shared-types.h" 2 3 4
typedef struct __pthread_internal_list
{
struct __pthread_internal_list *__prev;
struct __pthread_internal_list *__next;
} __pthread_list_t;
typedef struct __pthread_internal_slist
{
struct __pthread_internal_slist *__next;
} __pthread_slist_t;
# 74 "/usr/include/x86_64-linux-gnu/bits/thread-shared-types.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/struct_mutex.h" 1 3 4
# 22 "/usr/include/x86_64-linux-gnu/bits/struct_mutex.h" 3 4
struct __pthread_mutex_s
{
int __lock;
unsigned int __count;
int __owner;
unsigned int __nusers;
int __kind;
short __spins;
short __elision;
__pthread_list_t __list;
# 53 "/usr/include/x86_64-linux-gnu/bits/struct_mutex.h" 3 4
};
# 75 "/usr/include/x86_64-linux-gnu/bits/thread-shared-types.h" 2 3 4
# 87 "/usr/include/x86_64-linux-gnu/bits/thread-shared-types.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/struct_rwlock.h" 1 3 4
# 23 "/usr/include/x86_64-linux-gnu/bits/struct_rwlock.h" 3 4
struct __pthread_rwlock_arch_t
{
unsigned int __readers;
unsigned int __writers;
unsigned int __wrphase_futex;
unsigned int __writers_futex;
unsigned int __pad3;
unsigned int __pad4;
int __cur_writer;
int __shared;
signed char __rwelision;
unsigned char __pad1[7];
unsigned long int __pad2;
unsigned int __flags;
# 55 "/usr/include/x86_64-linux-gnu/bits/struct_rwlock.h" 3 4
};
# 88 "/usr/include/x86_64-linux-gnu/bits/thread-shared-types.h" 2 3 4
struct __pthread_cond_s
{
__extension__ union
{
__extension__ unsigned long long int __wseq;
struct
{
unsigned int __low;
unsigned int __high;
} __wseq32;
};
__extension__ union
{
__extension__ unsigned long long int __g1_start;
struct
{
unsigned int __low;
unsigned int __high;
} __g1_start32;
};
unsigned int __g_refs[2] ;
unsigned int __g_size[2];
unsigned int __g1_orig_size;
unsigned int __wrefs;
unsigned int __g_signals[2];
};
# 24 "/usr/include/x86_64-linux-gnu/bits/pthreadtypes.h" 2 3 4
typedef unsigned long int pthread_t;
typedef union
{
char __size[4];
int __align;
} pthread_mutexattr_t;
typedef union
{
char __size[4];
int __align;
} pthread_condattr_t;
typedef unsigned int pthread_key_t;
typedef int pthread_once_t;
union pthread_attr_t
{
char __size[56];
long int __align;
};
typedef union pthread_attr_t pthread_attr_t;
typedef union
{
struct __pthread_mutex_s __data;
char __size[40];
long int __align;
} pthread_mutex_t;
typedef union
{
struct __pthread_cond_s __data;
char __size[48];
__extension__ long long int __align;
} pthread_cond_t;
typedef union
{
struct __pthread_rwlock_arch_t __data;
char __size[56];
long int __align;
} pthread_rwlock_t;
typedef union
{
char __size[8];
long int __align;
} pthread_rwlockattr_t;
typedef volatile int pthread_spinlock_t;
typedef union
{
char __size[32];
long int __align;
} pthread_barrier_t;
typedef union
{
char __size[4];
int __align;
} pthread_barrierattr_t;
# 228 "/usr/include/x86_64-linux-gnu/sys/types.h" 2 3 4
# 395 "/usr/include/stdlib.h" 2 3 4
extern long int random (void) __attribute__ ((__nothrow__ , __leaf__));
extern void srandom (unsigned int __seed) __attribute__ ((__nothrow__ , __leaf__));
extern char *initstate (unsigned int __seed, char *__statebuf,
size_t __statelen) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (2)));
extern char *setstate (char *__statebuf) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
struct random_data
{
int32_t *fptr;
int32_t *rptr;
int32_t *state;
int rand_type;
int rand_deg;
int rand_sep;
int32_t *end_ptr;
};
extern int random_r (struct random_data *__restrict __buf,
int32_t *__restrict __result) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
extern int srandom_r (unsigned int __seed, struct random_data *__buf)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (2)));
extern int initstate_r (unsigned int __seed, char *__restrict __statebuf,
size_t __statelen,
struct random_data *__restrict __buf)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (2, 4)));
extern int setstate_r (char *__restrict __statebuf,
struct random_data *__restrict __buf)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
extern int rand (void) __attribute__ ((__nothrow__ , __leaf__));
extern void srand (unsigned int __seed) __attribute__ ((__nothrow__ , __leaf__));
extern int rand_r (unsigned int *__seed) __attribute__ ((__nothrow__ , __leaf__));
extern double drand48 (void) __attribute__ ((__nothrow__ , __leaf__));
extern double erand48 (unsigned short int __xsubi[3]) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
extern long int lrand48 (void) __attribute__ ((__nothrow__ , __leaf__));
extern long int nrand48 (unsigned short int __xsubi[3])
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
extern long int mrand48 (void) __attribute__ ((__nothrow__ , __leaf__));
extern long int jrand48 (unsigned short int __xsubi[3])
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
extern void srand48 (long int __seedval) __attribute__ ((__nothrow__ , __leaf__));
extern unsigned short int *seed48 (unsigned short int __seed16v[3])
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
extern void lcong48 (unsigned short int __param[7]) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
struct drand48_data
{
unsigned short int __x[3];
unsigned short int __old_x[3];
unsigned short int __c;
unsigned short int __init;
__extension__ unsigned long long int __a;
};
extern int drand48_r (struct drand48_data *__restrict __buffer,
double *__restrict __result) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
extern int erand48_r (unsigned short int __xsubi[3],
struct drand48_data *__restrict __buffer,
double *__restrict __result) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
extern int lrand48_r (struct drand48_data *__restrict __buffer,
long int *__restrict __result)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
extern int nrand48_r (unsigned short int __xsubi[3],
struct drand48_data *__restrict __buffer,
long int *__restrict __result)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
extern int mrand48_r (struct drand48_data *__restrict __buffer,
long int *__restrict __result)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
extern int jrand48_r (unsigned short int __xsubi[3],
struct drand48_data *__restrict __buffer,
long int *__restrict __result)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
extern int srand48_r (long int __seedval, struct drand48_data *__buffer)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (2)));
extern int seed48_r (unsigned short int __seed16v[3],
struct drand48_data *__buffer) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
extern int lcong48_r (unsigned short int __param[7],
struct drand48_data *__buffer)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2)));
extern void *malloc (size_t __size) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__malloc__))
__attribute__ ((__alloc_size__ (1))) ;
extern void *calloc (size_t __nmemb, size_t __size)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__malloc__)) __attribute__ ((__alloc_size__ (1, 2))) ;
extern void *realloc (void *__ptr, size_t __size)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__warn_unused_result__)) __attribute__ ((__alloc_size__ (2)));
extern void *reallocarray (void *__ptr, size_t __nmemb, size_t __size)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__warn_unused_result__))
__attribute__ ((__alloc_size__ (2, 3)));
extern void free (void *__ptr) __attribute__ ((__nothrow__ , __leaf__));
# 1 "/usr/include/alloca.h" 1 3 4
# 24 "/usr/include/alloca.h" 3 4
# 1 "/usr/lib/gcc/x86_64-linux-gnu/9/include/stddef.h" 1 3 4
# 25 "/usr/include/alloca.h" 2 3 4
extern void *alloca (size_t __size) __attribute__ ((__nothrow__ , __leaf__));
# 569 "/usr/include/stdlib.h" 2 3 4
extern void *valloc (size_t __size) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__malloc__))
__attribute__ ((__alloc_size__ (1))) ;
extern int posix_memalign (void **__memptr, size_t __alignment, size_t __size)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1))) ;
extern void *aligned_alloc (size_t __alignment, size_t __size)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__malloc__)) __attribute__ ((__alloc_size__ (2))) ;
extern void abort (void) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));
extern int atexit (void (*__func) (void)) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
extern int at_quick_exit (void (*__func) (void)) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
extern int on_exit (void (*__func) (int __status, void *__arg), void *__arg)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
extern void exit (int __status) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));
extern void quick_exit (int __status) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));
extern void _Exit (int __status) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));
extern char *getenv (const char *__name) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1))) ;
# 647 "/usr/include/stdlib.h" 3 4
extern int putenv (char *__string) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
extern int setenv (const char *__name, const char *__value, int __replace)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (2)));
extern int unsetenv (const char *__name) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
extern int clearenv (void) __attribute__ ((__nothrow__ , __leaf__));
# 675 "/usr/include/stdlib.h" 3 4
extern char *mktemp (char *__template) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
# 688 "/usr/include/stdlib.h" 3 4
extern int mkstemp (char *__template) __attribute__ ((__nonnull__ (1))) ;
# 710 "/usr/include/stdlib.h" 3 4
extern int mkstemps (char *__template, int __suffixlen) __attribute__ ((__nonnull__ (1))) ;
# 731 "/usr/include/stdlib.h" 3 4
extern char *mkdtemp (char *__template) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1))) ;
# 784 "/usr/include/stdlib.h" 3 4
extern int system (const char *__command) ;
# 800 "/usr/include/stdlib.h" 3 4
extern char *realpath (const char *__restrict __name,
char *__restrict __resolved) __attribute__ ((__nothrow__ , __leaf__)) ;
typedef int (*__compar_fn_t) (const void *, const void *);
# 820 "/usr/include/stdlib.h" 3 4
extern void *bsearch (const void *__key, const void *__base,
size_t __nmemb, size_t __size, __compar_fn_t __compar)
__attribute__ ((__nonnull__ (1, 2, 5))) ;
extern void qsort (void *__base, size_t __nmemb, size_t __size,
__compar_fn_t __compar) __attribute__ ((__nonnull__ (1, 4)));
# 840 "/usr/include/stdlib.h" 3 4
extern int abs (int __x) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__const__)) ;
extern long int labs (long int __x) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__const__)) ;
__extension__ extern long long int llabs (long long int __x)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__const__)) ;
extern div_t div (int __numer, int __denom)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__const__)) ;
extern ldiv_t ldiv (long int __numer, long int __denom)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__const__)) ;
__extension__ extern lldiv_t lldiv (long long int __numer,
long long int __denom)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__const__)) ;
# 872 "/usr/include/stdlib.h" 3 4
extern char *ecvt (double __value, int __ndigit, int *__restrict __decpt,
int *__restrict __sign) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (3, 4))) ;
extern char *fcvt (double __value, int __ndigit, int *__restrict __decpt,
int *__restrict __sign) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (3, 4))) ;
extern char *gcvt (double __value, int __ndigit, char *__buf)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (3))) ;
extern char *qecvt (long double __value, int __ndigit,
int *__restrict __decpt, int *__restrict __sign)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (3, 4))) ;
extern char *qfcvt (long double __value, int __ndigit,
int *__restrict __decpt, int *__restrict __sign)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (3, 4))) ;
extern char *qgcvt (long double __value, int __ndigit, char *__buf)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (3))) ;
extern int ecvt_r (double __value, int __ndigit, int *__restrict __decpt,
int *__restrict __sign, char *__restrict __buf,
size_t __len) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (3, 4, 5)));
extern int fcvt_r (double __value, int __ndigit, int *__restrict __decpt,
int *__restrict __sign, char *__restrict __buf,
size_t __len) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (3, 4, 5)));
extern int qecvt_r (long double __value, int __ndigit,
int *__restrict __decpt, int *__restrict __sign,
char *__restrict __buf, size_t __len)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (3, 4, 5)));
extern int qfcvt_r (long double __value, int __ndigit,
int *__restrict __decpt, int *__restrict __sign,
char *__restrict __buf, size_t __len)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (3, 4, 5)));
extern int mblen (const char *__s, size_t __n) __attribute__ ((__nothrow__ , __leaf__));
extern int mbtowc (wchar_t *__restrict __pwc,
const char *__restrict __s, size_t __n) __attribute__ ((__nothrow__ , __leaf__));
extern int wctomb (char *__s, wchar_t __wchar) __attribute__ ((__nothrow__ , __leaf__));
extern size_t mbstowcs (wchar_t *__restrict __pwcs,
const char *__restrict __s, size_t __n) __attribute__ ((__nothrow__ , __leaf__));
extern size_t wcstombs (char *__restrict __s,
const wchar_t *__restrict __pwcs, size_t __n)
__attribute__ ((__nothrow__ , __leaf__));
extern int rpmatch (const char *__response) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1))) ;
# 957 "/usr/include/stdlib.h" 3 4
extern int getsubopt (char **__restrict __optionp,
char *const *__restrict __tokens,
char **__restrict __valuep)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1, 2, 3))) ;
# 1003 "/usr/include/stdlib.h" 3 4
extern int getloadavg (double __loadavg[], int __nelem)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (1)));
# 1013 "/usr/include/stdlib.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/stdlib-float.h" 1 3 4
# 1014 "/usr/include/stdlib.h" 2 3 4
# 1023 "/usr/include/stdlib.h" 3 4
# 18 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h" 2
# 1 "/usr/include/assert.h" 1 3 4
# 66 "/usr/include/assert.h" 3 4
extern void __assert_fail (const char *__assertion, const char *__file,
unsigned int __line, const char *__function)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));
extern void __assert_perror_fail (int __errnum, const char *__file,
unsigned int __line, const char *__function)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));
extern void __assert (const char *__assertion, const char *__file, int __line)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__noreturn__));
# 19 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h" 2
# 1 "/usr/include/stdio.h" 1 3 4
# 27 "/usr/include/stdio.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/libc-header-start.h" 1 3 4
# 28 "/usr/include/stdio.h" 2 3 4
# 1 "/usr/lib/gcc/x86_64-linux-gnu/9/include/stddef.h" 1 3 4
# 34 "/usr/include/stdio.h" 2 3 4
# 1 "/usr/lib/gcc/x86_64-linux-gnu/9/include/stdarg.h" 1 3 4
# 40 "/usr/lib/gcc/x86_64-linux-gnu/9/include/stdarg.h" 3 4
typedef __builtin_va_list __gnuc_va_list;
# 37 "/usr/include/stdio.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/types/__fpos_t.h" 1 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/types/__mbstate_t.h" 1 3 4
# 13 "/usr/include/x86_64-linux-gnu/bits/types/__mbstate_t.h" 3 4
typedef struct
{
int __count;
union
{
unsigned int __wch;
char __wchb[4];
} __value;
} __mbstate_t;
# 6 "/usr/include/x86_64-linux-gnu/bits/types/__fpos_t.h" 2 3 4
typedef struct _G_fpos_t
{
__off_t __pos;
__mbstate_t __state;
} __fpos_t;
# 40 "/usr/include/stdio.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/types/__fpos64_t.h" 1 3 4
# 10 "/usr/include/x86_64-linux-gnu/bits/types/__fpos64_t.h" 3 4
typedef struct _G_fpos64_t
{
__off64_t __pos;
__mbstate_t __state;
} __fpos64_t;
# 41 "/usr/include/stdio.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/types/__FILE.h" 1 3 4
struct _IO_FILE;
typedef struct _IO_FILE __FILE;
# 42 "/usr/include/stdio.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/types/FILE.h" 1 3 4
struct _IO_FILE;
typedef struct _IO_FILE FILE;
# 43 "/usr/include/stdio.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/types/struct_FILE.h" 1 3 4
# 35 "/usr/include/x86_64-linux-gnu/bits/types/struct_FILE.h" 3 4
struct _IO_FILE;
struct _IO_marker;
struct _IO_codecvt;
struct _IO_wide_data;
typedef void _IO_lock_t;
struct _IO_FILE
{
int _flags;
char *_IO_read_ptr;
char *_IO_read_end;
char *_IO_read_base;
char *_IO_write_base;
char *_IO_write_ptr;
char *_IO_write_end;
char *_IO_buf_base;
char *_IO_buf_end;
char *_IO_save_base;
char *_IO_backup_base;
char *_IO_save_end;
struct _IO_marker *_markers;
struct _IO_FILE *_chain;
int _fileno;
int _flags2;
__off_t _old_offset;
unsigned short _cur_column;
signed char _vtable_offset;
char _shortbuf[1];
_IO_lock_t *_lock;
__off64_t _offset;
struct _IO_codecvt *_codecvt;
struct _IO_wide_data *_wide_data;
struct _IO_FILE *_freeres_list;
void *_freeres_buf;
size_t __pad5;
int _mode;
char _unused2[15 * sizeof (int) - 4 * sizeof (void *) - sizeof (size_t)];
};
# 44 "/usr/include/stdio.h" 2 3 4
# 52 "/usr/include/stdio.h" 3 4
typedef __gnuc_va_list va_list;
# 84 "/usr/include/stdio.h" 3 4
typedef __fpos_t fpos_t;
# 133 "/usr/include/stdio.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/stdio_lim.h" 1 3 4
# 134 "/usr/include/stdio.h" 2 3 4
extern FILE *stdin;
extern FILE *stdout;
extern FILE *stderr;
extern int remove (const char *__filename) __attribute__ ((__nothrow__ , __leaf__));
extern int rename (const char *__old, const char *__new) __attribute__ ((__nothrow__ , __leaf__));
extern int renameat (int __oldfd, const char *__old, int __newfd,
const char *__new) __attribute__ ((__nothrow__ , __leaf__));
# 173 "/usr/include/stdio.h" 3 4
extern FILE *tmpfile (void) ;
# 187 "/usr/include/stdio.h" 3 4
extern char *tmpnam (char *__s) __attribute__ ((__nothrow__ , __leaf__)) ;
extern char *tmpnam_r (char *__s) __attribute__ ((__nothrow__ , __leaf__)) ;
# 204 "/usr/include/stdio.h" 3 4
extern char *tempnam (const char *__dir, const char *__pfx)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__malloc__)) ;
extern int fclose (FILE *__stream);
extern int fflush (FILE *__stream);
# 227 "/usr/include/stdio.h" 3 4
extern int fflush_unlocked (FILE *__stream);
# 246 "/usr/include/stdio.h" 3 4
extern FILE *fopen (const char *__restrict __filename,
const char *__restrict __modes) ;
extern FILE *freopen (const char *__restrict __filename,
const char *__restrict __modes,
FILE *__restrict __stream) ;
# 279 "/usr/include/stdio.h" 3 4
extern FILE *fdopen (int __fd, const char *__modes) __attribute__ ((__nothrow__ , __leaf__)) ;
# 292 "/usr/include/stdio.h" 3 4
extern FILE *fmemopen (void *__s, size_t __len, const char *__modes)
__attribute__ ((__nothrow__ , __leaf__)) ;
extern FILE *open_memstream (char **__bufloc, size_t *__sizeloc) __attribute__ ((__nothrow__ , __leaf__)) ;
extern void setbuf (FILE *__restrict __stream, char *__restrict __buf) __attribute__ ((__nothrow__ , __leaf__));
extern int setvbuf (FILE *__restrict __stream, char *__restrict __buf,
int __modes, size_t __n) __attribute__ ((__nothrow__ , __leaf__));
extern void setbuffer (FILE *__restrict __stream, char *__restrict __buf,
size_t __size) __attribute__ ((__nothrow__ , __leaf__));
extern void setlinebuf (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__));
extern int fprintf (FILE *__restrict __stream,
const char *__restrict __format, ...);
extern int printf (const char *__restrict __format, ...);
extern int sprintf (char *__restrict __s,
const char *__restrict __format, ...) __attribute__ ((__nothrow__));
extern int vfprintf (FILE *__restrict __s, const char *__restrict __format,
__gnuc_va_list __arg);
extern int vprintf (const char *__restrict __format, __gnuc_va_list __arg);
extern int vsprintf (char *__restrict __s, const char *__restrict __format,
__gnuc_va_list __arg) __attribute__ ((__nothrow__));
extern int snprintf (char *__restrict __s, size_t __maxlen,
const char *__restrict __format, ...)
__attribute__ ((__nothrow__)) __attribute__ ((__format__ (__printf__, 3, 4)));
extern int vsnprintf (char *__restrict __s, size_t __maxlen,
const char *__restrict __format, __gnuc_va_list __arg)
__attribute__ ((__nothrow__)) __attribute__ ((__format__ (__printf__, 3, 0)));
# 379 "/usr/include/stdio.h" 3 4
extern int vdprintf (int __fd, const char *__restrict __fmt,
__gnuc_va_list __arg)
__attribute__ ((__format__ (__printf__, 2, 0)));
extern int dprintf (int __fd, const char *__restrict __fmt, ...)
__attribute__ ((__format__ (__printf__, 2, 3)));
extern int fscanf (FILE *__restrict __stream,
const char *__restrict __format, ...) ;
extern int scanf (const char *__restrict __format, ...) ;
extern int sscanf (const char *__restrict __s,
const char *__restrict __format, ...) __attribute__ ((__nothrow__ , __leaf__));
extern int fscanf (FILE *__restrict __stream, const char *__restrict __format, ...) __asm__ ("" "__isoc99_fscanf")
;
extern int scanf (const char *__restrict __format, ...) __asm__ ("" "__isoc99_scanf")
;
extern int sscanf (const char *__restrict __s, const char *__restrict __format, ...) __asm__ ("" "__isoc99_sscanf") __attribute__ ((__nothrow__ , __leaf__))
;
# 432 "/usr/include/stdio.h" 3 4
extern int vfscanf (FILE *__restrict __s, const char *__restrict __format,
__gnuc_va_list __arg)
__attribute__ ((__format__ (__scanf__, 2, 0))) ;
extern int vscanf (const char *__restrict __format, __gnuc_va_list __arg)
__attribute__ ((__format__ (__scanf__, 1, 0))) ;
extern int vsscanf (const char *__restrict __s,
const char *__restrict __format, __gnuc_va_list __arg)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__format__ (__scanf__, 2, 0)));
extern int vfscanf (FILE *__restrict __s, const char *__restrict __format, __gnuc_va_list __arg) __asm__ ("" "__isoc99_vfscanf")
__attribute__ ((__format__ (__scanf__, 2, 0))) ;
extern int vscanf (const char *__restrict __format, __gnuc_va_list __arg) __asm__ ("" "__isoc99_vscanf")
__attribute__ ((__format__ (__scanf__, 1, 0))) ;
extern int vsscanf (const char *__restrict __s, const char *__restrict __format, __gnuc_va_list __arg) __asm__ ("" "__isoc99_vsscanf") __attribute__ ((__nothrow__ , __leaf__))
__attribute__ ((__format__ (__scanf__, 2, 0)));
# 485 "/usr/include/stdio.h" 3 4
extern int fgetc (FILE *__stream);
extern int getc (FILE *__stream);
extern int getchar (void);
extern int getc_unlocked (FILE *__stream);
extern int getchar_unlocked (void);
# 510 "/usr/include/stdio.h" 3 4
extern int fgetc_unlocked (FILE *__stream);
# 521 "/usr/include/stdio.h" 3 4
extern int fputc (int __c, FILE *__stream);
extern int putc (int __c, FILE *__stream);
extern int putchar (int __c);
# 537 "/usr/include/stdio.h" 3 4
extern int fputc_unlocked (int __c, FILE *__stream);
extern int putc_unlocked (int __c, FILE *__stream);
extern int putchar_unlocked (int __c);
extern int getw (FILE *__stream);
extern int putw (int __w, FILE *__stream);
extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream)
;
# 603 "/usr/include/stdio.h" 3 4
extern __ssize_t __getdelim (char **__restrict __lineptr,
size_t *__restrict __n, int __delimiter,
FILE *__restrict __stream) ;
extern __ssize_t getdelim (char **__restrict __lineptr,
size_t *__restrict __n, int __delimiter,
FILE *__restrict __stream) ;
extern __ssize_t getline (char **__restrict __lineptr,
size_t *__restrict __n,
FILE *__restrict __stream) ;
extern int fputs (const char *__restrict __s, FILE *__restrict __stream);
extern int puts (const char *__s);
extern int ungetc (int __c, FILE *__stream);
extern size_t fread (void *__restrict __ptr, size_t __size,
size_t __n, FILE *__restrict __stream) ;
extern size_t fwrite (const void *__restrict __ptr, size_t __size,
size_t __n, FILE *__restrict __s);
# 673 "/usr/include/stdio.h" 3 4
extern size_t fread_unlocked (void *__restrict __ptr, size_t __size,
size_t __n, FILE *__restrict __stream) ;
extern size_t fwrite_unlocked (const void *__restrict __ptr, size_t __size,
size_t __n, FILE *__restrict __stream);
extern int fseek (FILE *__stream, long int __off, int __whence);
extern long int ftell (FILE *__stream) ;
extern void rewind (FILE *__stream);
# 707 "/usr/include/stdio.h" 3 4
extern int fseeko (FILE *__stream, __off_t __off, int __whence);
extern __off_t ftello (FILE *__stream) ;
# 731 "/usr/include/stdio.h" 3 4
extern int fgetpos (FILE *__restrict __stream, fpos_t *__restrict __pos);
extern int fsetpos (FILE *__stream, const fpos_t *__pos);
# 757 "/usr/include/stdio.h" 3 4
extern void clearerr (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__));
extern int feof (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__)) ;
extern int ferror (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__)) ;
extern void clearerr_unlocked (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__));
extern int feof_unlocked (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__)) ;
extern int ferror_unlocked (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__)) ;
extern void perror (const char *__s);
# 1 "/usr/include/x86_64-linux-gnu/bits/sys_errlist.h" 1 3 4
# 26 "/usr/include/x86_64-linux-gnu/bits/sys_errlist.h" 3 4
extern int sys_nerr;
extern const char *const sys_errlist[];
# 782 "/usr/include/stdio.h" 2 3 4
extern int fileno (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__)) ;
extern int fileno_unlocked (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__)) ;
# 800 "/usr/include/stdio.h" 3 4
extern FILE *popen (const char *__command, const char *__modes) ;
extern int pclose (FILE *__stream);
extern char *ctermid (char *__s) __attribute__ ((__nothrow__ , __leaf__));
# 840 "/usr/include/stdio.h" 3 4
extern void flockfile (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__));
extern int ftrylockfile (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__)) ;
extern void funlockfile (FILE *__stream) __attribute__ ((__nothrow__ , __leaf__));
# 858 "/usr/include/stdio.h" 3 4
extern int __uflow (FILE *);
extern int __overflow (FILE *, int);
# 873 "/usr/include/stdio.h" 3 4
# 20 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h" 2
# 21 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h"
void __DSVERIFIER_assume(_Bool expression){
__ESBMC_assume(expression);
# 33 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h"
}
void __DSVERIFIER_assert(_Bool expression){
# 36 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h" 3 4
((void) sizeof ((
# 36 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h"
expression
# 36 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 36 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h"
expression
# 36 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h" 3 4
) ; else __assert_fail (
# 36 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h"
"expression"
# 36 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h", 36, __extension__ __PRETTY_FUNCTION__); }))
# 36 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h"
;
}
void __DSVERIFIER_assert_msg(_Bool expression, char * msg){
printf("%s", msg);
# 41 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h" 3 4
((void) sizeof ((
# 41 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h"
expression
# 41 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 41 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h"
expression
# 41 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h" 3 4
) ; else __assert_fail (
# 41 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h"
"expression"
# 41 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h", 41, __extension__ __PRETTY_FUNCTION__); }))
# 41 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/compatibility.h"
;
}
# 22 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/fixed-point.h" 1
# 27 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/fixed-point.h"
# 1 "/usr/lib/gcc/x86_64-linux-gnu/9/include/stdint.h" 1 3 4
# 9 "/usr/lib/gcc/x86_64-linux-gnu/9/include/stdint.h" 3 4
# 1 "/usr/include/stdint.h" 1 3 4
# 26 "/usr/include/stdint.h" 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/libc-header-start.h" 1 3 4
# 27 "/usr/include/stdint.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/wchar.h" 1 3 4
# 29 "/usr/include/stdint.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/wordsize.h" 1 3 4
# 30 "/usr/include/stdint.h" 2 3 4
# 1 "/usr/include/x86_64-linux-gnu/bits/stdint-uintn.h" 1 3 4
# 24 "/usr/include/x86_64-linux-gnu/bits/stdint-uintn.h" 3 4
# 24 "/usr/include/x86_64-linux-gnu/bits/stdint-uintn.h" 3 4
typedef __uint8_t uint8_t;
typedef __uint16_t uint16_t;
typedef __uint32_t uint32_t;
typedef __uint64_t uint64_t;
# 38 "/usr/include/stdint.h" 2 3 4
typedef __int_least8_t int_least8_t;
typedef __int_least16_t int_least16_t;
typedef __int_least32_t int_least32_t;
typedef __int_least64_t int_least64_t;
typedef __uint_least8_t uint_least8_t;
typedef __uint_least16_t uint_least16_t;
typedef __uint_least32_t uint_least32_t;
typedef __uint_least64_t uint_least64_t;
typedef signed char int_fast8_t;
typedef long int int_fast16_t;
typedef long int int_fast32_t;
typedef long int int_fast64_t;
# 71 "/usr/include/stdint.h" 3 4
typedef unsigned char uint_fast8_t;
typedef unsigned long int uint_fast16_t;
typedef unsigned long int uint_fast32_t;
typedef unsigned long int uint_fast64_t;
# 87 "/usr/include/stdint.h" 3 4
typedef long int intptr_t;
typedef unsigned long int uintptr_t;
# 101 "/usr/include/stdint.h" 3 4
typedef __intmax_t intmax_t;
typedef __uintmax_t uintmax_t;
# 10 "/usr/lib/gcc/x86_64-linux-gnu/9/include/stdint.h" 2 3 4
# 28 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/fixed-point.h" 2
# 1 "/usr/include/inttypes.h" 1 3 4
# 34 "/usr/include/inttypes.h" 3 4
typedef int __gwchar_t;
# 266 "/usr/include/inttypes.h" 3 4
typedef struct
{
long int quot;
long int rem;
} imaxdiv_t;
# 290 "/usr/include/inttypes.h" 3 4
extern intmax_t imaxabs (intmax_t __n) __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__const__));
extern imaxdiv_t imaxdiv (intmax_t __numer, intmax_t __denom)
__attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__const__));
extern intmax_t strtoimax (const char *__restrict __nptr,
char **__restrict __endptr, int __base) __attribute__ ((__nothrow__ , __leaf__));
extern uintmax_t strtoumax (const char *__restrict __nptr,
char ** __restrict __endptr, int __base) __attribute__ ((__nothrow__ , __leaf__));
extern intmax_t wcstoimax (const __gwchar_t *__restrict __nptr,
__gwchar_t **__restrict __endptr, int __base)
__attribute__ ((__nothrow__ , __leaf__));
extern uintmax_t wcstoumax (const __gwchar_t *__restrict __nptr,
__gwchar_t ** __restrict __endptr, int __base)
__attribute__ ((__nothrow__ , __leaf__));
# 432 "/usr/include/inttypes.h" 3 4
# 29 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/fixed-point.h" 2
# 30 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/fixed-point.h"
extern implementation impl;
typedef int64_t fxp_t;
fxp_t _fxp_one;
fxp_t _fxp_half;
fxp_t _fxp_minus_one;
fxp_t _fxp_min;
fxp_t _fxp_max;
double _dbl_max;
double _dbl_min;
fxp_t _fxp_fmask;
fxp_t _fxp_imask;
static const double scale_factor[31] = { 1.0, 2.0, 4.0, 8.0, 16.0, 32.0, 64.0,
128.0, 256.0, 512.0, 1024.0, 2048.0, 4096.0, 8192.0, 16384.0, 32768.0,
65536.0, 131072.0, 262144.0, 524288.0, 1048576.0, 2097152.0, 4194304.0,
8388608.0, 16777216.0, 33554432.0, 67108864.0, 134217728.0,
268435456.0, 536870912.0, 1073741824.0 };
static const double scale_factor_inv[31] = { 1.0, 0.5, 0.25, 0.125, 0.0625,
0.03125, 0.015625, 0.0078125, 0.00390625, 0.001953125, 0.0009765625,
0.00048828125, 0.000244140625, 0.0001220703125, 0.00006103515625,
0.000030517578125, 0.000015258789063, 0.000007629394531,
0.000003814697266, 0.000001907348633, 0.000000953674316,
0.000000476837158, 0.000000238418579, 0.000000119209290,
0.000000059604645, 0.000000029802322, 0.000000014901161,
0.000000007450581, 0.000000003725290, 0.000000001862645,
0.000000000931323 };
static const float rand_uni[10000] = { -0.486240329978498f, -0.0886462298529236f, -0.140307596103306f, 0.301096597450952f, 0.0993171079928659f, 0.971751769763271f, 0.985173975730828f, 0.555993645184930f, 0.582088652691427f, -0.153377496651175f, 0.383610009058905f, -0.335724126391271f, 0.978768141636516f, -0.276250018648572f, 0.390075705739569f, -0.179022404038782f, 0.690083827115783f, -0.872530132490992f, -0.970585763293203f, -0.581476053441704f, -0.532614615674888f, -0.239699306693312f, -0.678183014035494f, 0.349502640932782f, -0.210469890686263f, 0.841262085391842f, -0.473585465151401f, 0.659383565443701f, -0.651160036945754f, -0.961043527561335f, -0.0814927639199137f, 0.621303110569702f, -0.784529166943541f, 0.0238464770757800f, 0.392694728594110f, 0.776848735202001f, 0.0870059709310509f, 0.880563655271790f, 0.883457036977564f, -0.249235082877382f, -0.691040749216870f, 0.578731120064320f, -0.973932858000832f, -0.117699105431720f, -0.723831748151088f, -0.483149657477524f, -0.821277691383664f, -0.459725618100875f, 0.148175952221864f, 0.444306875534854f, -0.325610376336498f, 0.544142311404910f, -0.165319440455435f, 0.136706800705517f, 0.543312481350682f, 0.467210959764607f, -0.349266618228534f, -0.660110730565862f, 0.910332331495431f, 0.961049802789367f, -0.786168905164629f, 0.305648402726554f, 0.510815258508885f, 0.0950733260984060f, 0.173750645487898f, 0.144488668408672f, 0.0190031984466126f, -0.299194577636724f, 0.302411647442273f, -0.730462524226212f, 0.688646006554796f, 0.134948379722118f, 0.533716723458894f, -0.00226300779660438f, -0.561340777806718f, 0.450396313744017f, -0.569445876566955f, 0.954155246557698f, -0.255403882430676f, -0.759820984120828f, -0.855279790307514f, -0.147352581758156f, -0.302269055643746f, -0.642038024364086f, -0.367405981107491f, 0.491844011712164f, -0.542191710121194f, -0.938294043323732f, 0.683979894338020f, 0.294728290855287f, 0.00662691839443919f, -0.931040350582855f, 0.152356209974418f, 0.678620860551457f, 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# 102 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/fixed-point.h"
fxp_t wrap(fxp_t kX, fxp_t kLowerBound, fxp_t kUpperBound)
{
int32_t range_size = kUpperBound - kLowerBound + 1;
if (kX < kLowerBound){
kX += range_size * ((kLowerBound - kX) / range_size + 1);
}
return kLowerBound + (kX - kLowerBound) % range_size;
}
fxp_t fxp_get_int_part(fxp_t in) {
return ((in < 0) ? -((-in) & _fxp_imask) : in & _fxp_imask);
}
fxp_t fxp_get_frac_part(fxp_t in) {
return ((in < 0) ? -((-in) & _fxp_fmask) : in & _fxp_fmask);
}
float fxp_to_float(fxp_t fxp);
fxp_t fxp_quantize(fxp_t aquant) {
if (overflow_mode == 2) {
if(aquant < _fxp_min) {
return _fxp_min;
}
else if(aquant > _fxp_max) {
return _fxp_max;
}
}
else if (overflow_mode == 3) {
if(aquant < _fxp_min || aquant > _fxp_max) {
return wrap(aquant, _fxp_min, _fxp_max);
}
}
return (fxp_t) aquant;
}
void fxp_verify_overflow(fxp_t value){
fxp_quantize(value);
printf("An Overflow Occurred in system's output");
__DSVERIFIER_assert(value <= _fxp_max && value >= _fxp_min);
}
void fxp_verify_overflow_node(fxp_t value, char* msg){
if (1 == 2)
{
printf("%s",msg);
__DSVERIFIER_assert(value <= _fxp_max && value >= _fxp_min);
}
}
void fxp_verify_overflow_array(fxp_t array[], int n){
int i=0;
for(i=0; i<n;i++){
fxp_verify_overflow(array[i]);
}
}
fxp_t fxp_int_to_fxp(int in) {
fxp_t lin;
lin = (fxp_t) in*_fxp_one;
return lin;
}
int fxp_to_int(fxp_t fxp) {
if(fxp >= 0){
fxp += _fxp_half;
} else {
fxp -= _fxp_half;
}
fxp >>= impl.frac_bits;
return (int) fxp;
}
fxp_t fxp_float_to_fxp(float f) {
fxp_t tmp;
double ftemp;
ftemp = f * scale_factor[impl.frac_bits];
if(f >= 0) {
tmp = (fxp_t)(ftemp + 0.5);
}
else {
tmp = (fxp_t)(ftemp - 0.5);
}
return tmp;
}
fxp_t fxp_double_to_fxp(double value) {
fxp_t tmp;
double ftemp = value * scale_factor[impl.frac_bits];
if (rounding_mode == 0){
if(value >= 0) {
tmp = (fxp_t)(ftemp + 0.5);
}
else {
tmp = (fxp_t)(ftemp - 0.5);
}
} else if(rounding_mode == 1){
tmp = (fxp_t) ftemp;
double residue = ftemp - tmp;
if ((value < 0) && (residue != 0)){
ftemp = ftemp - 1;
tmp = (fxp_t) ftemp;
}
} else if (rounding_mode == 0){
tmp = (fxp_t) ftemp;
}
return tmp;
}
void fxp_float_to_fxp_array(float f[], fxp_t r[], int N) {
int i;
for(i = 0; i < N; ++i) {
r[i] = fxp_float_to_fxp(f[i]);
}
}
void fxp_double_to_fxp_array(double f[], fxp_t r[], int N) {
int i;
for(i = 0; i < N; ++i) {
r[i] = fxp_double_to_fxp(f[i]);
}
}
# 275 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/fixed-point.h"
float fxp_to_float(fxp_t fxp) {
float f;
int f_int = (int) fxp;
f = f_int * scale_factor_inv[impl.frac_bits];
return f;
}
double fxp_to_double(fxp_t fxp) {
double f;
int f_int = (int) fxp;
f = f_int * scale_factor_inv[impl.frac_bits];
return f;
}
void fxp_to_float_array(float f[], fxp_t r[], int N) {
int i;
for(i = 0; i < N; ++i) {
f[i] = fxp_to_float(r[i]);
}
}
void fxp_to_double_array(double f[], fxp_t r[], int N) {
int i;
for(i = 0; i < N; ++i) {
f[i] = fxp_to_double(r[i]);
}
}
fxp_t fxp_abs(fxp_t a) {
fxp_t tmp;
tmp = ((a < 0) ? -(fxp_t)(a) : a);
tmp = fxp_quantize(tmp);
return tmp;
}
fxp_t fxp_add(fxp_t aadd, fxp_t badd) {
fxp_t tmpadd;
tmpadd = ((fxp_t)(aadd) + (fxp_t)(badd));
tmpadd = fxp_quantize(tmpadd);
return tmpadd;
}
fxp_t fxp_sub(fxp_t asub, fxp_t bsub) {
fxp_t tmpsub;
tmpsub = (fxp_t)((fxp_t)(asub) - (fxp_t)(bsub));
tmpsub = fxp_quantize(tmpsub);
return tmpsub;
}
fxp_t fxp_mult(fxp_t amult, fxp_t bmult) {
fxp_t tmpmult, tmpmultprec;
tmpmult = (fxp_t)((fxp_t)(amult)*(fxp_t)(bmult));
if (tmpmult >= 0) {
tmpmultprec = (tmpmult + ((tmpmult & 1 << (impl.frac_bits - 1)) << 1)) >> impl.frac_bits;
} else {
tmpmultprec = -(((-tmpmult) + (((-tmpmult) & 1 << (impl.frac_bits - 1)) << 1)) >> impl.frac_bits);
}
tmpmultprec = fxp_quantize(tmpmultprec);
return tmpmultprec;
}
# 372 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/fixed-point.h"
fxp_t fxp_div(fxp_t a, fxp_t b){
__DSVERIFIER_assume( b!=0 );
fxp_t tmpdiv = ((a << impl.frac_bits) / b);
tmpdiv = fxp_quantize(tmpdiv);
return tmpdiv;
}
fxp_t fxp_neg(fxp_t aneg) {
fxp_t tmpneg;
tmpneg = -(fxp_t)(aneg);
tmpneg = fxp_quantize(tmpneg);
return tmpneg;
}
# 398 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/fixed-point.h"
fxp_t fxp_sign(fxp_t a) {
return ((a == 0) ? 0 : ((a < 0) ? _fxp_minus_one : _fxp_one) );
}
fxp_t fxp_shrl(fxp_t in, int shift) {
return (fxp_t) (((unsigned int) in) >> shift);
}
fxp_t fxp_square(fxp_t a) {
return fxp_mult(a, a);
}
void fxp_print_int(fxp_t a) {
printf("\n%i", (int32_t)a);
}
void fxp_print_float(fxp_t a) {
printf("\n%f", fxp_to_float(a));
}
void fxp_print_float_array(fxp_t a[], int N) {
int i;
for(i = 0; i < N; ++i) {
printf("\n%f", fxp_to_float(a[i]));
}
}
void print_fxp_array_elements(char * name, fxp_t * v, int n){
printf("%s = {", name);
int i;
for(i=0; i < n; i++){
printf(" %jd ", v[i]);
}
printf("}\n");
}
# 23 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/util.h" 1
# 24 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/util.h"
void initialize_array(double v[], int n){
int i;
for(i=0; i<n; i++){
v[i] = 0;
}
}
void revert_array(double v[], double out[], int n){
initialize_array(out,n);
int i;
for(i=0; i<n; i++){
out[i] = v[n-i-1];
}
}
double internal_pow(double a, double b){
int i;
double acc = 1;
for (i=0; i < b; i++){
acc = acc*a;
}
return acc;
}
double internal_abs(double a){
return a < 0 ? -a : a;
}
int fatorial(int n){
return n == 0 ? 1 : n * fatorial(n-1);
}
int check_stability(double a[], int n){
int lines = 2 * n - 1;
int columns = n;
double m[lines][n];
int i,j;
double current_stability[n];
for (i=0; i < n; i++){
current_stability[i] = a[i];
}
double sum = 0;
for (i=0; i < n; i++){
sum += a[i];
}
if (sum <= 0){
printf("[DEBUG] the first constraint of Jury criteria failed: (F(1) > 0)");
return 0;
}
sum = 0;
for (i=0; i < n; i++){
sum += a[i] * internal_pow(-1, n-1-i);
}
sum = sum * internal_pow(-1, n-1);
if (sum <= 0){
printf("[DEBUG] the second constraint of Jury criteria failed: (F(-1)*(-1)^n > 0)");
return 0;
}
if (internal_abs(a[n-1]) > a[0]){
printf("[DEBUG] the third constraint of Jury criteria failed: (abs(a0) < a_{n}*z^{n})");
return 0;
}
for (i=0; i < lines; i++){
for (j=0; j < columns; j++){
m[i][j] = 0;
}
}
for (i=0; i < lines; i++){
for (j=0; j < columns; j++){
if (i == 0){
m[i][j] = a[j];
continue;
}
if (i % 2 != 0 ){
int x;
for(x=0; x<columns;x++){
m[i][x] = m[i-1][columns-x-1];
}
columns = columns - 1;
j = columns;
}else{
m[i][j] = m[i-2][j] - (m[i-2][columns] / m[i-2][0]) * m[i-1][j];
}
}
}
int first_is_positive = m[0][0] >= 0 ? 1 : 0;
for (i=0; i < lines; i++){
if (i % 2 == 0){
int line_is_positive = m[i][0] >= 0 ? 1 : 0;
if (first_is_positive != line_is_positive){
return 0;
}
continue;
}
}
return 1;
}
void poly_sum(double a[], int Na, double b[], int Nb, double ans[], int Nans){
int i;
Nans = Na>Nb? Na:Nb;
for (i=0; i<Nans; i++){
if (Na>Nb){
ans[i]=a[i];
if (i > Na-Nb-1){
ans[i]=ans[i]+b[i-Na+Nb];
}
}else {
ans[i]=b[i];
if (i> Nb - Na -1){
ans[i]=ans[i]+a[i-Nb+Na];
}
}
}
}
void poly_mult(double a[], int Na, double b[], int Nb, double ans[], int Nans){
int i;
int j;
int k;
Nans = Na+Nb-1;
for (i=0; i<Na; i++){
for (j=0; j<Nb; j++){
k= Na + Nb - i - j - 2;
ans[k]=0;
}
}
for (i=0; i<Na; i++){
for (j=0; j<Nb; j++){
k= Na + Nb - i - j - 2;
ans[k]=ans[k]+a[Na - i - 1]*b[Nb - j - 1];
}
}
}
void double_check_oscillations(double * y, int y_size){
__DSVERIFIER_assume(y[0] != y[y_size - 1]);
int window_timer = 0;
int window_count = 0;
int i, j;
for (i = 2; i < y_size; i++){
int window_size = i;
for(j=0; j<y_size; j++){
if (window_timer > window_size){
window_timer = 0;
window_count = 0;
}
int window_index = j + window_size;
if (window_index < y_size){
if (y[j] == y[window_index]){
window_count++;
# 209 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/util.h" 3 4
((void) sizeof ((
# 209 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/util.h"
!(window_count == window_size)
# 209 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/util.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 209 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/util.h"
!(window_count == window_size)
# 209 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/util.h" 3 4
) ; else __assert_fail (
# 209 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/util.h"
"!(window_count == window_size)"
# 209 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/util.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/util.h", 209, __extension__ __PRETTY_FUNCTION__); }))
# 209 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/util.h"
;
}
}else{
break;
}
window_timer++;
}
}
}
void double_check_limit_cycle(double * y, int y_size){
double reference = y[y_size - 1];
int idx = 0;
int window_size = 1;
for(idx = (y_size-2); idx >= 0; idx--){
if (y[idx] != reference){
window_size++;
}else{
break;
}
}
__DSVERIFIER_assume(window_size != y_size && window_size != 1);
printf("window_size %d\n", window_size);
int desired_elements = 2 * window_size;
int found_elements = 0;
for(idx = (y_size-1); idx >= 0; idx--){
if (idx > (y_size-window_size-1)){
printf("%.0f == %.0f\n", y[idx], y[idx-window_size]);
int cmp_idx = idx - window_size;
if ((cmp_idx > 0) && (y[idx] == y[idx-window_size])){
found_elements = found_elements + 2;
}else{
break;
}
}
}
printf("desired_elements %d\n", desired_elements);
printf("found_elements %d\n", found_elements);
__DSVERIFIER_assert(desired_elements != found_elements);
}
void double_check_persistent_limit_cycle(double * y, int y_size){
int idy = 0;
int count_same = 0;
int window_size = 0;
double reference = y[0];
for(idy = 0; idy < y_size; idy++){
if (y[idy] != reference){
window_size++;
} else if (window_size != 0){
break;
} else {
count_same++;
}
}
window_size += count_same;
__DSVERIFIER_assume(window_size > 1 && window_size <= y_size/2);
double lco_elements[window_size];
for(idy = 0; idy < y_size; idy++){
if (idy < window_size){
lco_elements[idy] = y[idy];
}
}
idy = 0;
int lco_idy = 0;
_Bool is_persistent = 0;
while (idy < y_size){
if(y[idy++] == lco_elements[lco_idy++]){
is_persistent = 1;
}else{
is_persistent = 0;
break;
}
if (lco_idy == window_size){
lco_idy = 0;
}
}
__DSVERIFIER_assert(is_persistent == 0);
}
void print_array_elements(char * name, double * v, int n){
printf("%s = {", name);
int i;
for(i=0; i < n; i++){
printf(" %.32f ", v[i]);
}
printf("}\n");
}
void double_add_matrix( unsigned int lines, unsigned int columns, double m1[4][4], double m2[4][4], double result[4][4]){
unsigned int i, j;
for (i = 0; i < lines; i++){
for (j = 0; j < columns; j++){
result[i][j] = m1[i][j] + m2[i][j];
}
}
}
void double_sub_matrix( unsigned int lines, unsigned int columns, double m1[4][4], double m2[4][4], double result[4][4]){
unsigned int i, j;
for (i = 0; i < lines; i++){
for (j = 0; j < columns; j++){
result[i][j] = m1[i][j] - m2[i][j];
}
}
}
void double_matrix_multiplication( unsigned int i1, unsigned int j1, unsigned int i2, unsigned int j2, double m1[4][4], double m2[4][4], double m3[4][4]){
unsigned int i, j, k;
if (j1 == i2) {
for (i=0; i<i1; i++) {
for (j=0; j<j2; j++) {
m3[i][j] = 0;
}
}
for (i=0;i<i1; i++) {
for (j=0; j<j2; j++) {
for (k=0; k<j1; k++) {
double mult = (m1[i][k] * m2[k][j]);
m3[i][j] = m3[i][j] + (m1[i][k] * m2[k][j]);
}
}
}
} else {
printf("\nError! Operation invalid, please enter with valid matrices.\n");
}
}
void fxp_matrix_multiplication( unsigned int i1, unsigned int j1, unsigned int i2, unsigned int j2, fxp_t m1[4][4], fxp_t m2[4][4], fxp_t m3[4][4]){
unsigned int i, j, k;
if (j1 == i2) {
for (i=0; i<i1; i++) {
for (j=0; j<j2; j++) {
m3[i][j] = 0;
}
}
for (i=0;i<i1; i++) {
for (j=0; j<j2; j++) {
for (k=0; k<j1; k++) {
m3[i][j] = fxp_add( m3[i][j], fxp_mult(m1[i][k] , m2[k][j]));
}
}
}
} else {
printf("\nError! Operation invalid, please enter with valid matrices.\n");
}
}
void fxp_exp_matrix(unsigned int lines, unsigned int columns, fxp_t m1[4][4], unsigned int expNumber, fxp_t result[4][4]){
unsigned int i, j, l, k;
fxp_t m2[4][4];
if(expNumber == 0){
for (i = 0; i < lines; i++){
for (j = 0; j < columns; j++){
if(i == j){
result[i][j] = fxp_double_to_fxp(1.0);
} else {
result[i][j] = 0.0;
}
}
}
return;
}
for (i = 0; i < lines; i++)
for (j = 0; j < columns; j++) result[i][j] = m1[i][j];
if(expNumber == 1){
return;
}
for(l = 1; l < expNumber; l++){
for (i = 0; i < lines; i++)
for (j = 0; j < columns; j++) m2[i][j] = result[i][j];
for (i = 0; i < lines; i++)
for (j = 0; j < columns; j++) result[i][j] = 0;
for (i=0;i<lines; i++) {
for (j=0; j<columns; j++) {
for (k=0; k<columns; k++) {
result[i][j] = fxp_add( result[i][j], fxp_mult(m2[i][k] , m1[k][j]));
}
}
}
}
}
void double_exp_matrix(unsigned int lines, unsigned int columns, double m1[4][4], unsigned int expNumber, double result[4][4]){
unsigned int i, j, k, l;
double m2[4][4];
if(expNumber == 0){
for (i = 0; i < lines; i++){
for (j = 0; j < columns; j++){
if(i == j){
result[i][j] = 1.0;
} else {
result[i][j] = 0.0;
}
}
}
return;
}
for (i = 0; i < lines; i++)
for (j = 0; j < columns; j++) result[i][j] = m1[i][j];
if(expNumber == 1){
return;
}
for(l = 1; l < expNumber; l++){
for (i = 0; i < lines; i++)
for (j = 0; j < columns; j++) m2[i][j] = result[i][j];
for (i = 0; i < lines; i++)
for (j = 0; j < columns; j++) result[i][j] = 0;
for (i=0;i<lines; i++) {
for (j=0; j<columns; j++) {
for (k=0; k<columns; k++) {
result[i][j] = result[i][j] + (m2[i][k] * m1[k][j]);
}
}
}
}
}
void fxp_add_matrix( unsigned int lines, unsigned int columns, fxp_t m1[4][4], fxp_t m2[4][4], fxp_t result[4][4]){
unsigned int i, j;
for (i = 0; i < lines; i++)
for (j = 0; j < columns; j++) {
result[i][j] = fxp_add(m1[i][j] , m2[i][j]);
}
}
void fxp_sub_matrix( unsigned int lines, unsigned int columns, fxp_t m1[4][4], fxp_t m2[4][4], fxp_t result[4][4]){
unsigned int i, j;
for (i = 0; i < lines; i++)
for (j = 0; j < columns; j++) result[i][j] = fxp_sub(m1[i][j] , m2[i][j]);
}
void print_matrix(double matrix[4][4], unsigned int lines, unsigned int columns){
printf("\nMatrix\n=====================\n\n");
unsigned int i, j;
for (i=0; i<lines; i++) {
for (j=0; j<columns; j++) {
printf("#matrix[%d][%d]: %2.2f ", i,j,matrix[i][j]);
}
printf("\n");
}
printf("\n");
}
double determinant(double a[4][4],int n)
{
int i,j,j1,j2;
double det = 0;
double m[4][4];
if (n < 1) {
} else if (n == 1) {
det = a[0][0];
} else if (n == 2) {
det = a[0][0] * a[1][1] - a[1][0] * a[0][1];
} else {
det = 0;
for (j1=0;j1<n;j1++) {
for (i=0;i<n-1;i++)
for (i=1;i<n;i++) {
j2 = 0;
for (j=0;j<n;j++) {
if (j == j1)
continue;
m[i-1][j2] = a[i][j];
j2++;
}
}
det += internal_pow(-1.0,1.0+j1+1.0) * a[0][j1] * determinant(m,n-1);
}
}
return(det);
}
double fxp_determinant(fxp_t a_fxp[4][4],int n)
{
int i,j,j1,j2;
double a[4][4];
for(i=0; i<n;i++){
for(j=0; j<n;j++){
a[i][j]= fxp_to_double(a_fxp[i][j]);
}
}
double det = 0;
double m[4][4];
if (n < 1) {
} else if (n == 1) {
det = a[0][0];
} else if (n == 2) {
det = a[0][0] * a[1][1] - a[1][0] * a[0][1];
} else {
det = 0;
for (j1=0;j1<n;j1++) {
for (i=0;i<n-1;i++)
for (i=1;i<n;i++) {
j2 = 0;
for (j=0;j<n;j++) {
if (j == j1)
continue;
m[i-1][j2] = a[i][j];
j2++;
}
}
det += internal_pow(-1.0,1.0+j1+1.0) * a[0][j1] * determinant(m,n-1);
}
}
return(det);
}
void transpose(double a[4][4], double b[4][4],int n, int m)
{
int i,j;
for (i=0;i<n;i++) {
for (j=0;j<m;j++) {
b[j][i] = a[i][j];
}
}
}
void fxp_transpose(fxp_t a[4][4], fxp_t b[4][4],int n, int m)
{
int i,j;
for (i=0;i<n;i++) {
for (j=0;j<m;j++) {
b[j][i] = a[i][j];
}
}
}
# 24 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 1
# 19 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
extern int generic_timer;
extern hardware hw;
double generic_timing_shift_l_double(double zIn, double z[], int N) {
generic_timer += ((2 * hw.assembly.push) + (3 * hw.assembly.in) + (3 * hw.assembly.out) + (1 * hw.assembly.sbiw) + (1 * hw.assembly.cli) + (8 * hw.assembly.std));
int i;
double zOut;
zOut = z[0];
generic_timer += ((5 * hw.assembly.ldd) + (2 * hw.assembly.mov) + (4 * hw.assembly.std) + (1 * hw.assembly.ld));
generic_timer += ((2 * hw.assembly.std) + (1 * hw.assembly.rjmp));
for (i = 0; i < N - 1; i++) {
generic_timer += ((17 * hw.assembly.ldd) + (4 * hw.assembly.lsl) + (4 * hw.assembly.rol) + (2 * hw.assembly.add) + (2 * hw.assembly.adc) + (6 * hw.assembly.mov) + (2 * hw.assembly.adiw) + (5 * hw.assembly.std) + (1 * hw.assembly.ld) + (1 * hw.assembly.st) + (1 * hw.assembly.subi) + (1 * hw.assembly.sbc)+ (1 * hw.assembly.cp) + (1 * hw.assembly.cpc) + (1 * hw.assembly.brlt));
z[i] = z[i + 1];
}
z[N - 1] = zIn;
generic_timer += ((12 * hw.assembly.ldd) + (6 * hw.assembly.mov) + (3 * hw.assembly.std) + (2 * hw.assembly.lsl) + (2 * hw.assembly.rol) + (1 * hw.assembly.adc) + (1 * hw.assembly.add) + (1 * hw.assembly.subi) + (1 * hw.assembly.sbci) + (1 * hw.assembly.st) + (1 * hw.assembly.adiw) + (1 * hw.assembly.in)+ (1 * hw.assembly.cli));
generic_timer += ((3 * hw.assembly.out) + (2 * hw.assembly.pop) + (1 * hw.assembly.ret));
return (zOut);
}
double generic_timing_shift_r_double(double zIn, double z[], int N) {
generic_timer += ((2 * hw.assembly.push) + (3 * hw.assembly.in) + (3 * hw.assembly.out) + (1 * hw.assembly.sbiw) + (1 * hw.assembly.cli) + (8 * hw.assembly.std));
int i;
double zOut;
zOut = z[N - 1];
generic_timer += ((7 * hw.assembly.ldd) + (2 * hw.assembly.rol) + (2 * hw.assembly.lsl) + (2 * hw.assembly.mov) + (4 * hw.assembly.std) + (1 * hw.assembly.add) + (1 * hw.assembly.adc) + (1 * hw.assembly.ld) + (1 * hw.assembly.subi) + (1 * hw.assembly.sbci));
generic_timer += ((2 * hw.assembly.ldd) + (2 * hw.assembly.std) + (1 * hw.assembly.sbiw) + (1 * hw.assembly.rjmp));
for (i = N - 1; i > 0; i--) {
z[i] = z[i - 1];
generic_timer += ((15 * hw.assembly.ldd) + (4 * hw.assembly.lsl) + (4 * hw.assembly.rol) + (2 * hw.assembly.add) + (2 * hw.assembly.adc) + (4 * hw.assembly.mov) + (5 * hw.assembly.std) + (1 * hw.assembly.subi) + (1 * hw.assembly.sbci) + (1 * hw.assembly.ld) + (1 * hw.assembly.st) + (1 * hw.assembly.sbiw) + (1 * hw.assembly.cp) + (1 * hw.assembly.cpc) + (1 * hw.assembly.brlt));
}
z[0] = zIn;
generic_timer += ((10 * hw.assembly.ldd) + (5 * hw.assembly.mov) + (3 * hw.assembly.std) + (3 * hw.assembly.out) + (2 * hw.assembly.pop) + (1 * hw.assembly.ret) + (1 * hw.assembly.ret) + (1 * hw.assembly.cli) + (1 * hw.assembly.in) + (1 * hw.assembly.st) + (1 * hw.assembly.adiw));
return zOut;
}
fxp_t shiftL(fxp_t zIn, fxp_t z[], int N) {
int i;
fxp_t zOut;
zOut = z[0];
for (i = 0; i < N - 1; i++) {
z[i] = z[i + 1];
}
z[N - 1] = zIn;
return (zOut);
}
fxp_t shiftR(fxp_t zIn, fxp_t z[], int N) {
int i;
fxp_t zOut;
zOut = z[N - 1];
for (i = N - 1; i > 0; i--) {
z[i] = z[i - 1];
}
z[0] = zIn;
return zOut;
}
float shiftLfloat(float zIn, float z[], int N) {
int i;
float zOut;
zOut = z[0];
for (i = 0; i < N - 1; i++) {
z[i] = z[i + 1];
}
z[N - 1] = zIn;
return (zOut);
}
float shiftRfloat(float zIn, float z[], int N) {
int i;
float zOut;
zOut = z[N - 1];
for (i = N - 1; i > 0; i--) {
z[i] = z[i - 1];
}
z[0] = zIn;
return zOut;
}
double shiftRDdouble(double zIn, double z[], int N) {
int i;
double zOut;
zOut = z[0];
for (i = 0; i < N - 1; i++) {
z[i] = z[i + 1];
}
z[N - 1] = zIn;
return (zOut);
}
double shiftRdouble(double zIn, double z[], int N) {
int i;
double zOut;
zOut = z[N - 1];
for (i = N - 1; i > 0; i--) {
z[i] = z[i - 1];
}
z[0] = zIn;
return zOut;
}
double shiftLDouble(double zIn, double z[], int N) {
int i;
double zOut;
zOut = z[0];
for (i = 0; i < N - 1; i++) {
z[i] = z[i + 1];
}
z[N - 1] = zIn;
return (zOut);
}
void shiftLboth(float zfIn, float zf[], fxp_t zIn, fxp_t z[], int N) {
int i;
fxp_t zOut;
float zfOut;
zOut = z[0];
zfOut = zf[0];
for (i = 0; i < N - 1; i++) {
z[i] = z[i + 1];
zf[i] = zf[i + 1];
}
z[N - 1] = zIn;
zf[N - 1] = zfIn;
}
void shiftRboth(float zfIn, float zf[], fxp_t zIn, fxp_t z[], int N) {
int i;
fxp_t zOut;
float zfOut;
zOut = z[N - 1];
zfOut = zf[N - 1];
for (i = N - 1; i > 0; i--) {
z[i] = z[i - 1];
zf[i] = zf[i - 1];
}
z[0] = zIn;
zf[0] = zfIn;
}
int order(int Na, int Nb) {
return Na > Nb ? Na - 1 : Nb - 1;
}
void fxp_check_limit_cycle(fxp_t y[], int y_size){
fxp_t reference = y[y_size - 1];
int idx = 0;
int window_size = 1;
for(idx = (y_size-2); idx >= 0; idx--){
if (y[idx] != reference){
window_size++;
}else{
break;
}
}
__DSVERIFIER_assume(window_size != y_size && window_size != 1);
printf("window_size %d\n", window_size);
int desired_elements = 2 * window_size;
int found_elements = 0;
for(idx = (y_size-1); idx >= 0; idx--){
if (idx > (y_size-window_size-1)){
printf("%.0f == %.0f\n", y[idx], y[idx-window_size]);
int cmp_idx = idx - window_size;
if ((cmp_idx > 0) && (y[idx] == y[idx-window_size])){
found_elements = found_elements + 2;
}else{
break;
}
}
}
__DSVERIFIER_assume(found_elements > 0);
printf("desired_elements %d\n", desired_elements);
printf("found_elements %d\n", found_elements);
__DSVERIFIER_assume(found_elements == desired_elements);
__DSVERIFIER_assert(0);
}
void fxp_check_persistent_limit_cycle(fxp_t * y, int y_size){
int idy = 0;
int count_same = 0;
int window_size = 0;
fxp_t reference = y[0];
for(idy = 0; idy < y_size; idy++){
if (y[idy] != reference){
window_size++;
} else if (window_size != 0){
break;
} else {
count_same++;
}
}
window_size += count_same;
__DSVERIFIER_assume(window_size > 1 && window_size <= y_size/2);
fxp_t lco_elements[window_size];
for(idy = 0; idy < y_size; idy++){
if (idy < window_size){
lco_elements[idy] = y[idy];
}
}
idy = 0;
int lco_idy = 0;
_Bool is_persistent = 0;
while (idy < y_size){
if(y[idy++] == lco_elements[lco_idy++]){
is_persistent = 1;
}else{
is_persistent = 0;
break;
}
if (lco_idy == window_size){
lco_idy = 0;
}
}
__DSVERIFIER_assert(is_persistent == 0);
}
void fxp_check_oscillations(fxp_t y[] , int y_size){
__DSVERIFIER_assume((y[0] != y[y_size - 1]) && (y[y_size - 1] != y[y_size - 2]));
int window_timer = 0;
int window_count = 0;
int i, j;
for (i = 2; i < y_size; i++){
int window_size = i;
for(j=0; j<y_size; j++){
if (window_timer > window_size){
window_timer = 0;
window_count = 0;
}
int window_index = j + window_size;
if (window_index < y_size){
if (y[j] == y[window_index]){
window_count++;
__DSVERIFIER_assert(!(window_count == window_size));
}
}else{
break;
}
window_timer++;
}
}
}
int fxp_ln(int x) {
int t, y;
y = 0xa65af;
if (x < 0x00008000)
x <<= 16, y -= 0xb1721;
if (x < 0x00800000)
x <<= 8, y -= 0x58b91;
if (x < 0x08000000)
x <<= 4, y -= 0x2c5c8;
if (x < 0x20000000)
x <<= 2, y -= 0x162e4;
if (x < 0x40000000)
x <<= 1, y -= 0x0b172;
t = x + (x >> 1);
if ((t & 0x80000000) == 0)
x = t, y -= 0x067cd;
t = x + (x >> 2);
if ((t & 0x80000000) == 0)
x = t, y -= 0x03920;
t = x + (x >> 3);
if ((t & 0x80000000) == 0)
x = t, y -= 0x01e27;
t = x + (x >> 4);
if ((t & 0x80000000) == 0)
x = t, y -= 0x00f85;
t = x + (x >> 5);
if ((t & 0x80000000) == 0)
x = t, y -= 0x007e1;
t = x + (x >> 6);
if ((t & 0x80000000) == 0)
x = t, y -= 0x003f8;
t = x + (x >> 7);
if ((t & 0x80000000) == 0)
x = t, y -= 0x001fe;
x = 0x80000000 - x;
y -= x >> 15;
return y;
}
double fxp_log10_low(double x) {
int xint = (int) (x * 65536.0 + 0.5);
int lnum = fxp_ln(xint);
int lden = fxp_ln(655360);
return ((double) lnum / (double) lden);
}
double fxp_log10(double x) {
if (x > 32767.0) {
if (x > 1073676289.0) {
x = x / 1073676289.0;
return fxp_log10_low(x) + 9.030873362;
}
x = x / 32767.0;
return fxp_log10_low(x) + 4.515436681;
}
return fxp_log10_low(x);
}
float snrVariance(float s[], float n[], int blksz) {
int i;
double sm = 0, nm = 0, sv = 0, nv = 0, snr;
for (i = 0; i < blksz; i++) {
sm += s[i];
nm += n[i];
}
sm /= blksz;
nm /= blksz;
for (i = 0; i < blksz; i++) {
sv += (s[i] - sm) * (s[i] - sm);
nv += (n[i] - nm) * (n[i] - nm);
}
if (nv != 0.0f) {
# 373 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
((void) sizeof ((
# 373 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
sv >= nv
# 373 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 373 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
sv >= nv
# 373 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
) ; else __assert_fail (
# 373 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
"sv >= nv"
# 373 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h", 373, __extension__ __PRETTY_FUNCTION__); }))
# 373 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
;
snr = sv / nv;
return snr;
} else {
return 9999.9f;
}
}
float snrPower(float s[], float n[], int blksz) {
int i;
double sv = 0, nv = 0, snr;
for (i = 0; i < blksz; i++) {
sv += s[i] * s[i];
nv += n[i] * n[i];
}
if (nv != 0.0f) {
# 394 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
((void) sizeof ((
# 394 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
sv >= nv
# 394 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 394 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
sv >= nv
# 394 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
) ; else __assert_fail (
# 394 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
"sv >= nv"
# 394 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h", 394, __extension__ __PRETTY_FUNCTION__); }))
# 394 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
;
snr = sv / nv;
return snr;
} else {
return 9999.9f;
}
}
float snrPoint(float s[], float n[], int blksz) {
int i;
double ratio = 0, power = 0;
for (i = 0; i < blksz; i++) {
if(n[i] == 0) continue;
ratio = s[i] / n[i];
if(ratio > 150.0f || ratio < -150.0f) continue;
power = ratio * ratio;
# 412 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
((void) sizeof ((
# 412 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
power >= 1.0f
# 412 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 412 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
power >= 1.0f
# 412 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
) ; else __assert_fail (
# 412 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
"power >= 1.0f"
# 412 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h", 412, __extension__ __PRETTY_FUNCTION__); }))
# 412 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
;
}
return 9999.9f;
}
unsigned long next = 1;
int rand(void)
{
next = next*1103515245 + 12345;
return (unsigned int)(next/65536) % 32768;
}
void srand(unsigned int seed)
{
next = seed;
}
float iirIIOutTime(float w[], float x, float a[], float b[], int Na, int Nb) {
int timer1 = 0;
float *a_ptr, *b_ptr, *w_ptr;
float sum = 0;
a_ptr = &a[1];
b_ptr = &b[0];
w_ptr = &w[1];
int k, j;
timer1 += 71;
for (j = 1; j < Na; j++) {
w[0] -= *a_ptr++ * *w_ptr++;
timer1 += 54;
}
w[0] += x;
w_ptr = &w[0];
for (k = 0; k < Nb; k++) {
sum += *b_ptr++ * *w_ptr++;
timer1 += 46;
}
timer1 += 38;
# 450 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
((void) sizeof ((
# 450 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
(double)timer1*1 / 16000000 <= (double)1 / 100
# 450 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 450 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
(double)timer1*1 / 16000000 <= (double)1 / 100
# 450 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
) ; else __assert_fail (
# 450 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
"(double)timer1*CYCLE <= (double)DEADLINE"
# 450 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h", 450, __extension__ __PRETTY_FUNCTION__); }))
# 450 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
;
return sum;
}
float iirIItOutTime(float w[], float x, float a[], float b[], int Na, int Nb) {
int timer1 = 0;
float *a_ptr, *b_ptr;
float yout = 0;
a_ptr = &a[1];
b_ptr = &b[0];
int Nw = Na > Nb ? Na : Nb;
yout = (*b_ptr++ * x) + w[0];
int j;
timer1 += 105;
for (j = 0; j < Nw - 1; j++) {
w[j] = w[j + 1];
if (j < Na - 1) {
w[j] -= *a_ptr++ * yout;
timer1 += 41;
}
if (j < Nb - 1) {
w[j] += *b_ptr++ * x;
timer1 += 38;
}
timer1 += 54;
}
timer1 += 7;
# 477 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
((void) sizeof ((
# 477 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
(double)timer1*1 / 16000000 <= (double)1 / 100
# 477 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 477 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
(double)timer1*1 / 16000000 <= (double)1 / 100
# 477 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
) ; else __assert_fail (
# 477 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
"(double)timer1*CYCLE <= (double)DEADLINE"
# 477 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h", 477, __extension__ __PRETTY_FUNCTION__); }))
# 477 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
;
return yout;
}
double iirIItOutTime_double(double w[], double x, double a[], double b[], int Na, int Nb) {
int timer1 = 0;
double *a_ptr, *b_ptr;
double yout = 0;
a_ptr = &a[1];
b_ptr = &b[0];
int Nw = Na > Nb ? Na : Nb;
yout = (*b_ptr++ * x) + w[0];
int j;
timer1 += 105;
for (j = 0; j < Nw - 1; j++) {
w[j] = w[j + 1];
if (j < Na - 1) {
w[j] -= *a_ptr++ * yout;
timer1 += 41;
}
if (j < Nb - 1) {
w[j] += *b_ptr++ * x;
timer1 += 38;
}
timer1 += 54;
}
timer1 += 7;
# 504 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
((void) sizeof ((
# 504 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
(double)timer1*1 / 16000000 <= (double)1 / 100
# 504 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 504 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
(double)timer1*1 / 16000000 <= (double)1 / 100
# 504 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
) ; else __assert_fail (
# 504 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
"(double)timer1*CYCLE <= (double)DEADLINE"
# 504 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h", 504, __extension__ __PRETTY_FUNCTION__); }))
# 504 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/functions.h"
;
return yout;
}
void iirOutBoth(float yf[], float xf[], float af[], float bf[], float *sumf_ref,
fxp_t y[], fxp_t x[], fxp_t a[], fxp_t b[], fxp_t *sum_ref, int Na, int Nb) {
fxp_t *a_ptr, *y_ptr, *b_ptr, *x_ptr;
float *af_ptr, *yf_ptr, *bf_ptr, *xf_ptr;
fxp_t sum = 0;
float sumf = 0;
a_ptr = &a[1];
y_ptr = &y[Na - 1];
b_ptr = &b[0];
x_ptr = &x[Nb - 1];
af_ptr = &af[1];
yf_ptr = &yf[Na - 1];
bf_ptr = &bf[0];
xf_ptr = &xf[Nb - 1];
int i, j;
for (i = 0; i < Nb; i++) {
sum = fxp_add(sum, fxp_mult(*b_ptr++, *x_ptr--));
sumf += *bf_ptr++ * *xf_ptr--;
}
for (j = 1; j < Na; j++) {
sum = fxp_sub(sum, fxp_mult(*a_ptr++, *y_ptr--));
sumf -= *af_ptr++ * *yf_ptr--;
}
*sum_ref = sum;
*sumf_ref = sumf;
}
fxp_t iirOutFixedL(fxp_t y[], fxp_t x[], fxp_t xin, fxp_t a[], fxp_t b[], int Na, int Nb) {
fxp_t *a_ptr, *y_ptr, *b_ptr, *x_ptr;
fxp_t sum = 0;
a_ptr = &a[Na - 1];
y_ptr = &y[1];
b_ptr = &b[Nb - 1];
x_ptr = &x[0];
int i, j;
for (i = 0; i < Nb - 1; i++) {
x[i] = x[i+1];
sum = fxp_add(sum, fxp_mult(*b_ptr--, *x_ptr++));
}
x[Nb - 1] = xin;
sum = fxp_add(sum, fxp_mult(*b_ptr--, *x_ptr++));
for (j = 1; j < Na - 1; j++) {
sum = fxp_sub(sum, fxp_mult(*a_ptr--, *y_ptr++));
y[j] = y[j+1];
}
if(Na>1) sum = fxp_sub(sum, fxp_mult(*a_ptr--, *y_ptr++));
y[Na - 1] = sum;
return sum;
}
float iirOutFloatL(float y[], float x[], float xin, float a[], float b[], int Na, int Nb) {
float *a_ptr, *y_ptr, *b_ptr, *x_ptr;
float sum = 0;
a_ptr = &a[Na - 1];
y_ptr = &y[1];
b_ptr = &b[Nb - 1];
x_ptr = &x[0];
int i, j;
for (i = 0; i < Nb - 1; i++) {
x[i] = x[i+1];
sum += *b_ptr-- * *x_ptr++;
}
x[Nb - 1] = xin;
sum += *b_ptr-- * *x_ptr++;
for (j = 1; j < Na - 1; j++) {
sum -= *a_ptr-- * *y_ptr++;
y[j] = y[j+1];
}
if(Na>1) sum -= *a_ptr-- * *y_ptr++;
y[Na - 1] = sum;
return sum;
}
float iirOutBothL(float yf[], float xf[], float af[], float bf[], float xfin,
fxp_t y[], fxp_t x[], fxp_t a[], fxp_t b[], fxp_t xin, int Na, int Nb) {
fxp_t *a_ptr, *y_ptr, *b_ptr, *x_ptr;
fxp_t sum = 0;
a_ptr = &a[Na - 1];
y_ptr = &y[1];
b_ptr = &b[Nb - 1];
x_ptr = &x[0];
float *af_ptr, *yf_ptr, *bf_ptr, *xf_ptr;
float sumf = 0;
af_ptr = &af[Na - 1];
yf_ptr = &yf[1];
bf_ptr = &bf[Nb - 1];
xf_ptr = &xf[0];
int i, j;
for (i = 0; i < Nb - 1; i++) {
x[i] = x[i+1];
sum = fxp_add(sum, fxp_mult(*b_ptr--, *x_ptr++));
xf[i] = xf[i+1];
sumf += *bf_ptr-- * *xf_ptr++;
}
x[Nb - 1] = xin;
sum = fxp_add(sum, fxp_mult(*b_ptr--, *x_ptr++));
xf[Nb - 1] = xfin;
sumf += *bf_ptr-- * *xf_ptr++;
for (j = 1; j < Na - 1; j++) {
sum = fxp_sub(sum, fxp_mult(*a_ptr--, *y_ptr++));
y[j] = y[j+1];
sumf -= *af_ptr-- * *yf_ptr++;
yf[j] = yf[j+1];
}
if(Na>1) sum = fxp_sub(sum, fxp_mult(*a_ptr--, *y_ptr++));
y[Na - 1] = sum;
if(Na>1) sumf -= *af_ptr-- * *yf_ptr++;
yf[Na - 1] = sumf;
return fxp_to_float(sum) - sumf;
}
float iirOutBothL2(float yf[], float xf[], float af[], float bf[], float xfin,
fxp_t y[], fxp_t x[], fxp_t a[], fxp_t b[], fxp_t xin, int Na, int Nb) {
fxp_t *a_ptr, *y_ptr, *b_ptr, *x_ptr;
fxp_t sum = 0;
a_ptr = &a[Na - 1];
y_ptr = &y[1];
b_ptr = &b[Nb - 1];
x_ptr = &x[0];
float *af_ptr, *yf_ptr, *bf_ptr, *xf_ptr;
float sumf = 0;
af_ptr = &af[Na - 1];
yf_ptr = &yf[1];
bf_ptr = &bf[Nb - 1];
xf_ptr = &xf[0];
int i=0, j=1;
for (i = 0; i < Nb - 1; i++) {
x[i] = x[i+1];
sum = fxp_add(sum, fxp_mult(b[Nb - 1 - i], x[i]));
xf[i] = xf[i+1];
sumf += bf[Nb - 1 - i] * xf[i];
}
x[Nb - 1] = xin;
sum = fxp_add(sum, fxp_mult(b[Nb - 1 - i], x[i]));
xf[Nb - 1] = xfin;
sumf += bf[Nb - 1 - i] * xf[i];
for (j = 1; j < Na - 1; j++) {
sum = fxp_sub(sum, fxp_mult(a[Na - j], y[j]));
y[j] = y[j+1];
sumf -= af[Na - j] * yf[j];
yf[j] = yf[j+1];
}
if(Na>1) sum = fxp_sub(sum, fxp_mult(a[Na - j], y[j]));
y[Na - 1] = sum;
if(Na>1) sumf -= af[Na - j] * yf[j];
yf[Na - 1] = sumf;
return fxp_to_float(sum) - sumf;
}
# 25 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h" 1
# 19 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h"
extern digital_system ds;
extern hardware hw;
extern int generic_timer;
fxp_t fxp_direct_form_1(fxp_t y[], fxp_t x[], fxp_t a[], fxp_t b[], int Na, int Nb) {
fxp_t *a_ptr, *y_ptr, *b_ptr, *x_ptr;
fxp_t sum = 0;
a_ptr = &a[1];
y_ptr = &y[Na - 1];
b_ptr = &b[0];
x_ptr = &x[Nb - 1];
int i, j;
for (i = 0; i < Nb; i++) {
sum = fxp_add(sum, fxp_mult(*b_ptr++, *x_ptr--));
}
for (j = 1; j < Na; j++) {
sum = fxp_sub(sum, fxp_mult(*a_ptr++, *y_ptr--));
}
fxp_verify_overflow_node(sum, "An Overflow Occurred in the node a0");
sum = fxp_div(sum,a[0]);
return fxp_quantize(sum);
}
fxp_t fxp_direct_form_2(fxp_t w[], fxp_t x, fxp_t a[], fxp_t b[], int Na, int Nb) {
fxp_t *a_ptr, *b_ptr, *w_ptr;
fxp_t sum = 0;
a_ptr = &a[1];
b_ptr = &b[0];
w_ptr = &w[1];
int k, j;
for (j = 1; j < Na; j++) {
w[0] = fxp_sub(w[0], fxp_mult(*a_ptr++, *w_ptr++));
}
w[0] = fxp_add(w[0], x);
w[0] = fxp_div(w[0], a[0]);
fxp_verify_overflow_node(w[0], "An Overflow Occurred in the node b0");
w_ptr = &w[0];
for (k = 0; k < Nb; k++) {
sum = fxp_add(sum, fxp_mult(*b_ptr++, *w_ptr++));
}
return fxp_quantize(sum);
}
fxp_t fxp_transposed_direct_form_2(fxp_t w[], fxp_t x, fxp_t a[], fxp_t b[], int Na, int Nb) {
fxp_t *a_ptr, *b_ptr;
fxp_t yout = 0;
a_ptr = &a[1];
b_ptr = &b[0];
int Nw = Na > Nb ? Na : Nb;
yout = fxp_add(fxp_mult(*b_ptr++, x), w[0]);
yout = fxp_div(yout, a[0]);
int j;
for (j = 0; j < Nw - 1; j++) {
w[j] = w[j + 1];
if (j < Na - 1) {
w[j] = fxp_sub(w[j], fxp_mult(*a_ptr++, yout));
}
if (j < Nb - 1) {
w[j] = fxp_add(w[j], fxp_mult(*b_ptr++, x));
}
}
fxp_verify_overflow_node(w[j], "An Overflow Occurred in the node a0");
return fxp_quantize(yout);
}
double double_direct_form_1(double y[], double x[], double a[], double b[], int Na, int Nb) {
double *a_ptr, *y_ptr, *b_ptr, *x_ptr;
double sum = 0;
a_ptr = &a[1];
y_ptr = &y[Na - 1];
b_ptr = &b[0];
x_ptr = &x[Nb - 1];
int i, j;
for (i = 0; i < Nb; i++) {
sum += *b_ptr++ * *x_ptr--;
}
for (j = 1; j < Na; j++) {
sum -= *a_ptr++ * *y_ptr--;
}
sum = (sum / a[0]);
return sum;
}
double double_direct_form_2(double w[], double x, double a[], double b[], int Na, int Nb) {
double *a_ptr, *b_ptr, *w_ptr;
double sum = 0;
a_ptr = &a[1];
b_ptr = &b[0];
w_ptr = &w[1];
int k, j;
for (j = 1; j < Na; j++) {
w[0] -= *a_ptr++ * *w_ptr++;
}
w[0] += x;
w[0] = w[0] / a[0];
w_ptr = &w[0];
for (k = 0; k < Nb; k++) {
sum += *b_ptr++ * *w_ptr++;
}
return sum;
}
double double_transposed_direct_form_2(double w[], double x, double a[], double b[], int Na, int Nb) {
double *a_ptr, *b_ptr;
double yout = 0;
a_ptr = &a[1];
b_ptr = &b[0];
int Nw = Na > Nb ? Na : Nb;
yout = (*b_ptr++ * x) + w[0];
yout = yout / a[0];
int j;
for (j = 0; j < Nw - 1; j++) {
w[j] = w[j + 1];
if (j < Na - 1) {
w[j] -= *a_ptr++ * yout;
}
if (j < Nb - 1) {
w[j] += *b_ptr++ * x;
}
}
return yout;
}
float float_direct_form_1(float y[], float x[], float a[], float b[], int Na, int Nb) {
float *a_ptr, *y_ptr, *b_ptr, *x_ptr;
float sum = 0;
a_ptr = &a[1];
y_ptr = &y[Na - 1];
b_ptr = &b[0];
x_ptr = &x[Nb - 1];
int i, j;
for (i = 0; i < Nb; i++) {
sum += *b_ptr++ * *x_ptr--;
}
for (j = 1; j < Na; j++) {
sum -= *a_ptr++ * *y_ptr--;
}
sum = (sum / a[0]);
return sum;
}
float float_direct_form_2(float w[], float x, float a[], float b[], int Na, int Nb) {
float *a_ptr, *b_ptr, *w_ptr;
float sum = 0;
a_ptr = &a[1];
b_ptr = &b[0];
w_ptr = &w[1];
int k, j;
for (j = 1; j < Na; j++) {
w[0] -= *a_ptr++ * *w_ptr++;
}
w[0] += x;
w[0] = w[0] / a[0];
w_ptr = &w[0];
for (k = 0; k < Nb; k++) {
sum += *b_ptr++ * *w_ptr++;
}
return sum;
}
float float_transposed_direct_form_2(float w[], float x, float a[], float b[], int Na, int Nb) {
float *a_ptr, *b_ptr;
float yout = 0;
a_ptr = &a[1];
b_ptr = &b[0];
int Nw = Na > Nb ? Na : Nb;
yout = (*b_ptr++ * x) + w[0];
yout = yout / a[0];
int j;
for (j = 0; j < Nw - 1; j++) {
w[j] = w[j + 1];
if (j < Na - 1) {
w[j] -= *a_ptr++ * yout;
}
if (j < Nb - 1) {
w[j] += *b_ptr++ * x;
}
}
return yout;
}
double double_direct_form_1_MSP430(double y[], double x[], double a[], double b[], int Na, int Nb){
int timer1 = 0;
double *a_ptr, *y_ptr, *b_ptr, *x_ptr;
double sum = 0;
a_ptr = &a[1];
y_ptr = &y[Na-1];
b_ptr = &b[0];
x_ptr = &x[Nb-1];
int i, j;
timer1 += 91;
for (i = 0; i < Nb; i++){
sum += *b_ptr++ * *x_ptr--;
timer1 += 47;
}
for (j = 1; j < Na; j++){
sum -= *a_ptr++ * *y_ptr--;
timer1 += 57;
}
timer1 += 3;
# 235 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h" 3 4
((void) sizeof ((
# 235 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h"
(double) timer1 * hw.cycle <= ds.sample_time
# 235 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 235 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h"
(double) timer1 * hw.cycle <= ds.sample_time
# 235 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h" 3 4
) ; else __assert_fail (
# 235 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h"
"(double) timer1 * hw.cycle <= ds.sample_time"
# 235 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h", 235, __extension__ __PRETTY_FUNCTION__); }))
# 235 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h"
;
return sum;
}
double double_direct_form_2_MSP430(double w[], double x, double a[], double b[], int Na, int Nb) {
int timer1 = 0;
double *a_ptr, *b_ptr, *w_ptr;
double sum = 0;
a_ptr = &a[1];
b_ptr = &b[0];
w_ptr = &w[1];
int k, j;
timer1 += 71;
for (j = 1; j < Na; j++) {
w[0] -= *a_ptr++ * *w_ptr++;
timer1 += 54;
}
w[0] += x;
w[0] = w[0] / a[0];
w_ptr = &w[0];
for (k = 0; k < Nb; k++) {
sum += *b_ptr++ * *w_ptr++;
timer1 += 46;
}
timer1 += 38;
# 262 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h" 3 4
((void) sizeof ((
# 262 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h"
(double) timer1 * hw.cycle <= ds.sample_time
# 262 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 262 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h"
(double) timer1 * hw.cycle <= ds.sample_time
# 262 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h" 3 4
) ; else __assert_fail (
# 262 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h"
"(double) timer1 * hw.cycle <= ds.sample_time"
# 262 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h", 262, __extension__ __PRETTY_FUNCTION__); }))
# 262 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h"
;
return sum;
}
double double_transposed_direct_form_2_MSP430(double w[], double x, double a[], double b[], int Na, int Nb) {
int timer1 = 0;
double *a_ptr, *b_ptr;
double yout = 0;
a_ptr = &a[1];
b_ptr = &b[0];
int Nw = Na > Nb ? Na : Nb;
yout = (*b_ptr++ * x) + w[0];
int j;
timer1 += 105;
for (j = 0; j < Nw - 1; j++) {
w[j] = w[j + 1];
if (j < Na - 1) {
w[j] -= *a_ptr++ * yout;
timer1 += 41;
}
if (j < Nb - 1) {
w[j] += *b_ptr++ * x;
timer1 += 38;
}
timer1 += 54;
}
timer1 += 7;
# 291 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h" 3 4
((void) sizeof ((
# 291 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h"
(double) timer1 * hw.cycle <= ds.sample_time
# 291 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 291 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h"
(double) timer1 * hw.cycle <= ds.sample_time
# 291 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h" 3 4
) ; else __assert_fail (
# 291 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h"
"(double) timer1 * hw.cycle <= ds.sample_time"
# 291 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h", 291, __extension__ __PRETTY_FUNCTION__); }))
# 291 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/realizations.h"
;
return yout;
}
double generic_timing_double_direct_form_1(double y[], double x[], double a[], double b[], int Na, int Nb){
generic_timer += ((6 * hw.assembly.push) + (3 * hw.assembly.in) + (1 * hw.assembly.sbiw) + (1 * hw.assembly.cli) + (3 * hw.assembly.out) + (12 * hw.assembly.std));
double *a_ptr, *y_ptr, *b_ptr, *x_ptr;
double sum = 0;
a_ptr = &a[1];
y_ptr = &y[Na-1];
b_ptr = &b[0];
x_ptr = &x[Nb-1];
generic_timer += ((12 * hw.assembly.std) + (12 * hw.assembly.ldd) + (2 * hw.assembly.subi) + (2 * hw.assembly.sbci) + (4 * hw.assembly.lsl) + (4 * hw.assembly.rol) + (2 * hw.assembly.add) + (2 * hw.assembly.adc) + (1 * hw.assembly.adiw));
int i, j;
generic_timer += ((2 * hw.assembly.std) + (1 * hw.assembly.rjmp));
for (i = 0; i < Nb; i++){
generic_timer += ((20 * hw.assembly.ldd) + (24 * hw.assembly.mov) + (2 * hw.assembly.subi) + (1 * hw.assembly.sbci) + (1 * hw.assembly.sbc) + (10 * hw.assembly.std) + (2 * hw.assembly.ld) + (2 * hw.assembly.rcall) + (1 * hw.assembly.adiw) + (1 * hw.assembly.cp) + (1 * hw.assembly.cpc) + (1 * hw.assembly.adiw) + (1 * hw.assembly.brge) + (1 * hw.assembly.rjmp));
sum += *b_ptr++ * *x_ptr--;
}
generic_timer += ((2 * hw.assembly.ldi) + (2 * hw.assembly.std) + (1 * hw.assembly.rjmp));
for (j = 1; j < Na; j++){
generic_timer += ((22 * hw.assembly.ldd) + (24 * hw.assembly.mov) + (2 * hw.assembly.subi) + (8 * hw.assembly.std) + (1 * hw.assembly.sbci) + (2 * hw.assembly.ld) + (2 * hw.assembly.rcall) + (1 * hw.assembly.sbc) + (1 * hw.assembly.adiw) + (1 * hw.assembly.cp) + (1 * hw.assembly.cpc) + (1 * hw.assembly.adiw) + (1 * hw.assembly.brge) + (1 * hw.assembly.rjmp));
sum -= *a_ptr++ * *y_ptr--;
}
generic_timer += ((4 * hw.assembly.ldd) + (4 * hw.assembly.mov) + (1 * hw.assembly.adiw) + (1 * hw.assembly.in) + (1 * hw.assembly.cli) + (3 * hw.assembly.out) + (6 * hw.assembly.pop) + (1 * hw.assembly.ret));
return sum;
}
double generic_timing_double_direct_form_2(double w[], double x, double a[], double b[], int Na, int Nb) {
generic_timer += ((8 * hw.assembly.push) + (14 * hw.assembly.std) + (3 * hw.assembly.out) + (3 * hw.assembly.in) + (1 * hw.assembly.sbiw) + (1 * hw.assembly.cli));
double *a_ptr, *b_ptr, *w_ptr;
double sum = 0;
a_ptr = &a[1];
b_ptr = &b[0];
w_ptr = &w[1];
int k, j;
generic_timer += ((10 * hw.assembly.std) + (6 * hw.assembly.ldd) + (2 * hw.assembly.adiw));
generic_timer += ((2 * hw.assembly.ldi) + (2 * hw.assembly.std) + (1 * hw.assembly.rjmp));
for (j = 1; j < Na; j++) {
w[0] -= *a_ptr++ * *w_ptr++;
generic_timer += ((23 * hw.assembly.ldd) + (32 * hw.assembly.mov) + (9 * hw.assembly.std) + (2 * hw.assembly.subi) + (3 * hw.assembly.ld) + (2 * hw.assembly.rcall) + (2 * hw.assembly.sbci) + (1 * hw.assembly.st) + (1 * hw.assembly.adiw) + (1 * hw.assembly.cp) + (1 * hw.assembly.cpc) + (1 * hw.assembly.brge));
}
w[0] += x;
w_ptr = &w[0];
generic_timer += ((13 * hw.assembly.ldd) + (12 * hw.assembly.mov) + (5 * hw.assembly.std) + (1 * hw.assembly.st) + (1 * hw.assembly.ld) + (1 * hw.assembly.rcall));
generic_timer += ((2 * hw.assembly.std) + (1 * hw.assembly.rjmp));
for (k = 0; k < Nb; k++) {
sum += *b_ptr++ * *w_ptr++;
generic_timer += ((20 * hw.assembly.ldd) + (24 * hw.assembly.mov) + (10 * hw.assembly.std) + (2 * hw.assembly.rcall) + (2 * hw.assembly.ld) + (2 * hw.assembly.subi) + (2 * hw.assembly.sbci) + (1 * hw.assembly.adiw) + (1 * hw.assembly.cp) + (1 * hw.assembly.cpc) + (1 * hw.assembly.brge) + (1 * hw.assembly.rjmp));
}
generic_timer += ((4 * hw.assembly.ldd) + (4 * hw.assembly.mov) + (1 * hw.assembly.adiw) + (1 * hw.assembly.in) + (1 * hw.assembly.cli) + (3 * hw.assembly.out) + (8 * hw.assembly.pop) + (1 * hw.assembly.ret));
return sum;
}
double generic_timing_double_transposed_direct_form_2(double w[], double x, double a[], double b[], int Na, int Nb) {
generic_timer += ((8 * hw.assembly.push) + (14 * hw.assembly.std) + (3 * hw.assembly.out) + (3 * hw.assembly.in) + (1 * hw.assembly.sbiw) + (1 * hw.assembly.cli));
double *a_ptr, *b_ptr;
double yout = 0;
a_ptr = &a[1];
b_ptr = &b[0];
int Nw = Na > Nb ? Na : Nb;
yout = (*b_ptr++ * x) + w[0];
int j;
generic_timer += ((15 * hw.assembly.std) + (22 * hw.assembly.ldd) + (24 * hw.assembly.mov) + (2 * hw.assembly.rcall) + (2 * hw.assembly.ld) + (1 * hw.assembly.cp) + (1 * hw.assembly.cpc) + (1 * hw.assembly.subi) + (1 * hw.assembly.sbci) + (1 * hw.assembly.brge) + (1 * hw.assembly.adiw));
generic_timer += ((2 * hw.assembly.std) + (1 * hw.assembly.rjmp));
for (j = 0; j < Nw - 1; j++) {
w[j] = w[j + 1];
if (j < Na - 1) {
w[j] -= *a_ptr++ * yout;
}
if (j < Nb - 1) {
w[j] += *b_ptr++ * x;
}
generic_timer += ((70 * hw.assembly.mov) + (65 * hw.assembly.ldd) + (12 * hw.assembly.lsl) + (12 * hw.assembly.rol) + (15 * hw.assembly.std) + (6 * hw.assembly.add) + (6 * hw.assembly.adc) + (2 * hw.assembly.adiw) + (3 * hw.assembly.cpc) + (3 * hw.assembly.cp) + (5 * hw.assembly.ld) + (4 * hw.assembly.rcall) + (5 * hw.assembly.subi) + (3 * hw.assembly.rjmp) + (2 * hw.assembly.brlt) + (3 * hw.assembly.st) + (2 * hw.assembly.sbci) + (3 * hw.assembly.sbc) + (1 * hw.assembly.brge));
}
generic_timer += ((4 * hw.assembly.ldd) + (4 * hw.assembly.mov) + (8 * hw.assembly.pop) + (3 * hw.assembly.out) + (1 * hw.assembly.in) + (1 * hw.assembly.cli) + (1 * hw.assembly.adiw) + (1 * hw.assembly.ret));
return yout;
}
void double_direct_form_1_impl2(double x[], int x_size, double b[], int b_size, double a[], int a_size, double y[]){
int i = 0; int j = 0;
double v[x_size];
for(i = 0; i < x_size; i++){
v[i] = 0;
for(j = 0; j < b_size; j++){
if (j > i) break;
v[i] = v[i] + x[i-j] * b[j];
}
}
y[0] = v[0];
for(i = 1; i < x_size; i++){
y[i] = 0;
y[i] = y[i] + v[i];
for(j = 1; j < a_size; j++){
if (j > i) break;
y[i] = y[i] + y[i-j] * ((-1) * a[j]);
}
}
}
void fxp_direct_form_1_impl2(fxp_t x[], int x_size, fxp_t b[], int b_size, fxp_t a[], int a_size, fxp_t y[]){
int i = 0; int j = 0;
fxp_t v[x_size];
for(i = 0; i < x_size; i++){
v[i] = 0;
for(j = 0; j < b_size; j++){
if (j > i) break;
v[i] = fxp_add(v[i], fxp_mult(x[i-j], b[j]));
}
}
y[0] = v[0];
for(i = 1; i < x_size; i++){
y[i] = 0;
y[i] = fxp_add(y[i], v[i]);
for(j = 1; j < a_size; j++){
if (j > i) break;
y[i] = fxp_add(y[i], fxp_mult(y[i-j] , -a[j]));
}
}
}
# 26 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/delta-operator.h" 1
# 19 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/delta-operator.h"
# 1 "/usr/include/assert.h" 1 3 4
# 20 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/delta-operator.h" 2
# 1 "/usr/include/assert.h" 1 3 4
# 23 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/delta-operator.h" 2
int nchoosek(int n, int k){
if (k == 0)
return 1;
return (n * nchoosek(n - 1, k - 1)) / k;
}
void generate_delta_coefficients(double vetor[], double out[], int n, double delta){
int i,j;
int N = n - 1;
double sum_delta_operator;
for(i=0; i<=N; i++)
{
sum_delta_operator = 0;
for(j=0; j<=i; j++)
{
sum_delta_operator = sum_delta_operator + vetor[j]*nchoosek(N-j,i-j);
}
out[i] = internal_pow(delta,N-i)*sum_delta_operator;
}
}
void get_delta_transfer_function(double b[], double b_out[], int b_size, double a[], double a_out[], int a_size, double delta){
generate_delta_coefficients(b, b_out, b_size, delta);
generate_delta_coefficients(a, a_out, a_size, delta);
}
void get_delta_transfer_function_with_base(double b[], double b_out[], int b_size, double a[], double a_out[], int a_size, double delta){
int i,j;
int N = a_size - 1;
int M = b_size - 1;
double sum_delta_operator;
for(i=0; i<=N; i++)
{
sum_delta_operator = 0;
for(j=0; j<=i; j++)
{
sum_delta_operator = sum_delta_operator + a[j]*nchoosek(N-j,i-j);
}
a_out[i] = internal_pow(delta,N-i)*sum_delta_operator;
}
for(i=0; i<=M; i++)
{
sum_delta_operator = 0;
for(j=0; j<=i; j++)
{
sum_delta_operator = sum_delta_operator + b[j]*nchoosek(M-j,i-j);
}
b_out[i] = internal_pow(delta,M-i)*sum_delta_operator;
}
}
# 27 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/closed-loop.h" 1
# 28 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/closed-loop.h"
void ft_closedloop_series(double c_num[], int Nc_num, double c_den[], int Nc_den, double model_num[], int Nmodel_num, double model_den[], int Nmodel_den, double ans_num[], int Nans_num, double ans_den[], int Nans_den){
Nans_num = Nc_num + Nmodel_num - 1;
Nans_den = Nc_den + Nmodel_den - 1 ;
double den_mult [Nans_den];
poly_mult(c_num, Nc_num, model_num, Nmodel_num, ans_num, Nans_num);
poly_mult(c_den, Nc_den, model_den, Nmodel_den, den_mult, Nans_den );
poly_sum(ans_num, Nans_num , den_mult, Nans_den , ans_den, Nans_den);
}
void ft_closedloop_sensitivity(double c_num[], int Nc_num, double c_den[], int Nc_den, double model_num[], int Nmodel_num, double model_den[], int Nmodel_den, double ans_num[], int Nans_num, double ans_den[], int Nans_den){
int Nans_num_p = Nc_num + Nmodel_num-1;
Nans_den = Nc_den + Nmodel_den-1;
Nans_num = Nc_den + Nmodel_den-1;
double num_mult [Nans_num_p];
poly_mult(c_den, Nc_den, model_den, Nmodel_den, ans_num, Nans_num);
poly_mult(c_num, Nc_num, model_num, Nmodel_num, num_mult, Nans_num_p);
poly_sum(ans_num, Nans_num, num_mult, Nans_num_p, ans_den, Nans_den);
}
void ft_closedloop_feedback(double c_num[], int Nc_num, double c_den[], int Nc_den, double model_num[], int Nmodel_num, double model_den[], int Nmodel_den, double ans_num[], int Nans_num, double ans_den[], int Nans_den){
Nans_num = Nc_den + Nmodel_num - 1;
Nans_den = Nc_den + Nmodel_den - 1;
int Nnum_mult = Nc_num + Nmodel_num - 1;
double den_mult [Nans_den];
double num_mult [Nnum_mult];
poly_mult(c_num, Nc_num, model_num, Nmodel_num, num_mult, Nnum_mult);
poly_mult(c_den, Nc_den, model_den, Nmodel_den, den_mult, Nans_den);
poly_sum(num_mult, Nnum_mult, den_mult, Nans_den, ans_den, Nans_den);
poly_mult(c_den, Nc_den, model_num, Nmodel_num, ans_num, Nans_num);
}
int check_stability_closedloop(double a[], int n, double plant_num[], int p_num_size, double plant_den[], int p_den_size){
int columns = n;
double m[2 * n - 1][n];
int i,j;
int first_is_positive = 0;
double * p_num = plant_num;
double * p_den = plant_den;
double sum = 0;
for (i=0; i < n; i++){
sum += a[i];
}
__DSVERIFIER_assert(sum > 0);
sum = 0;
for (i=0; i < n; i++){
sum += a[i] * internal_pow(-1, n-1-i);
}
sum = sum * internal_pow(-1, n-1);
__DSVERIFIER_assert(sum > 0);
__DSVERIFIER_assert(internal_abs(a[n-1]) < a[0]);
for (i=0; i < 2 * n - 1; i++){
for (j=0; j < columns; j++){
m[i][j] = 0;
if (i == 0){
m[i][j] = a[j];
continue;
}
if (i % 2 != 0 ){
int x;
for(x=0; x<columns;x++){
m[i][x] = m[i-1][columns-x-1];
}
columns = columns - 1;
j = columns;
}else{
__DSVERIFIER_assert(m[i-2][0] > 0);
m[i][j] = m[i-2][j] - (m[i-2][columns] / m[i-2][0]) * m[i-1][j];
__DSVERIFIER_assert((m[0][0] >= 0) && (m[i][0] >= 0));
}
}
}
return 1;
}
# 28 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/initialization.h" 1
# 17 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/initialization.h"
extern digital_system ds;
extern digital_system plant;
extern digital_system control;
extern implementation impl;
extern filter_parameters filter;
extern hardware hw;
void initialization(){
if (impl.frac_bits >= 32){
printf("impl.frac_bits must be less than word width!\n");
}
if (impl.int_bits >= 32 - impl.frac_bits){
printf("impl.int_bits must be less than word width subtracted by precision!\n");
# 33 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/initialization.h" 3 4
((void) sizeof ((
# 33 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/initialization.h"
0
# 33 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/initialization.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 33 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/initialization.h"
0
# 33 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/initialization.h" 3 4
) ; else __assert_fail (
# 33 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/initialization.h"
"0"
# 33 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/initialization.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/initialization.h", 33, __extension__ __PRETTY_FUNCTION__); }))
# 33 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/initialization.h"
;
}
if(impl.frac_bits >= 31){
_fxp_one = 0x7fffffff;
}else{
_fxp_one = (0x00000001 << impl.frac_bits);
}
_fxp_half = (0x00000001 << (impl.frac_bits - 1));
_fxp_minus_one = -(0x00000001 << impl.frac_bits);
_fxp_min = -(0x00000001 << (impl.frac_bits + impl.int_bits - 1));
_fxp_max = (0x00000001 << (impl.frac_bits + impl.int_bits - 1)) - 1;
_fxp_fmask = ((((int32_t) 1) << impl.frac_bits) - 1);
_fxp_imask = ((0x80000000) >> (32 - impl.frac_bits - 1));
_dbl_min = _fxp_min;
_dbl_min /= (1 << impl.frac_bits);
_dbl_max = _fxp_max;
_dbl_max /= (1 << impl.frac_bits);
if ((impl.scale == 0) || (impl.scale == 1)){
impl.scale = 1;
return;
}
if (impl.min != 0){
impl.min = impl.min / impl.scale;
}
if (impl.max != 0){
impl.max = impl.max / impl.scale;
}
# 80 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/initialization.h"
}
# 29 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/state-space.h" 1
# 19 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/state-space.h"
extern digital_system_state_space _controller;
extern int nStates;
extern int nInputs;
extern int nOutputs;
double double_state_space_representation(void){
double result1[4][4];
double result2[4][4];
int i, j;
for(i=0; i<4;i++){
for(j=0; j<4;j++){
result1[i][j]=0;
result2[i][j]=0;
}
}
double_matrix_multiplication(nOutputs,nStates,nStates,1,_controller.C,_controller.states,result1);
double_matrix_multiplication(nOutputs,nInputs,nInputs,1,_controller.D,_controller.inputs,result2);
double_add_matrix(nOutputs,
1,
result1,
result2,
_controller.outputs);
double_matrix_multiplication(nStates,nStates,nStates,1,_controller.A,_controller.states,result1);
double_matrix_multiplication(nStates,nInputs,nInputs,1,_controller.B,_controller.inputs,result2);
double_add_matrix(nStates,
1,
result1,
result2,
_controller.states);
return _controller.outputs[0][0];
}
double fxp_state_space_representation(void){
fxp_t result1[4][4];
fxp_t result2[4][4];
int i, j;
for(i=0; i<4;i++){
for(j=0; j<4;j++){
result1[i][j]=0;
result2[i][j]=0;
}
}
fxp_t A_fpx[4][4];
fxp_t B_fpx[4][4];
fxp_t C_fpx[4][4];
fxp_t D_fpx[4][4];
fxp_t states_fpx[4][4];
fxp_t inputs_fpx[4][4];
fxp_t outputs_fpx[4][4];
for(i=0; i<4;i++){
for(j=0; j<4;j++){
A_fpx[i][j]=0;
}
}
for(i=0; i<4;i++){
for(j=0; j<4;j++){
B_fpx[i][j]=0;
}
}
for(i=0; i<4;i++){
for(j=0; j<4;j++){
C_fpx[i][j]=0;
}
}
for(i=0; i<4;i++){
for(j=0; j<4;j++){
D_fpx[i][j]=0;
}
}
for(i=0; i<4;i++){
for(j=0; j<4;j++){
states_fpx[i][j]=0;
}
}
for(i=0; i<4;i++){
for(j=0; j<4;j++){
inputs_fpx[i][j]=0;
}
}
for(i=0; i<4;i++){
for(j=0; j<4;j++){
outputs_fpx[i][j]=0;
}
}
for(i=0; i<nStates;i++){
for(j=0; j<nStates;j++){
A_fpx[i][j]= fxp_double_to_fxp(_controller.A[i][j]);
}
}
for(i=0; i<nStates;i++){
for(j=0; j<nInputs;j++){
B_fpx[i][j]= fxp_double_to_fxp(_controller.B[i][j]);
}
}
for(i=0; i<nOutputs;i++){
for(j=0; j<nStates;j++){
C_fpx[i][j]= fxp_double_to_fxp(_controller.C[i][j]);
}
}
for(i=0; i<nOutputs;i++){
for(j=0; j<nInputs;j++){
D_fpx[i][j]= fxp_double_to_fxp(_controller.D[i][j]);
}
}
for(i=0; i<nStates;i++){
for(j=0; j<1;j++){
states_fpx[i][j]= fxp_double_to_fxp(_controller.states[i][j]);
}
}
for(i=0; i<nInputs;i++){
for(j=0; j<1;j++){
inputs_fpx[i][j]= fxp_double_to_fxp(_controller.inputs[i][j]);
}
}
for(i=0; i<nOutputs;i++){
for(j=0; j<1;j++){
outputs_fpx[i][j]= fxp_double_to_fxp(_controller.outputs[i][j]);
}
}
fxp_matrix_multiplication(nOutputs,nStates,nStates,1,C_fpx,states_fpx,result1);
fxp_matrix_multiplication(nOutputs,nInputs,nInputs,1,D_fpx,inputs_fpx,result2);
fxp_add_matrix(nOutputs,
1,
result1,
result2,
outputs_fpx);
fxp_matrix_multiplication(nStates,nStates,nStates,1,A_fpx,states_fpx,result1);
fxp_matrix_multiplication(nStates,nInputs,nInputs,1,B_fpx,inputs_fpx,result2);
fxp_add_matrix(nStates,
1,
result1,
result2,
states_fpx);
for(i=0; i<nStates;i++){
for(j=0; j<1;j++){
_controller.states[i][j]= fxp_to_double(states_fpx[i][j]);
}
}
for(i=0; i<nOutputs;i++){
for(j=0; j<1;j++){
_controller.outputs[i][j]= fxp_to_double(outputs_fpx[i][j]);
}
}
return _controller.outputs[0][0];
}
# 30 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/filter_functions.h" 1
# 20 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/core/filter_functions.h"
double sinTyl(double x, int precision){
double sine;
double xsquared = x*x;
double aux;
if (precision < 0)
{
printf("Warning: Function sinTyl from bmc/core/filter_functions.h: "
"Precision must be a positive integer. Assuming 0 precision\n");
precision = 0;
}
if (precision >= 0)
{
aux = 0;
sine = aux;
if (precision >= 1)
{
aux = x;
sine += aux;
if (precision >= 2)
{
aux = aux*xsquared;
sine -= aux/6;
if (precision >= 3)
{
aux = aux*xsquared;
sine +=aux/120;
if(precision >=4)
{
aux = aux*xsquared;
sine -=aux/5040;
if(precision >= 5)
{
aux = aux*xsquared;
sine +=aux/362880;
if(precision >= 6)
{
aux = aux*xsquared;
sine -=aux/39916800;
if (precision >= 7)
printf("Warning: Function sinTyl "
"from bmc/core/filter_functions.h: Precision "
"representation exceeded. Assuming maximum precision of 6\n");
}
}
}
}
}
}
}
return sine;
}
double cosTyl(double x, int precision){
double cosine;
double xsquared = x*x;
double aux;
if (precision < 0)
{
printf("Warning: Function cosTyl from bmc/core/filter_functions.h: "
"Precision must be a positive integer. Assuming 0 precision\n");
precision = 0;
}
if (precision >= 0)
{
aux = 0;
cosine = aux;
if (precision >= 1)
{
aux = 1;
cosine = 1;
if (precision >= 2)
{
aux = xsquared;
cosine -= aux/2;
if (precision >= 3)
{
aux = aux*xsquared;
cosine += aux/24;
if(precision >=4)
{
aux = aux*xsquared;
cosine -=aux/720;
if(precision >= 5)
{
aux = aux*xsquared;
cosine +=aux/40320;
if(precision >= 6)
{
aux = aux*xsquared;
cosine -=aux/3628800;
if (precision >= 7) printf("Warning: Function sinTyl "
"from bmc/core/filter_functions.h: Precision "
"representation exceeded. Assuming maximum precision of 6\n");
}
}
}
}
}
}
}
return cosine;
}
double atanTyl(double x, int precision){
double atangent;
double xsquared = x*x;
double aux;
if (precision < 0)
{
printf("Warning: Function sinTyl from bmc/core/filter_functions.h: "
"Precision must be a positive integer. Assuming 0 precision\n");
precision = 0;
}
if (precision >= 0)
{
aux = 0;
atangent = aux;
if (precision >= 1)
{
aux = x;
atangent = aux;
if (precision >= 2)
{
aux = xsquared;
atangent -= aux/3;
if (precision >= 3)
{
aux = aux*xsquared;
atangent += aux/5;
if(precision >=4)
{
aux = aux*xsquared;
atangent -=aux/7;
if (precision >= 7)
printf("Warning: Function sinTyl from bmc/core/filter_functions.h: "
"Precision representation exceeded. Assuming maximum precision of 4\n");
}
}
}
}
}
return atangent;
}
float sqrt1(const float x)
{
const float xhalf = 0.5f*x;
union
{
float x;
int i;
} u;
u.x = x;
u.i = 0x5f3759df - (u.i >> 1);
return x*u.x*(1.5f - xhalf*u.x*u.x);
}
float sqrt2(const float x)
{
union
{
int i;
float x;
} u;
u.x = x;
u.i = (1<<29) + (u.i >> 1) - (1<<22);
return u.x;
}
float fabsolut(float x)
{
if (x < 0)
x = -x;
return x;
}
static float sqrt3(float val)
{
float x = val/10;
float dx;
double diff;
double min_tol = 0.00001;
int i, flag;
flag = 0;
if (val == 0 ) x = 0;
else
{
for (i=1;i<20;i++)
{
if (!flag)
{
dx = (val - (x*x)) / (2.0 * x);
x = x + dx;
diff = val - (x*x);
if (fabsolut(diff) <= min_tol) flag = 1;
}
else x =x;
}
}
return (x);
}
# 31 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_overflow.h" 1
# 19 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_overflow.h"
int nondet_int();
float nondet_float();
extern digital_system ds;
extern implementation impl;
int verify_overflow(void) {
fxp_t a_fxp[ds.a_size];
fxp_t b_fxp[ds.b_size];
fxp_double_to_fxp_array(ds.a, a_fxp, ds.a_size);
fxp_double_to_fxp_array(ds.b, b_fxp, ds.b_size);
# 73 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_overflow.h"
fxp_t min_fxp = fxp_double_to_fxp(impl.min);
fxp_t max_fxp = fxp_double_to_fxp(impl.max);
fxp_t y[X_SIZE_VALUE];
fxp_t x[X_SIZE_VALUE];
int i;
for (i = 0; i < X_SIZE_VALUE; ++i) {
y[i] = 0;
x[i] = nondet_int();
__DSVERIFIER_assume(x[i] >= min_fxp && x[i] <= max_fxp);
}
int Nw = 0;
Nw = ds.a_size > ds.b_size ? ds.a_size : ds.b_size;
fxp_t yaux[ds.a_size];
fxp_t xaux[ds.b_size];
fxp_t waux[Nw];
for (i = 0; i < ds.a_size; ++i) {
yaux[i] = 0;
}
for (i = 0; i < ds.b_size; ++i) {
xaux[i] = 0;
}
for (i = 0; i < Nw; ++i) {
waux[i] = 0;
}
fxp_t xk, temp;
fxp_t *aptr, *bptr, *xptr, *yptr, *wptr;
int j;
for (i = 0; i < X_SIZE_VALUE; ++i) {
shiftL(x[i], xaux, ds.b_size);
y[i] = fxp_direct_form_1(yaux, xaux, a_fxp, b_fxp, ds.a_size, ds.b_size);
shiftL(y[i], yaux, ds.a_size);
# 174 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_overflow.h"
}
overflow_mode = 1;
fxp_verify_overflow_array(y, X_SIZE_VALUE);
return 0;
}
# 33 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h" 1
# 15 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h"
extern digital_system ds;
extern implementation impl;
extern digital_system_state_space _controller;
extern int nStates;
extern int nInputs;
extern int nOutputs;
int verify_limit_cycle_state_space(void){
double stateMatrix[4][4];
double outputMatrix[4][4];
double arrayLimitCycle[4];
double result1[4][4];
double result2[4][4];
int i, j, k;
for(i=0; i<4;i++){
for(j=0; j<4;j++){
result1[i][j]=0;
result2[i][j]=0;
stateMatrix[i][j]=0;
outputMatrix[i][j]=0;
}
}
double_matrix_multiplication(nOutputs,nStates,nStates,1,_controller.C,_controller.states,result1);
double_matrix_multiplication(nOutputs,nInputs,nInputs,1,_controller.D,_controller.inputs,result2);
double_add_matrix(nOutputs,
1,
result1,
result2,
_controller.outputs);
k = 0;
for (i = 1; i < 0; i++) {
double_matrix_multiplication(nStates,nStates,nStates,1,_controller.A,_controller.states,result1);
double_matrix_multiplication(nStates,nInputs,nInputs,1,_controller.B,_controller.inputs,result2);
double_add_matrix(nStates,
1,
result1,
result2,
_controller.states);
double_matrix_multiplication(nOutputs,nStates,nStates,1,_controller.C,_controller.states,result1);
double_matrix_multiplication(nOutputs,nInputs,nInputs,1,_controller.D,_controller.inputs,result2);
double_add_matrix(nOutputs,
1,
result1,
result2,
_controller.outputs);
int l;
for(l = 0; l < nStates; l++){
stateMatrix[l][k] = _controller.states[l][0];
}
for(l = 0; l < nOutputs; l++){
stateMatrix[l][k] = _controller.outputs[l][0];
}
k++;
}
printf("#matrix STATES -------------------------------");
print_matrix(stateMatrix,nStates,0);
printf("#matrix OUTPUTS -------------------------------");
print_matrix(outputMatrix,nOutputs,0);
# 93 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h" 3 4
((void) sizeof ((
# 93 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h"
0
# 93 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 93 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h"
0
# 93 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h" 3 4
) ; else __assert_fail (
# 93 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h"
"0"
# 93 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h", 93, __extension__ __PRETTY_FUNCTION__); }))
# 93 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h"
;
for(i=0; i<nStates;i++){
for(j=0; j<0;j++){
arrayLimitCycle[j] = stateMatrix[i][j];
}
double_check_persistent_limit_cycle(arrayLimitCycle,0);
}
for(i=0; i<nOutputs;i++){
for(j=0; j<0;j++){
arrayLimitCycle[j] = outputMatrix[i][j];
}
double_check_persistent_limit_cycle(arrayLimitCycle,0);
}
# 110 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h" 3 4
((void) sizeof ((
# 110 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h"
0
# 110 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 110 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h"
0
# 110 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h" 3 4
) ; else __assert_fail (
# 110 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h"
"0"
# 110 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h", 110, __extension__ __PRETTY_FUNCTION__); }))
# 110 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h"
;
}
int verify_limit_cycle(void){
overflow_mode = 3;
int i;
int Set_xsize_at_least_two_times_Na = 2 * ds.a_size;
printf("X_SIZE must be at least 2 * ds.a_size");
__DSVERIFIER_assert(X_SIZE_VALUE >= Set_xsize_at_least_two_times_Na);
fxp_t a_fxp[ds.a_size];
fxp_t b_fxp[ds.b_size];
fxp_double_to_fxp_array(ds.a, a_fxp, ds.a_size);
fxp_double_to_fxp_array(ds.b, b_fxp, ds.b_size);
# 168 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h"
fxp_t y[X_SIZE_VALUE];
fxp_t x[X_SIZE_VALUE];
fxp_t min_fxp = fxp_double_to_fxp(impl.min);
fxp_t max_fxp = fxp_double_to_fxp(impl.max);
fxp_t xaux[ds.b_size];
int nondet_constant_input = nondet_int();
__DSVERIFIER_assume(nondet_constant_input >= min_fxp && nondet_constant_input <= max_fxp);
for (i = 0; i < X_SIZE_VALUE; ++i) {
x[i] = nondet_constant_input;
y[i] = 0;
}
for (i = 0; i < ds.b_size; ++i) {
xaux[i] = nondet_constant_input;
}
int Nw = 0;
Nw = ds.a_size > ds.b_size ? ds.a_size : ds.b_size;
fxp_t yaux[ds.a_size];
fxp_t y0[ds.a_size];
fxp_t waux[Nw];
fxp_t w0[Nw];
for (i = 0; i < ds.a_size; ++i) {
yaux[i] = nondet_int();
__DSVERIFIER_assume(yaux[i] >= min_fxp && yaux[i] <= max_fxp);
y0[i] = yaux[i];
}
# 213 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h"
fxp_t xk, temp;
fxp_t *aptr, *bptr, *xptr, *yptr, *wptr;
int j;
for(i=0; i<X_SIZE_VALUE; ++i){
shiftL(x[i], xaux, ds.b_size);
y[i] = fxp_direct_form_1(yaux, xaux, a_fxp, b_fxp, ds.a_size, ds.b_size);
shiftL(y[i], yaux, ds.a_size);
# 278 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle.h"
}
fxp_check_persistent_limit_cycle(y, X_SIZE_VALUE);
return 0;
}
# 34 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error.h" 1
# 17 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error.h"
extern digital_system ds;
extern implementation impl;
int verify_error(void){
overflow_mode = 2;
double a_cascade[100];
int a_cascade_size;
double b_cascade[100];
int b_cascade_size;
fxp_t a_fxp[ds.a_size];
fxp_t b_fxp[ds.b_size];
fxp_double_to_fxp_array(ds.a, a_fxp, ds.a_size);
fxp_double_to_fxp_array(ds.b, b_fxp, ds.b_size);
# 69 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error.h"
fxp_t min_fxp = fxp_double_to_fxp(impl.min);
fxp_t max_fxp = fxp_double_to_fxp(impl.max);
fxp_t y[X_SIZE_VALUE];
fxp_t x[X_SIZE_VALUE];
double yf[X_SIZE_VALUE];
double xf[X_SIZE_VALUE];
int Nw = 0;
Nw = ds.a_size > ds.b_size ? ds.a_size : ds.b_size;
fxp_t yaux[ds.a_size];
fxp_t xaux[ds.b_size];
fxp_t waux[Nw];
double yfaux[ds.a_size];
double xfaux[ds.b_size];
double wfaux[Nw];
int i;
for (i = 0; i < ds.a_size; ++i) {
yaux[i] = 0;
yfaux[i] = 0;
}
for (i = 0; i < ds.b_size; ++i) {
xaux[i] = 0;
xfaux[i] = 0;
}
for (i = 0; i < Nw; ++i) {
waux[i] = 0;
wfaux[i] = 0;
}
for (i = 0; i < X_SIZE_VALUE; ++i) {
y[i] = 0;
x[i] = nondet_int();
__DSVERIFIER_assume(x[i] >= min_fxp && x[i] <= max_fxp);
yf[i] = 0.0f;
xf[i] = fxp_to_double(x[i]);
}
for (i = 0; i < X_SIZE_VALUE; ++i) {
shiftL(x[i], xaux, ds.b_size);
y[i] = fxp_direct_form_1(yaux, xaux, a_fxp, b_fxp, ds.a_size, ds.b_size);
shiftL(y[i], yaux, ds.a_size);
shiftLDouble(xf[i], xfaux, ds.b_size);
yf[i] = double_direct_form_1(yfaux, xfaux, ds.a, ds.b, ds.a_size, ds.b_size);
shiftLDouble(yf[i], yfaux, ds.a_size);
# 169 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error.h"
double absolute_error = yf[i] - fxp_to_double(y[i]);
__DSVERIFIER_assert(absolute_error < (impl.max_error) && absolute_error > (-impl.max_error));
}
return 0;
}
# 35 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_zero_input_limit_cycle.h" 1
# 13 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_zero_input_limit_cycle.h"
extern digital_system ds;
extern implementation impl;
int verify_zero_input_limit_cycle(void){
overflow_mode = 3;
int i,j;
int Set_xsize_at_least_two_times_Na = 2 * ds.a_size;
printf("X_SIZE must be at least 2 * ds.a_size");
# 23 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_zero_input_limit_cycle.h" 3 4
((void) sizeof ((
# 23 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_zero_input_limit_cycle.h"
X_SIZE_VALUE >= Set_xsize_at_least_two_times_Na
# 23 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_zero_input_limit_cycle.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 23 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_zero_input_limit_cycle.h"
X_SIZE_VALUE >= Set_xsize_at_least_two_times_Na
# 23 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_zero_input_limit_cycle.h" 3 4
) ; else __assert_fail (
# 23 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_zero_input_limit_cycle.h"
"X_SIZE_VALUE >= Set_xsize_at_least_two_times_Na"
# 23 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_zero_input_limit_cycle.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_zero_input_limit_cycle.h", 23, __extension__ __PRETTY_FUNCTION__); }))
# 23 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_zero_input_limit_cycle.h"
;
fxp_t a_fxp[ds.a_size];
fxp_t b_fxp[ds.b_size];
fxp_double_to_fxp_array(ds.a, a_fxp, ds.a_size);
fxp_double_to_fxp_array(ds.b, b_fxp, ds.b_size);
# 71 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_zero_input_limit_cycle.h"
fxp_t min_fxp = fxp_double_to_fxp(impl.min);
fxp_t max_fxp = fxp_double_to_fxp(impl.max);
fxp_t y[X_SIZE_VALUE];
fxp_t x[X_SIZE_VALUE];
for (i = 0; i < X_SIZE_VALUE; ++i) {
y[i] = 0;
x[i] = 0;
}
int Nw = 0;
Nw = ds.a_size > ds.b_size ? ds.a_size : ds.b_size;
fxp_t yaux[ds.a_size];
fxp_t xaux[ds.b_size];
fxp_t waux[Nw];
fxp_t y0[ds.a_size];
fxp_t w0[Nw];
for (i = 0; i < ds.a_size; ++i) {
yaux[i] = nondet_int();
__DSVERIFIER_assume(yaux[i] >= min_fxp && yaux[i] <= max_fxp);
y0[i] = yaux[i];
}
# 111 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_zero_input_limit_cycle.h"
for (i = 0; i < ds.b_size; ++i) {
xaux[i] = 0;
}
fxp_t xk, temp;
fxp_t *aptr, *bptr, *xptr, *yptr, *wptr;
for(i=0; i<X_SIZE_VALUE; ++i){
shiftL(x[i], xaux, ds.b_size);
y[i] = fxp_direct_form_1(yaux, xaux, a_fxp, b_fxp, ds.a_size, ds.b_size);
shiftL(y[i], yaux, ds.a_size);
# 188 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_zero_input_limit_cycle.h"
}
fxp_check_persistent_limit_cycle(y, X_SIZE_VALUE);
return 0;
}
# 36 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_generic_timing.h" 1
# 16 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_generic_timing.h"
int nondet_int();
float nondet_float();
extern digital_system ds;
extern implementation impl;
extern hardware hw;
int generic_timer = 0;
int verify_generic_timing(void) {
double y[X_SIZE_VALUE];
double x[X_SIZE_VALUE];
int i;
for (i = 0; i < X_SIZE_VALUE; ++i) {
y[i] = 0;
x[i] = nondet_float();
__DSVERIFIER_assume(x[i] >= impl.min && x[i] <= impl.max);
}
int Nw = 0;
Nw = ds.a_size > ds.b_size ? ds.a_size : ds.b_size;
double yaux[ds.a_size];
double xaux[ds.b_size];
double waux[Nw];
for (i = 0; i < ds.a_size; ++i) {
yaux[i] = 0;
}
for (i = 0; i < ds.b_size; ++i) {
xaux[i] = 0;
}
for (i = 0; i < Nw; ++i) {
waux[i] = 0;
}
double xk, temp;
double *aptr, *bptr, *xptr, *yptr, *wptr;
int j;
generic_timer += ((2 * hw.assembly.std) + (1 * hw.assembly.rjmp));
double initial_timer = generic_timer;
for (i = 0; i < X_SIZE_VALUE; ++i) {
generic_timer += ((2 * hw.assembly.ldd) + (1 * hw.assembly.adiw) + (2 * hw.assembly.std));
generic_timer += ((2 * hw.assembly.ldd) + (1 * hw.assembly.cpi) + (1 * hw.assembly.cpc) + (1 * hw.assembly.brlt));
generic_timing_shift_l_double(x[i], xaux, ds.b_size);
y[i] = generic_timing_double_direct_form_1(yaux, xaux, ds.a, ds.b, ds.a_size, ds.b_size);
generic_timing_shift_l_double(y[i], yaux, ds.a_size);
# 88 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_generic_timing.h"
double spent_time = (((double) generic_timer) * hw.cycle);
# 89 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_generic_timing.h" 3 4
((void) sizeof ((
# 89 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_generic_timing.h"
spent_time <= ds.sample_time
# 89 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_generic_timing.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 89 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_generic_timing.h"
spent_time <= ds.sample_time
# 89 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_generic_timing.h" 3 4
) ; else __assert_fail (
# 89 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_generic_timing.h"
"spent_time <= ds.sample_time"
# 89 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_generic_timing.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_generic_timing.h", 89, __extension__ __PRETTY_FUNCTION__); }))
# 89 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_generic_timing.h"
;
generic_timer = initial_timer;
}
return 0;
}
# 37 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_timing_msp430.h" 1
# 16 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_timing_msp430.h"
int nondet_int();
float nondet_float();
extern digital_system ds;
extern implementation impl;
int verify_timing_msp_430(void) {
double y[X_SIZE_VALUE];
double x[X_SIZE_VALUE];
int i;
for (i = 0; i < X_SIZE_VALUE; ++i) {
y[i] = 0;
x[i] = nondet_float();
__DSVERIFIER_assume(x[i] >= impl.min && x[i] <= impl.max);
}
int Nw = 0;
Nw = ds.a_size > ds.b_size ? ds.a_size : ds.b_size;
double yaux[ds.a_size];
double xaux[ds.b_size];
double waux[Nw];
for (i = 0; i < ds.a_size; ++i) {
yaux[i] = 0;
}
for (i = 0; i < ds.b_size; ++i) {
xaux[i] = 0;
}
for (i = 0; i < Nw; ++i) {
waux[i] = 0;
}
double xk, temp;
double *aptr, *bptr, *xptr, *yptr, *wptr;
int j;
for (i = 0; i < X_SIZE_VALUE; ++i) {
shiftL(x[i], xaux, ds.b_size);
y[i] = double_direct_form_1_MSP430(yaux, xaux, ds.a, ds.b, ds.a_size, ds.b_size);
shiftL(y[i], yaux, ds.a_size);
# 121 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_timing_msp430.h"
}
return 0;
}
# 38 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_stability.h" 1
# 21 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_stability.h"
extern digital_system ds;
extern implementation impl;
int verify_stability(void){
overflow_mode = 0;
fxp_t a_fxp[ds.a_size];
fxp_double_to_fxp_array(ds.a, a_fxp, ds.a_size);
double _a[ds.a_size];
fxp_to_double_array(_a, a_fxp, ds.a_size);
# 37 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_stability.h" 3 4
((void) sizeof ((
# 37 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_stability.h"
check_stability(_a, ds.a_size)
# 37 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_stability.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 37 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_stability.h"
check_stability(_a, ds.a_size)
# 37 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_stability.h" 3 4
) ; else __assert_fail (
# 37 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_stability.h"
"check_stability(_a, ds.a_size)"
# 37 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_stability.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_stability.h", 37, __extension__ __PRETTY_FUNCTION__); }))
# 37 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_stability.h"
;
# 83 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_stability.h"
return 0;
}
# 39 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_minimum_phase.h" 1
# 21 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_minimum_phase.h"
extern digital_system ds;
extern implementation impl;
int verify_minimum_phase(void){
overflow_mode = 0;
fxp_t b_fxp[ds.b_size];
fxp_double_to_fxp_array(ds.b, b_fxp, ds.b_size);
double _b[ds.b_size];
fxp_to_double_array(_b, b_fxp, ds.b_size);
__DSVERIFIER_assert(check_stability(_b, ds.b_size));
# 85 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_minimum_phase.h"
return 0;
}
# 40 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_stability_closedloop.h" 1
# 17 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_stability_closedloop.h"
extern digital_system plant;
extern digital_system plant_cbmc;
extern digital_system controller;
int verify_stability_closedloop_using_dslib(void){
double * c_num = controller.b;
int c_num_size = controller.b_size;
double * c_den = controller.a;
int c_den_size = controller.a_size;
fxp_t c_num_fxp[controller.b_size];
fxp_double_to_fxp_array(c_num, c_num_fxp, controller.b_size);
fxp_t c_den_fxp[controller.a_size];
fxp_double_to_fxp_array(c_den, c_den_fxp, controller.a_size);
double c_num_qtz[controller.b_size];
fxp_to_double_array(c_num_qtz, c_num_fxp, controller.b_size);
double c_den_qtz[controller.a_size];
fxp_to_double_array(c_den_qtz, c_den_fxp, controller.a_size);
double * p_num = plant.b;
int p_num_size = plant.b_size;
double * p_den = plant.a;
int p_den_size = plant.a_size;
double ans_num[100];
int ans_num_size = controller.b_size + plant.b_size - 1;
double ans_den[100];
int ans_den_size = controller.a_size + plant.a_size - 1;
# 68 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_stability_closedloop.h"
printf("Verifying stability for closedloop function\n");
__DSVERIFIER_assert(check_stability_closedloop(ans_den, ans_den_size, p_num, p_num_size, p_den, p_den_size));
return 0;
}
# 41 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle_closedloop.h" 1
# 23 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle_closedloop.h"
extern digital_system plant;
extern digital_system plant_cbmc;
extern digital_system controller;
double nondet_double();
int verify_limit_cycle_closed_loop(void){
overflow_mode = 3;
double * c_num = controller.b;
int c_num_size = controller.b_size;
double * c_den = controller.a;
int c_den_size = controller.a_size;
fxp_t c_num_fxp[controller.b_size];
fxp_double_to_fxp_array(c_num, c_num_fxp, controller.b_size);
fxp_t c_den_fxp[controller.a_size];
fxp_double_to_fxp_array(c_den, c_den_fxp, controller.a_size);
double c_num_qtz[controller.b_size];
fxp_to_double_array(c_num_qtz, c_num_fxp, controller.b_size);
double c_den_qtz[controller.a_size];
fxp_to_double_array(c_den_qtz, c_den_fxp, controller.a_size);
double * p_num = plant.b;
int p_num_size = plant.b_size;
double * p_den = plant.a;
int p_den_size = plant.a_size;
double ans_num[100];
int ans_num_size = controller.b_size + plant.b_size - 1;
double ans_den[100];
int ans_den_size = controller.a_size + plant.a_size - 1;
int i;
double y[X_SIZE_VALUE];
double x[X_SIZE_VALUE];
double xaux[ans_num_size];
double nondet_constant_input = nondet_double();
__DSVERIFIER_assume(nondet_constant_input >= impl.min && nondet_constant_input <= impl.max);
for (i = 0; i < X_SIZE_VALUE; ++i) {
x[i] = nondet_constant_input;
y[i] = 0;
}
for (i = 0; i < ans_num_size; ++i) {
xaux[i] = nondet_constant_input;
}
double yaux[ans_den_size];
double y0[ans_den_size];
int Nw = ans_den_size > ans_num_size ? ans_den_size : ans_num_size;
double waux[Nw];
double w0[Nw];
for (i = 0; i < ans_den_size; ++i) {
yaux[i] = nondet_int();
__DSVERIFIER_assume(yaux[i] >= impl.min && yaux[i] <= impl.max);
y0[i] = yaux[i];
}
# 112 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle_closedloop.h"
double xk, temp;
double *aptr, *bptr, *xptr, *yptr, *wptr;
int j;
for(i=0; i<X_SIZE_VALUE; ++i){
shiftLDouble(x[i], xaux, ans_num_size);
y[i] = double_direct_form_1(yaux, xaux, ans_den, ans_num, ans_den_size, ans_num_size);
shiftLDouble(y[i], yaux, ans_den_size);
# 137 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_limit_cycle_closedloop.h"
}
double_check_persistent_limit_cycle(y, X_SIZE_VALUE);
return 0;
}
# 42 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_closedloop.h" 1
# 23 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_closedloop.h"
extern digital_system plant;
extern digital_system plant_cbmc;
extern digital_system controller;
int verify_error_closedloop(void){
overflow_mode = 3;
double * c_num = controller.b;
int c_num_size = controller.b_size;
double * c_den = controller.a;
int c_den_size = controller.a_size;
fxp_t c_num_fxp[controller.b_size];
fxp_double_to_fxp_array(c_num, c_num_fxp, controller.b_size);
fxp_t c_den_fxp[controller.a_size];
fxp_double_to_fxp_array(c_den, c_den_fxp, controller.a_size);
double c_num_qtz[controller.b_size];
fxp_to_double_array(c_num_qtz, c_num_fxp, controller.b_size);
double c_den_qtz[controller.a_size];
fxp_to_double_array(c_den_qtz, c_den_fxp, controller.a_size);
double * p_num = plant.b;
int p_num_size = plant.b_size;
double * p_den = plant.a;
int p_den_size = plant.a_size;
double ans_num_double[100];
double ans_num_qtz[100];
int ans_num_size = controller.b_size + plant.b_size - 1;
double ans_den_qtz[100];
double ans_den_double[100];
int ans_den_size = controller.a_size + plant.a_size - 1;
# 77 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_closedloop.h"
int i;
double y_qtz[X_SIZE_VALUE];
double y_double[X_SIZE_VALUE];
double x_qtz[X_SIZE_VALUE];
double x_double[X_SIZE_VALUE];
double xaux_qtz[ans_num_size];
double xaux_double[ans_num_size];
double xaux[ans_num_size];
double nondet_constant_input = nondet_double();
__DSVERIFIER_assume(nondet_constant_input >= impl.min && nondet_constant_input <= impl.max);
for (i = 0; i < X_SIZE_VALUE; ++i) {
x_qtz[i] = nondet_constant_input;
x_double[i] = nondet_constant_input;
y_qtz[i] = 0;
y_double[i] = 0;
}
for (i = 0; i < ans_num_size; ++i) {
xaux_qtz[i] = nondet_constant_input;
xaux_double[i] = nondet_constant_input;
}
double yaux_qtz[ans_den_size];
double yaux_double[ans_den_size];
double y0_qtz[ans_den_size];
double y0_double[ans_den_size];
int Nw = ans_den_size > ans_num_size ? ans_den_size : ans_num_size;
double waux_qtz[Nw];
double waux_double[Nw];
double w0_qtz[Nw];
double w0_double[Nw];
for (i = 0; i < ans_den_size; ++i) {
yaux_qtz[i] = 0;
yaux_double[i] = 0;
}
for(i=0; i<X_SIZE_VALUE; ++i){
shiftLDouble(x_qtz[i], xaux_qtz, ans_num_size);
y_qtz[i] = double_direct_form_1(yaux_qtz, xaux_qtz, ans_den_qtz, ans_num_qtz, ans_den_size, ans_num_size);
shiftLDouble(y_qtz[i], yaux_qtz, ans_den_size);
shiftLDouble(x_double[i], xaux_double, ans_num_size);
y_double[i] = double_direct_form_1(yaux_double, xaux_double, ans_den_double, ans_num_double, ans_den_size, ans_num_size);
shiftLDouble(y_double[i], yaux_double, ans_den_size);
# 156 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_closedloop.h"
double absolute_error = y_double[i] - fxp_to_double(y_qtz[i]);
__DSVERIFIER_assert(absolute_error < (impl.max_error) && absolute_error > (-impl.max_error));
}
return 0;
}
# 43 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h" 1
# 20 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h"
extern digital_system_state_space _controller;
extern double error_limit;
extern int closed_loop;
double new_state[4][4];
double new_stateFWL[4][4];
digital_system_state_space _controller_fxp;
digital_system_state_space _controller_double;
double ss_system_quantization_error(fxp_t inputs){
digital_system_state_space __backupController;
int i;
int j;
_controller.inputs[0][0] = inputs;
for(i=0; i<nStates;i++){
for(j=0; j<nStates;j++){
__backupController.A[i][j]= (_controller.A[i][j]);
}
}
for(i=0; i<nStates;i++){
for(j=0; j<nInputs;j++){
__backupController.B[i][j]= (_controller.B[i][j]);
}
}
for(i=0; i<nOutputs;i++){
for(j=0; j<nStates;j++){
__backupController.C[i][j]= (_controller.C[i][j]);
}
}
for(i=0; i<nOutputs;i++){
for(j=0; j<nInputs;j++){
__backupController.D[i][j]= (_controller.D[i][j]);
}
}
for(i=0; i<nStates;i++){
for(j=0; j<1;j++){
__backupController.states[i][j]= (_controller.states[i][j]);
}
}
for(i=0; i<nInputs;i++){
for(j=0; j<1;j++){
__backupController.inputs[i][j]= (_controller.inputs[i][j]);
}
}
for(i=0; i<nOutputs;i++){
for(j=0; j<1;j++){
__backupController.outputs[i][j]= (_controller.outputs[i][j]);
}
}
double __quant_error = 0.0;
for(i=0; i<nStates;i++){
for(j=0; j<1;j++){
_controller.states[i][j]= (new_state[i][j]);
}
}
double output_double = double_state_space_representation();
for(i=0; i<nStates;i++){
for(j=0; j<1;j++){
new_state[i][j]= (_controller.states[i][j]);
}
}
__backupController.inputs[0][0] = inputs;
for(i=0; i<nStates;i++){
for(j=0; j<nStates;j++){
_controller.A[i][j] = __backupController.A[i][j];
}
}
for(i=0; i<nStates;i++){
for(j=0; j<nInputs;j++){
_controller.B[i][j] = __backupController.B[i][j];
}
}
for(i=0; i<nOutputs;i++){
for(j=0; j<nStates;j++){
_controller.C[i][j] = __backupController.C[i][j];
}
}
for(i=0; i<nOutputs;i++){
for(j=0; j<nInputs;j++){
_controller.D[i][j] = __backupController.D[i][j];
}
}
for(i=0; i<nStates;i++){
for(j=0; j<1;j++){
_controller.states[i][j] = __backupController.states[i][j];
}
}
for(i=0; i<nInputs;i++){
for(j=0; j<1;j++){
_controller.inputs[i][j] = __backupController.inputs[i][j];
}
}
for(i=0; i<nOutputs;i++){
for(j=0; j<1;j++){
_controller.outputs[i][j] = __backupController.outputs[i][j];
}
}
for(i=0; i<nStates;i++){
for(j=0; j<1;j++){
_controller.states[i][j]= (new_stateFWL[i][j]);
}
}
double output_fxp = fxp_state_space_representation();
for(i=0; i<nStates;i++){
for(j=0; j<1;j++){
new_stateFWL[i][j]= (_controller.states[i][j]);
}
}
__quant_error = output_double - output_fxp;
return __quant_error;
}
double fxp_ss_closed_loop_quantization_error(double reference){
double reference_aux[4][4];
double result1[4][4];
double temp_result1[4][4];
double result2[4][4];
double temp_states[4][4];
fxp_t K_fxp[4][4];
fxp_t states_fxp[4][4];
fxp_t result_fxp[4][4];
unsigned int i;
unsigned int j;
unsigned int k;
short unsigned int flag = 0;
for(i=0; i<nOutputs;i++){
for(j=0; j<nInputs;j++){
if(_controller_fxp.D[i][j] != 0){
flag = 1;
}
}
}
for(i=0; i<4;i++){
for(j=0; j<4;j++){
reference_aux[i][j]=0;
K_fxp[i][j] = 0;
}
}
for(i=0; i<nInputs;i++){
reference_aux[i][0]= reference;
}
for(i=0; i<4;i++){
states_fxp[i][0]=0;
}
for(i=0; i<nStates;i++){
K_fxp[0][i]= fxp_double_to_fxp(_controller_fxp.K[0][i]);
}
for(i=0; i<4;i++){
for(j=0; j<4;j++){
result1[i][j]=0;
result2[i][j]=0;
}
}
for(k=0; k<nStates;k++)
{
states_fxp[k][0]= fxp_double_to_fxp(_controller_fxp.states[k][0]);
}
fxp_matrix_multiplication(nOutputs,nStates,nStates,1,K_fxp,states_fxp,result_fxp);
fxp_t reference_fxp[4][4];
fxp_t result_fxp2[4][4];
for(k=0;k<nInputs;k++)
{
reference_fxp[k][0] =fxp_double_to_fxp(fxp_quantize(reference_aux[k][0]));
}
fxp_sub_matrix(nInputs,1, reference_fxp, result_fxp, result_fxp2);
for(k=0; k<nInputs;k++)
{
_controller_fxp.inputs[k][0] = fxp_to_double(fxp_quantize(result_fxp2[k][0]));
}
double_matrix_multiplication(nOutputs,nStates,nStates,1,_controller_fxp.C,_controller_fxp.states,result1);
if(flag == 1)
{
double_matrix_multiplication(nOutputs,nInputs,nInputs,1,_controller_fxp.D,_controller_fxp.inputs,result2);
}
double_add_matrix(nOutputs,1,result1,result2,_controller_fxp.outputs);
double_matrix_multiplication(nStates,nStates,nStates,1,_controller_fxp.A,_controller_fxp.states,result1);
double_matrix_multiplication(nStates,nInputs,nInputs,1,_controller_fxp.B,_controller_fxp.inputs,result2);
double_add_matrix(nStates,1,result1,result2,_controller_fxp.states);
return _controller_fxp.outputs[0][0];
}
double ss_closed_loop_quantization_error(double reference){
double reference_aux[4][4];
double result1[4][4];
double result2[4][4];
unsigned int i;
unsigned int j;
short unsigned int flag = 0;
for(i=0; i<nOutputs;i++){
for(j=0; j<nInputs;j++){
if(_controller_double.D[i][j] != 0){
flag = 1;
}
}
}
for(i=0; i<nInputs;i++){
for(j=0; j<1;j++){
reference_aux[i][j]= reference;
}
}
for(i=0; i<4;i++){
for(j=0; j<4;j++){
result1[i][j]=0;
result2[i][j]=0;
}
}
double_matrix_multiplication(nOutputs,nStates,nStates,1,_controller_double.K,_controller_double.states,result1);
double_sub_matrix(nInputs,1,reference_aux,result1, _controller_double.inputs);
double_matrix_multiplication(nOutputs,nStates,nStates,1,_controller_double.C,_controller_double.states,result1);
if(flag == 1)
double_matrix_multiplication(nOutputs,nInputs,nInputs,1,_controller_double.D,_controller_double.inputs,result2);
double_add_matrix(nOutputs,1,result1,result2,_controller_double.outputs);
double_matrix_multiplication(nStates,nStates,nStates,1,_controller_double.A,_controller_double.states,result1);
double_matrix_multiplication(nStates,nInputs,nInputs,1,_controller_double.B,_controller_double.inputs,result2);
double_add_matrix(nStates,1,result1,result2,_controller_double.states);
return _controller_double.outputs[0][0];
}
int verify_error_state_space(void){
int i,j;
for(i=0; i<nStates;i++){
for(j=0; j<1;j++){
new_state[i][j]= (_controller.states[i][j]);
}
}
for(i=0; i<nStates;i++){
for(j=0; j<1;j++){
new_stateFWL[i][j]= (_controller.states[i][j]);
}
}
_controller_fxp = _controller;
_controller_double = _controller;
overflow_mode = 0;
fxp_t x[0];
fxp_t min_fxp = fxp_double_to_fxp(impl.min);
fxp_t max_fxp = fxp_double_to_fxp(impl.max);
double nondet_constant_input = nondet_double();
__DSVERIFIER_assume(nondet_constant_input >= min_fxp && nondet_constant_input <= max_fxp);
for (i = 0; i < 0; ++i) {
x[i] = nondet_constant_input;
}
double __quant_error;
if(closed_loop){
for (i = 0; i < 0; ++i) {
__quant_error = ss_closed_loop_quantization_error(x[i]) - fxp_ss_closed_loop_quantization_error(x[i]);
# 354 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h" 3 4
((void) sizeof ((
# 354 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h"
__quant_error < error_limit && __quant_error > ((-1)*error_limit)
# 354 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 354 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h"
__quant_error < error_limit && __quant_error > ((-1)*error_limit)
# 354 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h" 3 4
) ; else __assert_fail (
# 354 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h"
"__quant_error < error_limit && __quant_error > ((-1)*error_limit)"
# 354 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h", 354, __extension__ __PRETTY_FUNCTION__); }))
# 354 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h"
;
}
}
else {
for (i=0; i < 0; i++)
{
__quant_error = ss_system_quantization_error(x[i]);
# 361 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h" 3 4
((void) sizeof ((
# 361 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h"
__quant_error < error_limit && __quant_error > ((-1)*error_limit)
# 361 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 361 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h"
__quant_error < error_limit && __quant_error > ((-1)*error_limit)
# 361 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h" 3 4
) ; else __assert_fail (
# 361 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h"
"__quant_error < error_limit && __quant_error > ((-1)*error_limit)"
# 361 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h", 361, __extension__ __PRETTY_FUNCTION__); }))
# 361 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_error_state_space.h"
;
}
}
return 0;
}
# 44 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_safety_state_space.h" 1
# 17 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_safety_state_space.h"
extern digital_system_state_space _controller;
extern double error_limit;
extern int closed_loop;
double fxp_ss_closed_loop_safety(){
double reference[4][4];
double result1[4][4];
double result2[4][4];
fxp_t K_fpx[4][4];
fxp_t outputs_fpx[4][4];
fxp_t result_fxp[4][4];
unsigned int i;
unsigned int j;
unsigned int k;
short unsigned int flag = 0;
for(i=0; i<nOutputs;i++){
for(j=0; j<nInputs;j++){
if(_controller.D[i][j] != 0){
flag = 1;
}
}
}
for(i=0; i<nInputs;i++){
for(j=0; j<1;j++){
reference[i][j]= (_controller.inputs[i][j]);
}
}
for(i=0; i<nInputs;i++){
for(j=0; j<nOutputs;j++){
K_fpx[i][j]=0;
}
}
for(i=0; i<nOutputs;i++){
for(j=0; j<1;j++){
outputs_fpx[i][j]=0;
}
}
for(i=0; i<4;i++){
for(j=0; j<4;j++){
result_fxp[i][j]=0;
}
}
for(i=0; i<nInputs;i++){
for(j=0; j<nOutputs;j++){
K_fpx[i][j]= fxp_double_to_fxp(_controller.K[i][j]);
}
}
for(i=0; i<4;i++){
for(j=0; j<4;j++){
result1[i][j]=0;
result2[i][j]=0;
}
}
for (i = 1; i < 0; i++) {
double_matrix_multiplication(nOutputs,nStates,nStates,1,_controller.C,_controller.states,result1);
if(flag == 1){
double_matrix_multiplication(nOutputs,nInputs,nInputs,1,_controller.D,_controller.inputs,result2);
}
double_add_matrix(nOutputs,
1,
result1,
result2,
_controller.outputs);
for(k=0; k<nOutputs;k++){
for(j=0; j<1;j++){
outputs_fpx[k][j]= fxp_double_to_fxp(_controller.outputs[k][j]);
}
}
fxp_matrix_multiplication(nInputs,nOutputs,nOutputs,1,K_fpx,outputs_fpx,result_fxp);
for(k=0; k<nInputs;k++){
for(j=0; j<1;j++){
result1[k][j]= fxp_to_double(result_fxp[k][j]);
}
}
printf("### fxp: U (before) = %.9f", _controller.inputs[0][0]);
printf("### fxp: reference = %.9f", reference[0][0]);
printf("### fxp: result1 = %.9f", result1[0][0]);
printf("### fxp: reference - result1 = %.9f", (reference[0][0] - result1[0][0]));
double_sub_matrix(nInputs,
1,
reference,
result1,
_controller.inputs);
printf("### fxp: Y = %.9f", _controller.outputs[0][0]);
printf("### fxp: U (after) = %.9f \n### \n### ", _controller.inputs[0][0]);
double_matrix_multiplication(nStates,nStates,nStates,1,_controller.A,_controller.states,result1);
double_matrix_multiplication(nStates,nInputs,nInputs,1,_controller.B,_controller.inputs,result2);
double_add_matrix(nStates,
1,
result1,
result2,
_controller.states);
}
return _controller.outputs[0][0];
}
int verify_safety_state_space(void){
fxp_t output_fxp = fxp_ss_closed_loop_safety();
double output_double = fxp_to_double(output_fxp);
# 140 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_safety_state_space.h" 3 4
((void) sizeof ((
# 140 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_safety_state_space.h"
output_double <= error_limit
# 140 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_safety_state_space.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 140 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_safety_state_space.h"
output_double <= error_limit
# 140 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_safety_state_space.h" 3 4
) ; else __assert_fail (
# 140 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_safety_state_space.h"
"output_double <= error_limit"
# 140 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_safety_state_space.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_safety_state_space.h", 140, __extension__ __PRETTY_FUNCTION__); }))
# 140 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_safety_state_space.h"
;
return 0;
}
# 45 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h" 1
# 14 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h"
extern digital_system_state_space _controller;
int verify_controllability(void){
int i;
int j;
fxp_t A_fpx[4][4];
fxp_t B_fpx[4][4];
fxp_t controllabilityMatrix[4][4];
fxp_t backup[4][4];
fxp_t backupSecond[4][4];
double controllabilityMatrix_double[4][4];
for(i=0; i<nStates;i++){
for(j=0; j<(nStates*nInputs);j++){
A_fpx[i][j] = 0.0;
B_fpx[i][j] = 0.0;
controllabilityMatrix[i][j] = 0.0;
backup[i][j] = 0.0;
backupSecond[i][j] = 0.0;
controllabilityMatrix_double[i][j] = 0.0;
}
}
for(i=0; i<nStates;i++){
for(j=0; j<nStates;j++){
A_fpx[i][j]= fxp_double_to_fxp(_controller.A[i][j]);
}
}
for(i=0; i<nStates;i++){
for(j=0; j<nInputs;j++){
B_fpx[i][j]= fxp_double_to_fxp(_controller.B[i][j]);
}
}
if(nInputs > 1){
int l = 0;
for(j=0; j<(nStates*nInputs);){
fxp_exp_matrix(nStates,nStates,A_fpx,l,backup);
l++;
fxp_matrix_multiplication(nStates,nStates,nStates,nInputs,backup,B_fpx,backupSecond);
for(int k = 0; k < nInputs; k++){
for(i = 0; i<nStates;i++){
controllabilityMatrix[i][j]= backupSecond[i][k];
}
j++;
}
}
for(i=0; i<nStates;i++){
for(j=0; j<(nStates*nInputs);j++){
backup[i][j]= 0.0;
}
}
fxp_transpose(controllabilityMatrix,backup,nStates,(nStates*nInputs));
fxp_t mimo_controllabilityMatrix_fxp[4][4];
fxp_matrix_multiplication(nStates,(nStates*nInputs),(nStates*nInputs),nStates,controllabilityMatrix,backup,mimo_controllabilityMatrix_fxp);
for(i=0; i<nStates;i++){
for(j=0; j<nStates;j++){
controllabilityMatrix_double[i][j]= fxp_to_double(mimo_controllabilityMatrix_fxp[i][j]);
}
}
# 91 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h" 3 4
((void) sizeof ((
# 91 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h"
determinant(controllabilityMatrix_double,nStates) != 0
# 91 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 91 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h"
determinant(controllabilityMatrix_double,nStates) != 0
# 91 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h" 3 4
) ; else __assert_fail (
# 91 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h"
"determinant(controllabilityMatrix_double,nStates) != 0"
# 91 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h", 91, __extension__ __PRETTY_FUNCTION__); }))
# 91 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h"
;
} else {
for(j=0; j<nStates;j++){
fxp_exp_matrix(nStates,nStates,A_fpx,j,backup);
fxp_matrix_multiplication(nStates,nStates,nStates,nInputs,backup,B_fpx,backupSecond);
for(i = 0; i<nStates;i++){
controllabilityMatrix[i][j]= backupSecond[i][0];
}
}
for(i=0; i<nStates;i++){
for(j=0; j<nStates;j++){
controllabilityMatrix_double[i][j]= fxp_to_double(controllabilityMatrix[i][j]);
}
}
# 113 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h" 3 4
((void) sizeof ((
# 113 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h"
determinant(controllabilityMatrix_double,nStates) != 0
# 113 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 113 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h"
determinant(controllabilityMatrix_double,nStates) != 0
# 113 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h" 3 4
) ; else __assert_fail (
# 113 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h"
"determinant(controllabilityMatrix_double,nStates) != 0"
# 113 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h", 113, __extension__ __PRETTY_FUNCTION__); }))
# 113 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h"
;
}
return 0;
}
int verify_controllability_double(void){
int i;
int j;
double controllabilityMatrix[4][4];
double backup[4][4];
double backupSecond[4][4];
double controllabilityMatrix_double[4][4];
if(nInputs > 1){
int l = 0;
for(j=0; j<(nStates*nInputs);){
double_exp_matrix(nStates,nStates,_controller.A,l,backup);
l++;
double_matrix_multiplication(nStates,nStates,nStates,nInputs,backup,_controller.B,backupSecond);
for(int k = 0; k < nInputs; k++){
for(i = 0; i<nStates;i++){
controllabilityMatrix[i][j]= backupSecond[i][k];
}
j++;
}
}
for(i=0; i<nStates;i++){
for(j=0; j<(nStates*nInputs);j++){
backup[i][j]= 0.0;
}
}
transpose(controllabilityMatrix,backup,nStates,(nStates*nInputs));
double mimo_controllabilityMatrix_double[4][4];
double_matrix_multiplication(nStates,(nStates*nInputs),(nStates*nInputs),nStates,controllabilityMatrix,backup,mimo_controllabilityMatrix_double);
# 154 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h" 3 4
((void) sizeof ((
# 154 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h"
determinant(mimo_controllabilityMatrix_double,nStates) != 0
# 154 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 154 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h"
determinant(mimo_controllabilityMatrix_double,nStates) != 0
# 154 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h" 3 4
) ; else __assert_fail (
# 154 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h"
"determinant(mimo_controllabilityMatrix_double,nStates) != 0"
# 154 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h", 154, __extension__ __PRETTY_FUNCTION__); }))
# 154 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h"
;
} else {
for(j=0; j<nStates;j++){
double_exp_matrix(nStates,nStates,_controller.A,j,backup);
double_matrix_multiplication(nStates,nStates,nStates,nInputs,backup,_controller.B,backupSecond);
for(i = 0; i<nStates;i++){
controllabilityMatrix[i][j]= backupSecond[i][0];
}
}
# 163 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h" 3 4
((void) sizeof ((
# 163 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h"
determinant(controllabilityMatrix,nStates) != 0
# 163 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 163 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h"
determinant(controllabilityMatrix,nStates) != 0
# 163 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h" 3 4
) ; else __assert_fail (
# 163 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h"
"determinant(controllabilityMatrix,nStates) != 0"
# 163 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h", 163, __extension__ __PRETTY_FUNCTION__); }))
# 163 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_controllability.h"
;
}
return 0;
}
# 46 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h" 1
# 17 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h"
extern digital_system_state_space _controller;
int verify_observability(void){
int i;
int j;
fxp_t A_fpx[4][4];
fxp_t C_fpx[4][4];
fxp_t observabilityMatrix[4][4];
fxp_t backup[4][4];
fxp_t backupSecond[4][4];
double observabilityMatrix_double[4][4];
for(i=0; i<nStates;i++){
for(j=0; j<nStates;j++){
observabilityMatrix[i][j]= 0;
A_fpx[i][j]=0;
C_fpx[i][j]= 0;
backup[i][j]= 0;
backupSecond[i][j]= 0;
}
}
for(i=0; i<nStates;i++){
for(j=0; j<nStates;j++){
A_fpx[i][j]= fxp_double_to_fxp(_controller.A[i][j]);
}
}
for(i=0; i<nOutputs;i++){
for(j=0; j<nStates;j++){
C_fpx[i][j]= fxp_double_to_fxp(_controller.C[i][j]);
}
}
if(nOutputs > 1){
int l;
j = 0;
for(l=0; l<nStates;){
fxp_exp_matrix(nStates,nStates,A_fpx,l,backup);
l++;
fxp_matrix_multiplication(nOutputs,nStates,nStates,nStates,C_fpx,backup,backupSecond);
for(int k = 0; k < nOutputs; k++){
for(i = 0; i<nStates;i++){
observabilityMatrix[j][i]= backupSecond[k][i];
}
j++;
}
}
# 80 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h"
for(i=0; i<nStates;i++){
for(j=0; j<(nStates*nOutputs);j++){
backup[i][j]= 0.0;
}
}
fxp_transpose(observabilityMatrix,backup,(nStates*nOutputs),nStates);
# 99 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h"
fxp_t mimo_observabilityMatrix_fxp[4][4];
fxp_matrix_multiplication(nStates,(nStates*nOutputs),(nStates*nOutputs),nStates,backup,observabilityMatrix,mimo_observabilityMatrix_fxp);
# 112 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h"
for(i=0; i<nStates;i++){
for(j=0; j<nStates;j++){
observabilityMatrix_double[i][j]= fxp_to_double(mimo_observabilityMatrix_fxp[i][j]);
}
}
# 119 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h" 3 4
((void) sizeof ((
# 119 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h"
determinant(observabilityMatrix_double,nStates) != 0
# 119 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 119 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h"
determinant(observabilityMatrix_double,nStates) != 0
# 119 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h" 3 4
) ; else __assert_fail (
# 119 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h"
"determinant(observabilityMatrix_double,nStates) != 0"
# 119 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h", 119, __extension__ __PRETTY_FUNCTION__); }))
# 119 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h"
;
}else{
for(i=0; i<nStates;i++){
fxp_exp_matrix(nStates,nStates,A_fpx,i,backup);
fxp_matrix_multiplication(nOutputs,nStates,nStates,nStates,C_fpx,backup,backupSecond);
for(j = 0; j<nStates;j++){
observabilityMatrix[i][j]= backupSecond[0][j];
}
}
for(i=0; i<nStates;i++){
for(j=0; j<nStates;j++){
observabilityMatrix_double[i][j]= fxp_to_double(observabilityMatrix[i][j]);
}
}
# 134 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h" 3 4
((void) sizeof ((
# 134 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h"
determinant(observabilityMatrix_double,nStates) != 0
# 134 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h" 3 4
) ? 1 : 0), __extension__ ({ if (
# 134 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h"
determinant(observabilityMatrix_double,nStates) != 0
# 134 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h" 3 4
) ; else __assert_fail (
# 134 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h"
"determinant(observabilityMatrix_double,nStates) != 0"
# 134 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h" 3 4
, "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h", 134, __extension__ __PRETTY_FUNCTION__); }))
# 134 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_observability.h"
;
}
return 0;
}
# 47 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
# 1 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_magnitude.h" 1
# 16 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_magnitude.h"
extern filter_parameters filter;
extern implementation impl;
extern digital_system ds;
# 28 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/engine/verify_magnitude.h"
void resp_mag(double* num, int lnum, double* den, int lden, double* res, int N) {
double w;
int m, i;
double out_numRe[N + 1];
double out_numIm[N + 1];
double out_denRe[N + 1];
double out_denIm[N + 1];
double old_out_Re;
double zero_test;
for (w = 0, i = 0; w <= 3.14159265358979323846; w += 3.14159265358979323846 / N, ++i) {
out_numRe[i] = num[0];
out_numIm[i] = 0;
for (m = 1; m < lnum; ++m) {
old_out_Re = out_numRe[i];
out_numRe[i] = cosTyl(w, 6) * out_numRe[i] - sinTyl(w, 6) * out_numIm[i] + num[m];
out_numIm[i] = sinTyl(w, 6) * old_out_Re + cosTyl(w, 6) * out_numIm[i];
}
out_denRe[i] = den[0];
out_denIm[i] = 0;
for (m = 1; m < lden; ++m) {
old_out_Re = out_denRe[i];
out_denRe[i] = cosTyl(w, 6) * out_denRe[i] - sinTyl(w, 6) * out_denIm[i] + den[m];
out_denIm[i] = sinTyl(w, 6) * old_out_Re + cosTyl(w, 6) * out_denIm[i];
}
res[i] = sqrt3(out_numRe[i] * out_numRe[i] + out_numIm[i] * out_numIm[i]);
zero_test = sqrt3(out_denRe[i] * out_denRe[i] + out_denIm[i] * out_denIm[i]);
__DSVERIFIER_assume(zero_test != 0);
res[i] = res[i] / zero_test;
}
}
int verify_magnitude(void) {
int freq_response_samples = 100;
double w;
double w_incr = 1.0 / freq_response_samples;
double res[freq_response_samples+1];
int i,j;
fxp_t a_fxp[ds.a_size];
fxp_double_to_fxp_array(ds.a, a_fxp, ds.a_size);
double _a[ds.a_size];
fxp_to_double_array(_a, a_fxp, ds.a_size);
fxp_t b_fxp[ds.b_size];
fxp_double_to_fxp_array(ds.b, b_fxp, ds.b_size);
double _b[ds.b_size];
fxp_to_double_array(_b, b_fxp, ds.b_size);
resp_mag(ds.b, ds.b_size, ds.a, ds.a_size, res, freq_response_samples);
if (filter.type == 1) {
for (i = 0, w = 0; (w <= 1.0); ++i, w += w_incr) {
if (w <= filter.wp) {
__DSVERIFIER_assert_msg(res[i] >= filter.Ap, "|----------------Passband Failure-------------|");
} else if (w == filter.wc) {
__DSVERIFIER_assert_msg(res[i] <= filter.Ac, "|-------------Cutoff Frequency Failure--------|");
} else if ((w >= filter.wr) && (w <= 1)) {
__DSVERIFIER_assert_msg(res[i] <= filter.Ar, "|----------------Stopband Failure-------------|");
}
}
} else if (filter.type == 2) {
for (i = 0, w = 0; (w <= 1.0); ++i, w += w_incr) {
if (w <= filter.wr) {
__DSVERIFIER_assert_msg(res[i] <= filter.Ar, "|----------------Stopband Failure-------------|");
} else if (w == filter.wc) {
__DSVERIFIER_assert_msg(res[i] <= filter.Ac, "|-------------Cutoff Frequency Failure--------|");
} else if ((w > filter.wp) && (w <= 1)) {
__DSVERIFIER_assert_msg(res[i] >= filter.Ap, "|----------------Passband Failure-------------|");
}
}
} else {
__DSVERIFIER_assert(0);
}
return 0;
}
# 48 "/home/yashchopda/Desktop/dsverifier-v2.0.3-esbmc-v4.0-cbmc-5.6/bmc/dsverifier.h" 2
extern digital_system ds;
extern digital_system plant;
digital_system plant_cbmc;
extern digital_system controller;
extern implementation impl;
extern hardware hw;
extern digital_system_state_space _controller;
extern filter_parameters filter;
unsigned int nondet_uint();
extern void initials();
void validation();
void call_verification_task(void * verification_task);
void call_closedloop_verification_task(void * closedloop_verification_task);
float nondet_float();
double nondet_double();
int main(){
initialization();
validation();
if (1 == 0)
rounding_mode = 0;
else if (1 == 1)
rounding_mode = 1;
else if (1 == 2)
rounding_mode = 2;
if (7 == 3)
{
call_verification_task(&verify_overflow);
}
else if (7 == 2)
{
call_verification_task(&verify_limit_cycle);
}
else if (7 == 6)
{
call_verification_task(&verify_error);
}
else if (7 == 1)
{
call_verification_task(&verify_zero_input_limit_cycle);
}
else if (7 == 4)
{
call_verification_task(&verify_timing_msp_430);
}
else if (7 == 5)
{
call_verification_task(&verify_generic_timing);
}
else if (7 == 7)
{
call_verification_task(&verify_stability);
}
else if (7 == 8)
{
call_verification_task(&verify_minimum_phase);
}
else if (7 == 9)
{
call_closedloop_verification_task(&verify_stability_closedloop_using_dslib);
}
else if (7 == 10)
{
call_closedloop_verification_task(&verify_limit_cycle_closed_loop);
}
else if (7 == 11)
{
call_closedloop_verification_task(&verify_error_closedloop);
}
else if (7 == 12)
{
verify_error_state_space();
}
else if (7 == 16)
{
verify_safety_state_space();
}
else if (7 == 13)
{
verify_controllability();
}
else if (7 == 14)
{
verify_observability();
}
else if (7 == 15)
{
verify_limit_cycle_state_space();
}
else if (7 == 18)
{
call_verification_task(&verify_magnitude);
}
return 0;
}
void validation()
{
if (7 == 12 || 7 == 16 ||
7 == 15 || 7 == 13 ||
7 == 14)
{
if (0 == 0)
{
printf("\n\n********************************************************************************************\n");
printf("* set a K_SIZE to use this property in DSVerifier (use: -DK_SIZE=VALUE) *\n");
printf("********************************************************************************************\n");
__DSVERIFIER_assert(0);
exit(1);
}
initials();
return;
}
if (((7 != 9) && (7 != 10) &&
(7 != 11)) && (ds.a_size == 0 || ds.b_size == 0))
{
printf("\n\n****************************************************************************\n");
printf("* set (ds and impl) parameters to check with DSVerifier *\n");
printf("****************************************************************************\n");
__DSVERIFIER_assert(0);
}
if ((7 == 9) || (7 == 10) ||
(7 == 11))
{
if (controller.a_size == 0 || plant.b_size == 0 || impl.int_bits == 0 )
{
printf("\n\n*****************************************************************************************************\n");
printf("* set (controller, plant, and impl) parameters to check CLOSED LOOP with DSVerifier *\n");
printf("*****************************************************************************************************\n");
__DSVERIFIER_assert(0);
}
else
{
printf("\n\n*****************************************************************************************************\n");
printf("* set (controller and impl) parameters so that they do not overflow *\n");
printf("*****************************************************************************************************\n");
unsigned j;
for (j = 0; j < controller.a_size; ++j)
{
const double value=controller.a[j];
__DSVERIFIER_assert(value <= _dbl_max);
__DSVERIFIER_assert(value >= _dbl_min);
}
for (j = 0; j < controller.b_size; ++j)
{
const double value=controller.b[j];
__DSVERIFIER_assert(value <= _dbl_max);
__DSVERIFIER_assert(value >= _dbl_min);
}
}
if (controller.b_size > 0)
{
unsigned j, zeros=0;
for (j = 0; j < controller.b_size; ++j)
{
if (controller.b[j]==0)
++zeros;
}
if (zeros == controller.b_size)
{
printf("\n\n*****************************************************************************************************\n");
printf("* The controller numerator must not be zero *\n");
printf("*****************************************************************************************************\n");
__DSVERIFIER_assert(0);
}
}
if (controller.a_size > 0)
{
unsigned j, zeros=0;
for (j = 0; j < controller.a_size; ++j)
{
if (controller.a[j]==0)
++zeros;
}
if (zeros == controller.a_size)
{
printf("\n\n*****************************************************************************************************\n");
printf("* The controller denominator must not be zero *\n");
printf("*****************************************************************************************************\n");
__DSVERIFIER_assert(0);
}
}
if (0 == 0)
{
printf("\n\n***************************************************************************************************************\n");
printf("* set a connection mode to check CLOSED LOOP with DSVerifier (use: --connection-mode TYPE) *\n");
printf("***************************************************************************************************************\n");
__DSVERIFIER_assert(0);
}
}
if (7 == 0)
{
printf("\n\n***************************************************************************************\n");
printf("* set the property to check with DSVerifier (use: --property NAME) *\n");
printf("***************************************************************************************\n");
__DSVERIFIER_assert(0);
}
if ((7 == 3) || (7 == 2) || (7 == 1) ||
(7 == 10) || (7 == 11) ||
(7 == 4 || 7 == 5) || 7 == 6)
{
if ((15 == 0) && !(0 == 1))
{
printf("\n\n********************************************************************************************\n");
printf("* set a X_SIZE to use this property in DSVerifier (use: --x-size VALUE) *\n");
printf("********************************************************************************************\n");
__DSVERIFIER_assert(0);
}
else if (0 == 1)
{
X_SIZE_VALUE = nondet_uint();
__DSVERIFIER_assume( X_SIZE_VALUE > (2 * ds.a_size));
}
else if (15 < 0)
{
printf("\n\n********************************************************************************************\n");
printf("* set a X_SIZE > 0 *\n");
printf("********************************************************************************************\n");
__DSVERIFIER_assert(0);
}
else
{
X_SIZE_VALUE = 15;
}
}
if ((1 == 0) && (7 != 9) && (7 != 18))
{
printf("\n\n*********************************************************************************************\n");
printf("* set the realization to check with DSVerifier (use: --realization NAME) *\n");
printf("*********************************************************************************************\n");
__DSVERIFIER_assert(0);
}
if (7 == 6 || 7 == 11)
{
if (impl.max_error == 0)
{
printf("\n\n***********************************************************************\n");
printf("* provide the maximum expected error (use: impl.max_error) *\n");
printf("***********************************************************************\n");
__DSVERIFIER_assert(0);
}
}
if (7 == 4 || 7 == 5)
{
if (7 == 5 || 7 == 4)
{
if (hw.clock == 0l)
{
printf("\n\n***************************\n");
printf("* Clock could not be zero *\n");
printf("***************************\n");
__DSVERIFIER_assert(0);
}
hw.cycle = ((double) 1.0 / hw.clock);
if (hw.cycle < 0)
{
printf("\n\n*********************************************\n");
printf("* The cycle time could not be representable *\n");
printf("*********************************************\n");
__DSVERIFIER_assert(0);
}
if (ds.sample_time == 0)
{
printf("\n\n*****************************************************************************\n");
printf("* provide the sample time of the digital system (ds.sample_time) *\n");
printf("*****************************************************************************\n");
__DSVERIFIER_assert(0);
}
}
}
if (7 == 18)
{
if (!((filter.Ap > 0) && (filter.Ac >0) && (filter.Ar >0)))
{
printf("\n\n*****************************************************************************\n");
printf("* set values bigger than 0 for Ap, Ac and Ar* \n");
printf("*****************************************************************************\n");
__DSVERIFIER_assert(0);
}
}
if ((1 == 7) || (1 == 8) || (1 == 9) ||
(1 == 10) || (1 == 11) || (1 == 12))
{
printf("\n\n******************************************\n");
printf("* Temporarily the cascade modes are disabled *\n");
printf("**********************************************\n");
__DSVERIFIER_assert(0);
}
}
void call_verification_task(void * verification_task)
{
int i = 0;
_Bool base_case_executed = 0;
if (0 == 2)
{
for(i=0; i<ds.b_size; i++)
{
if (ds.b_uncertainty[i] > 0)
{
double factor = ds.b_uncertainty[i];
factor = factor < 0 ? factor * (-1) : factor;
double min = ds.b[i] - factor;
double max = ds.b[i] + factor;
if ((factor == 0) && (base_case_executed == 1))
{
continue;
}
else if ((factor == 0) && (base_case_executed == 0))
{
base_case_executed = 1;
}
ds.b[i] = nondet_double();
__DSVERIFIER_assume((ds.b[i] >= min) && (ds.b[i] <= max));
}
}
for(i=0; i<ds.a_size; i++)
{
if (ds.a_uncertainty[i] > 0)
{
double factor = ds.a_uncertainty[i];
factor = factor < 0 ? factor * (-1) : factor;
double min = ds.a[i] - factor;
double max = ds.a[i] + factor;
if ((factor == 0) && (base_case_executed == 1))
{
continue;
}
else if ((factor == 0) && (base_case_executed == 0))
{
base_case_executed = 1;
}
ds.a[i] = nondet_double();
__DSVERIFIER_assume((ds.a[i] >= min) && (ds.a[i] <= max));
}
}
}
else
{
int i=0;
for(i=0; i<ds.b_size; i++)
{
if (ds.b_uncertainty[i] > 0)
{
double factor = ((ds.b[i] * ds.b_uncertainty[i]) / 100);
factor = factor < 0 ? factor * (-1) : factor;
double min = ds.b[i] - factor;
double max = ds.b[i] + factor;
if ((factor == 0) && (base_case_executed == 1))
{
continue;
}
else if ((factor == 0) && (base_case_executed == 0))
{
base_case_executed = 1;
}
ds.b[i] = nondet_double();
__DSVERIFIER_assume((ds.b[i] >= min) && (ds.b[i] <= max));
}
}
for(i=0; i<ds.a_size; i++)
{
if (ds.a_uncertainty[i] > 0)
{
double factor = ((ds.a[i] * ds.a_uncertainty[i]) / 100);
factor = factor < 0 ? factor * (-1) : factor;
double min = ds.a[i] - factor;
double max = ds.a[i] + factor;
if ((factor == 0) && (base_case_executed == 1))
{
continue;
}
else if ((factor == 0) && (base_case_executed == 0))
{
base_case_executed = 1;
}
ds.a[i] = nondet_double();
__DSVERIFIER_assume((ds.a[i] >= min) && (ds.a[i] <= max));
}
}
}
((void(*)())verification_task)();
}
void call_closedloop_verification_task(void * closedloop_verification_task)
{
_Bool base_case_executed = 0;
int i=0;
for(i=0; i<plant.b_size; i++)
{
if (plant.b_uncertainty[i] > 0)
{
double factor = ((plant.b[i] * plant.b_uncertainty[i]) / 100);
factor = factor < 0 ? factor * (-1) : factor;
double min = plant.b[i] - factor;
double max = plant.b[i] + factor;
if ((factor == 0) && (base_case_executed == 1))
{
continue;
}
else if ((factor == 0) && (base_case_executed == 0))
{
base_case_executed = 1;
}
plant.b[i] = nondet_double();
__DSVERIFIER_assume((plant.b[i] >= min) && (plant.b[i] <= max));
}else{
}
}
for(i=0; i<plant.a_size; i++)
{
if (plant.a_uncertainty[i] > 0)
{
double factor = ((plant.a[i] * plant.a_uncertainty[i]) / 100);
factor = factor < 0 ? factor * (-1) : factor;
double min = plant.a[i] - factor;
double max = plant.a[i] + factor;
if ((factor == 0) && (base_case_executed == 1))
{
continue;
}
else if ((factor == 0) && (base_case_executed == 0))
{
base_case_executed = 1;
}
plant.a[i] = nondet_double();
__DSVERIFIER_assume((plant.a[i] >= min) && (plant.a[i] <= max));
}
else
{
}
}
((void(*)())closedloop_verification_task)();
}
# 2 "benchmarks/ds-07-impl1.c" 2
digital_system ds = {
.b = { 0.1, -0.09998 },
.b_size = 2,
.a = { 1.0, -1.0 },
.a_size = 2,
.sample_time = 0.02
};
implementation impl = {
.int_bits = 4,
.frac_bits = 12,
.max = 1.0,
.min = -1.0
};
|
the_stack_data/220456555.c | /* ヘッダファイルのインクルード */
#include <stdio.h> /* 標準入出力 */
/* 関数のプロトタイプ宣言 */
void static_variable_func(void); /* static変数を中で使っている関数static_variable_funのプロトタイプ宣言. */
/* main関数の定義 */
int main(void){
/* static変数を中で使っている関数を呼ぶ.(1回目) */
static_variable_func(); /* static_variable_funcを呼ぶ. */
/* static変数を中で使っている関数を呼ぶ.(2回目) */
static_variable_func(); /* static_variable_funcを呼ぶ. */
/* static変数を中で使っている関数を呼ぶ.(3回目) */
static_variable_func(); /* static_variable_funcを呼ぶ. */
/* プログラムの終了 */
return 0;
}
/* static_variable_funcの定義 */
void static_variable_func(void){ /* 中でstatic変数にアクセス. */
/* 変数の宣言・初期化 */
static int a; /* staticなint型変数a. */
static int b = 10; /* staticなint型変数bを10に初期化. */
int x = 0; /* staticではないint型変数xを0に初期化. */
/* static変数の値を出力. */
printf("a = %d\n", a); /* aの値を出力. */
printf("b = %d\n", b); /* bの値を出力. */
printf("x = %d\n", x); /* xの値を出力. */
/* static変数の値を変更. */
a = a + 10; /* aの値を10増やす. */
b = b + 10; /* bの値を10増やす. */
x = x + 10; /* xの値を10増やす. */
}
|
the_stack_data/206394132.c | /* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_iterative_factorial.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: anowak <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2014/09/02 17:10:21 by anowak #+# #+# */
/* Updated: 2014/09/02 17:52:25 by anowak ### ########.fr */
/* */
/* ************************************************************************** */
int ft_iterative_factorial(int nb)
{
int i;
int x;
i = 1;
x = 1;
if ((nb < 0) || (nb > 12))
return (0);
while (i <= nb)
{
x *= i;
i++;
}
return (x);
}
|
the_stack_data/167331263.c | //===========================================================================
//
// FILE: 6035.c:
//
// Author: Sam Larsen
// Date: Mon Dec 6 23:43:53 2004
//
// Function: A few external functions we can use to read and write
// black & white pgm images in a Decaf program. This is
// quick and dirty -- there's little error checking and
// input files must conform to a strict format.
//
// Modifications by Michael Gordon in Fall 2006
// Added benchmarking functionality
// Added data-parallelization library
//
// Modifications by Michal Karczmarek in Fall 2007
// Changed names of globals to make sure they are all unique
// Added color ppm support.
//
//===========================================================================
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>
//#include "papiex.h"
static FILE* fp_6035 = NULL;
static int cols_6035 = 0;
static int rows_6035 = 0;
static struct timeval* t1_6035;
static struct timeval* t2_6035;
static struct timeval* diff_6035;
static int _NUM_THREADS_6035;
int timeval_subtract (result, x, y)
struct timeval *result, *x, *y;
{
/* Perform the carry for the later subtraction by updating y. */
if (x->tv_usec < y->tv_usec) {
int nsec = (y->tv_usec - x->tv_usec) / 1000000 + 1;
y->tv_usec -= 1000000 * nsec;
y->tv_sec += nsec;
}
if (x->tv_usec - y->tv_usec > 1000000) {
int nsec = (x->tv_usec - y->tv_usec) / 1000000;
y->tv_usec += 1000000 * nsec;
y->tv_sec -= nsec;
}
/* Compute the time remaining to wait.
tv_usec is certainly positive. */
result->tv_sec = x->tv_sec - y->tv_sec;
result->tv_usec = x->tv_usec - y->tv_usec;
/* Return 1 if result is negative. */
return x->tv_sec < y->tv_sec;
}
void start_caliper() {
t1_6035 = (struct timeval *)malloc(sizeof(struct timeval));
t2_6035 = (struct timeval *)malloc(sizeof(struct timeval));
diff_6035 = (struct timeval *)malloc(sizeof(struct timeval));
gettimeofday(t1_6035, NULL);
}
void end_caliper() {
gettimeofday(t2_6035, NULL);
timeval_subtract(diff_6035, t2_6035, t1_6035);
printf("Timer: %d usecs\n", ((1000000 * diff_6035->tv_sec) + diff_6035->tv_usec));
}
void set_num_threads(int i) {
_NUM_THREADS_6035 = i;
}
void create_and_run_threads(void* (*f)(void *) ) {
pthread_t thread[_NUM_THREADS_6035];
pthread_attr_t attr;
int i, rc, status;
//set the status of each thread created as joinable
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
// create the threads and pass to each instance its ID
// note that 0th thread is called from *this* thread
// without spawning an extra thread!
for (i = 1; i < _NUM_THREADS_6035; i++) {
//create the thread id passing/sharing structure
rc = pthread_create(&thread[i], &attr, f, (void*)i);
if (rc) {
printf("ERROR: cannot create thread!\n");
exit(-1);
}
}
// call for the 0th thread
f ((void*)0);
//join the threads
for (i = 1; i < _NUM_THREADS_6035; i++) {
rc = pthread_join(thread[i], (void**)&status);
if (rc) {
printf("ERROR: cannot join thread! \n");
exit(-1);
}
}
}
void pgm_open_for_read(char* name)
{
int n;
fp_6035 = fopen(name, "r");
if (fp_6035 == NULL)
{
fprintf(stderr, "error opening %s\n", name);
exit(1);
}
fscanf(fp_6035, "P2%d%d%d", &cols_6035, &rows_6035, &n);
}
u_int64_t pgm_get_cols()
{
return (u_int64_t)cols_6035;
}
u_int64_t pgm_get_rows()
{
return (u_int64_t)rows_6035;
}
u_int64_t pgm_get_next_pixel()
{
int p;
fscanf(fp_6035, "%d", &p);
return (u_int64_t)p;
}
void pgm_close()
{
fclose(fp_6035);
fp_6035 = NULL;
}
void pgm_open_for_write(char* name, int c, int r)
{
fp_6035 = fopen(name, "w");
if (fp_6035 == NULL)
{
fprintf(stderr, "ERROR opening %s\n", name);
exit(1);
}
fprintf(fp_6035, "P2\n%d %d\n255\n", c, r);
}
void pgm_write_next_pixel(int p)
{
fprintf(fp_6035, "%d ", p);
}
void ppm_open_for_read(char* name)
{
int n;
fp_6035 = fopen(name, "r");
if (fp_6035 == NULL)
{
fprintf(stderr, "error opening %s\n", name);
exit(1);
}
fscanf(fp_6035, "P3%d%d%d", &cols_6035, &rows_6035, &n);
}
u_int64_t ppm_get_cols()
{
return (u_int64_t)cols_6035;
}
u_int64_t ppm_get_rows()
{
return (u_int64_t)rows_6035;
}
u_int64_t ppm_get_next_pixel_color()
{
int p;
fscanf(fp_6035, "%d", &p);
return (u_int64_t)p;
}
void ppm_close()
{
fclose(fp_6035);
fp_6035 = NULL;
}
void ppm_open_for_write(char* name, int c, int r)
{
fp_6035 = fopen(name, "w");
if (fp_6035 == NULL)
{
fprintf(stderr, "ERROR opening %s\n", name);
exit(1);
}
fprintf(fp_6035, "P3\n%d %d\n255\n", c, r);
}
void ppm_write_next_pixel(int r, int g, int b)
{
fprintf(fp_6035, "%d %d %d ", r, g, b);
}
|
the_stack_data/59511957.c | #include <stdio.h>
int main(void){
int x = 5;
int* p = &x;
if (sizeof(! 0) != sizeof(int)) { printf("bad !\n"); }
if (sizeof(5 == 6) != sizeof(int)) { printf("bad ==\n"); }
if (sizeof(2 != 3) != sizeof(int)) { printf("bad !=\n"); }
if (sizeof(~(char)5) != sizeof(int)) { printf("bad ~char\n"); }
if (sizeof(3 % 1) != sizeof(int)) { printf("bad %\n"); }
if (sizeof(*p) != sizeof(int)) { printf("bad *\n"); }
return 0;
}
|
the_stack_data/132952765.c | #include <stdio.h>
#include <string.h>
#define MAX_LENGHT 12
int check_symbols(char serial_number[MAX_LENGHT]);
int check_date(char serial_number[MAX_LENGHT]);
int check_control_number(char serial_number[MAX_LENGHT]);
int main(){
char serial_number[MAX_LENGHT];
scanf("%s", serial_number);
if(check_symbols(serial_number) == 1){
if(check_date(serial_number) == 1){
if(check_control_number(serial_number) == 1){
printf("1");
return 0;
}
}
}
printf("0");
return 0;
}
int check_symbols(char serial_number[MAX_LENGHT]){
int lenght = 0;
for(int i = 0; i < strlen(serial_number); i++, lenght ++){
if((serial_number[i] < '0') || (serial_number[i] > '9')){
return 0;
}
}
if(lenght != 10){
return 0;
}
return 1;
}
int check_date(char serial_number[MAX_LENGHT]){
int date;
int month;
int year;
int max_date = 31;
date = (serial_number[4] - '0') * 10 + (serial_number[5] -'0');
month = (serial_number[2] - '0') * 10 + (serial_number[3] -'0');
year = (serial_number[0] - '0') * 10 + (serial_number[1] -'0');
if(!((month >= 1 && month <= 12) || (month >= 21 && month <= 32) || (month >= 41 && month <= 52))){
return 0;
}
switch(month){
case 1: max_date = 31; break;
case 2: if(year % 4 == 0){
max_date = 29;
}
else{
max_date = 28;
} break;
case 3: max_date = 31; break;
case 4: max_date = 30; break;
case 5: max_date = 31; break;
case 6: max_date = 30; break;
case 7: max_date = 31; break;
case 8: max_date = 31; break;
case 9: max_date = 30; break;
case 10: max_date = 31; break;
case 11: max_date = 30; break;
case 12: max_date = 31; break;
case 21: max_date = 31; break;
case 22: if(year % 4 == 0){
max_date = 29;
}
else{
max_date = 28;
} break;
case 23: max_date = 31; break;
case 24: max_date = 30; break;
case 25: max_date = 31; break;
case 26: max_date = 30; break;
case 27: max_date = 31; break;
case 28: max_date = 31; break;
case 29: max_date = 30; break;
case 30: max_date = 31; break;
case 31: max_date = 30; break;
case 32: max_date = 31; break;
case 41: max_date = 31; break;
case 42: if(year % 4 == 0){
max_date = 29;
}
else{
max_date = 28;
} break;
case 43: max_date = 31; break;
case 44: max_date = 30; break;
case 45: max_date = 31; break;
case 46: max_date = 30; break;
case 47: max_date = 31; break;
case 48: max_date = 31; break;
case 49: max_date = 30; break;
case 50: max_date = 31; break;
case 51: max_date = 30; break;
case 52: max_date = 31; break;
}
if((1 <= date) && (date <= max_date)){
return 1;
}
return 0;
}
int check_control_number(char serial_number[MAX_LENGHT]){
int control_number = 0;
char weight[10] = {2, 4, 8, 5, 10, 9, 7, 3, 6};
for(int i = 0; i < 9; i++){
control_number = ((serial_number[i] - '0') * weight[i]) + control_number;
}
control_number = control_number % 11;
if((serial_number[9] - '0') == control_number){
return 1;
}
return 0;
}
|
the_stack_data/64201606.c | #include <stdio.h>
int main() {
char buf[] = "aaa bbb ccc ddd eee fff ggg";
FILE *fp = popen("wc -w", "w");
fwrite(buf, sizeof(buf), 1, fp);
pclose(fp);
}
|
the_stack_data/1223564.c | /* PR optimization/18577 */
/* Origin: Falk Hueffner <[email protected]> */
/* { dg-do run } */
/* { dg-options "-O2 -funroll-all-loops" } */
static float tfcos12[3];
__attribute__((noinline)) double f(double x) { return x; }
int g;
int main(void)
{
int i, j;
for (i = 0; i < 1; i++)
tfcos12[i] = 0.5;
for (i = 0; i < 1; i++)
{
tfcos12[i] = 0.5 * f(i);
for (j = 0; j < 12; j++)
g++;
}
return 0;
}
|
the_stack_data/6389070.c | #include <stdio.h>
#include <string.h>
#include <stdlib.h>
int
main(argc, argv)
char **argv;
{
int nl = 1;
int i;
if ( (argc > 1) && (strcmp(argv[1], "-n") == 0) ) {
++argv;
--argc;
nl = 0;
}
for ( i=1; i < argc; i++ ) {
if ( i > 1 ) putchar(' ');
fputs(argv[i], stdout);
}
if (nl) putchar('\n');
exit(0);
}
|
the_stack_data/59513404.c | /*
* parallel-simple2.c -- Archer testcase
*/
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
//
// See tools/archer/LICENSE.txt for details.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// RUN: %libarcher-compile-and-run | FileCheck %s
#include <omp.h>
#include <stdio.h>
int main(int argc, char *argv[]) {
int var = 0;
// Create team of threads so that there is no implicit happens before
// when creating the thread.
#pragma omp parallel num_threads(2)
{}
var++;
#pragma omp parallel num_threads(2) shared(var)
{
if (omp_get_thread_num() == 1) {
var++;
}
} // implicit barrier
fprintf(stderr, "DONE\n");
int error = (var != 2);
return error;
}
// CHECK-NOT: ThreadSanitizer: data race
// CHECK-NOT: ThreadSanitizer: reported
// CHECK: DONE
|
the_stack_data/220454806.c | /*
*******************************************************************************
* Copyright (c) 2020-2021, STMicroelectronics
* All rights reserved.
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
*******************************************************************************
*/
#if defined(ARDUINO_GENERIC_L010F4PX) || defined(ARDUINO_GENERIC_L011F3PX) ||\
defined(ARDUINO_GENERIC_L011F4PX) || defined(ARDUINO_GENERIC_L021F4PX)
#include "pins_arduino.h"
/**
* @brief System Clock Configuration
* @param None
* @retval None
*/
WEAK void SystemClock_Config(void)
{
/* SystemClock_Config can be generated by STM32CubeMX */
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Configure the main internal regulator output voltage
*/
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLLMUL_4;
RCC_OscInitStruct.PLL.PLLDIV = RCC_PLLDIV_2;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
{
Error_Handler();
}}
#endif /* ARDUINO_GENERIC_* */
|
the_stack_data/43887886.c | #include<stdio.h>
#include<stdlib.h>
struct node{
int data;
struct node *next;
}*head=NULL;
|
the_stack_data/432801.c | /*
* Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#if defined(_WIN32)
# include <windows.h>
#endif
#include <openssl/crypto.h>
#if defined(OPENSSL_THREADS) && !defined(CRYPTO_TDEBUG) && defined(OPENSSL_SYS_WINDOWS)
CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void)
{
CRYPTO_RWLOCK *lock;
if ((lock = OPENSSL_zalloc(sizeof(CRITICAL_SECTION))) == NULL) {
/* Don't set error, to avoid recursion blowup. */
return NULL;
}
# if !defined(_WIN32_WCE)
/* 0x400 is the spin count value suggested in the documentation */
if (!InitializeCriticalSectionAndSpinCount(lock, 0x400)) {
OPENSSL_free(lock);
return NULL;
}
# else
InitializeCriticalSection(lock);
# endif
return lock;
}
int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK *lock)
{
EnterCriticalSection(lock);
return 1;
}
int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK *lock)
{
EnterCriticalSection(lock);
return 1;
}
int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK *lock)
{
LeaveCriticalSection(lock);
return 1;
}
void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK *lock)
{
if (lock == NULL)
return;
DeleteCriticalSection(lock);
OPENSSL_free(lock);
return;
}
# define ONCE_UNINITED 0
# define ONCE_ININIT 1
# define ONCE_DONE 2
/*
* We don't use InitOnceExecuteOnce because that isn't available in WinXP which
* we still have to support.
*/
int CRYPTO_THREAD_run_once(CRYPTO_ONCE *once, void (*init)(void))
{
LONG volatile *lock = (LONG *)once;
LONG result;
if (*lock == ONCE_DONE)
return 1;
do {
result = InterlockedCompareExchange(lock, ONCE_ININIT, ONCE_UNINITED);
if (result == ONCE_UNINITED) {
init();
*lock = ONCE_DONE;
return 1;
}
} while (result == ONCE_ININIT);
return (*lock == ONCE_DONE);
}
int CRYPTO_THREAD_init_local(CRYPTO_THREAD_LOCAL *key, void (*cleanup)(void *))
{
*key = TlsAlloc();
if (*key == TLS_OUT_OF_INDEXES)
return 0;
return 1;
}
void *CRYPTO_THREAD_get_local(CRYPTO_THREAD_LOCAL *key)
{
DWORD last_error;
void *ret;
/*
* TlsGetValue clears the last error even on success, so that callers may
* distinguish it successfully returning NULL or failing. It is documented
* to never fail if the argument is a valid index from TlsAlloc, so we do
* not need to handle this.
*
* However, this error-mangling behavior interferes with the caller's use of
* GetLastError. In particular SSL_get_error queries the error queue to
* determine whether the caller should look at the OS's errors. To avoid
* destroying state, save and restore the Windows error.
*
* https://msdn.microsoft.com/en-us/library/windows/desktop/ms686812(v=vs.85).aspx
*/
last_error = GetLastError();
ret = TlsGetValue(*key);
SetLastError(last_error);
return ret;
}
int CRYPTO_THREAD_set_local(CRYPTO_THREAD_LOCAL *key, void *val)
{
if (TlsSetValue(*key, val) == 0)
return 0;
return 1;
}
int CRYPTO_THREAD_cleanup_local(CRYPTO_THREAD_LOCAL *key)
{
if (TlsFree(*key) == 0)
return 0;
return 1;
}
CRYPTO_THREAD_ID CRYPTO_THREAD_get_current_id(void)
{
return GetCurrentThreadId();
}
int CRYPTO_THREAD_compare_id(CRYPTO_THREAD_ID a, CRYPTO_THREAD_ID b)
{
return (a == b);
}
int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock)
{
*ret = (int)InterlockedExchangeAdd((long volatile *)val, (long)amount) + amount;
return 1;
}
int openssl_init_fork_handlers(void)
{
return 0;
}
int openssl_get_fork_id(void)
{
return 0;
}
#endif
|
the_stack_data/87637188.c | #include <stdio.h>
#include <stdbool.h>
#define SIZE 8
int binaryToDecimal(bool* array, int size)
{
int result = 0;
int temp = 1;
for (int i = size - 1; i >= 0; i--)
{
if (array[i])
{
result += temp;
}
temp *= 2;
}
return result;
}
int compare(int firstNumber, int secondNumber)
{
if (firstNumber == secondNumber)
{
return 0;
}
if (firstNumber > secondNumber)
{
return 1;
}
if (firstNumber < secondNumber)
{
return 2;
}
}
bool testBinaryToDecimal(void)
{
bool array0[SIZE] = { false, false, false, false, false, false, false, false };
bool array5[SIZE] = { false, false, false, false, false, true, false, true };
bool array8[SIZE] = { false, false, false, false, true, false, false, false };
bool array15[SIZE] = { false, false, false, false, true, true, true, true, };
return binaryToDecimal(array15, SIZE) == 15 && binaryToDecimal(array8, SIZE) == 8 &&
binaryToDecimal(array5, SIZE) == 5 && binaryToDecimal(array0, SIZE) == 0;
}
bool testCompare(void)
{
int ten = 10;
int newTen = 10;
int one = 1;
if ((compare(ten, newTen) == 0) && (compare(ten, one) == 1) && (compare(one, ten) == 2))
{
return true;
}
return false;
}
int main(int argc, char* argv[])
{
if (!testBinaryToDecimal() || !testCompare())
{
return 111;
}
if (argc > 1)
{
return 0;
}
bool firstNumber[SIZE] = { true, false, false, false, false, true, true, true };
bool secondNumber[SIZE] = { true, false, true, false, true, false, false, true };
int decimalFirstNumber = binaryToDecimal(firstNumber, SIZE);
int decimalSecondNumber = binaryToDecimal(secondNumber, SIZE);
printf("%d %d", decimalFirstNumber, decimalSecondNumber);
switch (compare(decimalFirstNumber, decimalSecondNumber))
{
case 0:
printf("\nЧисла равны.");
break;
case 1:
printf("\nЧисло %d больше.", decimalFirstNumber);
break;
case 2:
printf("\nЧисло %d больше.", decimalSecondNumber);
break;
}
} |
the_stack_data/114492.c | #include<stdio.h>
int main(){
printf("Hello World!\n");
}
|
the_stack_data/182954115.c |
volatile int getidx(void) { return 2; }
int main(void) {
int array[5];
int idx = getidx();
// getidx() returns 2, but slicer
// does not know it, so array[idx] is
// pointer with unknown offset to array
array[idx] = 7;
test_assert(array[2] == 7);
return 0;
}
|
the_stack_data/462449.c |
/*@predicate who_is_taller{L}(int *x,integer j, integer last)=
@ \forall integer i; j < i < last ==> x[j] > x[i];
@
*/
/*@ predicate how_many{L}(int *x, integer counter, integer size,integer cnt) =
@ (counter < size) ?
@ (who_is_taller(x,counter,size))? how_many(x,counter+1,size,cnt-1)
@ : how_many(x,counter+1,size,cnt)
@ : cnt == 0;
@*/
/*@ requires 0< N <= 1000000 ;
@ requires \valid(x+(0..N-1));
@ requires \forall integer i;
0 <= i <= N-1 ==> 0< x[i] <= 1000000;
@ ensures how_many(x,0,N,\result);
@*/
int countWhoCanSee (int N, int x[])
{
int tallest = x[N-1];
int count = 1;
/*@ loop invariant -1 <= i < N-1;
@ loop invariant 1 <= count < N-i;
@ loop invariant \exists integer j;
@ i<j<N && tallest==x[j];
@ loop invariant \forall integer j;
@ i<j<N ==> tallest >=x[j];
@ loop invariant how_many(x,i+1,N,count);
@ loop assigns i,count,tallest;
@ loop variant i;
@*/
for (int i = N-2; i >= 0; i--)
if (tallest < x[i]) {
tallest = x[i];
count++;
}
return count;
}
|
the_stack_data/165768888.c | #include <stdio.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>
int main() {
char *s;
s = malloc(1024 * sizeof(char));
scanf("%[^\n]", s);
s = realloc(s, strlen(s) + 1);
for (char *c = s; *c != NULL; c++) {
if (*c == ' ') {
*c = '\n';
}
}
printf("%s", s);
return 0;
}
|
the_stack_data/178264684.c | #include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
char string_reverse(char array[], int size);
char pointer_reverse(char *pString);
int string_length(char *pString);
char *my_strcpy(char destination[], const char source[]);
char *my_strcat(char destination[], const char source[]);
int main(void)
{
int test_length = 0;
char my_str[] = "Life is good!";
char pointer[20] = "CptS 121 is cool!";
char copy[20] = { '\0' };
char append[40] = { "Cats" };
char testsourceappend[40] = "Elephant";
test_length = string_length(pointer);
//test_length = string_length(rts_ym);
printf("%d\n", test_length);
string_reverse(my_str, 13);
printf("%s", my_str);
putchar('\n');
pointer_reverse(pointer);
puts(pointer);
test_length = strlen(pointer);
printf("%d\n", test_length);
my_strcpy(copy, pointer);
puts(copy);
puts("end");
my_strcat(append, testsourceappend);
puts(append);
}
char string_reverse(char array[], int size)
{
int start = 0; //Indexing variables
int finish = size - 1;
int temp = 0;
while (start < finish)
{
temp = array[start];
array[start] = array[finish];
array[finish] = temp;
start++;
finish--;
}
}
char pointer_reverse(char *pString)
{
int start = 0; //Indexing variables
int finish = string_length(pString);
int temp = 0;
finish--;
while (start < finish)
{
temp = *(pString + start);
*(pString + start) = *(pString + finish);
*(pString + finish) = temp;
start++;
finish--;
}
}
int string_length(char *pString)
{
int c = 0;
for (c = 0; *(pString + c) != '\0';)
{
c++;
}
return c;
}
char *my_strcpy(char destination[], const char source[])
{
int i = 0;
for (; i < strlen(source) + 1; ++i)
{
destination[i] = source[i];
}
return destination;
}
char *my_strcat(char destination[], const char source[])
{
int i = 0, j = 0;
for (i = 0; i < strlen(source) + 1; ++i)
{
if (destination[i] == '\0')
{
for (j = 0; j < strlen(source) + 1; ++j)
{
destination[i + j] = source[j];
}
}
}
} |
the_stack_data/24729.c | /*
<TAGS>stats signal_processing</TAGS>
DESCRIPTION:
Calculate the amplitude of a frequency component in a signal, using the Goertzel algorithm
Output a power estimate for every input data point
- this is essentially a DFT for the specified frequency
- real-valued input is assumed
- a window slides along the data one sample at a time
- a Hann taper is applied to each window
- performed as if zero-padding were applied to each end of the input
- note that no padding is actually required
http://en.wikipedia.org/wiki/Goertzel_algorithm
Note: data should be interpolated to remove non-numberic values, NAN or INF
Note: that rather than the magnitude of the signal, this function calculates the amplitude
- hence the results reflect the original amplitude of the input signal
- each power magnitude is adjusted by (2.0/nwin) and the square-root is taken
USES:
- Fast detection of the energy envelope of a signal for phase-amplitude coupling
- Detection of a frequency in a signal
DEPENDENCY TREE:
No dependencies
ARGUMENTS:
float *input : data array to be filtered, fixed sample rate is assumed
float *power : data array to hold results (calling function must reserve memory)
size_t nn : size of input and power arrays (number of samples)
float sample_freq : sample frequency (Hz)
float freq : frequency of interest (Hz)
size_t nwin : size of the window used to integrate (typically 5*sample_freq/freq - i.e. 5 wavelengths)
char *message : message indicating success or reason for failure
RETURN VALUE:
success: 0
failure: -1
*/
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
int xf_power_goertzel2_f(float *input, float *power, size_t nn, float sample_freq, float freq, size_t nwin, char *message) {
char *thisfunc="xf_power_goertzel2_f\0";
long x,y,z;
size_t ii,jj,kk,ll,mm,stop,halfwin;
double *taper,aa,bb,cc,p1,p2,coef,scaling;
sprintf(message,"%s (success)",thisfunc);
scaling= 2.0 / (double)nwin;
halfwin= (size_t)(nwin/2);
coef= 2.0 * cosf(2.0 * M_PI * ((double)freq/(double)sample_freq) );
//TEST: for(ii=0;ii<nn;ii++) fprintf(stderr,"%ld %g %g\n",ii,input[ii],power[ii]); return(-1);
if(nn<4) {
sprintf(message,"xf_power_goertzel1_f (no filtering - number of input samples is less than 4)");
return(-1);
}
/* CREATE A MODIFIED HANN TAPER */
if((taper=(double *)malloc((nwin)*sizeof(double)))==NULL) {
sprintf(message,"xf_power_goertzel1_f (memory allocation problem)");
return(-1);
}
aa=(2.0*M_PI)/(nwin-1.0);
for(ii=0;ii<nwin;ii++) taper[ii] = 1.0 - cosf(ii*aa);
/*
1. CALCULATE THE POWER FOR THE BEGINNING OF THE ARRAY
- note that we begin with hypothetically negative positions
- consequently we cannot use size_t counters for most calculations but long integers instead
- this should be ok as numbers at the beginning of the file should fall within the range of long integers anyway
- zero is substituted for values of input[<0]
*/
x=(long)nwin*(-1);
for (x=x; x<0; x++) { // x= (-nwin) to zero
p1=p2=0.0;
z=x+nwin;
for(kk=0,y=x;y<z;y++) {
if(y>=0) bb= ((double)input[y]*taper[kk++])+(coef*p1)-p2;
else bb= (coef*p1)-p2;
p2= p1;
p1= bb;
}
z=x+halfwin;
if(z>=0) power[z] = sqrt(((p2*p2) + (p1*p1) - (p1*p2*coef)) * scaling);
}
/*
2. CALCULATE THE POWER FOR THE MIDDLE OF THE ARRAY
- note that power is calculated over a window beginning at position ii
- consequently the result applies to position ii+(nwin/2)
*/
stop= (nn-nwin)-1;
for (ii=0; ii<stop; ii++) {
p1=p2=0.0;
mm=ii+nwin;
for(kk=0,jj=ii;jj<mm;jj++) {
bb= ((double)input[jj]*taper[kk++])+(coef*p1)-p2;
p2= p1;
p1= bb;
}
power[ii+halfwin]= sqrt(((p2*p2) + (p1*p1) - (p1*p2*coef)) * scaling);
}
/*
3. CALCULATE THE POWER FOR THE END OF THE ARRAY
- note that the windows will begin to extend beyond nn
- zero is substituted for values of input[>=nn]
*/
for (ii=stop; ii<nn; ii++) {
p1=p2=0.0;
mm=ii+nwin;
for(kk=0,jj=ii;jj<mm;jj++) {
if(jj<nn) bb= ((double)input[jj]*taper[kk++])+(coef*p1)-p2;
else bb= (coef*p1)-p2;
p2= p1;
p1= bb;
}
jj=ii+halfwin;
if(jj<nn) power[jj]= sqrt(((p2*p2) + (p1*p1) - (p1*p2*coef)) * scaling);
}
free(taper);
return(0);
}
|
the_stack_data/175143030.c | #include <stdio.h>
#include <string.h>
int wcount(char *s)
{
int a=0,i=0;
while (s[i] != 0)
{
if ((s[i] != ' ' && s[i+1]==' ') || (s[i] != ' ' && s[i+1]==0))
a++;
i++;
}
printf("%d\n",a);
return 0;
}
main()
{
char p[100];
printf("Введите строку слов\n");
gets(p);
wcount(p);
return 0;
} |
the_stack_data/237643037.c |
#define _POSIX_C_SOURCE 200112L
#include <errno.h>
#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <sys/types.h>
#include <unistd.h>
#include <pwd.h>
#include <grp.h>
#ifdef UTMP_SYSTEMV
#include <utmp.h>
#define getutxent getutent
#define getutxid getutid
#define getutxline getutline
#define pututxline pututline
#define setutxent setutent
#define endutxent endutent
#define utmpx utmp
#else
#include <utmpx.h>
#endif
extern void die(const char *fmt, ...);
static struct utmpx utmp;
extern struct passwd *pw;
extern gid_t egid, gid;
/*
* From utmp(5)
* xterm and other terminal emulators directly create a USER_PROCESS
* record and generate the ut_id by using the string that suffix part of
* the terminal name (the characters following /dev/[pt]ty). If they find
* a DEAD_PROCESS for this ID, they recycle it, otherwise they create a new
* entry. If they can, they will mark it as DEAD_PROCESS on exiting and it
* is advised that they null ut_line, ut_time, ut_user, and ut_host as well.
*/
struct utmpx *
findutmp(int type)
{
struct utmpx *r;
utmp.ut_type = type;
setutxent();
for(;;) {
/*
* we can not use getutxline because we can search in
* DEAD_PROCESS to
*/
if(!(r = getutxid(&utmp)))
break;
if(!strcmp(r->ut_line, utmp.ut_line))
break;
memset(r, 0, sizeof(*r)); /* for Solaris, IRIX64 and HPUX */
}
return r;
}
void
addutmp(void)
{
unsigned ptyid;
char *pts, *cp, buf[5] = {'x'};
if (strlen(pw->pw_name) > sizeof(utmp.ut_user))
die("utmp:incorrect username %s", pw->pw_name);
if ((pts = ttyname(STDIN_FILENO)) == NULL)
die("utmp:error getting pty name\n");
for (cp = pts + strlen(pts) - 1; isdigit(*cp); --cp)
/* nothing */;
ptyid = atoi(++cp);
if (ptyid > 999 || strlen(pts + 5) > sizeof(utmp.ut_line))
die("utmp:Incorrect pts name %s\n", pts);
sprintf(buf + 1, "%03d", ptyid);
strncpy(utmp.ut_id, buf, 4);
/* remove /dev/ part of the string */
strncpy(utmp.ut_line, pts + 5, sizeof(utmp.ut_line));
if(!findutmp(DEAD_PROCESS))
findutmp(USER_PROCESS);
utmp.ut_type = USER_PROCESS;
strncpy(utmp.ut_user, pw->pw_name, sizeof(utmp.ut_user));
utmp.ut_pid = getpid();
utmp.ut_tv.tv_sec = time(NULL);
utmp.ut_tv.tv_usec = 0;
/* don't use no standard fields host and session */
setegid(egid);
if(!pututxline(&utmp))
die("utmp:error adding utmp entry:%s", strerror(errno));
setegid(gid);
endutxent();
}
void
delutmp(void)
{
struct utmpx *r;
setutxent();
if((r = getutxline(&utmp)) != NULL) {
r->ut_type = DEAD_PROCESS;
r->ut_tv.tv_usec = r->ut_tv.tv_sec = 0;
setgid(egid);
if (!pututxline(r))
die("utmp:error removing utmp entry:%s", strerror(errno));
setgid(gid);
}
endutxent();
}
|
the_stack_data/153268939.c | int a = 5;
int main() {
return a;
}
|
the_stack_data/1031766.c | #include <stdio.h>
int main(){
int in, inside;
char str;
inside=0;
do{
in = getchar();
if(in==EOF)break;
if(!inside && in == ' ')putchar('0');
if(in == ' '){
inside = 0;
putchar(in);
}
else if(inside){putchar(in);}
else if(inside == 0 && (in!='0' && in!=' ')){
inside = 1;
putchar(in);
}
}while(in != EOF);
printf("\n");
return 0;
} |
the_stack_data/61074335.c | /**
* lookup.c
*
* Computer Science 50
* Problem Set 6
*
* Tests functionality of lookup function for server.c
*
* Test input:
*
* /index.php
* /pure-html.html
* /kitten-little.jpg
* /cat.jpg
* /cat2.HTML
* /cat3.HtMl
* /favicon.ico
* /test.css
* /test.js
* /hello.php?name=Alice
* /hello.php?
*/
// number of bytes for buffers
#define BYTES 512
// header files
#include <arpa/inet.h>
#include <dirent.h>
#include <errno.h>
#include <limits.h>
#include <math.h>
#include <signal.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <ctype.h>
// types
typedef char BYTE;
// prototype
const char* lookup(const char* path);
int main(int argc, char* argv[])
{
//copies argv1 to path for test
char path[strlen(argv[1])];
for (int t = 0, n = strlen(argv[1]); t < n; t++)
{
path[t] = argv[1][t];
}
path[strlen(argv[1])] = '\0'; //null terminate path string
const char* rtn_value = lookup(path);
if (rtn_value != NULL)
{
printf("%s %s\n", path, rtn_value);
}
else
{
printf("NULL\n");
}
}
/**
* Function starts here
**/
const char* lookup(const char* path)
{
// iterate over path to find "."
int i = 0;
do
{
i++;
}
while (path[i] != 46);
// write extension to new string
char ext[5];
int j = 0;
while (isalpha(path[i+1]))
{
ext[j] = path[i+1];
i++;
j++;
}
ext[j] = '\0';
printf("%s\n", ext); // for testing purposes
// test extension
if (strcasecmp("css", ext) == 0)
{
return "text/css";
}
else if (strcasecmp("html", ext) == 0)
{
return "text/html";
}
else if (strcasecmp("gif", ext) == 0)
{
return "image/gif";
}
else if (strcasecmp("ico", ext) == 0)
{
return "image/x-icon";
}
else if (strcasecmp("jpg", ext) == 0)
{
return "image/jpeg";
}
else if (strcasecmp("js", ext) == 0)
{
return "text/javascript";
}
else if (strcasecmp("php", ext) == 0)
{
return "text/x-php";
}
else if (strcasecmp("png", ext) == 0)
{
return "image/png";
}
return NULL;
}
|
the_stack_data/89373.c | /*
LambdaNative - a cross-platform Scheme framework
Copyright (c) 2009-2013, University of British Columbia
All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, are permitted provided that the
following conditions are met:
* Redistributions of source code must retain the above
copyright notice, this list of conditions and the following
disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials
provided with the distribution.
* Neither the name of the University of British Columbia nor
the names of its contributors may be used to endorse or
promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// simple parameter substitution tool with support for file inclusion
//#define DEBUG_SUBTOOL 1
#define PARAM_MAXLEN 42
#ifdef DEBUG_SUBTOOL
#define DMSG(fmt...) (fprintf(stderr,"SUBTOOL: " fmt),fprintf(stderr,"\n"))
#else
#define DMSG(fmt...)
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
struct pattern {
char *in;
char *out;
struct pattern *nxt;
};
struct pattern *fst=0, *lst=0;
void load_pattern(char *fname)
{
char buf[1024];
FILE *fd = fopen(fname,"r");
int i,l,n=0;
if (fd) {
while (1) {
buf[0]=0;
fgets(buf,1024,fd);
if (feof(fd)||ferror(fd)||buf[0]==0) break;
l=strlen(buf);
for (i=0;i<l;i++) { if (buf[i]>0 && buf[i]<32) buf[i]=0; }
for (i=1;i<l;i++) { if (buf[i]==buf[0]) break; }
buf[i]=0;
struct pattern *tmp = (struct pattern*)malloc(sizeof(struct pattern));
tmp->in = strdup((char*)&buf[1]);
tmp->out = strdup((char*)&buf[i+1]);
#ifdef MINGW32
// mangle windows drive directives to make tar happy
if (tmp->out[1]==':') {
tmp->out[1]=tmp->out[0];
tmp->out[0]='/';
}
#endif
DMSG("%s -> [%s]", tmp->in, tmp->out);
tmp->nxt=0;
if (!fst) {
fst=lst=tmp;
} else {
lst->nxt=tmp;
lst=tmp;
}
n++;
}
fclose(fd);
DMSG("%i patterns loaded",n);
}
}
void save_pattern(char *fname)
{
FILE *fd = fopen(fname,"w");
if (fd) {
struct pattern *tmp = fst;
while (tmp) {
fprintf(fd,":%s:%s\n",tmp->in,tmp->out);
tmp=tmp->nxt;
}
fclose(fd);
} else {
fprintf(stderr,"ERROR: error accessing pattern file: %s\n",fname);
exit(1);
}
}
char *match_pattern(char*);
struct parser {
char buf[1024];
int n, in_at;
};
char *parse_char(struct parser *p, char c)
{
// bail out of possible parameter impossible length, or <=32 ascii
if (p->in_at) {
if (c<=32||p->n>PARAM_MAXLEN||c==':') {
DMSG("parse_char bailed on c=%i n=%i", (int)c, p->n);
p->buf[p->n]=0;
printf("@%s%c", p->buf,c);
p->in_at=0;
p->buf[0]=0;
p->n=0;
return 0;
}
}
if (c=='@') {
if (p->in_at) { p->buf[p->n]=0; match_pattern(p->buf); p->n=0; }
p->in_at=1-p->in_at;
return 0;
} else {
p->buf[p->n]=c;
if (p->in_at) { p->n++; return 0; }
}
p->buf[p->n+1]=0;
return p->buf;
}
void parse_file(FILE *fd)
{
DMSG("parse_file(%p)", fd);
struct parser *p = (struct parser *)malloc(sizeof(struct parser));
p->n=0; p->in_at=0; p->buf[0]=0;
while (1) {
char c = fgetc(fd);
if (feof(fd)) break;
if (ferror(fd)) break;
char *data = parse_char(p,c);
if (data) printf("%s",data);
}
free(p);
}
char *match_pattern(char *buf)
{
DMSG("match_pattern(%s)", buf);
struct pattern *tmp = fst;
int match=0;
while (tmp) {
if (!strcmp(buf,tmp->in)) {
match=1;
if (tmp->out[0]=='@') {
FILE *fd = fopen(&tmp->out[1],"r");
if (fd) {
parse_file(fd);
fclose(fd);
} else {
// ignore non-existing file reference
}
} else {
fprintf(stdout,"%s",tmp->out);
}
}
tmp=tmp->nxt;
}
if (!match) {
fprintf(stderr,"ERROR: no match found for @%s@\n", buf);
exit(1);
}
return buf;
}
void usage()
{
printf("usage: subtool <pattern db> [<pattern> <substitution>]\n");
exit(1);
}
int main(int argc, char *argv[])
{
if (argc==1||argc>4) usage();
load_pattern(argv[1]);
if (argc==4) {
struct pattern *tmp = (struct pattern*)malloc(sizeof(struct pattern));
tmp->in = strdup(argv[2]);
tmp->out = strdup(argv[3]);
tmp->nxt=0;
if (!fst) {
fst=lst=tmp;
} else {
lst->nxt=tmp;
lst=tmp;
}
save_pattern(argv[1]);
} else {
parse_file(stdin);
}
return 0;
}
// eof
|
the_stack_data/786234.c | /*
* Copyright (c) 2005-2009, Kohsuke Ohtani
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <unistd.h>
#include <err.h>
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#ifdef CMDBOX
#define main(argc, argv) rm_main(argc, argv)
#endif
static void usage(void)
{
fprintf(stderr, "usage: rm file...\n");
exit(1);
}
int main(int argc, char* argv[])
{
int ch, rc;
while ((ch = getopt(argc, argv, "")) != -1)
switch (ch) {
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
if (argc == 0) {
usage();
return 0;
}
rc = 0;
do {
if ((rc = unlink(*argv)) < 0)
break;
++argv;
} while (*argv);
if (rc < 0)
err(1, "%s", *argv);
exit(rc);
}
|
the_stack_data/67326326.c | // gcc -lm abgabe.c -o abgabe.out -lm
// ./abgabe.out
// Ben Karcher Annika Hoverath
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#define Max_steps 10
#define PI 3.14159265358979323846
//aditional arguments are passed as arrays so that derivation and integration works genericaly
double integrant(double x, double *z_a); //e^(-x^2/a^2)/sqrt(z^2+x^2)
double potential(double z, double *a_q); //Calculates the potential at point z by integrating the integrant
double e_Field(double z, double *a_q); //Calculates the z component of the Electric field by finding the z derivative of the potential
double dz_integrant(double x, double *z_a); //the derivative of integrant with respect to z
double e_Field2(double z, double *a_q); //Calculates the z component of the Electric field by integrating dz_integrant
double combined_Potential(double z, double *a1_q1_a2_q2); //Calculates the potential of a two wire system at point z
double derive(double (*f)(double x, double *args), double *args, double x, double h);
double integrate(double (*f)(double x, double *args), double *args, double x1, double x2, int n);
double romberg(double (*f)(double x, double *args), double *args, double x1, double x2, int n, double tolerance);
int hash(int i, int k); //defines a triangular hashmap for
double extrema(double (*f)(double x, double *args), double *args, double x1, double x2);
int main(void)
{
//problem 1 prints the potential at 20000 values of z and 6 values of a into a file.
FILE *outputP;
outputP = fopen("potential1d16", "w");
if (outputP == NULL)
exit(EXIT_FAILURE);
for (double z = 0.00005; z < 2; z += 0.0001)
{
//fprintf(outputP, "%lf", z);
//for (double a_q[] = {4, 1}; a_q[0] > 0.003; a_q[0] /= 4)
//{
double a_q[] = {1.0/16.0, 1};
fprintf(outputP, "%lf %lf\n", z,potential(z, a_q));
//}
//fprintf(outputP, "\n");
}
//problem 2 calculates the value of E_z using two methods and prints the maximum error.
double max_error = 0;
double max_percent_error = 0;
for (double z = 2; z > 0.003; z /= 2)
{
for (double a_q[] = {4, 1}; a_q[0] > 0.003; a_q[0] /= 2)
{
double e1 = e_Field(z, a_q);
double e2 = e_Field2(z, a_q);
if (fabs(e1 - e2) > max_error)
{
max_error = fabs(e1 - e2);
}
if (fabs(2 * (e1 - e2) / (e1 + e2)) > max_error)
{
max_percent_error = fabs(2 * (e1 - e2) / (e1 + e2));
}
}
}
printf("The max percent error between the two methods was %lf%%\n", max_percent_error * 100);
printf("The max absolute error between the two methods was %lf\n", max_error);
//calculates the equilibrium point in a two wire system using a extreme value of the potential
for (double a2 = 4; a2 > 0.4; a2 /= 2)
{
double a1_q1_a2_q2[] = {4, 1, a2, 4};
printf("with a1=4, q1=1, a2=%lf, q2=4 The equilibrium point is a z=%lf\n", a1_q1_a2_q2[2], extrema(combined_Potential, a1_q1_a2_q2, 0.001, 11.999));
}
}
double integrant(double x, double *z_a)
{
return exp(-(x * x) / (z_a[1] * z_a[1])) / sqrt((x * x) + (z_a[0] * z_a[0]));
}
double potential(double z, double *a_q)
{
double args[] = {z, a_q[0]};
return a_q[1] / a_q[0] / sqrt(PI) * romberg(integrant, args, -10 * a_q[0], 10 * a_q[0], 50, 1e-8);
}
double e_Field(double z, double *a_q)
{
return -derive(potential, a_q, z, 0.001);
}
double dz_integrant(double x, double *z_a)
{
return -z_a[0] * exp(-(x * x) / (z_a[1] * z_a[1])) / pow(x * x + z_a[0] * z_a[0], 1.5);
}
double e_Field2(double z, double *a_q) //since the integral is with respect to x the d/dz can be pulled in as done here
{
double args[] = {z, a_q[0]};
return -a_q[1] / a_q[0] / sqrt(PI) * romberg(dz_integrant, args, -10 * a_q[0], 10 * a_q[0], 50, 1e-8);
}
double combined_Potential(double z, double *a1_q1_a2_q2)
{
return potential(z, a1_q1_a2_q2) + potential(12 - z, a1_q1_a2_q2 + 2);//by incrementing the pointer by 2 the second set of values is passed for the second wire
}
double derive(double (*f)(double x, double *args), double *args, double x, double h)
{
return (f(x + h, args) - f(x - h, args)) / (2 * h);
}
double integrate(double (*f)(double x, double *args), double *args, double x1, double x2, int n)// uses the trapezoid method
{
double h = (x2 - x1) / n; //width of each trapezoid
double right, left = f(x1, args); //the left and right value of the current trapezoid.
double sum = 0;
for (int i = 1; i <= n; i++)
{
right = f(x1 + h * i, args);
sum += (left + right) * h / 2;
left = right;
}
return sum;
}
int hash(int i, int k)//defines a triangular hashmap over i=[0,Maxsteps] k=[0,i]
{
return i + k * Max_steps - k * (k - 1) / 2;
}
double romberg(double (*f)(double x, double *args), double *args, double x1, double x2, int n, double tolerance)
{
double result;
double h[Max_steps + 1];
double partial_Integrals[Max_steps + 1];
double Ttilde[(Max_steps + 1) * (Max_steps + 2) / 2];
h[0] = (x2 - x1) / (double)(n - 1); //starting width
partial_Integrals[0] = integrate(f, args, x1, x2, n); //starting value
Ttilde[hash(0, 0)] = partial_Integrals[0];
for (int j = 1; j <= Max_steps; j++) //take up to Max_steps to reach the desired precission
{
h[j] = h[j - 1] / 2; //1/2 distance
n = 2 * n; //double step amount
partial_Integrals[j] = integrate(f, args, x1, x2, n);
Ttilde[hash(j, 0)] = partial_Integrals[j];
for (int k = 1; k <= j; k++)
{ //calculates the next aproximation using the formula derived in the lecture
Ttilde[hash(j, k)] = -h[j - k] * h[j - k] / (h[j] * h[j] - h[j - k] * h[j - k]) * Ttilde[hash(j, k - 1)] +
h[j] * h[j] / (h[j] * h[j] - h[j - k] * h[j - k]) * Ttilde[hash(j - 1, k - 1)];
}
result = Ttilde[hash(j, j)];
if (fabs(result - Ttilde[hash(j - 1, j - 1)]) <= tolerance)//checks if result is within tolerance
{
return result;
}
}
//printf("The deisred tolerance of %lf could not be reached in %d steps.\n", tolerance,Max_steps);
return result;
}
double extrema(double (*f)(double x, double *args), double *args, double x1, double x2)
{
double x3; //the next aproximation
do
{
x3 = x2 - derive(f, args, x2, 0.01) * (x2 - x1) / (derive(f, args, x2, 0.01) - derive(f, args, x1, 0.01)); //calculates the x intersect of a secant through f'(x1) and f'(x2)
x1 = x2;
x2 = x3;
} while (fabs(x2 - x1) > 1e-6); //terminates once the interval has been reduced to 1e-6
return x2;
} |
the_stack_data/69635.c | /* Generated by re2c */
// re2c $INPUT -o $OUTPUT -i --tags
#include <stddef.h>
#include <stdio.h>
static void lex(const char *YYCURSOR)
{
const char *YYMARKER, *p0, *p1, *p2, *p3;
const char *yyt1;const char *yyt2;
{
char yych;
yych = *YYCURSOR;
switch (yych) {
case '0': goto yy4;
default: goto yy2;
}
yy2:
++YYCURSOR;
yy3:
{ printf("error\n"); return; }
yy4:
yych = *(YYMARKER = ++YYCURSOR);
switch (yych) {
case '1':
yyt1 = YYCURSOR;
goto yy5;
case '2':
yyt1 = YYCURSOR;
goto yy8;
default: goto yy3;
}
yy5:
yych = *++YYCURSOR;
switch (yych) {
case '1': goto yy5;
case '2': goto yy8;
default: goto yy7;
}
yy7:
YYCURSOR = YYMARKER;
goto yy3;
yy8:
yych = *++YYCURSOR;
switch (yych) {
case '3':
yyt2 = YYCURSOR;
goto yy9;
case '4':
yyt2 = YYCURSOR;
goto yy11;
default: goto yy7;
}
yy9:
yych = *++YYCURSOR;
switch (yych) {
case '3': goto yy9;
case '4': goto yy11;
default: goto yy7;
}
yy11:
++YYCURSOR;
p1 = yyt1;
p3 = yyt2;
YYCURSOR -= 1;
p0 = yyt1 - 1;
p2 = yyt2 - 1;
{
printf("'%.*s', '%.*s', '%.*s', '%.*s', '%s'\n",
p1 - p0, p0,
p2 - p1, p1,
p3 - p2, p2,
YYCURSOR - p3, p3,
YYCURSOR);
return;
}
}
}
int main(int argc, char **argv)
{
for (int i = 1; i < argc; ++i) {
lex(argv[i]);
}
return 0;
}
|
the_stack_data/25137823.c | #include <stdio.h>
unsigned int shld5(unsigned int a, unsigned int b) {
unsigned int result;
// result = (a << 5) | (b >> (32 - 5)); // 此语句用嵌入式汇编编写
asm(
"shll %[a_count], %[a]\n"
"shrl %[b_count], %[b]\n"
"orl %[b], %[a]\n"
"movl %[a], %[result]"
: [result] "=r" (result)
: [a] "r" (a),
[a_count] "i" (5),
[b] "r" (b),
[b_count] "i" (32 - 5)
);
return result;
}
unsigned int _shld5(unsigned int a, unsigned int b) {
unsigned int result;
result = (a << 5) | (b >> (32 - 5)); // 此语句用嵌入式汇编编写
return result;
}
int main() {
unsigned int aa, bb;
printf("please input a and b: ");
scanf("%x %x", &aa, &bb);
printf("Your result of shld5 is \t0x%x\n", shld5(aa, bb));
printf("Correct result of shld5 is \t0x%x\n", _shld5(aa, bb));
} |
the_stack_data/161384.c |
struct JoinPoint {
void** (*fp) (struct JoinPoint *);
void ** args;
int argsCount;
const char ** argsType;
void * (*arg)(int, struct JoinPoint *);
const char * (*argType)(int , struct JoinPoint *);
void ** retValue;
const char * retType;
const char * funcName ;
const char * targetName ;
const char * fileName ;
const char * kind ;
void * excep_return ;
};
struct __UTAC__EXCEPTION {
void * jumpbuf ;
unsigned long long int prtValue ;
int pops;
struct __UTAC__CFLOW_FUNC {
int (*func)(int,int) ;
int val ;
struct __UTAC__CFLOW_FUNC * next;
} * cflowfuncs;
};
extern void __utac__exception__cf_handler_set(void * exception, int (*cflow_func)(int, int), int val) ;
extern void __utac__exception__cf_handler_free(void * exception);
extern void __utac__exception__cf_handler_reset(void * exception) ;
extern void * __utac__error_stack_mgt(void * env , int mode, int count) ;
# 1 "MyAspect.c"
# 1 "<built-in>"
# 1 "<command-line>"
# 1 "MyAspect.c"
# 5 "./Clock.h" 1
void Clock_Update();
#line 6 "./Clock.h"
int Clock_GetTime();
#line 3 "MyAspect.c"
inline void __utac_acc__Aspect__1(void) {
#line 4 "MyAspect.c"
Clock_Update(); }
|
the_stack_data/184516934.c | #include <stdio.h>
int main(int argc, char** argv) {
for(int i = 1; i < argc; ++i) {
printf("%s", argv[i]);
}
} |
the_stack_data/206394079.c | /*
Copyright 2015 Google LLC All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at:
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/*
american fuzzy lop - persistent mode example
--------------------------------------------
Written and maintained by Michal Zalewski <[email protected]>
This file demonstrates the high-performance "persistent mode" that may be
suitable for fuzzing certain fast and well-behaved libraries, provided that
they are stateless or that their internal state can be easily reset
across runs.
To make this work, the library and this shim need to be compiled in LLVM
mode using afl-clang-fast (other compiler wrappers will *not* work).
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <string.h>
/* Main entry point. */
int main(int argc, char** argv) {
char buf[100]; /* Example-only buffer, you'd replace it with other global or
local variables appropriate for your use case. */
/* The number passed to __AFL_LOOP() controls the maximum number of
iterations before the loop exits and the program is allowed to
terminate normally. This limits the impact of accidental memory leaks
and similar hiccups. */
while (__AFL_LOOP(1000)) {
/*** PLACEHOLDER CODE ***/
/* STEP 1: Fully re-initialize all critical variables. In our example, this
involves zeroing buf[], our input buffer. */
memset(buf, 0, 100);
/* STEP 2: Read input data. When reading from stdin, no special preparation
is required. When reading from a named file, you need to close
the old descriptor and reopen the file first!
Beware of reading from buffered FILE* objects such as stdin. Use
raw file descriptors or call fopen() / fdopen() in every pass. */
read(0, buf, 100);
/* STEP 3: This is where we'd call the tested library on the read data.
We just have some trivial inline code that faults on 'foo!'. */
if (buf[0] == 'f') {
printf("one\n");
if (buf[1] == 'o') {
printf("two\n");
if (buf[2] == 'o') {
printf("three\n");
if (buf[3] == '!') {
printf("four\n");
abort();
}
}
}
}
/*** END PLACEHOLDER CODE ***/
}
/* Once the loop is exited, terminate normally - AFL will restart the process
when this happens, with a clean slate when it comes to allocated memory,
leftover file descriptors, etc. */
return 0;
}
|
the_stack_data/167331328.c | /*********************************************************************
* SEGGER Microcontroller GmbH *
* The Embedded Experts *
**********************************************************************
* *
* (c) 1995 - 2019 SEGGER Microcontroller GmbH *
* *
* www.segger.com Support: [email protected] *
* *
**********************************************************************
* *
* SEGGER RTT * Real Time Transfer for embedded targets *
* *
**********************************************************************
* *
* All rights reserved. *
* *
* SEGGER strongly recommends to not make any changes *
* to or modify the source code of this software in order to stay *
* compatible with the RTT protocol and J-Link. *
* *
* Redistribution and use in source and binary forms, with or *
* without modification, are permitted provided that the following *
* condition is met: *
* *
* o Redistributions of source code must retain the above copyright *
* notice, this condition and the following disclaimer. *
* *
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND *
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, *
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF *
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE *
* DISCLAIMED. IN NO EVENT SHALL SEGGER Microcontroller BE LIABLE FOR *
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR *
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT *
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; *
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT *
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE *
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH *
* DAMAGE. *
* *
**********************************************************************
---------------------------END-OF-HEADER------------------------------
File : SEGGER_RTT_Syscalls_SES.c
Purpose : Reimplementation of printf, puts and __getchar using RTT
in SEGGER Embedded Studio.
To use RTT for printf output, include this file in your
application.
Revision: $Rev: 18539 $
----------------------------------------------------------------------
*/
#if (defined __SES_ARM) || (defined __SES_RISCV) || (defined __CROSSWORKS_ARM)
#include "SEGGER_RTT.h"
#include <stdarg.h>
#include <stdio.h>
#include "limits.h"
#include "__libc.h"
#include "__vfprintf.h"
/*********************************************************************
*
* Defines, configurable
*
**********************************************************************
*/
//
// Select string formatting implementation.
//
// RTT printf formatting
// - Configurable stack usage. (SEGGER_RTT_PRINTF_BUFFER_SIZE in SEGGER_RTT_Conf.h)
// - No maximum string length.
// - Limited conversion specifiers and flags. (See SEGGER_RTT_printf.c)
// Standard library printf formatting
// - Configurable formatting capabilities.
// - Full conversion specifier and flag support.
// - Maximum string length has to be known or (slightly) slower character-wise output.
//
// #define PRINTF_USE_SEGGER_RTT_FORMATTING 0 // Use standard library formatting
// #define PRINTF_USE_SEGGER_RTT_FORMATTING 1 // Use RTT formatting
//
#ifndef PRINTF_USE_SEGGER_RTT_FORMATTING
#define PRINTF_USE_SEGGER_RTT_FORMATTING 0
#endif
//
// If using standard library formatting,
// select maximum output string buffer size or character-wise output.
//
// #define PRINTF_BUFFER_SIZE 0 // Use character-wise output
// #define PRINTF_BUFFER_SIZE 128 // Default maximum string length
//
#ifndef PRINTF_BUFFER_SIZE
#define PRINTF_BUFFER_SIZE 128
#endif
#if PRINTF_USE_SEGGER_RTT_FORMATTING // Use SEGGER RTT formatting implementation
/*********************************************************************
*
* Function prototypes
*
**********************************************************************
*/
int SEGGER_RTT_vprintf(unsigned BufferIndex, const char * sFormat, va_list * pParamList);
/*********************************************************************
*
* Global functions, printf
*
**********************************************************************
*/
/*********************************************************************
*
* printf()
*
* Function description
* print a formatted string using RTT and SEGGER RTT formatting.
*/
int printf(const char *fmt,...) {
int n;
va_list args;
va_start (args, fmt);
n = SEGGER_RTT_vprintf(0, fmt, &args);
va_end(args);
return n;
}
#elif PRINTF_BUFFER_SIZE == 0 // Use standard library formatting with character-wise output
/*********************************************************************
*
* Static functions
*
**********************************************************************
*/
static int _putchar(int x, __printf_tag_ptr ctx) {
(void)ctx;
SEGGER_RTT_Write(0, (char *)&x, 1);
return x;
}
/*********************************************************************
*
* Global functions, printf
*
**********************************************************************
*/
/*********************************************************************
*
* printf()
*
* Function description
* print a formatted string character-wise, using RTT and standard
* library formatting.
*/
int printf(const char *fmt, ...) {
int n;
va_list args;
__printf_t iod;
va_start(args, fmt);
iod.string = 0;
iod.maxchars = INT_MAX;
iod.output_fn = _putchar;
SEGGER_RTT_LOCK();
n = __vfprintf(&iod, fmt, args);
SEGGER_RTT_UNLOCK();
va_end(args);
return n;
}
#else // Use standard library formatting with static buffer
/*********************************************************************
*
* Global functions, printf
*
**********************************************************************
*/
/*********************************************************************
*
* printf()
*
* Function description
* print a formatted string using RTT and standard library formatting.
*/
int printf(const char *fmt,...) {
int n;
char aBuffer[PRINTF_BUFFER_SIZE];
va_list args;
va_start (args, fmt);
n = vsnprintf(aBuffer, sizeof(aBuffer), fmt, args);
if (n > (int)sizeof(aBuffer)) {
SEGGER_RTT_Write(0, aBuffer, sizeof(aBuffer));
} else if (n > 0) {
SEGGER_RTT_Write(0, aBuffer, n);
}
va_end(args);
return n;
}
#endif
/*********************************************************************
*
* Global functions
*
**********************************************************************
*/
/*********************************************************************
*
* puts()
*
* Function description
* print a string using RTT.
*/
int puts(const char *s) {
return SEGGER_RTT_WriteString(0, s);
}
/*********************************************************************
*
* __putchar()
*
* Function description
* Write one character via RTT.
*/
int __putchar(int x, __printf_tag_ptr ctx) {
(void)ctx;
SEGGER_RTT_Write(0, (char *)&x, 1);
return x;
}
/*********************************************************************
*
* __getchar()
*
* Function description
* Wait for and get a character via RTT.
*/
int __getchar() {
return SEGGER_RTT_WaitKey();
}
#endif
/****** End Of File *************************************************/
|
the_stack_data/236367.c | #include<stdio.h>
int encaixa(int a, int b){
int tamanho2=0, div=1, i = 0, power = 1;
div = b;
while(div>0){
div = div/10;
i++;
}
tamanho2 = i;
for(int i = 0;i<tamanho2;i++){
power = power*10;
}
div = a%power;
return div == b;
} |
the_stack_data/170453452.c | #include<stdio.h>
int main()
{
double a, b;
(void)scanf("%lf %lf", &a, &b);
printf("%lf", a + b);
return 0;
} |
the_stack_data/62636744.c | #include <stdlib.h>
#include <string.h>
char *strsep(char **saveptr, const char *delim)
{
char *str, *tmp;
str = *saveptr;
if (str == NULL)
return NULL;
tmp = strpbrk(str, delim);
if (tmp)
{
*tmp = '\0';
*saveptr = tmp + 1;
}
else
{
*saveptr = NULL;
}
return (char *)str;
}
|
the_stack_data/357950.c |
#include <unistd.h>
#include <signal.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <strings.h>
#define PP_DEVICE "/dev/parport0"
#define PP_BASE_ADDR 0x278
#define PP_DATA_OFF 0
#define PP_STATUS_OFF 1
#define PP_CONTROL_OFF 2
unsigned long pp_base = PP_BASE_ADDR;
int main(int argc, char *argv[])
{
if(ioperm(pp_base, 4 /* num addr */, 1 /* perm */)){
printf("No permission for parport!\n");
return 1;
}
outb(0xff,pp_base + PP_DATA_OFF);
outb(0xff,pp_base + PP_CONTROL_OFF);
return 0;
}
|
the_stack_data/76779.c | #include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
bool isPowerOfTwo(int n) {
int cnt = 0; //num of bits 1
for (; n > 0; n >>= 1) {
if (n & 1) {
cnt++;
if (cnt > 1) return false;
}
}
return cnt == 1;
}
int main(int argc, char const *argv[]) {
int input1 = 16;
printf("Input: %d\n", input1);
printf("Output: %s\n", isPowerOfTwo(input1) ? "true" : "false");
return EXIT_SUCCESS;
}
|
the_stack_data/431791.c | #include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
void callee (int i)
{
/* Any output corrupts GDB CLI expect strings.
printf("callee: %d\n", i); */
}
int main (void)
{
int pid;
int v = 5;
pid = fork ();
if (pid == 0) /* set breakpoint here */
{
v++;
/* printf ("I'm the child!\n"); */
callee (getpid ());
}
else
{
v--;
/* printf ("I'm the proud parent of child #%d!\n", pid); */
callee (getpid ());
}
exit (0); /* at exit */
}
|
the_stack_data/9138.c | #define SIZE 0xF0000
// I was too lazy to put some value inside the list[SIZE]
int main()
{
double list[SIZE], sum = 0.;
for (long i = 0; i < SIZE; i++) sum += list[i];
/*
double list[SIZE], sum1 = 0., sum2 = 0., sum3 = 0., sum4 = 0.;
for (int i = 0; i < SIZE; i += 4) {
sum1 += list[i];
sum2 += list[i+1];
sum3 += list[i+2];
sum4 += list[i+3];
}
sum1 = (sum1 + sum2) + (sum3 + sum4);
*/
return 0;
}
|
the_stack_data/170451901.c | // [ACM] #10499 - The Land of Justice
// Problem Status CPU Date&Time(UTC) ID Best CPU
// 10499 Accepted 0.086 2006-11-09 03:39:42 5119903 0.029
#include<stdio.h>
int main(void)
{
long long int i, n;
while(scanf("%lld" , &n) == 1)
{
if(n < 0)
break;
else if(n != 1)
printf("%lld\%\n" , n * 25);
else
printf("0\%\n");
}
return 0;
}
|
the_stack_data/908570.c | // This file is part of CPAchecker,
// a tool for configurable software verification:
// https://cpachecker.sosy-lab.org
//
// SPDX-FileCopyrightText: 2007-2020 Dirk Beyer <https://www.sosy-lab.org>
//
// SPDX-License-Identifier: Apache-2.0
#include <stdio.h>
int main() {
char t = 50;
char* z1 = &t;
void* z2 = z1;
unsigned int* pi = z2;
printf ("pi = %u\n", *pi);
// We could dereference anything here
if (*pi != 50) {
printf ("UNSAFE\n");
goto ERROR;
}
printf ("SAFE\n");
return (0);
ERROR:
return (-1);
}
|
the_stack_data/132117.c | main () {
msg_bare ("~CLRS~0101");
return 1;
}
|
the_stack_data/115651.c | #include <math.h>
#include <stdio.h>
#include <stdlib.h>
double sqr (double x) { return x*x; }
const float h = 1.0f / 32.0f; /* timestep */
float integrate(float p, float q, int N) {
int n;
for (n = 0; n < N; n++) {
float a = -q;
q = q + h * p + (0.5f * (h * h)) * a;
p = p + (0.5f * h) * (a + -q);
}
return q;
}
float closedform(float p, float q, int N) {
double t=atan2(q,p);
double r=sqrt(sqr(q)+sqr(p));
return r*sin(t+h*N);
}
double sigma (double h) {
double h3 = h*h*h;
double a = sqrt (h3*h3+64);
double A = (h3*h3*h3*h+h3*h3*h*a+4*h3*h3+64*h3*h+4*h3*a+32*h*a+256)*sqr(h*h-2);
return sqrt (A / (2*(h3*h-4*h*h+4)*(sqr(-h3+8*h+a)+16*sqr(h*h-2))));
}
double error_bound(double h, int N) {
double tau_d = h*h*h;
double tau_r = 1.399e-7;
double sigma_h = sigma(h);
double acc = (tau_d+tau_r)*((pow(sigma_h,N)-1.0)/(sigma_h-1.0));
fprintf(stderr,"h=%f N=%d\n", h, N);
fprintf(stderr,"tau_d=%0.10f sigma_h=%0.10f acc=%f\n",
tau_d, sigma_h, acc);
return acc;
}
#define HIST 1000
int histogram[HIST];
double worst, worstp, worstq;
void generate (double *ap, double *aq) {
double dp,dq,p,q,r;
do {
dp=drand48(); dq=drand48();
/* p=1.0+0.02*(dp-0.5); q=0.0+0.2*(dq-0.5); */
p=0.995+0.002*(dp-0.5); q=0+0.2*(dq-0.5);
r=sqr(p)+sqr(q);
} while (r < 0.8 || r > 1.0);
*ap=p; *aq=q;
}
int main(int argc, char **argv) {
int numtries, N; int i, histmax=0;
if (argc!=3) {fprintf(stderr,"usage: findbad N num_tries\n"); exit(1);}
N=atoi(argv[1]);
if (N<0) {fprintf(stderr,"N must be positive\n"); exit(1);}
numtries=atoi(argv[2]);
if (numtries<=0) {fprintf(stderr,"num_tries must be positive\n"); exit(1);}
double bound = error_bound(h,N);
for (i=0; i<numtries; i++) {
double p,q, pN, err;
double disc,clos;
generate (&p, &q);
disc=integrate(p,q,N);
clos=closedform(p,q,N);
err = fabs(disc-clos);
if (err>worst*0.9999) {
printf("Bad: %5.2f%%, p=%f, q=%f %s\n",100.0*err/bound,p,q,
err>bound?"which is amazing!":
err>worst?"worst so far":
"");
fflush(stdout);
worst=err; worstp=p; worstq=q;
}
if (err<bound)
histogram[(int)(err*HIST/bound)]++;
}
for (i=0; i<HIST; i++) if (histogram[i]) histmax=i;
for (i=0; i<=histmax; i++)
printf(">= %5.2f%% : %10d\n",(i*bound/HIST)*100.0/bound, histogram[i]);
return 0;
}
|
the_stack_data/150140204.c | /* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_swap_int.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: ygarrot <[email protected]> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2019/01/05 10:50:18 by ygarrot #+# #+# */
/* Updated: 2019/01/28 19:38:58 by ygarrot ### ########.fr */
/* */
/* ************************************************************************** */
int ft_swap_int(int num)
{
return (((num >> 24) & 0xff) | ((num << 8) & 0xff0000) |
((num >> 8) & 0xff00) | ((num << 24) & 0xff000000));
}
|
the_stack_data/888989.c | #include <stdio.h>
#include <stdlib.h>
typedef struct point {
int x;
int y;
}Point;
int main()
{
int *ptr = (int *)malloc(10 * sizeof(int));
if (ptr == NULL) exit(1);
printf("%lu\n", sizeof(ptr) / sizeof(ptr[0]));
//when done like this then this will return the sizeof the address
//(the address taht ptr is pointing to instead of the array within the address)
return 0;
}
|
the_stack_data/24662.c | /**
* \addtogroup BSP
* \{
* \addtogroup DEVICES
* \{
* \addtogroup GPIO
* \{
*/
/**
****************************************************************************************
*
* @file hw_gpio.c
*
* @brief Implementation of the GPIO Low Level Driver.
*
* Copyright (c) 2016, Dialog Semiconductor
* All rights reserved.
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
****************************************************************************************
*/
#if dg_configUSE_HW_GPIO
#include <stdint.h>
#include <hw_gpio.h>
/* Register adresses */
#define PX_DATA_REG_ADDR(_port) ((volatile uint16_t *)(GPIO_BASE + offsetof(GPIO_Type, P0_DATA_REG)) + _port)
#define PX_DATA_REG(_port) *PX_DATA_REG_ADDR(_port)
#define PX_SET_DATA_REG_ADDR(_port) ((volatile uint16_t *)(GPIO_BASE + offsetof(GPIO_Type, P0_SET_DATA_REG)) + _port)
#define PX_SET_DATA_REG(_port) *PX_SET_DATA_REG_ADDR(_port)
#define PX_RESET_DATA_REG_ADDR(_port) ((volatile uint16_t *)(GPIO_BASE + offsetof(GPIO_Type, P0_RESET_DATA_REG)) + _port)
#define PX_RESET_DATA_REG(_port) *PX_RESET_DATA_REG_ADDR(_port)
#define PXX_MODE_REG_ADDR(_port, _pin) ((volatile uint16_t *)(GPIO_BASE + offsetof(GPIO_Type, P00_MODE_REG)) + (_port * 8) + _pin)
#define PXX_MODE_REG(_port, _pin) *PXX_MODE_REG_ADDR(_port, _pin)
#define PX_PADPWR_CTRL_REG_ADDR(_port) ((volatile uint16_t *)(GPIO_BASE + offsetof(GPIO_Type, P0_PADPWR_CTRL_REG)) + _port)
#define PX_PADPWR_CTRL_REG(_port) *PX_PADPWR_CTRL_REG_ADDR(_port)
/* on FPGA we cannot read the state of an output GPIO */
#ifdef FPGA_PAD_LOOPBACK_BROKEN
static uint16_t Px_DATA_REG_cache[5];
#endif
#if (dg_configIMAGE_SETUP == PRODUCTION_MODE) && (DEBUG_GPIO_ALLOC_MONITOR_ENABLED == 1)
#warning "GPIO assignment monitoring is active in PRODUCTION build!"
#endif
static volatile uint8_t GPIO_status[HW_GPIO_NUM_PORTS] = { 0 };
const uint8_t hw_gpio_port_num_pins[HW_GPIO_NUM_PORTS] =
{
HW_GPIO_PORT_0_NUM_PINS, HW_GPIO_PORT_1_NUM_PINS,
HW_GPIO_PORT_2_NUM_PINS, HW_GPIO_PORT_3_NUM_PINS,
HW_GPIO_PORT_4_NUM_PINS
};
/*
* Global Functions
****************************************************************************************
*/
void hw_gpio_configure(const gpio_config cfg[])
{
#if dg_configIMAGE_SETUP == DEVELOPMENT_MODE
int num_pins = 0;
uint8_t set_mask[HW_GPIO_NUM_PORTS];
#endif
if (!cfg)
{
return;
}
while (cfg->pin != 0xFF)
{
uint8_t port = cfg->pin >> 4;
uint8_t pin = cfg->pin & 0x0F;
#if dg_configIMAGE_SETUP == DEVELOPMENT_MODE
if (port >= HW_GPIO_NUM_PORTS || pin >= hw_gpio_port_num_pins[port])
{
/*
* invalid port or pin number specified, it was either incorrectly specified
* of cfg was not terminated properly using HW_GPIO_PINCONFIG_END so we're
* reading garbage
*/
__BKPT(0);
}
if (++num_pins > HW_GPIO_NUM_PINS)
{
/*
* trying to set more pins than available, perhaps cfg was not terminated
* properly using HW_GPIO_PINCONFIG_END?
*/
__BKPT(0);
}
if (set_mask[port] & (1 << pin))
{
/*
* trying to set pin which has been already set by this call which means
* there is duplicated pin in configuration - does not make sense
*/
__BKPT(0);
}
set_mask[port] |= (1 << pin);
#endif
if (cfg->reserve)
{
hw_gpio_reserve_and_configure_pin(port, pin, cfg->mode, cfg->func, cfg->high);
}
else
{
hw_gpio_configure_pin(port, pin, cfg->mode, cfg->func, cfg->high);
}
cfg++;
}
}
bool hw_gpio_reserve_pin(HW_GPIO_PORT port, HW_GPIO_PIN pin)
{
if ((GPIO_status[port] & (1 << pin)))
{
return false;
}
GPIO_status[port] |= (1 << pin);
return true;
}
bool hw_gpio_reserve_and_configure_pin(HW_GPIO_PORT port, HW_GPIO_PIN pin, HW_GPIO_MODE mode,
HW_GPIO_FUNC function, bool high)
{
if (!hw_gpio_reserve_pin(port, pin))
{
return false;
}
hw_gpio_configure_pin(port, pin, mode, function, high);
return true;
}
void hw_gpio_unreserve_pin(HW_GPIO_PORT port, HW_GPIO_PIN pin)
{
GPIO_status[port] &= ~(1 << pin);
}
static void hw_gpio_verify_reserved(HW_GPIO_PORT port, HW_GPIO_PIN pin)
{
#if (DEBUG_GPIO_ALLOC_MONITOR_ENABLED == 1)
if (!(GPIO_status[port] & (1 << pin)))
{
// If debugger stops at this line, there is configuration problem
// pin is used without being reserved first
__BKPT(0); /* this pin has not been previously reserved! */
}
#endif // (DEBUG_GPIO_ALLOC_MONITOR_ENABLED == 1)
}
void hw_gpio_set_pin_function(HW_GPIO_PORT port, HW_GPIO_PIN pin, HW_GPIO_MODE mode,
HW_GPIO_FUNC function)
{
hw_gpio_verify_reserved(port, pin);
PXX_MODE_REG(port, pin) = mode | function;
}
void hw_gpio_get_pin_function(HW_GPIO_PORT port, HW_GPIO_PIN pin, HW_GPIO_MODE *mode,
HW_GPIO_FUNC *function)
{
uint16_t val;
hw_gpio_verify_reserved(port, pin);
val = PXX_MODE_REG(port, pin);
*mode = val & 0x0700;
*function = val & 0x00ff;
}
void hw_gpio_configure_pin(HW_GPIO_PORT port, HW_GPIO_PIN pin, HW_GPIO_MODE mode,
HW_GPIO_FUNC function, const bool high)
{
hw_gpio_verify_reserved(port, pin);
if (high)
{
hw_gpio_set_active(port, pin);
}
else
{
hw_gpio_set_inactive(port, pin);
}
hw_gpio_set_pin_function(port, pin, mode, function);
}
void hw_gpio_configure_pin_power(HW_GPIO_PORT port, HW_GPIO_PIN pin, HW_GPIO_POWER power)
{
uint16_t padpwr;
padpwr = PX_PADPWR_CTRL_REG(port);
padpwr &= ~(1 << pin);
if (power == HW_GPIO_POWER_VDD1V8P)
{
padpwr |= (1 << pin);
}
PX_PADPWR_CTRL_REG(port) = padpwr;
}
void hw_gpio_set_active(HW_GPIO_PORT port, HW_GPIO_PIN pin)
{
hw_gpio_verify_reserved(port, pin);
PX_SET_DATA_REG(port) = 1 << pin;
#ifdef FPGA_PAD_LOOPBACK_BROKEN
Px_DATA_REG_cache[port] |= 1 << pin;
#endif
}
void hw_gpio_set_inactive(HW_GPIO_PORT port, HW_GPIO_PIN pin)
{
hw_gpio_verify_reserved(port, pin);
PX_RESET_DATA_REG(port) = 1 << pin;
#ifdef FPGA_PAD_LOOPBACK_BROKEN
Px_DATA_REG_cache[port] &= ~(1 << pin);
#endif
}
bool hw_gpio_get_pin_status(HW_GPIO_PORT port, HW_GPIO_PIN pin)
{
#ifdef FPGA_PAD_LOOPBACK_BROKEN
HW_GPIO_MODE mode;
HW_GPIO_FUNC function;
#endif
hw_gpio_verify_reserved(port, pin);
#ifdef FPGA_PAD_LOOPBACK_BROKEN
hw_gpio_get_pin_function(port, pin, &mode, &function);
if (mode != HW_GPIO_MODE_OUTPUT)
{
return !!(PX_DATA_REG(port) & (1 << pin));
}
else
{
return !!(Px_DATA_REG_cache[port] & (1 << pin));
}
#else
return ((PX_DATA_REG(port) & (1 << pin)) != 0);
#endif
}
void hw_gpio_toggle(HW_GPIO_PORT port, HW_GPIO_PIN pin)
{
hw_gpio_verify_reserved(port, pin);
if (hw_gpio_get_pin_status(port, pin))
{
hw_gpio_set_inactive(port, pin);
}
else
{
hw_gpio_set_active(port, pin);
}
}
int hw_gpio_get_pins_with_function(HW_GPIO_FUNC func, uint8_t *buf, int buf_size)
{
int count = 0;
int port;
int pin;
HW_GPIO_MODE mode;
HW_GPIO_FUNC pin_func;
for (port = 0; port < HW_GPIO_NUM_PORTS; ++port)
{
for (pin = 0; pin < hw_gpio_port_num_pins[port]; ++pin)
{
hw_gpio_get_pin_function(port, pin, &mode, &pin_func);
if (pin_func != func)
{
continue;
}
if (count < buf_size && buf != NULL)
{
buf[count] = (uint8_t)((port << 4) | pin);
}
count++;
}
}
return count;
}
#endif /* dg_configUSE_HW_GPIO */
/**
* \}
* \}
* \}
*/
|
the_stack_data/144991.c | /*
* Phoenix-RTOS
*
* libphoenix
*
* unistd
*
* Copyright 2018 Phoenix Systems
* Author: Kamil Amanowicz
*
* This file is part of Phoenix-RTOS.
*
* %LICENSE%
*/
#include <unistd.h>
char *getpass(const char *prompt)
{
return NULL;
}
|
the_stack_data/178265447.c | #include <stdio.h>
#include <stdlib.h>
int main(void)
{
const char *a = "A";
char * const b = "B";
char const * c = "C";
a = "A2";
// b = "B2"; // Build error
c = "C2";
// a[0] = 'X'; // Build error
b[0] = 'X';
// c[0] = 'X'; // Build error
return EXIT_FAILURE;
}
|
the_stack_data/45451034.c | /* plugin_test_7_1.c -- a test case for the plugin API with GC.
Copyright (C) 2010-2021 Free Software Foundation, Inc.
Written by Rafael Avila de Espindola <[email protected]>.
This file is part of gold.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
int fun1(void);
void fun2(void);
void fun2(void)
{
}
int main(void)
{
return fun1();
}
|
the_stack_data/70449919.c | #include <stdio.h>
#include <stdlib.h>
int nthUglyNumber(int n) {
if (n < 2) return 1;
int *nums = (int *)malloc(n * sizeof(int));
nums[0] = 1;
int i2 = 0, i3 = 0, i5 = 0; /* index of 2, 3, 5 respectively */
int k = 1; /* store index */
while (k < n) {
int min = 0;
if (nums[i2] * 2 <= nums[i3] * 3) {
min = nums[i2] * 2;
}
else {
min = nums[i3] * 3;
}
if (nums[i5] * 5 < min) {
min = nums[i5] * 5;
}
nums[k++] = min;
if (nums[i2] * 2 == min) i2++;
if (nums[i3] * 3 == min) i3++;
if (nums[i5] * 5 == min) i5++;
}
int ans = nums[n - 1];
free(nums);
return ans;
}
int main() {
int n = 10;
int i;
for (i = 1; i <= n; i++) {
printf("%d ", nthUglyNumber(i));
}
printf("\n");
return 0;
}
|
the_stack_data/90765553.c | // RUN: 3c -base-dir=%S -alltypes -addcr %s -- | FileCheck -match-full-lines -check-prefixes="CHECK_ALL","CHECK" %s
// RUN: 3c -base-dir=%S -addcr %s -- | FileCheck -match-full-lines -check-prefixes="CHECK_NOALL","CHECK" %s
// RUN: 3c -base-dir=%S -addcr %s -- | %clang -c -fcheckedc-extension -x c -o /dev/null -
/*
Regression test for the issue:
https://github.com/plum-umd/checkedc-clang/issues/239
Here, array bounds should be invalidated when conflicting bounds are assigned.
*/
#include <stdlib.h>
#include <string.h>
int foo() {
const char *invalstr = "%b %d %H:%M";
const char *valstr = "%b %d %H";
//CHECK_ALL: _Nt_array_ptr<const char> invalstr = "%b %d %H:%M";
//CHECK_NOALL: const char *invalstr = "%b %d %H:%M";
//CHECK_ALL: _Nt_array_ptr<const char> valstr : byte_count(8) = "%b %d %H";
//CHECK_NOALL: const char *valstr = "%b %d %H";
unsigned n, k;
char *arr1inval = malloc(n * sizeof(char));
//CHECK_ALL: _Array_ptr<char> arr1inval = malloc<char>(n * sizeof(char));
//CHECK_NOALL: char *arr1inval = malloc<char>(n * sizeof(char));
if (n > 0) {
//CHECK_ALL: if (n > 0) _Checked {
//CHECK_NOALL: if (n > 0) {
invalstr = "%b %d %H";
} else {
//CHECK_ALL: } else _Checked {
//CHECK_NOALL: } else {
valstr = "%b %d %M";
}
strlen(invalstr);
strlen(valstr);
if (n > 3) {
arr1inval = malloc(k * sizeof(char));
//CHECK: arr1inval = malloc<char>(k * sizeof(char));
}
arr1inval[0] = 'a';
return 0;
}
|
the_stack_data/48575650.c | #include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/resource.h>
#include <sys/wait.h>
#include <sys/types.h>
int main()
{
int status;
int pid;
if ((pid = fork()) < 0) {
perror("fork error");
return 0;
}
if (pid == 0) {
while (1) {};
}
else {
struct rusage resource_usage;
if (wait4(pid, &status, 0, &resource_usage) == -1) {
perror("wait4 error!");
}
}
return 0;
} |
the_stack_data/104483.c | #include <fenv.h>
#include <math.h>
float
truncf (float _x)
{
float retval;
unsigned short saved_cw;
unsigned short tmp_cw;
__asm__ ("fnstcw %0;" : "=m" (saved_cw)); /* save FPU control word */
tmp_cw = (saved_cw & ~(FE_TONEAREST | FE_DOWNWARD | FE_UPWARD | FE_TOWARDZERO))
| FE_TOWARDZERO;
__asm__ ("fldcw %0;" : : "m" (tmp_cw));
__asm__ ("frndint;" : "=t" (retval) : "0" (_x)); /* round towards zero */
__asm__ ("fldcw %0;" : : "m" (saved_cw) ); /* restore saved control word */
return retval;
}
|
the_stack_data/231393693.c | // PARAM: --set ana.int.interval true --enable exp.partition-arrays.enabled
#include<stdlib.h>
#include<assert.h>
int main(void) {
int *r = calloc(5,sizeof(int));
assert(r[0] == 0);
r[0] = 3;
assert(r[0] == 3); //UNKNOWN
int z = r[1];
assert(z == 0); //UNKNOWN
assert(z != 365);
} |
the_stack_data/1142158.c | #include <unistd.h>
#include <strings.h>
#include <string.h>
#include <stdio.h>
size_t ft_strlen(char *s);
_Bool fail = 0;
static void test1() {
// Assign
char t1[] = "Hello, world!";
// Assert
if (strlen(t1) != ft_strlen(t1)) {
fail = 1;
fprintf(stderr, "FAIL: ft_strlen test 1\n");
}
}
static void test2() {
// Assign
char t1[] = "Hello\0, world!";
// Assert
if (strlen(t1) != ft_strlen(t1)) {
fail = 1;
fprintf(stderr, "FAIL: ft_strlen test 2\n");
}
}
static void test3() {
// Assign
char t1[] = "";
// Assert
if (strlen(t1) != ft_strlen(t1)) {
fail = 1;
fprintf(stderr, "FAIL: ft_strlen test 3\n");
}
}
static void test4() {
// Assign
char *t1 = 0;
// Assert
if (0 != ft_strlen(t1)) {
fail = 1;
fprintf(stderr, "FAIL: ft_strlen test 4\n");
}
}
int main() {
test1();
test2();
test3();
test4();
if (!fail)
printf("PASS: ft_strlen\n");
return 0;
}
|
the_stack_data/29823928.c | #include <stdio.h>
int main(void){
printf("hello world!\n");
return 0;
}
|
the_stack_data/907566.c | #include <errno.h>
#include <stdio.h>
#include <unistd.h>
int makeargv(const char *s, const char *delimiters, char ***argvp);
int parseandredirectin(char *s);
int parseandredirectout(char *s);
void executecmd(char *incmd) {
char **chargv;
if (parseandredirectout(incmd) == -1)
perror("Failed to redirect output");
else if (parseandredirectin(incmd) == -1)
perror("Failed to redirect input");
else if (makeargv(incmd, " \t", &chargv) <= 0)
fprintf(stderr, "Failed to parse command line\n");
else {
execvp(chargv[0], chargv);
perror("Failed to execute command");
}
exit(1);
}
|
the_stack_data/97011475.c | #include <stdio.h>
#include <stdlib.h>
struct book
{
int book_id;
float price;
char title[50];
};
struct book input()
{
struct book b;
printf("Plz Enter Book ID, Title and Price\n");
scanf("%d",&b.book_id);
fflush(stdin);
gets(b.title);
scanf("%f",&b.price);
return (b);
} ;
void display( struct book b)
{
printf("%d %s %f\n",b.book_id,b.title,b.price);
}
void main()
{
struct book b1;
b1=input();
display(b1);
}
|
the_stack_data/34738.c | #include <stdio.h>
#include <stdlib.h>
#include <math.h>
int n = 1000000;
int *listPrimes(int num){
int i;
int *primes;
int *sieve = (int *) malloc(num * sizeof(int));
//initialize to all 1s (except 0 and 1 which are not prime)
for(i = 2; i < num; i++)
sieve[i] = 1;
for(i = 2; i < ceil(sqrt(num)); i++){
if(sieve[i] == 1){
int j = i * i;
while(j < num){
sieve[j] = 0;
j += i;
}
}
}
//now check which were prime
int s = 0;
primes = (int *) malloc(sizeof(int));
for(i = 2; i < num; i++){
if(sieve[i]){
primes[s] = i;
s++;
primes = (int *) realloc (primes, (s + 1) * sizeof(int));
}
}
return primes;
}
int main(){
int *p = listPrimes(n);
int prime10001 = p[10000];
printf("%d\n", prime10001);
return 0;
}
|
the_stack_data/159515793.c | // Exercise 5-10.
// Write the program expr, which evaluates a reverse Polish expression from the
// command line, where each operator or operand is a separate argument. For
// example,
// expr 2 3 4 + *
// evaluates 2 * (3+4).
#include <stdio.h>
int main()
{
fprintf(stderr, "not yet done\n");
return 1;
}
|
the_stack_data/294660.c | #include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <math.h>
#include <string.h>
struct spe_header{
int reclA; /* 24 */
char title[8];
int dim;
int a1; /* 1 */
int a2; /* 1 */
int a3; /* 1 */
int reclB; /* 24 */
};
/*write_spectrum
*
* saves the spectrum pointed to by "spec". Returns 0 if unsuccessful,
* 1 if successful.
* The name is truncated by removing any trailing .spe (and any
* subsequent characters...), as well as any leading directory names.
* If the resulting string is longer than the maximum allowed 8
* characters, only the first 8 are retained
*/
static int write_spectrum(float *spec, int nchs, char *name) {
FILE *fp;
int record_length;
struct spe_header header;
header.reclA = header.reclB = 24;
header.title[0] = header.title[1] = 0;
header.a1 = header.a2 = header.a3 = 1;
fp = fopen(name,"w");
if (fp == NULL){
fprintf(stderr,"Error! Unable to open spectrum file %s \n",name);
return 0;
}
header.dim = nchs;
memcpy(header.title, name, 8);
record_length = sizeof(float)*header.dim;
fwrite(&header, sizeof(header), 1, fp);
fwrite(&record_length, sizeof(record_length), 1, fp);
fwrite(spec, sizeof(float), nchs, fp);
fwrite(&record_length, sizeof(record_length), 1,fp);
fclose(fp);
return 1;
}
int main(int argc, char **argv) {
int i, nchs=0;
short s;
char fin[256], fout[256],line[120], *c;
float spec[16384];
int isp[16384] = {0};
float a[3] = {0};
FILE *fp;
if (argc < 2) {
printf("No file name provided...\n");
return 1;
}
strncpy(fin, argv[1], sizeof(fin));
if ((fp = fopen(fin, "r")) == NULL) {
printf("Cannot open input file %s\n", fin);
return 1;
}
// skip first 30 bytes of file (header)
fread(line, 30, 1, fp);
// read number of channels in spectrum
fread(&s, 2, 1, fp);
nchs = s;
if (nchs > 16384) nchs = 16384;
if (nchs < 4) {
printf("Cannot read input file %s\n", fin);
return 1;
}
/* read data */
fread(isp, 4, nchs, fp);
/* read calibration */
fseek(fp, 4*s+32, SEEK_SET);
fread(&s, 2, 1, fp);
if (s != -101 && s != -102) {
printf("Hmmm... cannot read cakibvration. s = %d\n", s);
s = 0;
} else {
fread(line, 2, 1, fp); // skip reserved bytes
fread(a, 4, 3, fp); // energy calibration coefficients
if (s == -101) a[2] = 0;
}
fclose(fp);
printf("%i channels...\n", nchs);
if (nchs < 4) {
printf("Cannot read input file %s\n", fin);
return 1;
}
/* write .spe file */
for (i=0; i<nchs; i++) spec[i] = isp[i];
strncpy(fout, fin, sizeof(fout));
if ((c = strstr(fout, ".CHN")) == NULL &&
(c = strstr(fout, ".Chn")) == NULL &&
(c = strstr(fout, ".chn")) == NULL) c = fout + strlen(fout);
strncpy(c, ".spe", 4);
write_spectrum(spec, nchs, fout);
printf(" %s ==> %s\n", fin, fout);
/* write .aca file */
if (s) {
if (s == -102 && a[2] == 0.0) s = -101;
strncpy(c, ".aca", 4);
if ((fp = fopen(fout, "w")) == NULL) return 1;
fprintf(fp, " ENCAL OUTPUT FILE\n From %s\n", fin);
fprintf(fp, "%5d %18.11E %18.11E %18.11E\n"
" %18.11E %18.11E %18.11E\n", -100 - s,
a[0], a[1], a[2], 0.0, 0.0, 0.0);
fclose(fp);
printf(" ...Calibration file %s created. %d terms\n", fout, -99 - s);
fclose(fp);
}
return 0;
}
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