text: /*
   * Copyright (c) 2003-2017 Lev Walkin <vlm@lionet.info>. All rights reserved.
   * Redistribution and modifications are permitted subject to BSD license.
   */
  /*
   * Miscellaneous system-dependent types.
   */
  #ifndef	ASN_SYSTEM_H
  #define	ASN_SYSTEM_H
  
  #ifdef	HAVE_CONFIG_H
  #include "config.h"
  #endif
  
  #ifndef _DEFAULT_SOURCE
  #define _DEFAULT_SOURCE 1
  #endif
  
  #ifndef _BSD_SOURCE
  #define _BSD_SOURCE /* for snprintf() on some linux systems  */
  #endif
  
  #include <stdio.h>	/* For snprintf(3) */
  #include <stdlib.h>	/* For *alloc(3) */
  #include <string.h>	/* For memcpy(3) */
  #include <sys/types.h>	/* For size_t */
  #include <limits.h>	/* For LONG_MAX */
  #include <stdarg.h>	/* For va_start */
  #include <stddef.h>	/* for offsetof and ptrdiff_t */
  #include <inttypes.h>	/* for PRIdMAX */
  
  #ifdef	_WIN32
  
  #include <malloc.h>
  #ifndef __MINGW32__
  #define	 snprintf	_snprintf
  #define	 vsnprintf	_vsnprintf
  #endif
  
  /* To avoid linking with ws2_32.lib, here's the definition of ntohl() */
  #define sys_ntohl(l)	((((l) << 24)  & 0xff000000)	\
  			| (((l) << 8) & 0xff0000)	\
  			| (((l) >> 8)  & 0xff00)	\
  			| ((l >> 24) & 0xff))
  
  #ifdef _MSC_VER			/* MSVS.Net */
  #ifndef __cplusplus
  #define inline __inline
  #endif
  #ifndef	ASSUMESTDTYPES	/* Standard types have been defined elsewhere */
  #define	ssize_t		SSIZE_T
  #if _MSC_VER < 1600
  typedef	char		int8_t;
  typedef	short		int16_t;
  typedef	int		int32_t;
  typedef	unsigned char	uint8_t;
  typedef	unsigned short	uint16_t;
  typedef	unsigned int	uint32_t;
  #else /* _MSC_VER >= 1600 */
  #include <stdint.h>
  #endif /* _MSC_VER < 1600 */
  #endif	/* ASSUMESTDTYPES */
  #define WIN32_LEAN_AND_MEAN
  #include <windows.h>
  #include <float.h>
  #define isnan _isnan
  #define finite _finite
  #define copysign _copysign
  #define	ilogb	_logb
  #else	/* !_MSC_VER */
  #include <stdint.h>
  #endif	/* _MSC_VER */
  
  #else	/* !_WIN32 */
  
  #if defined(__vxworks)
  #include <types/vxTypes.h>
  #else	/* !defined(__vxworks) */
  
  #include <inttypes.h>	/* C99 specifies this file */
  #ifdef HAVE_NETINET_IN_H
  #include <netinet/in.h> /* for ntohl() */
  #endif
  #define	sys_ntohl(foo)	ntohl(foo)
  #endif	/* defined(__vxworks) */
  
  #endif	/* _WIN32 */
  
  #if	__GNUC__ >= 3 || defined(__clang__)
  #define CC_ATTRIBUTE(attr)    __attribute__((attr))
  #else
  #define CC_ATTRIBUTE(attr)
  #endif
  #if defined(__GNUC__) && ((__GNUC__ == 4 && __GNUC_MINOR__>= 4) || __GNUC__ > 4)
  #define CC_PRINTFLIKE(fmt, var) CC_ATTRIBUTE(format(gnu_printf, fmt, var))
  #elif defined(__GNUC__)
  #if defined(ANDROID)
  #define CC_PRINTFLIKE(fmt, var) CC_ATTRIBUTE(__format__(__printf__, fmt, var))
  #else
  #define CC_PRINTFLIKE(fmt, var) CC_ATTRIBUTE(format(printf, fmt, var))
  #endif
  #else
  #define CC_PRINTFLIKE(fmt, var)
  #endif
  #define	CC_NOTUSED                  CC_ATTRIBUTE(unused)
  #ifndef CC_ATTR_NO_SANITIZE
  #if	__GNUC__ < 8
  #define CC_ATTR_NO_SANITIZE(what)
  #else
  #define CC_ATTR_NO_SANITIZE(what)   CC_ATTRIBUTE(no_sanitize(what))
  #endif
  #endif
  
  /* Figure out if thread safety is requested */
  #if !defined(ASN_THREAD_SAFE) && (defined(THREAD_SAFE) || defined(_REENTRANT))
  #define	ASN_THREAD_SAFE
  #endif	/* Thread safety */
  
  #ifndef	offsetof	/* If not defined by <stddef.h> */
  #define	offsetof(s, m)	((ptrdiff_t)&(((s *)0)->m) - (ptrdiff_t)((s *)0))
  #endif	/* offsetof */
  
  #ifndef	MIN		/* Suitable for comparing primitive types (integers) */
  #if defined(__GNUC__)
  #define	MIN(a,b)	({ __typeof a _a = a; __typeof b _b = b;	\
  	((_a)<(_b)?(_a):(_b)); })
  #else	/* !__GNUC__ */
  #define	MIN(a,b)	((a)<(b)?(a):(b))	/* Unsafe variant */
  #endif /* __GNUC__ */
  #endif	/* MIN */
  
  #if __STDC_VERSION__ >= 199901L
  #ifndef SIZE_MAX
  #define SIZE_MAX   ((~((size_t)0)) >> 1)
  #endif
  
  #ifndef RSIZE_MAX   /* C11, Annex K */
  #define RSIZE_MAX   (SIZE_MAX >> 1)
  #endif
  #ifndef RSSIZE_MAX   /* Halve signed size even further than unsigned */
  #define RSSIZE_MAX   ((ssize_t)(RSIZE_MAX >> 1))
  #endif
  #else   /* Old compiler */
  #undef  SIZE_MAX
  #undef  RSIZE_MAX
  #undef  RSSIZE_MAX
  #define SIZE_MAX   ((~((size_t)0)) >> 1)
  #define RSIZE_MAX   (SIZE_MAX >> 1)
  #define RSSIZE_MAX   ((ssize_t)(RSIZE_MAX >> 1))
  #endif
  
  #if __STDC_VERSION__ >= 199901L
  #define ASN_PRI_SIZE "zu"
  #define ASN_PRI_SSIZE "zd"
  #define ASN_PRIuMAX PRIuMAX
  #define ASN_PRIdMAX PRIdMAX
  #else
  #define ASN_PRI_SIZE "lu"
  #define ASN_PRI_SSIZE "ld"
  #if LLONG_MAX > LONG_MAX
  #define ASN_PRIuMAX "llu"
  #define ASN_PRIdMAX "lld"
  #else
  #define ASN_PRIuMAX "lu"
  #define ASN_PRIdMAX "ld"
  #endif
  #endif
  
  #endif	/* ASN_SYSTEM_H */
  