text: /*
     +----------------------------------------------------------------------+
     | PHP Version 7                                                        |
     +----------------------------------------------------------------------+
     | Copyright (c) 1997-2016 The PHP Group                                |
     +----------------------------------------------------------------------+
     | This source file is subject to version 3.01 of the PHP license,      |
     | that is bundled with this package in the file LICENSE, and is        |
     | available through the world-wide-web at the following url:           |
     | http://www.php.net/license/3_01.txt                                  |
     | If you did not receive a copy of the PHP license and are unable to   |
     | obtain it through the world-wide-web, please send a note to          |
     | license@php.net so we can mail you a copy immediately.               |
     +----------------------------------------------------------------------+
     | Authors: Rasmus Lerdorf <rasmus@php.net>                             |
     |          Zeev Suraski <zeev@zend.com>                                |
     |          Pedro Melo <melo@ip.pt>                                     |
     |          Sterling Hughes <sterling@php.net>                          |
     |                                                                      |
     | Based on code from: Shawn Cokus <Cokus@math.washington.edu>          |
     +----------------------------------------------------------------------+
   */
  /* $Id$ */
  
  #ifndef PHP_RAND_H
  #define	PHP_RAND_H
  
  #include <stdlib.h>
  #include "basic_functions.h"
  #include "php_lcg.h"
  
  /* System Rand functions */
  #ifndef RAND_MAX
  #define RAND_MAX (1<<15)
  #endif
  
  /* In ZTS mode we rely on rand_r() so we must use RAND_MAX. */
  #if !defined(ZTS) && (defined(HAVE_LRAND48) || defined(HAVE_RANDOM))
  #define PHP_RAND_MAX 2147483647
  #else
  #define PHP_RAND_MAX RAND_MAX
  #endif
  
  #define RAND_RANGE(__n, __min, __max, __tmax) \
      (__n) = (__min) + (zend_long) ((double) ( (double) (__max) - (__min) + 1.0) * ((__n) / ((__tmax) + 1.0)))
  
  /* MT Rand */
  #define PHP_MT_RAND_MAX ((zend_long) (0x7FFFFFFF)) /* (1<<31) - 1 */
  
  #ifdef PHP_WIN32
  #define GENERATE_SEED() (((zend_long) (time(0) * GetCurrentProcessId())) ^ ((zend_long) (1000000.0 * php_combined_lcg())))
  #else
  #define GENERATE_SEED() (((zend_long) (time(0) * getpid())) ^ ((zend_long) (1000000.0 * php_combined_lcg())))
  #endif
  
  PHPAPI void php_srand(zend_long seed);
  PHPAPI zend_long php_rand(void);
  PHPAPI void php_mt_srand(php_uint32 seed);
  PHPAPI php_uint32 php_mt_rand(void);
  
  #endif	/* PHP_RAND_H */
  