random.h

Go to the documentation of this file.

/*
 * Copyright (C) 2013 Freie Universität Berlin
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#ifndef RANDOM_H
#define RANDOM_H
 
#include <inttypes.h>
#include <stddef.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
#ifndef RANDOM_SEED_DEFAULT
#define RANDOM_SEED_DEFAULT (1)
#endif
 
#ifndef PRNG_FLOAT
#  define PRNG_FLOAT (0)
#endif
 
void random_init(uint32_t s);
 
void random_init_by_array(uint32_t init_key[], int key_length);
 
uint32_t random_uint32(void);
 
void random_bytes(void *buf, size_t size);
 
uint32_t random_uint32_range(uint32_t a, uint32_t b);
 
#if PRNG_FLOAT || defined(DOXYGEN)
/* These real versions are due to Isaku Wada, 2002/01/09 added */
 
double random_real(void);
 
double random_real_inclusive(void);
 
double random_real_exclusive(void);
 
double random_res53(void);
 
#endif /* PRNG_FLOAT */
 
#ifdef __cplusplus
}
#endif
 
#endif /* RANDOM_H */