random_8h_source.html

/*

 * SPDX-FileCopyrightText: 2013 Freie Universität Berlin

 * SPDX-License-Identifier: LGPL-2.1-only

 */


#pragma once


#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


random_init
void random_init(uint32_t s)
initializes PRNG with a seed

random_real_inclusive
double random_real_inclusive(void)
generates a random number on [0,1]-real-interval

random_init_by_array
void random_init_by_array(uint32_t init_key[], int key_length)
initialize by an array with array-length init_key is the array for initializing keys key_length is it...

random_res53
double random_res53(void)
generates a random number on [0,1) with 53-bit resolution

random_bytes
void random_bytes(void *buf, size_t size)
writes random bytes in the [0,0xff]-interval to memory

random_uint32_range
uint32_t random_uint32_range(uint32_t a, uint32_t b)
generates a random number r with a <= r < b.

random_uint32
uint32_t random_uint32(void)
generates a random number on [0,0xffffffff]-interval

random_real
double random_real(void)
generates a random number on [0,1)-real-interval

random_real_exclusive
double random_real_exclusive(void)
generates a random number on (0,1)-real-interval

inttypes.h
Adds include for missing inttype definitions.