rand.h revision 154e1d5579ca6c8bee571a8d1ced5d76a0234030
/** @file
* innotek Portable Runtime - Random Numbers and Byte Streams.
*/
/*
* Copyright (C) 2006-2007 innotek GmbH
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file 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,
* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
* distribution. VirtualBox OSE is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY of any kind.
*
* If you received this file as part of a commercial VirtualBox
* distribution, then only the terms of your commercial VirtualBox
* license agreement apply instead of the previous paragraph.
*/
#ifndef ___iprt_rand_h
#define ___iprt_rand_h
#include <iprt/cdefs.h>
#include <iprt/types.h>
__BEGIN_DECLS
/** @defgroup grp_rt_rand RTRand - Random Numbers and Byte Streams
* @ingroup grp_rt
* @{
*/
/**
* Fills a buffer with random bytes.
*
* @param pv Where to store the random bytes.
* @param cb Number of bytes to generate.
*/
RTDECL(void) RTRandBytes(void *pv, size_t cb);
/**
* Generate a 32-bit signed random number in the set [i32First..i32Last].
*
* @returns The random number.
* @param i32First First number in the set.
* @param i32Last Last number in the set.
*/
RTDECL(int32_t) RTRandS32Ex(int32_t i32First, int32_t i32Last);
/**
* Generate a 32-bit signed random number.
*
* @returns The random number.
*/
RTDECL(int32_t) RTRandS32(void);
/**
* Generate a 32-bit unsigned random number in the set [u32First..u32Last].
*
* @returns The random number.
* @param u32First First number in the set.
* @param u32Last Last number in the set.
*/
RTDECL(uint32_t) RTRandU32Ex(uint32_t u32First, uint32_t u32Last);
/**
* Generate a 32-bit unsigned random number.
*
* @returns The random number.
*/
RTDECL(uint32_t) RTRandU32(void);
/**
* Generate a 32-bit signed random number in the set [i32First..i32Last].
*
* @returns The random number.
* @param i32First First number in the set.
* @param i32Last Last number in the set.
*/
RTDECL(int64_t) RTRandS64Ex(int64_t i64First, int64_t i64Last);
/**
* Generate a 64-bit signed random number.
*
* @returns The random number.
*/
RTDECL(int64_t) RTRandS64(void);
/**
* Generate a 64-bit unsigned random number in the set [u64First..u64Last].
*
* @returns The random number.
* @param u64First First number in the set.
* @param u64Last Last number in the set.
*/
RTDECL(uint64_t) RTRandU64Ex(uint64_t u64First, uint64_t u64Last);
/**
* Generate a 64-bit unsigned random number.
*
* @returns The random number.
*/
RTDECL(uint64_t) RTRandU64(void);
/** @} */
__END_DECLS
#endif