mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-12-24 07:29:42 +00:00
62 lines
2.2 KiB
C
62 lines
2.2 KiB
C
/*
|
|
* Copyright (c) 2005, Swedish Institute of Computer Science
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* This file is part of the Contiki operating system.
|
|
*
|
|
* @(#)$Id: rand.h,v 1.5 2009/02/11 11:09:59 adamdunkels Exp $
|
|
*/
|
|
/* -*- C -*- */
|
|
/* @(#)$Id: rand.h,v 1.5 2009/02/11 11:09:59 adamdunkels Exp $ */
|
|
|
|
#ifndef RAND_H
|
|
#define RAND_H
|
|
|
|
#include "sys/cc.h"
|
|
|
|
#undef RAND_MAX
|
|
#define RAND_MAX 0x7fff
|
|
|
|
/*
|
|
* Minimal standard random number generator.
|
|
*
|
|
* Simple crappy ANSI C compatible random number generator that is
|
|
* good enough for us!
|
|
*
|
|
* Park, S.K. and K.W. Miller, 1988;
|
|
* Random Number Generators: Good Ones are Hard to Find,
|
|
* Comm. of the ACM, V. 31. No. 10, pp 1192-1201
|
|
*/
|
|
|
|
extern int32_t rand_state;
|
|
|
|
int rand(void);
|
|
|
|
void srand(unsigned int);
|
|
|
|
#endif /* RAND_H */
|