genrand.h
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/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
A C-program for MT19937, with initialization improved 2002/1/26.
Coded by Takuji Nishimura and Makoto Matsumoto.
Before using, initialize the state by using init_genrand(seed)
or init_by_array(init_key, key_length).
Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura,
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. The names of its contributors may not be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
Any feedback is very welcome.
http://www.math.keio.ac.jp/matumoto/emt.html
email: matumoto@math.keio.ac.jp
*/
/* ====================================================================
* Copyright (c) 1999-2004 Carnegie Mellon University. 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.
*
* This work was supported in part by funding from the Defense Advanced
* Research Projects Agency and the National Science Foundation of the
* United States of America, and the CMU Sphinx Speech Consortium.
*
* THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
* ANY EXPRESSED 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 CARNEGIE MELLON UNIVERSITY
* NOR ITS EMPLOYEES 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.
*
* ====================================================================
*
*/
/*
* randgen.c : a portable random generator
*
*
* **********************************************
* CMU ARPA Speech Project
*
* Copyright (c) 1999 Carnegie Mellon University.
* ALL RIGHTS RESERVED.
* **********************************************
*
* HISTORY
* $Log: genrand.h,v $
* Revision 1.3 2005/06/22 03:01:50 arthchan2003
* Added keyword
*
* Revision 1.3 2005/03/30 01:22:48 archan
* Fixed mistakes in last updates. Add
*
*
* 18-Nov-04 ARCHAN (archan@cs.cmu.edu) at Carnegie Mellon University
* First incorporated from the Mersenne Twister Random
* Number Generator package. It was chosen because it is
* in BSD-license and its performance is quite
* reasonable. Of course if you look at the inventors's
* page. This random generator can actually gives
* 19937-bits period. This is already far from we need.
* This will possibly good enough for the next 10 years.
*
* I also downgrade the code a little bit to avoid Sphinx's
* developers misused it.
*/
#ifndef _LIBUTIL_GENRAND_H_
#define _LIBUTIL_GENRAND_H_
#define S3_RAND_MAX_INT32 0x7fffffff
#include <stdio.h>
/* Win32/WinCE DLL gunk */
#include <sphinxbase/sphinxbase_export.h>
#ifdef __cplusplus
extern "C" {
#endif
#if 0
/* Fool Emacs. */
}
#endif
#define s3_rand_seed(s) genrand_seed(s);
#define s3_rand_int31() genrand_int31()
#define s3_rand_real() genrand_real3()
#define s3_rand_res53() genrand_res53()
SPHINXBASE_EXPORT
void genrand_seed(unsigned long s);
SPHINXBASE_EXPORT
long genrand_int31(void);
SPHINXBASE_EXPORT
double genrand_real3(void);
SPHINXBASE_EXPORT
double genrand_res53(void);
#ifdef __cplusplus
}
#endif
#endif /*_LIBUTIL_GENRAND_H_*/
genrand_res53
SPHINXBASE_EXPORT double genrand_res53(void)
generates a random number on [0,1) with 53-bit resolution
Definition: genrand.c:228
genrand_int31
SPHINXBASE_EXPORT long genrand_int31(void)
generates a random number on [0,0x7fffffff]-interval
Definition: genrand.c:197
genrand_real3
SPHINXBASE_EXPORT double genrand_real3(void)
generates a random number on (0,1)-real-interval
Definition: genrand.c:220
genrand_seed
SPHINXBASE_EXPORT void genrand_seed(unsigned long s)
Initialize the seed of the random generator.
Definition: genrand.c:130