SphinxBase  5prealpha
genrand.h
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1 /* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 /*
3  A C-program for MT19937, with initialization improved 2002/1/26.
4  Coded by Takuji Nishimura and Makoto Matsumoto.
5 
6  Before using, initialize the state by using init_genrand(seed)
7  or init_by_array(init_key, key_length).
8 
9  Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura,
10  All rights reserved.
11 
12  Redistribution and use in source and binary forms, with or without
13  modification, are permitted provided that the following conditions
14  are met:
15 
16  1. Redistributions of source code must retain the above copyright
17  notice, this list of conditions and the following disclaimer.
18 
19  2. Redistributions in binary form must reproduce the above copyright
20 ` notice, this list of conditions and the following disclaimer in the
21  documentation and/or other materials provided with the distribution.
22 
23  3. The names of its contributors may not be used to endorse or promote
24  products derived from this software without specific prior written
25  permission.
26 
27  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
30  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
31  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
32  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
33  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
34  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
35  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
36  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
37  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
38 
39 
40  Any feedback is very welcome.
41  http://www.math.keio.ac.jp/matumoto/emt.html
42  email: matumoto@math.keio.ac.jp
43 */
44 
45 /* ====================================================================
46  * Copyright (c) 1999-2004 Carnegie Mellon University. All rights
47  * reserved.
48  *
49  * Redistribution and use in source and binary forms, with or without
50  * modification, are permitted provided that the following conditions
51  * are met:
52  *
53  * 1. Redistributions of source code must retain the above copyright
54  * notice, this list of conditions and the following disclaimer.
55  *
56  * 2. Redistributions in binary form must reproduce the above copyright
57  * notice, this list of conditions and the following disclaimer in
58  * the documentation and/or other materials provided with the
59  * distribution.
60  *
61  * This work was supported in part by funding from the Defense Advanced
62  * Research Projects Agency and the National Science Foundation of the
63  * United States of America, and the CMU Sphinx Speech Consortium.
64  *
65  * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND
66  * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
67  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
68  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY
69  * NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
70  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
71  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
72  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
73  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
74  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
75  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
76  *
77  * ====================================================================
78  *
79  */
80 
81 /*
82  * randgen.c : a portable random generator
83  *
84  *
85  * **********************************************
86  * CMU ARPA Speech Project
87  *
88  * Copyright (c) 1999 Carnegie Mellon University.
89  * ALL RIGHTS RESERVED.
90  * **********************************************
91  *
92  * HISTORY
93  * $Log: genrand.h,v $
94  * Revision 1.3 2005/06/22 03:01:50 arthchan2003
95  * Added keyword
96  *
97  * Revision 1.3 2005/03/30 01:22:48 archan
98  * Fixed mistakes in last updates. Add
99  *
100  *
101  * 18-Nov-04 ARCHAN (archan@cs.cmu.edu) at Carnegie Mellon University
102  * First incorporated from the Mersenne Twister Random
103  * Number Generator package. It was chosen because it is
104  * in BSD-license and its performance is quite
105  * reasonable. Of course if you look at the inventors's
106  * page. This random generator can actually gives
107  * 19937-bits period. This is already far from we need.
108  * This will possibly good enough for the next 10 years.
109  *
110  * I also downgrade the code a little bit to avoid Sphinx's
111  * developers misused it.
112  */
113 
114 #ifndef _LIBUTIL_GENRAND_H_
115 #define _LIBUTIL_GENRAND_H_
116 
117 #define S3_RAND_MAX_INT32 0x7fffffff
118 #include <stdio.h>
119 
120 /* Win32/WinCE DLL gunk */
121 #include <sphinxbase/sphinxbase_export.h>
122 
132 #ifdef __cplusplus
133 extern "C" {
134 #endif
135 #if 0
136 /* Fool Emacs. */
137 }
138 #endif
139 
144 #define s3_rand_seed(s) genrand_seed(s);
145 #define s3_rand_int31() genrand_int31()
146 #define s3_rand_real() genrand_real3()
147 #define s3_rand_res53() genrand_res53()
148 
152 SPHINXBASE_EXPORT
153 void genrand_seed(unsigned long s);
154 
158 SPHINXBASE_EXPORT
159 long genrand_int31(void);
160 
164 SPHINXBASE_EXPORT
165 double genrand_real3(void);
166 
170 SPHINXBASE_EXPORT
171 double genrand_res53(void);
172 
173 #ifdef __cplusplus
174 }
175 #endif
176 
177 #endif /*_LIBUTIL_GENRAND_H_*/
SPHINXBASE_EXPORT double genrand_res53(void)
generates a random number on [0,1) with 53-bit resolution
Definition: genrand.c:192
SPHINXBASE_EXPORT long genrand_int31(void)
generates a random number on [0,0x7fffffff]-interval
Definition: genrand.c:161
SPHINXBASE_EXPORT double genrand_real3(void)
generates a random number on (0,1)-real-interval
Definition: genrand.c:184
SPHINXBASE_EXPORT void genrand_seed(unsigned long s)
Initialize the seed of the random generator.
Definition: genrand.c:94