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<h1>include/sphinxbase/genrand.h</h1> </div>
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<a href="genrand_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */</span>
<a name="l00002"></a>00002 <span class="comment">/* </span>
<a name="l00003"></a>00003 <span class="comment"> A C-program for MT19937, with initialization improved 2002/1/26.</span>
<a name="l00004"></a>00004 <span class="comment"> Coded by Takuji Nishimura and Makoto Matsumoto.</span>
<a name="l00005"></a>00005 <span class="comment"></span>
<a name="l00006"></a>00006 <span class="comment"> Before using, initialize the state by using init_genrand(seed) </span>
<a name="l00007"></a>00007 <span class="comment"> or init_by_array(init_key, key_length).</span>
<a name="l00008"></a>00008 <span class="comment"></span>
<a name="l00009"></a>00009 <span class="comment"> Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura,</span>
<a name="l00010"></a>00010 <span class="comment"> All rights reserved. </span>
<a name="l00011"></a>00011 <span class="comment"></span>
<a name="l00012"></a>00012 <span class="comment"> Redistribution and use in source and binary forms, with or without</span>
<a name="l00013"></a>00013 <span class="comment"> modification, are permitted provided that the following conditions</span>
<a name="l00014"></a>00014 <span class="comment"> are met:</span>
<a name="l00015"></a>00015 <span class="comment"></span>
<a name="l00016"></a>00016 <span class="comment"> 1. Redistributions of source code must retain the above copyright</span>
<a name="l00017"></a>00017 <span class="comment"> notice, this list of conditions and the following disclaimer.</span>
<a name="l00018"></a>00018 <span class="comment"></span>
<a name="l00019"></a>00019 <span class="comment"> 2. Redistributions in binary form must reproduce the above copyright</span>
<a name="l00020"></a>00020 <span class="comment">` notice, this list of conditions and the following disclaimer in the</span>
<a name="l00021"></a>00021 <span class="comment"> documentation and/or other materials provided with the distribution.</span>
<a name="l00022"></a>00022 <span class="comment"></span>
<a name="l00023"></a>00023 <span class="comment"> 3. The names of its contributors may not be used to endorse or promote </span>
<a name="l00024"></a>00024 <span class="comment"> products derived from this software without specific prior written </span>
<a name="l00025"></a>00025 <span class="comment"> permission.</span>
<a name="l00026"></a>00026 <span class="comment"></span>
<a name="l00027"></a>00027 <span class="comment"> THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS</span>
<a name="l00028"></a>00028 <span class="comment"> "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT</span>
<a name="l00029"></a>00029 <span class="comment"> LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR</span>
<a name="l00030"></a>00030 <span class="comment"> A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR</span>
<a name="l00031"></a>00031 <span class="comment"> CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,</span>
<a name="l00032"></a>00032 <span class="comment"> EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,</span>
<a name="l00033"></a>00033 <span class="comment"> PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR</span>
<a name="l00034"></a>00034 <span class="comment"> PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF</span>
<a name="l00035"></a>00035 <span class="comment"> LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING</span>
<a name="l00036"></a>00036 <span class="comment"> NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS</span>
<a name="l00037"></a>00037 <span class="comment"> SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00038"></a>00038 <span class="comment"></span>
<a name="l00039"></a>00039 <span class="comment"></span>
<a name="l00040"></a>00040 <span class="comment"> Any feedback is very welcome.</span>
<a name="l00041"></a>00041 <span class="comment"> http://www.math.keio.ac.jp/matumoto/emt.html</span>
<a name="l00042"></a>00042 <span class="comment"> email: matumoto@math.keio.ac.jp</span>
<a name="l00043"></a>00043 <span class="comment">*/</span>
<a name="l00044"></a>00044
<a name="l00045"></a>00045 <span class="comment">/* ====================================================================</span>
<a name="l00046"></a>00046 <span class="comment"> * Copyright (c) 1999-2004 Carnegie Mellon University. All rights</span>
<a name="l00047"></a>00047 <span class="comment"> * reserved.</span>
<a name="l00048"></a>00048 <span class="comment"> *</span>
<a name="l00049"></a>00049 <span class="comment"> * Redistribution and use in source and binary forms, with or without</span>
<a name="l00050"></a>00050 <span class="comment"> * modification, are permitted provided that the following conditions</span>
<a name="l00051"></a>00051 <span class="comment"> * are met:</span>
<a name="l00052"></a>00052 <span class="comment"> *</span>
<a name="l00053"></a>00053 <span class="comment"> * 1. Redistributions of source code must retain the above copyright</span>
<a name="l00054"></a>00054 <span class="comment"> * notice, this list of conditions and the following disclaimer. </span>
<a name="l00055"></a>00055 <span class="comment"> *</span>
<a name="l00056"></a>00056 <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright</span>
<a name="l00057"></a>00057 <span class="comment"> * notice, this list of conditions and the following disclaimer in</span>
<a name="l00058"></a>00058 <span class="comment"> * the documentation and/or other materials provided with the</span>
<a name="l00059"></a>00059 <span class="comment"> * distribution.</span>
<a name="l00060"></a>00060 <span class="comment"> *</span>
<a name="l00061"></a>00061 <span class="comment"> * This work was supported in part by funding from the Defense Advanced </span>
<a name="l00062"></a>00062 <span class="comment"> * Research Projects Agency and the National Science Foundation of the </span>
<a name="l00063"></a>00063 <span class="comment"> * United States of America, and the CMU Sphinx Speech Consortium.</span>
<a name="l00064"></a>00064 <span class="comment"> *</span>
<a name="l00065"></a>00065 <span class="comment"> * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND </span>
<a name="l00066"></a>00066 <span class="comment"> * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, </span>
<a name="l00067"></a>00067 <span class="comment"> * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR</span>
<a name="l00068"></a>00068 <span class="comment"> * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY</span>
<a name="l00069"></a>00069 <span class="comment"> * NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span>
<a name="l00070"></a>00070 <span class="comment"> * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT </span>
<a name="l00071"></a>00071 <span class="comment"> * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, </span>
<a name="l00072"></a>00072 <span class="comment"> * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY </span>
<a name="l00073"></a>00073 <span class="comment"> * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT </span>
<a name="l00074"></a>00074 <span class="comment"> * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE </span>
<a name="l00075"></a>00075 <span class="comment"> * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00076"></a>00076 <span class="comment"> *</span>
<a name="l00077"></a>00077 <span class="comment"> * ====================================================================</span>
<a name="l00078"></a>00078 <span class="comment"> *</span>
<a name="l00079"></a>00079 <span class="comment"> */</span>
<a name="l00080"></a>00080
<a name="l00081"></a>00081 <span class="comment">/*</span>
<a name="l00082"></a>00082 <span class="comment"> * randgen.c : a portable random generator </span>
<a name="l00083"></a>00083 <span class="comment"> * </span>
<a name="l00084"></a>00084 <span class="comment"> *</span>
<a name="l00085"></a>00085 <span class="comment"> * **********************************************</span>
<a name="l00086"></a>00086 <span class="comment"> * CMU ARPA Speech Project</span>
<a name="l00087"></a>00087 <span class="comment"> *</span>
<a name="l00088"></a>00088 <span class="comment"> * Copyright (c) 1999 Carnegie Mellon University.</span>
<a name="l00089"></a>00089 <span class="comment"> * ALL RIGHTS RESERVED.</span>
<a name="l00090"></a>00090 <span class="comment"> * **********************************************</span>
<a name="l00091"></a>00091 <span class="comment"> * </span>
<a name="l00092"></a>00092 <span class="comment"> * HISTORY</span>
<a name="l00093"></a>00093 <span class="comment"> * $Log: genrand.h,v $</span>
<a name="l00094"></a>00094 <span class="comment"> * Revision 1.3 2005/06/22 03:01:50 arthchan2003</span>
<a name="l00095"></a>00095 <span class="comment"> * Added keyword</span>
<a name="l00096"></a>00096 <span class="comment"> *</span>
<a name="l00097"></a>00097 <span class="comment"> * Revision 1.3 2005/03/30 01:22:48 archan</span>
<a name="l00098"></a>00098 <span class="comment"> * Fixed mistakes in last updates. Add</span>
<a name="l00099"></a>00099 <span class="comment"> *</span>
<a name="l00100"></a>00100 <span class="comment"> * </span>
<a name="l00101"></a>00101 <span class="comment"> * 18-Nov-04 ARCHAN (archan@cs.cmu.edu) at Carnegie Mellon University</span>
<a name="l00102"></a>00102 <span class="comment"> * First incorporated from the Mersenne Twister Random</span>
<a name="l00103"></a>00103 <span class="comment"> * Number Generator package. It was chosen because it is</span>
<a name="l00104"></a>00104 <span class="comment"> * in BSD-license and its performance is quite</span>
<a name="l00105"></a>00105 <span class="comment"> * reasonable. Of course if you look at the inventors's</span>
<a name="l00106"></a>00106 <span class="comment"> * page. This random generator can actually gives</span>
<a name="l00107"></a>00107 <span class="comment"> * 19937-bits period. This is already far from we need. </span>
<a name="l00108"></a>00108 <span class="comment"> * This will possibly good enough for the next 10 years. </span>
<a name="l00109"></a>00109 <span class="comment"> *</span>
<a name="l00110"></a>00110 <span class="comment"> * I also downgrade the code a little bit to avoid Sphinx's</span>
<a name="l00111"></a>00111 <span class="comment"> * developers misused it. </span>
<a name="l00112"></a>00112 <span class="comment"> */</span>
<a name="l00113"></a>00113
<a name="l00114"></a>00114 <span class="preprocessor">#ifndef _LIBUTIL_GENRAND_H_</span>
<a name="l00115"></a>00115 <span class="preprocessor"></span><span class="preprocessor">#define _LIBUTIL_GENRAND_H_</span>
<a name="l00116"></a>00116 <span class="preprocessor"></span>
<a name="l00117"></a>00117 <span class="preprocessor">#define S3_RAND_MAX_INT32 0x7fffffff</span>
<a name="l00118"></a>00118 <span class="preprocessor"></span><span class="preprocessor">#include <stdio.h></span>
<a name="l00119"></a>00119
<a name="l00120"></a>00120 <span class="comment">/* Win32/WinCE DLL gunk */</span>
<a name="l00121"></a>00121 <span class="preprocessor">#include <sphinxbase/sphinxbase_export.h></span>
<a name="l00122"></a>00122
<a name="l00132"></a>00132 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00133"></a>00133 <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> {
<a name="l00134"></a>00134 <span class="preprocessor">#endif</span>
<a name="l00135"></a>00135 <span class="preprocessor"></span><span class="preprocessor">#if 0</span>
<a name="l00136"></a>00136 <span class="preprocessor"></span><span class="comment">/* Fool Emacs. */</span>
<a name="l00137"></a>00137 }
<a name="l00138"></a>00138 <span class="preprocessor">#endif</span>
<a name="l00139"></a>00139 <span class="preprocessor"></span>
<a name="l00144"></a><a class="code" href="genrand_8h.html#a88ed88daecb88e115d8559c1b0a09bb7">00144</a> <span class="preprocessor">#define s3_rand_seed(s) genrand_seed(s);</span>
<a name="l00145"></a>00145 <span class="preprocessor"></span><span class="preprocessor">#define s3_rand_int31() genrand_int31()</span>
<a name="l00146"></a>00146 <span class="preprocessor"></span><span class="preprocessor">#define s3_rand_real() genrand_real3()</span>
<a name="l00147"></a>00147 <span class="preprocessor"></span><span class="preprocessor">#define s3_rand_res53() genrand_res53()</span>
<a name="l00148"></a>00148 <span class="preprocessor"></span>
<a name="l00152"></a>00152 SPHINXBASE_EXPORT
<a name="l00153"></a>00153 <span class="keywordtype">void</span> <a class="code" href="genrand_8h.html#a2881c7b606d9a2b2852e5946d71d32b7" title="Initialize the seed of the random generator.">genrand_seed</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span> s);
<a name="l00154"></a>00154
<a name="l00158"></a>00158 SPHINXBASE_EXPORT
<a name="l00159"></a>00159 <span class="keywordtype">long</span> <a class="code" href="genrand_8h.html#a10263695978c84103fb3526fdae21d4c" title="generates a random number on [0,0x7fffffff]-interval">genrand_int31</a>(<span class="keywordtype">void</span>);
<a name="l00160"></a>00160
<a name="l00164"></a>00164 SPHINXBASE_EXPORT
<a name="l00165"></a>00165 <span class="keywordtype">double</span> <a class="code" href="genrand_8h.html#ad5fbfda1cb738d2beff277444bc71b1a" title="generates a random number on (0,1)-real-interval">genrand_real3</a>(<span class="keywordtype">void</span>);
<a name="l00166"></a>00166
<a name="l00170"></a>00170 SPHINXBASE_EXPORT
<a name="l00171"></a>00171 <span class="keywordtype">double</span> <a class="code" href="genrand_8h.html#a2fca03c5dad1835f55e09c6e66d3b960" title="generates a random number on [0,1) with 53-bit resolution">genrand_res53</a>(<span class="keywordtype">void</span>);
<a name="l00172"></a>00172
<a name="l00173"></a>00173 <span class="preprocessor">#ifdef __cplusplus</span>
<a name="l00174"></a>00174 <span class="preprocessor"></span>}
<a name="l00175"></a>00175 <span class="preprocessor">#endif</span>
<a name="l00176"></a>00176 <span class="preprocessor"></span>
<a name="l00177"></a>00177 <span class="preprocessor">#endif </span><span class="comment">/*_LIBUTIL_GENRAND_H_*/</span>
<a name="l00178"></a>00178
<a name="l00179"></a>00179
<a name="l00180"></a>00180
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