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<h1>src/libpocketsphinx/vector.h</h1> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* ====================================================================</span>
<a name="l00002"></a>00002 <span class="comment"> * Copyright (c) 1999-2004 Carnegie Mellon University. All rights</span>
<a name="l00003"></a>00003 <span class="comment"> * reserved.</span>
<a name="l00004"></a>00004 <span class="comment"> *</span>
<a name="l00005"></a>00005 <span class="comment"> * Redistribution and use in source and binary forms, with or without</span>
<a name="l00006"></a>00006 <span class="comment"> * modification, are permitted provided that the following conditions</span>
<a name="l00007"></a>00007 <span class="comment"> * are met:</span>
<a name="l00008"></a>00008 <span class="comment"> *</span>
<a name="l00009"></a>00009 <span class="comment"> * 1. Redistributions of source code must retain the above copyright</span>
<a name="l00010"></a>00010 <span class="comment"> * notice, this list of conditions and the following disclaimer. </span>
<a name="l00011"></a>00011 <span class="comment"> *</span>
<a name="l00012"></a>00012 <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright</span>
<a name="l00013"></a>00013 <span class="comment"> * notice, this list of conditions and the following disclaimer in</span>
<a name="l00014"></a>00014 <span class="comment"> * the documentation and/or other materials provided with the</span>
<a name="l00015"></a>00015 <span class="comment"> * distribution.</span>
<a name="l00016"></a>00016 <span class="comment"> *</span>
<a name="l00017"></a>00017 <span class="comment"> * This work was supported in part by funding from the Defense Advanced </span>
<a name="l00018"></a>00018 <span class="comment"> * Research Projects Agency and the National Science Foundation of the </span>
<a name="l00019"></a>00019 <span class="comment"> * United States of America, and the CMU Sphinx Speech Consortium.</span>
<a name="l00020"></a>00020 <span class="comment"> *</span>
<a name="l00021"></a>00021 <span class="comment"> * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND </span>
<a name="l00022"></a>00022 <span class="comment"> * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, </span>
<a name="l00023"></a>00023 <span class="comment"> * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR</span>
<a name="l00024"></a>00024 <span class="comment"> * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY</span>
<a name="l00025"></a>00025 <span class="comment"> * NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span>
<a name="l00026"></a>00026 <span class="comment"> * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT </span>
<a name="l00027"></a>00027 <span class="comment"> * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, </span>
<a name="l00028"></a>00028 <span class="comment"> * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY </span>
<a name="l00029"></a>00029 <span class="comment"> * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT </span>
<a name="l00030"></a>00030 <span class="comment"> * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE </span>
<a name="l00031"></a>00031 <span class="comment"> * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00032"></a>00032 <span class="comment"> *</span>
<a name="l00033"></a>00033 <span class="comment"> * ====================================================================</span>
<a name="l00034"></a>00034 <span class="comment"> *</span>
<a name="l00035"></a>00035 <span class="comment"> */</span>
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="comment">/*</span>
<a name="l00038"></a>00038 <span class="comment"> * vector.h -- vector routines.</span>
<a name="l00039"></a>00039 <span class="comment"> * </span>
<a name="l00040"></a>00040 <span class="comment"> * **********************************************</span>
<a name="l00041"></a>00041 <span class="comment"> * CMU ARPA Speech Project</span>
<a name="l00042"></a>00042 <span class="comment"> *</span>
<a name="l00043"></a>00043 <span class="comment"> * Copyright (c) 1997 Carnegie Mellon University.</span>
<a name="l00044"></a>00044 <span class="comment"> * ALL RIGHTS RESERVED.</span>
<a name="l00045"></a>00045 <span class="comment"> * **********************************************</span>
<a name="l00046"></a>00046 <span class="comment"> */</span>
<a name="l00047"></a>00047
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="preprocessor">#ifndef __VECTOR_H__</span>
<a name="l00050"></a>00050 <span class="preprocessor"></span><span class="preprocessor">#define __VECTOR_H__</span>
<a name="l00051"></a>00051 <span class="preprocessor"></span>
<a name="l00052"></a>00052 <span class="comment">/* System headers. */</span>
<a name="l00053"></a>00053 <span class="preprocessor">#include <stdio.h></span>
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <span class="comment">/* SphinxBase headers. */</span>
<a name="l00056"></a>00056 <span class="preprocessor">#include <sphinxbase/prim_type.h></span>
<a name="l00057"></a>00057
<a name="l00058"></a>00058 <span class="keyword">typedef</span> float32 *vector_t;
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="comment">/*</span>
<a name="l00061"></a>00061 <span class="comment"> * The reason for some of the "trivial" routines below is that they could be OPTIMIZED for SPEED</span>
<a name="l00062"></a>00062 <span class="comment"> * at some point.</span>
<a name="l00063"></a>00063 <span class="comment"> */</span>
<a name="l00064"></a>00064
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="comment">/* Floor all elements of v[0..dim-1] to min value of f */</span>
<a name="l00067"></a>00067 <span class="keywordtype">void</span> vector_floor(vector_t v, int32 dim, float64 f);
<a name="l00068"></a>00068
<a name="l00069"></a>00069
<a name="l00070"></a>00070 <span class="comment">/* Floor all non-0 elements of v[0..dim-1] to min value of f */</span>
<a name="l00071"></a>00071 <span class="keywordtype">void</span> vector_nz_floor(vector_t v, int32 dim, float64 f);
<a name="l00072"></a>00072
<a name="l00073"></a>00073
<a name="l00074"></a>00074 <span class="comment">/*</span>
<a name="l00075"></a>00075 <span class="comment"> * Normalize the elements of the given vector so that they sum to 1.0. If the sum is 0.0</span>
<a name="l00076"></a>00076 <span class="comment"> * to begin with, the vector is left untouched. Return value: The normalization factor.</span>
<a name="l00077"></a>00077 <span class="comment"> */</span>
<a name="l00078"></a>00078 float64 vector_sum_norm(vector_t v, int32 dim);
<a name="l00079"></a>00079
<a name="l00080"></a>00080
<a name="l00081"></a>00081 <span class="comment">/* Print vector in one line, in %11.4e format, terminated by newline */</span>
<a name="l00082"></a>00082 <span class="keywordtype">void</span> vector_print(FILE *fp, vector_t v, int32 dim);
<a name="l00083"></a>00083
<a name="l00084"></a>00084
<a name="l00085"></a>00085 <span class="comment">/* Return TRUE iff given vector is all 0.0 */</span>
<a name="l00086"></a>00086 int32 vector_is_zero (float32 *vec, <span class="comment">/* In: Vector to be checked */</span>
<a name="l00087"></a>00087 int32 len); <span class="comment">/* In: Length of above vector */</span>
<a name="l00088"></a>00088
<a name="l00089"></a>00089 <span class="preprocessor">#endif </span><span class="comment">/* VECTOR_H */</span>
<a name="l00090"></a>00090
<a name="l00091"></a>00091
<a name="l00092"></a>00092 <span class="comment">/*</span>
<a name="l00093"></a>00093 <span class="comment"> * Log record. Maintained by RCS.</span>
<a name="l00094"></a>00094 <span class="comment"> *</span>
<a name="l00095"></a>00095 <span class="comment"> * Revision 1.1.1.1 2004/03/29 20:29:40 rkm</span>
<a name="l00096"></a>00096 <span class="comment"> *</span>
<a name="l00097"></a>00097 <span class="comment"> *</span>
<a name="l00098"></a>00098 <span class="comment"> * Revision 1.1.1.1 2004/03/05 16:55:44 rkm</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"> * Revision 1.1.1.1 2000/02/28 18:05:54 rkm</span>
<a name="l00102"></a>00102 <span class="comment"> * Imported Sources</span>
<a name="l00103"></a>00103 <span class="comment"> *</span>
<a name="l00104"></a>00104 <span class="comment"> * Revision 1.1.1.1 1999/11/23 20:24:18 rkm</span>
<a name="l00105"></a>00105 <span class="comment"> * imported sources</span>
<a name="l00106"></a>00106 <span class="comment"> *</span>
<a name="l00107"></a>00107 <span class="comment"> * Revision 1.2 1995/10/09 20:55:35 eht</span>
<a name="l00108"></a>00108 <span class="comment"> * Changes for prim_type.h</span>
<a name="l00109"></a>00109 <span class="comment"> *</span>
<a name="l00110"></a>00110 <span class="comment"> * Revision 1.1 1995/08/15 13:44:14 eht</span>
<a name="l00111"></a>00111 <span class="comment"> * Initial revision</span>
<a name="l00112"></a>00112 <span class="comment"> *</span>
<a name="l00113"></a>00113 <span class="comment"> *</span>
<a name="l00114"></a>00114 <span class="comment"> */</span>
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