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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">/* ====================================================================</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Copyright (c) 1999-2007 Carnegie Mellon University. All rights</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * reserved.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * modification, are permitted provided that the following conditions</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * are met:</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * 1. Redistributions of source code must retain the above copyright</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * notice, this list of conditions and the following disclaimer. </span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * notice, this list of conditions and the following disclaimer in</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * the documentation and/or other materials provided with the</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * distribution.</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * This work was supported in part by funding from the Defense Advanced </span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * Research Projects Agency and the National Science Foundation of the </span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * United States of America, and the CMU Sphinx Speech Consortium.</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS'' AND </span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, </span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT </span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, </span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY </span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT </span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE </span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> * ====================================================================</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> * \file lm3g_templates.c Core Sphinx 3-gram code used in</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> * DMP/DMP32/ARPA (for now) model code.</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#include <assert.h></span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment">/* Locate a specific bigram within a bigram list */</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#define BINARY_SEARCH_THRESH 16</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">static</span> int32</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> find_bg(<a class="code" href="structbigram__s.html">bigram_t</a> * bg, int32 n, int32 w)</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> {</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  int32 i, b, e;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="comment">/* Binary search until segment size < threshold */</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  b = 0;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  e = n;</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">while</span> (e - b > BINARY_SEARCH_THRESH) {</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  i = (b + e) >> 1;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">if</span> (bg[i].wid < w)</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  b = i + 1;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (bg[i].wid > w)</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  e = i;</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  }</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="comment">/* Linear search within narrowed segment */</span></div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordflow">for</span> (i = b; (i < e) && (bg[i].wid != w); i++);</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">return</span> ((i < e) ? i : -1);</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> }</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="keyword">static</span> int32</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> lm3g_bg_score(NGRAM_MODEL_TYPE *model,</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  int32 lw1, int32 lw2, int32 *n_used)</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> {</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  int32 i, n, b, score;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <a class="code" href="structbigram__s.html">bigram_t</a> *bg;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">if</span> (lw1 < 0 || model->base.n < 2) {</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  *n_used = 1;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">return</span> model->lm3g.unigrams[lw2].prob1.l;</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  }</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  b = FIRST_BG(model, lw1);</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  n = FIRST_BG(model, lw1 + 1) - b;</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  bg = model->lm3g.bigrams + b;</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">if</span> ((i = find_bg(bg, n, lw2)) >= 0) {</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="comment">/* Access mode = bigram */</span></div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  *n_used = 2;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  score = model->lm3g.<a class="code" href="structbigram__s.html#a769b8a54f864ac4844e37cfa17ed1af0">prob2</a>[bg[i].<a class="code" href="structbigram__s.html#a769b8a54f864ac4844e37cfa17ed1af0">prob2</a>].l;</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  }</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="comment">/* Access mode = unigram */</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  *n_used = 1;</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  score = model->lm3g.unigrams[lw1].bo_wt1.l + model->lm3g.unigrams[lw2].prob1.l;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  }</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">return</span> (score);</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> }</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> load_tginfo(NGRAM_MODEL_TYPE *model, int32 lw1, int32 lw2)</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> {</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  int32 i, n, b, t;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <a class="code" href="structbigram__s.html">bigram_t</a> *bg;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <a class="code" href="structtginfo__s.html">tginfo_t</a> *tginfo;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="comment">/* First allocate space for tg information for bg lw1,lw2 */</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  tginfo = (<a class="code" href="structtginfo__s.html">tginfo_t</a> *) <a class="code" href="listelem__alloc_8h.html#ad0c40e65d9cca0d7ec08fcf416b09af2">listelem_malloc</a>(model->lm3g.le);</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  tginfo-><a class="code" href="structtginfo__s.html#aa151a34891820c55e0fef60cc74b6e05">w1</a> = lw1;</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  tginfo-><a class="code" href="structtginfo__s.html#a3642dc5ac56de1829665bb7d42c9372a">tg</a> = NULL;</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  tginfo-><a class="code" href="structtginfo__s.html#a184e60660a4c8168b5268260cd98ffa5">next</a> = model->lm3g.tginfo[lw2];</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  model->lm3g.tginfo[lw2] = tginfo;</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="comment">/* Locate bigram lw1,lw2 */</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  b = model->lm3g.unigrams[lw1].bigrams;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  n = model->lm3g.unigrams[lw1 + 1].bigrams - b;</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  bg = model->lm3g.bigrams + b;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> </div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordflow">if</span> ((n > 0) && ((i = find_bg(bg, n, lw2)) >= 0)) {</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  tginfo-><a class="code" href="structtginfo__s.html#ac5e9be48da8563941be03f3cd09e3c25">bowt</a> = model->lm3g.bo_wt2[bg[i].<a class="code" href="structbigram__s.html#a410991054e81251285cbc209964cdaf4">bo_wt2</a>].l;</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span> </div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="comment">/* Find t = Absolute first trigram index for bigram lw1,lw2 */</span></div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  b += i; <span class="comment">/* b = Absolute index of bigram lw1,lw2 on disk */</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  t = FIRST_TG(model, b);</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> </div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  tginfo-><a class="code" href="structtginfo__s.html#a3642dc5ac56de1829665bb7d42c9372a">tg</a> = model->lm3g.trigrams + t;</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="comment">/* Find #tg for bigram w1,w2 */</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  tginfo-><a class="code" href="structtginfo__s.html#a5eb046b3d09a4c80e4cdf216c6c7eb46">n_tg</a> = FIRST_TG(model, b + 1) - t;</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  }</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">else</span> { <span class="comment">/* No bigram w1,w2 */</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  tginfo-><a class="code" href="structtginfo__s.html#ac5e9be48da8563941be03f3cd09e3c25">bowt</a> = 0;</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  tginfo-><a class="code" href="structtginfo__s.html#a5eb046b3d09a4c80e4cdf216c6c7eb46">n_tg</a> = 0;</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  }</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> }</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> <span class="comment">/* Similar to find_bg */</span></div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="keyword">static</span> int32</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> find_tg(<a class="code" href="structtrigram__s.html">trigram_t</a> * tg, int32 n, int32 w)</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> {</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  int32 i, b, e;</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  b = 0;</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  e = n;</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keywordflow">while</span> (e - b > BINARY_SEARCH_THRESH) {</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  i = (b + e) >> 1;</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">if</span> (tg[i].wid < w)</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  b = i + 1;</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (tg[i].wid > w)</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  e = i;</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  }</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">for</span> (i = b; (i < e) && (tg[i].wid != w); i++);</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordflow">return</span> ((i < e) ? i : -1);</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> }</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="keyword">static</span> int32</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> lm3g_tg_score(NGRAM_MODEL_TYPE *model, int32 lw1,</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  int32 lw2, int32 lw3, int32 *n_used)</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> {</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <a class="code" href="structngram__model__s.html">ngram_model_t</a> *base = &model->base;</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  int32 i, n, score;</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <a class="code" href="structtrigram__s.html">trigram_t</a> *tg;</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <a class="code" href="structtginfo__s.html">tginfo_t</a> *tginfo, *prev_tginfo;</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">if</span> ((base-><a class="code" href="structngram__model__s.html#a3c87bc1b678662a2c8930b3b8c33a80f">n</a> < 3) || (lw1 < 0) || (lw2 < 0))</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">return</span> (lm3g_bg_score(model, lw2, lw3, n_used));</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  prev_tginfo = NULL;</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <span class="keywordflow">for</span> (tginfo = model->lm3g.tginfo[lw2]; tginfo; tginfo = tginfo-><a class="code" href="structtginfo__s.html#a184e60660a4c8168b5268260cd98ffa5">next</a>) {</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">if</span> (tginfo-><a class="code" href="structtginfo__s.html#aa151a34891820c55e0fef60cc74b6e05">w1</a> == lw1)</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  prev_tginfo = tginfo;</div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  }</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordflow">if</span> (!tginfo) {</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  load_tginfo(model, lw1, lw2);</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  tginfo = model->lm3g.tginfo[lw2];</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  }</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (prev_tginfo) {</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  prev_tginfo-><a class="code" href="structtginfo__s.html#a184e60660a4c8168b5268260cd98ffa5">next</a> = tginfo-><a class="code" href="structtginfo__s.html#a184e60660a4c8168b5268260cd98ffa5">next</a>;</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  tginfo-><a class="code" href="structtginfo__s.html#a184e60660a4c8168b5268260cd98ffa5">next</a> = model->lm3g.tginfo[lw2];</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  model->lm3g.tginfo[lw2] = tginfo;</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  }</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  tginfo-><a class="code" href="structtginfo__s.html#a38d6aa51b244a7138c476a6e663ffbb4">used</a> = 1;</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="comment">/* Trigrams for w1,w2 now pointed to by tginfo */</span></div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  n = tginfo-><a class="code" href="structtginfo__s.html#a5eb046b3d09a4c80e4cdf216c6c7eb46">n_tg</a>;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  tg = tginfo-><a class="code" href="structtginfo__s.html#a3642dc5ac56de1829665bb7d42c9372a">tg</a>;</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordflow">if</span> ((i = find_tg(tg, n, lw3)) >= 0) {</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="comment">/* Access mode = trigram */</span></div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  *n_used = 3;</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  score = model->lm3g.<a class="code" href="structtrigram__s.html#a52f3fad42f7c653a469af0c1b75988a9">prob3</a>[tg[i].<a class="code" href="structtrigram__s.html#a52f3fad42f7c653a469af0c1b75988a9">prob3</a>].l;</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  }</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  score = tginfo-><a class="code" href="structtginfo__s.html#ac5e9be48da8563941be03f3cd09e3c25">bowt</a> + lm3g_bg_score(model, lw2, lw3, n_used);</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  }</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keywordflow">return</span> (score);</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> }</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> </div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <span class="keyword">static</span> int32</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> lm3g_template_score(<a class="code" href="structngram__model__s.html">ngram_model_t</a> *base, int32 wid,</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  int32 *history, int32 n_hist,</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  int32 *n_used)</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> {</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  NGRAM_MODEL_TYPE *model = (NGRAM_MODEL_TYPE *)base;</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <span class="keywordflow">switch</span> (n_hist) {</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">case</span> 0:</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="comment">/* Access mode: unigram */</span></div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  *n_used = 1;</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">return</span> model->lm3g.unigrams[wid].prob1.l;</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">case</span> 1:</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  <span class="keywordflow">return</span> lm3g_bg_score(model, history[0], wid, n_used);</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keywordflow">case</span> 2:</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="comment">/* Anything greater than 2 is the same as a trigram for now. */</span></div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">return</span> lm3g_tg_score(model, history[1], history[0], wid, n_used);</div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  }</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> }</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> </div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="keyword">static</span> int32</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> lm3g_template_raw_score(<a class="code" href="structngram__model__s.html">ngram_model_t</a> *base, int32 wid,</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  int32 *history, int32 n_hist,</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  int32 *n_used)</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> {</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  NGRAM_MODEL_TYPE *model = (NGRAM_MODEL_TYPE *)base;</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  int32 score;</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> </div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">switch</span> (n_hist) {</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordflow">case</span> 0:</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="comment">/* Access mode: unigram */</span></div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  *n_used = 1;</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="comment">/* Undo insertion penalty. */</span></div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  score = model->lm3g.unigrams[wid].prob1.l - base-><a class="code" href="structngram__model__s.html#a3d6bf5632760a16e52cb881d7010d774">log_wip</a>;</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="comment">/* Undo language weight. */</span></div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  score = (int32)(score / base-><a class="code" href="structngram__model__s.html#a76ea0c65b23de80091e7c602bdb43bde">lw</a>);</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="comment">/* Undo unigram interpolation */</span></div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">if</span> (strcmp(base-><a class="code" href="structngram__model__s.html#ae625e779e340845f03fb3da164e93039">word_str</a>[wid], <span class="stringliteral">"<s>"</span>) != 0) { <span class="comment">/* FIXME: configurable start_sym */</span></div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <span class="comment">/* This operation is numerically unstable, so try to avoid it</span></div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span> <span class="comment"> * as possible */</span></div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">if</span> (base-><a class="code" href="structngram__model__s.html#a616bf871a67f9cedce17d6b589ee33ea">log_uniform</a> + base-><a class="code" href="structngram__model__s.html#aa38c5fdecaefd9a2f43b69f26ae492c1">log_uniform_weight</a> > <a class="code" href="logmath_8h.html#a1c160c28a9e7d25923f391773b1028c0">logmath_get_zero</a>(base-><a class="code" href="structngram__model__s.html#a2ca373109c651ac998b33153eb38fd95">lmath</a>)) {</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  score = <a class="code" href="logmath_8h.html#aebb4711268322fa7aec31e5798fe7e90">logmath_log</a>(base-><a class="code" href="structngram__model__s.html#a2ca373109c651ac998b33153eb38fd95">lmath</a>,</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <a class="code" href="logmath_8h.html#ae8b0a168e29e448c0d6de66dc46e099e">logmath_exp</a>(base-><a class="code" href="structngram__model__s.html#a2ca373109c651ac998b33153eb38fd95">lmath</a>, score)</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  - <a class="code" href="logmath_8h.html#ae8b0a168e29e448c0d6de66dc46e099e">logmath_exp</a>(base-><a class="code" href="structngram__model__s.html#a2ca373109c651ac998b33153eb38fd95">lmath</a>, </div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  base-><a class="code" href="structngram__model__s.html#a616bf871a67f9cedce17d6b589ee33ea">log_uniform</a> + base-><a class="code" href="structngram__model__s.html#aa38c5fdecaefd9a2f43b69f26ae492c1">log_uniform_weight</a>));</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  }</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  }</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <span class="keywordflow">return</span> score;</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keywordflow">case</span> 1:</div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  score = lm3g_bg_score(model, history[0], wid, n_used);</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordflow">case</span> 2:</div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  <span class="comment">/* Anything greater than 2 is the same as a trigram for now. */</span></div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  score = lm3g_tg_score(model, history[1], history[0], wid, n_used);</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  }</div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="comment">/* FIXME (maybe): This doesn't undo unigram weighting in backoff cases. */</span></div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keywordflow">return</span> (int32)((score - base-><a class="code" href="structngram__model__s.html#a3d6bf5632760a16e52cb881d7010d774">log_wip</a>) / base-><a class="code" href="structngram__model__s.html#a76ea0c65b23de80091e7c602bdb43bde">lw</a>);</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> }</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span> </div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> <span class="keyword">static</span> int32</div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span> lm3g_template_add_ug(<a class="code" href="structngram__model__s.html">ngram_model_t</a> *base,</div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  int32 wid, int32 lweight)</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span> {</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  NGRAM_MODEL_TYPE *model = (NGRAM_MODEL_TYPE *)base;</div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">return</span> lm3g_add_ug(base, &model->lm3g, wid, lweight);</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> }</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> </div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span> lm3g_template_flush(<a class="code" href="structngram__model__s.html">ngram_model_t</a> *base)</div>
<div class="line"><a name="l00275"></a><span class="lineno"> 275</span> {</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  NGRAM_MODEL_TYPE *model = (NGRAM_MODEL_TYPE *)base;</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  lm3g_tginfo_reset(base, &model->lm3g);</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> }</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span> </div>
<div class="line"><a name="l00280"></a><span class="lineno"><a class="line" href="structlm3g__iter__s.html"> 280</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structlm3g__iter__s.html">lm3g_iter_s</a> {</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <a class="code" href="structngram__iter__s.html">ngram_iter_t</a> base;</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <a class="code" href="structunigram__s.html">unigram_t</a> *ug;</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <a class="code" href="structbigram__s.html">bigram_t</a> *bg;</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  <a class="code" href="structtrigram__s.html">trigram_t</a> *tg;</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> } <a class="code" href="structlm3g__iter__s.html">lm3g_iter_t</a>;</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span> </div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="keyword">static</span> <a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> lm3g_template_iter(<a class="code" href="structngram__model__s.html">ngram_model_t</a> *base, int32 wid,</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  int32 *history, int32 n_hist)</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span> {</div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  NGRAM_MODEL_TYPE *model = (NGRAM_MODEL_TYPE *)base;</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <a class="code" href="structlm3g__iter__s.html">lm3g_iter_t</a> *itor = <a class="code" href="ckd__alloc_8h.html#aa00ef21903bc4f8a972488417adc8d2e">ckd_calloc</a>(1, <span class="keyword">sizeof</span>(*itor));</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span> </div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  ngram_iter_init((<a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *)itor, base, n_hist, FALSE);</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> </div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keywordflow">if</span> (n_hist == 0) {</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="comment">/* Unigram is the easiest. */</span></div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  itor->ug = model->lm3g.unigrams + wid;</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  <span class="keywordflow">return</span> (<a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *)itor;</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  }</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (n_hist == 1) {</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  int32 i, n, b;</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="comment">/* Find the bigram, as in bg_score above (duplicate code...) */</span></div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  itor->ug = model->lm3g.unigrams + history[0];</div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  b = FIRST_BG(model, history[0]);</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  n = FIRST_BG(model, history[0] + 1) - b;</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  itor->bg = model->lm3g.bigrams + b;</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="comment">/* If no such bigram exists then fail. */</span></div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="keywordflow">if</span> ((i = find_bg(itor->bg, n, wid)) < 0) {</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <a class="code" href="ngram__model_8h.html#ac9f746c8a5db78ef8b2fb7c312be4a22">ngram_iter_free</a>((<a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *)itor);</div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  }</div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  itor->bg += i;</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <span class="keywordflow">return</span> (<a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *)itor;</div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  }</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (n_hist == 2) {</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  int32 i, n;</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <a class="code" href="structtginfo__s.html">tginfo_t</a> *tginfo, *prev_tginfo;</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="comment">/* Find the trigram, as in tg_score above (duplicate code...) */</span></div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  itor->ug = model->lm3g.unigrams + history[1];</div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  prev_tginfo = NULL;</div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  <span class="keywordflow">for</span> (tginfo = model->lm3g.tginfo[history[0]];</div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  tginfo; tginfo = tginfo-><a class="code" href="structtginfo__s.html#a184e60660a4c8168b5268260cd98ffa5">next</a>) {</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="keywordflow">if</span> (tginfo-><a class="code" href="structtginfo__s.html#aa151a34891820c55e0fef60cc74b6e05">w1</a> == history[1])</div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  prev_tginfo = tginfo;</div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  }</div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span> </div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  <span class="keywordflow">if</span> (!tginfo) {</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  load_tginfo(model, history[1], history[0]);</div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  tginfo = model->lm3g.tginfo[history[0]];</div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  }</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (prev_tginfo) {</div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  prev_tginfo-><a class="code" href="structtginfo__s.html#a184e60660a4c8168b5268260cd98ffa5">next</a> = tginfo-><a class="code" href="structtginfo__s.html#a184e60660a4c8168b5268260cd98ffa5">next</a>;</div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  tginfo-><a class="code" href="structtginfo__s.html#a184e60660a4c8168b5268260cd98ffa5">next</a> = model->lm3g.tginfo[history[0]];</div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  model->lm3g.tginfo[history[0]] = tginfo;</div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  }</div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span> </div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  tginfo-><a class="code" href="structtginfo__s.html#a38d6aa51b244a7138c476a6e663ffbb4">used</a> = 1;</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span> </div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <span class="comment">/* Trigrams for w1,w2 now pointed to by tginfo */</span></div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  n = tginfo-><a class="code" href="structtginfo__s.html#a5eb046b3d09a4c80e4cdf216c6c7eb46">n_tg</a>;</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  itor->tg = tginfo-><a class="code" href="structtginfo__s.html#a3642dc5ac56de1829665bb7d42c9372a">tg</a>;</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="keywordflow">if</span> ((i = find_tg(itor->tg, n, wid)) >= 0) {</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  itor->tg += i;</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="comment">/* Now advance the bigram pointer accordingly. FIXME:</span></div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span> <span class="comment"> * Note that we actually already found the relevant bigram</span></div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span> <span class="comment"> * in load_tginfo. */</span></div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  itor->bg = model->lm3g.bigrams;</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <span class="keywordflow">while</span> (FIRST_TG(model, (itor->bg - model->lm3g.bigrams + 1))</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <= (itor->tg - model->lm3g.trigrams))</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  ++itor->bg;</div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="keywordflow">return</span> (<a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *)itor;</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  }</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <a class="code" href="ngram__model_8h.html#ac9f746c8a5db78ef8b2fb7c312be4a22">ngram_iter_free</a>((<a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *)itor);</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordflow">return</span> (<a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *)NULL;</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  }</div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  }</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="comment">/* Should not happen. */</span></div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  assert(n_hist == 0); <span class="comment">/* Guaranteed to fail. */</span></div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  <a class="code" href="ngram__model_8h.html#ac9f746c8a5db78ef8b2fb7c312be4a22">ngram_iter_free</a>((<a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *)itor);</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  }</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span> }</div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span> </div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span> <span class="keyword">static</span> <a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span> lm3g_template_mgrams(<a class="code" href="structngram__model__s.html">ngram_model_t</a> *base, <span class="keywordtype">int</span> m)</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span> {</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  NGRAM_MODEL_TYPE *model = (NGRAM_MODEL_TYPE *)base;</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  <a class="code" href="structlm3g__iter__s.html">lm3g_iter_t</a> *itor = <a class="code" href="ckd__alloc_8h.html#aa00ef21903bc4f8a972488417adc8d2e">ckd_calloc</a>(1, <span class="keyword">sizeof</span>(*itor));</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  ngram_iter_init((<a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *)itor, base, m, FALSE);</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span> </div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  itor->ug = model->lm3g.unigrams;</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>  itor->bg = model->lm3g.bigrams;</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  itor->tg = model->lm3g.trigrams;</div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span> </div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  <span class="comment">/* Advance bigram pointer to match first trigram. */</span></div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <span class="keywordflow">if</span> (m > 1 && base-><a class="code" href="structngram__model__s.html#a9dcba9b49cc1cd189b257e5838da0eee">n_counts</a>[1] > 1) {</div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  <span class="keywordflow">while</span> (FIRST_TG(model, (itor->bg - model->lm3g.bigrams + 1))</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  <= (itor->tg - model->lm3g.trigrams))</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  ++itor->bg;</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  }</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span> </div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <span class="comment">/* Advance unigram pointer to match first bigram. */</span></div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="keywordflow">if</span> (m > 0 && base-><a class="code" href="structngram__model__s.html#a9dcba9b49cc1cd189b257e5838da0eee">n_counts</a>[0] > 1) {</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="keywordflow">while</span> (itor->ug[1].<a class="code" href="structunigram__s.html#ae148f631c0d9851b14bb9cb31c0c061d">bigrams</a> <= (itor->bg - model->lm3g.bigrams))</div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  ++itor->ug;</div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  }</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span> </div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <span class="keywordflow">return</span> (<a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *)itor;</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span> }</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span> </div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span> <span class="keyword">static</span> <a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *</div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span> lm3g_template_successors(<a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *bitor)</div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span> {</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  NGRAM_MODEL_TYPE *model = (NGRAM_MODEL_TYPE *)bitor->model;</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <a class="code" href="structlm3g__iter__s.html">lm3g_iter_t</a> *from = (<a class="code" href="structlm3g__iter__s.html">lm3g_iter_t</a> *)bitor;</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  <a class="code" href="structlm3g__iter__s.html">lm3g_iter_t</a> *itor = <a class="code" href="ckd__alloc_8h.html#aa00ef21903bc4f8a972488417adc8d2e">ckd_calloc</a>(1, <span class="keyword">sizeof</span>(*itor));</div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span> </div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  itor->ug = from->ug;</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  <span class="keywordflow">switch</span> (bitor-><a class="code" href="structngram__iter__s.html#a80bce30ba5b180f85ca84d7288715858">m</a>) {</div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keywordflow">case</span> 0:</div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <span class="comment">/* Next itor bigrams is the same as this itor bigram or</span></div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span> <span class="comment"> itor bigrams is more than total count. This means no successors */</span></div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keywordflow">if</span> (((itor->ug + 1) - model->lm3g.unigrams < bitor->model-><a class="code" href="structngram__model__s.html#a9dcba9b49cc1cd189b257e5838da0eee">n_counts</a>[0] &&</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  itor->ug-><a class="code" href="structunigram__s.html#ae148f631c0d9851b14bb9cb31c0c061d">bigrams</a> == (itor->ug + 1)->bigrams) || </div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  itor->ug-><a class="code" href="structunigram__s.html#ae148f631c0d9851b14bb9cb31c0c061d">bigrams</a> == bitor->model-><a class="code" href="structngram__model__s.html#a9dcba9b49cc1cd189b257e5838da0eee">n_counts</a>[1])</div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  <span class="keywordflow">goto</span> done;</div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  </div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  <span class="comment">/* Start iterating from first bigram successor of from->ug. */</span></div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  itor->bg = model->lm3g.bigrams + itor->ug-><a class="code" href="structunigram__s.html#ae148f631c0d9851b14bb9cb31c0c061d">bigrams</a>;</div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="keywordflow">case</span> 1:</div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  itor->bg = from->bg;</div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  </div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="comment">/* This indicates no successors */</span></div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  <span class="keywordflow">if</span> (((itor->bg + 1) - model->lm3g.bigrams < bitor->model-><a class="code" href="structngram__model__s.html#a9dcba9b49cc1cd189b257e5838da0eee">n_counts</a>[1] &&</div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  FIRST_TG (model, itor->bg - model->lm3g.bigrams) == </div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  FIRST_TG (model, (itor->bg + 1) - model->lm3g.bigrams)) ||</div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  FIRST_TG (model, itor->bg - model->lm3g.bigrams) == bitor->model-><a class="code" href="structngram__model__s.html#a9dcba9b49cc1cd189b257e5838da0eee">n_counts</a>[2])</div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  <span class="keywordflow">goto</span> done;</div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  </div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <span class="comment">/* Start iterating from first trigram successor of from->bg. */</span></div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  itor->tg = (model->lm3g.trigrams </div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  + FIRST_TG(model, (itor->bg - model->lm3g.bigrams)));</div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span> <span class="preprocessor">#if 0</span></div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  printf(<span class="stringliteral">"%s %s => %d (%s)\n"</span>,</div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  model->base.word_str[itor->ug - model->lm3g.unigrams],</div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  model->base.word_str[itor->bg-><a class="code" href="structbigram__s.html#af66faad954d56f5ceaf6ba47cdcd9b1f">wid</a>],</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  FIRST_TG(model, (itor->bg - model->lm3g.bigrams)),</div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  model->base.word_str[itor->tg-><a class="code" href="structtrigram__s.html#a492e1fedb16fa11d26a941177c1305be">wid</a>]);</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <span class="keywordflow">case</span> 2:</div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <span class="keywordflow">default</span>:</div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <span class="comment">/* All invalid! */</span></div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <span class="keywordflow">goto</span> done;</div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  }</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span> </div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  ngram_iter_init((<a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *)itor, bitor->model, bitor-><a class="code" href="structngram__iter__s.html#a80bce30ba5b180f85ca84d7288715858">m</a> + 1, TRUE);</div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordflow">return</span> (<a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *)itor;</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  done:</div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <a class="code" href="ckd__alloc_8h.html#a31c6b405558620ac37599737b5722fbf">ckd_free</a>(itor);</div>
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span> }</div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span> </div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span> <span class="keyword">static</span> int32 <span class="keyword">const</span> *</div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span> lm3g_template_iter_get(<a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *base,</div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  int32 *out_score, int32 *out_bowt)</div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span> {</div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  NGRAM_MODEL_TYPE *model = (NGRAM_MODEL_TYPE *)base->model;</div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  <a class="code" href="structlm3g__iter__s.html">lm3g_iter_t</a> *itor = (<a class="code" href="structlm3g__iter__s.html">lm3g_iter_t</a> *)base;</div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span> </div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  base-><a class="code" href="structngram__iter__s.html#a1362ebe2dcf1c441929c845fc97958cb">wids</a>[0] = itor->ug - model->lm3g.unigrams;</div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <span class="keywordflow">if</span> (itor->bg) base-><a class="code" href="structngram__iter__s.html#a1362ebe2dcf1c441929c845fc97958cb">wids</a>[1] = itor->bg-><a class="code" href="structbigram__s.html#af66faad954d56f5ceaf6ba47cdcd9b1f">wid</a>;</div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  <span class="keywordflow">if</span> (itor->tg) base-><a class="code" href="structngram__iter__s.html#a1362ebe2dcf1c441929c845fc97958cb">wids</a>[2] = itor->tg-><a class="code" href="structtrigram__s.html#a492e1fedb16fa11d26a941177c1305be">wid</a>;</div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span> <span class="preprocessor">#if 0</span></div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  printf(<span class="stringliteral">"itor_get: %d %d %d\n"</span>, base-><a class="code" href="structngram__iter__s.html#a1362ebe2dcf1c441929c845fc97958cb">wids</a>[0], base-><a class="code" href="structngram__iter__s.html#a1362ebe2dcf1c441929c845fc97958cb">wids</a>[1], base-><a class="code" href="structngram__iter__s.html#a1362ebe2dcf1c441929c845fc97958cb">wids</a>[2]);</div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span> </div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="keywordflow">switch</span> (base-><a class="code" href="structngram__iter__s.html#a80bce30ba5b180f85ca84d7288715858">m</a>) {</div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <span class="keywordflow">case</span> 0:</div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  *out_score = itor->ug-><a class="code" href="structunigram__s.html#a488db9623272838a933cd4b768409fea">prob1</a>.l;</div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  *out_bowt = itor->ug-><a class="code" href="structunigram__s.html#ad33b4af5b40a8d13ffae932bab003df6">bo_wt1</a>.l;</div>
<div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  <span class="keywordflow">case</span> 1:</div>
<div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  *out_score = model->lm3g.prob2[itor->bg-><a class="code" href="structbigram__s.html#a769b8a54f864ac4844e37cfa17ed1af0">prob2</a>].l;</div>
<div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  <span class="keywordflow">if</span> (model->lm3g.bo_wt2)</div>
<div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  *out_bowt = model->lm3g.bo_wt2[itor->bg-><a class="code" href="structbigram__s.html#a410991054e81251285cbc209964cdaf4">bo_wt2</a>].l;</div>
<div class="line"><a name="l00472"></a><span class="lineno"> 472</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  *out_bowt = 0;</div>
<div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  <span class="keywordflow">case</span> 2:</div>
<div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  *out_score = model->lm3g.prob3[itor->tg-><a class="code" href="structtrigram__s.html#a52f3fad42f7c653a469af0c1b75988a9">prob3</a>].l;</div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  *out_bowt = 0;</div>
<div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  <span class="keywordflow">default</span>: <span class="comment">/* Should not happen. */</span></div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  }</div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  <span class="keywordflow">return</span> base-><a class="code" href="structngram__iter__s.html#a1362ebe2dcf1c441929c845fc97958cb">wids</a>;</div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span> }</div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span> </div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span> <span class="keyword">static</span> <a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *</div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span> lm3g_template_iter_next(<a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *base)</div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span> {</div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  NGRAM_MODEL_TYPE *model = (NGRAM_MODEL_TYPE *)base->model;</div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  <a class="code" href="structlm3g__iter__s.html">lm3g_iter_t</a> *itor = (<a class="code" href="structlm3g__iter__s.html">lm3g_iter_t</a> *)base;</div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span> </div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  <span class="keywordflow">switch</span> (base-><a class="code" href="structngram__iter__s.html#a80bce30ba5b180f85ca84d7288715858">m</a>) {</div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  <span class="keywordflow">case</span> 0:</div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  ++itor->ug;</div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  <span class="comment">/* Check for end condition. */</span></div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  <span class="keywordflow">if</span> (itor->ug - model->lm3g.unigrams >= base->model-><a class="code" href="structngram__model__s.html#a9dcba9b49cc1cd189b257e5838da0eee">n_counts</a>[0])</div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  <span class="keywordflow">goto</span> done;</div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="keywordflow">case</span> 1:</div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  ++itor->bg;</div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  <span class="comment">/* Check for end condition. */</span></div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="keywordflow">if</span> (itor->bg - model->lm3g.bigrams >= base->model-><a class="code" href="structngram__model__s.html#a9dcba9b49cc1cd189b257e5838da0eee">n_counts</a>[1])</div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  <span class="keywordflow">goto</span> done;</div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  <span class="comment">/* Advance unigram pointer if necessary in order to get one</span></div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span> <span class="comment"> * that points to this bigram. */</span></div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  <span class="keywordflow">while</span> (itor->bg - model->lm3g.bigrams >= itor->ug[1].<a class="code" href="structunigram__s.html#ae148f631c0d9851b14bb9cb31c0c061d">bigrams</a>) {</div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  <span class="comment">/* Stop if this is a successor iterator, since we don't</span></div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span> <span class="comment"> * want a new unigram. */</span></div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  <span class="keywordflow">if</span> (base-><a class="code" href="structngram__iter__s.html#a7802a7883b1cc246b1bff629cd2cfb08">successor</a>)</div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <span class="keywordflow">goto</span> done;</div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  ++itor->ug;</div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="keywordflow">if</span> (itor->ug == model->lm3g.unigrams + base->model-><a class="code" href="structngram__model__s.html#a9dcba9b49cc1cd189b257e5838da0eee">n_counts</a>[0]) {</div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  <a class="code" href="err_8h.html#a5f7b2f58f5a663a6bdd51f197ae21993">E_ERROR</a>(<span class="stringliteral">"Bigram %d has no valid unigram parent\n"</span>,</div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  itor->bg - model->lm3g.bigrams);</div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  <span class="keywordflow">goto</span> done;</div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  }</div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  }</div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  <span class="keywordflow">case</span> 2:</div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  ++itor->tg;</div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  <span class="comment">/* Check for end condition. */</span></div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  <span class="keywordflow">if</span> (itor->tg - model->lm3g.trigrams >= base->model-><a class="code" href="structngram__model__s.html#a9dcba9b49cc1cd189b257e5838da0eee">n_counts</a>[2])</div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  <span class="keywordflow">goto</span> done;</div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="comment">/* Advance bigram pointer if necessary. */</span></div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <span class="keywordflow">while</span> (itor->tg - model->lm3g.trigrams >=</div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  FIRST_TG(model, (itor->bg - model->lm3g.bigrams + 1))) {</div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  <span class="keywordflow">if</span> (base-><a class="code" href="structngram__iter__s.html#a7802a7883b1cc246b1bff629cd2cfb08">successor</a>)</div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  <span class="keywordflow">goto</span> done;</div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  ++itor->bg;</div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  <span class="keywordflow">if</span> (itor->bg == model->lm3g.bigrams + base->model-><a class="code" href="structngram__model__s.html#a9dcba9b49cc1cd189b257e5838da0eee">n_counts</a>[1]) {</div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  <a class="code" href="err_8h.html#a5f7b2f58f5a663a6bdd51f197ae21993">E_ERROR</a>(<span class="stringliteral">"Trigram %d has no valid bigram parent\n"</span>,</div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  itor->tg - model->lm3g.trigrams);</div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span> </div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <span class="keywordflow">goto</span> done;</div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  }</div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  }</div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <span class="comment">/* Advance unigram pointer if necessary. */</span></div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <span class="keywordflow">while</span> (itor->bg - model->lm3g.bigrams >= itor->ug[1].<a class="code" href="structunigram__s.html#ae148f631c0d9851b14bb9cb31c0c061d">bigrams</a>) {</div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  ++itor->ug;</div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  <span class="keywordflow">if</span> (itor->ug == model->lm3g.unigrams + base->model-><a class="code" href="structngram__model__s.html#a9dcba9b49cc1cd189b257e5838da0eee">n_counts</a>[0]) {</div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  <a class="code" href="err_8h.html#a5f7b2f58f5a663a6bdd51f197ae21993">E_ERROR</a>(<span class="stringliteral">"Trigram %d has no valid unigram parent\n"</span>,</div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  itor->tg - model->lm3g.trigrams);</div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  <span class="keywordflow">goto</span> done;</div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  }</div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  }</div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <span class="keywordflow">default</span>: <span class="comment">/* Should not happen. */</span></div>
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  <span class="keywordflow">goto</span> done;</div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  }</div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span> </div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  <span class="keywordflow">return</span> (<a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *)itor;</div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span> done:</div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  <a class="code" href="ngram__model_8h.html#ac9f746c8a5db78ef8b2fb7c312be4a22">ngram_iter_free</a>(base);</div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  <span class="keywordflow">return</span> NULL;</div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span> }</div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span> </div>
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span> lm3g_template_iter_free(<a class="code" href="structngram__iter__s.html">ngram_iter_t</a> *base)</div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span> {</div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  <a class="code" href="ckd__alloc_8h.html#a31c6b405558620ac37599737b5722fbf">ckd_free</a>(base);</div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span> }</div>
<div class="ttc" id="structunigram__s_html_ad33b4af5b40a8d13ffae932bab003df6"><div class="ttname"><a href="structunigram__s.html#ad33b4af5b40a8d13ffae932bab003df6">unigram_s::bo_wt1</a></div><div class="ttdeci">lmprob_t bo_wt1</div><div class="ttdoc">Unigram backoff weight. </div><div class="ttdef"><b>Definition:</b> <a href="lm3g__model_8h_source.html#l00093">lm3g_model.h:93</a></div></div>
<div class="ttc" id="structngram__model__s_html_a616bf871a67f9cedce17d6b589ee33ea"><div class="ttname"><a href="structngram__model__s.html#a616bf871a67f9cedce17d6b589ee33ea">ngram_model_s::log_uniform</a></div><div class="ttdeci">int32 log_uniform</div><div class="ttdoc">Log of uniform (0-gram) probability. </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__internal_8h_source.html#l00070">ngram_model_internal.h:70</a></div></div>
<div class="ttc" id="structtginfo__s_html_aa151a34891820c55e0fef60cc74b6e05"><div class="ttname"><a href="structtginfo__s.html#aa151a34891820c55e0fef60cc74b6e05">tginfo_s::w1</a></div><div class="ttdeci">int32 w1</div><div class="ttdoc">lw1 component of bigram lw1,lw2. </div><div class="ttdef"><b>Definition:</b> <a href="lm3g__model_8h_source.html#l00130">lm3g_model.h:130</a></div></div>
<div class="ttc" id="ckd__alloc_8h_html_aa00ef21903bc4f8a972488417adc8d2e"><div class="ttname"><a href="ckd__alloc_8h.html#aa00ef21903bc4f8a972488417adc8d2e">ckd_calloc</a></div><div class="ttdeci">#define ckd_calloc(n, sz)</div><div class="ttdoc">Macros to simplify the use of above functions. </div><div class="ttdef"><b>Definition:</b> <a href="ckd__alloc_8h_source.html#l00248">ckd_alloc.h:248</a></div></div>
<div class="ttc" id="structngram__model__s_html_ae625e779e340845f03fb3da164e93039"><div class="ttname"><a href="structngram__model__s.html#ae625e779e340845f03fb3da164e93039">ngram_model_s::word_str</a></div><div class="ttdeci">char ** word_str</div><div class="ttdoc">Unigram names. </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__internal_8h_source.html#l00073">ngram_model_internal.h:73</a></div></div>
<div class="ttc" id="ngram__model_8h_html_ac9f746c8a5db78ef8b2fb7c312be4a22"><div class="ttname"><a href="ngram__model_8h.html#ac9f746c8a5db78ef8b2fb7c312be4a22">ngram_iter_free</a></div><div class="ttdeci">SPHINXBASE_EXPORT void ngram_iter_free(ngram_iter_t *itor)</div><div class="ttdoc">Terminate an M-gram iterator. </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model_8c_source.html#l00764">ngram_model.c:764</a></div></div>
<div class="ttc" id="listelem__alloc_8h_html_ad0c40e65d9cca0d7ec08fcf416b09af2"><div class="ttname"><a href="listelem__alloc_8h.html#ad0c40e65d9cca0d7ec08fcf416b09af2">listelem_malloc</a></div><div class="ttdeci">#define listelem_malloc(le)</div><div class="ttdoc">Allocate a list element and return pointer to it. </div><div class="ttdef"><b>Definition:</b> <a href="listelem__alloc_8h_source.html#l00086">listelem_alloc.h:86</a></div></div>
<div class="ttc" id="structngram__model__s_html_aa38c5fdecaefd9a2f43b69f26ae492c1"><div class="ttname"><a href="structngram__model__s.html#aa38c5fdecaefd9a2f43b69f26ae492c1">ngram_model_s::log_uniform_weight</a></div><div class="ttdeci">int32 log_uniform_weight</div><div class="ttdoc">Log of uniform weight (i.e. </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__internal_8h_source.html#l00071">ngram_model_internal.h:71</a></div></div>
<div class="ttc" id="structbigram__s_html"><div class="ttname"><a href="structbigram__s.html">bigram_s</a></div><div class="ttdoc">Bigram structure. </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__arpa_8h_source.html#l00052">ngram_model_arpa.h:52</a></div></div>
<div class="ttc" id="structngram__iter__s_html_a80bce30ba5b180f85ca84d7288715858"><div class="ttname"><a href="structngram__iter__s.html#a80bce30ba5b180f85ca84d7288715858">ngram_iter_s::m</a></div><div class="ttdeci">int16 m</div><div class="ttdoc">Order of history. </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__internal_8h_source.html#l00196">ngram_model_internal.h:196</a></div></div>
<div class="ttc" id="logmath_8h_html_aebb4711268322fa7aec31e5798fe7e90"><div class="ttname"><a href="logmath_8h.html#aebb4711268322fa7aec31e5798fe7e90">logmath_log</a></div><div class="ttdeci">SPHINXBASE_EXPORT int logmath_log(logmath_t *lmath, float64 p)</div><div class="ttdoc">Convert linear floating point number to integer log in base B. </div><div class="ttdef"><b>Definition:</b> <a href="logmath_8c_source.html#l00447">logmath.c:447</a></div></div>
<div class="ttc" id="structngram__model__s_html_a9dcba9b49cc1cd189b257e5838da0eee"><div class="ttname"><a href="structngram__model__s.html#a9dcba9b49cc1cd189b257e5838da0eee">ngram_model_s::n_counts</a></div><div class="ttdeci">int32 * n_counts</div><div class="ttdoc">Counts for 1, 2, 3, ... </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__internal_8h_source.html#l00057">ngram_model_internal.h:57</a></div></div>
<div class="ttc" id="structtginfo__s_html_a38d6aa51b244a7138c476a6e663ffbb4"><div class="ttname"><a href="structtginfo__s.html#a38d6aa51b244a7138c476a6e663ffbb4">tginfo_s::used</a></div><div class="ttdeci">int32 used</div><div class="ttdoc">whether used since last lm_reset </div><div class="ttdef"><b>Definition:</b> <a href="lm3g__model_8h_source.html#l00134">lm3g_model.h:134</a></div></div>
<div class="ttc" id="structtrigram__s_html_a52f3fad42f7c653a469af0c1b75988a9"><div class="ttname"><a href="structtrigram__s.html#a52f3fad42f7c653a469af0c1b75988a9">trigram_s::prob3</a></div><div class="ttdeci">uint16 prob3</div><div class="ttdoc">Index into array of actual trigram probs. </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__arpa_8h_source.html#l00068">ngram_model_arpa.h:68</a></div></div>
<div class="ttc" id="ckd__alloc_8h_html_a31c6b405558620ac37599737b5722fbf"><div class="ttname"><a href="ckd__alloc_8h.html#a31c6b405558620ac37599737b5722fbf">ckd_free</a></div><div class="ttdeci">SPHINXBASE_EXPORT void ckd_free(void *ptr)</div><div class="ttdoc">Test and free a 1-D array. </div><div class="ttdef"><b>Definition:</b> <a href="ckd__alloc_8c_source.html#l00241">ckd_alloc.c:241</a></div></div>
<div class="ttc" id="structlm3g__iter__s_html"><div class="ttname"><a href="structlm3g__iter__s.html">lm3g_iter_s</a></div><div class="ttdef"><b>Definition:</b> <a href="lm3g__templates_8c_source.html#l00280">lm3g_templates.c:280</a></div></div>
<div class="ttc" id="structunigram__s_html"><div class="ttname"><a href="structunigram__s.html">unigram_s</a></div><div class="ttdoc">Unigram structure (common among all lm3g implementations) </div><div class="ttdef"><b>Definition:</b> <a href="lm3g__model_8h_source.html#l00091">lm3g_model.h:91</a></div></div>
<div class="ttc" id="structunigram__s_html_ae148f631c0d9851b14bb9cb31c0c061d"><div class="ttname"><a href="structunigram__s.html#ae148f631c0d9851b14bb9cb31c0c061d">unigram_s::bigrams</a></div><div class="ttdeci">int32 bigrams</div><div class="ttdoc">Index of 1st entry in lm_t.bigrams[]. </div><div class="ttdef"><b>Definition:</b> <a href="lm3g__model_8h_source.html#l00094">lm3g_model.h:94</a></div></div>
<div class="ttc" id="structtginfo__s_html_a3642dc5ac56de1829665bb7d42c9372a"><div class="ttname"><a href="structtginfo__s.html#a3642dc5ac56de1829665bb7d42c9372a">tginfo_s::tg</a></div><div class="ttdeci">trigram_t * tg</div><div class="ttdoc">Trigrams for lw1,lw2. </div><div class="ttdef"><b>Definition:</b> <a href="lm3g__model_8h_source.html#l00135">lm3g_model.h:135</a></div></div>
<div class="ttc" id="structtginfo__s_html"><div class="ttname"><a href="structtginfo__s.html">tginfo_s</a></div><div class="ttdoc">Trigram information cache. </div><div class="ttdef"><b>Definition:</b> <a href="lm3g__model_8h_source.html#l00129">lm3g_model.h:129</a></div></div>
<div class="ttc" id="structtrigram__s_html"><div class="ttname"><a href="structtrigram__s.html">trigram_s</a></div><div class="ttdoc">Trigram structure. </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__arpa_8h_source.html#l00066">ngram_model_arpa.h:66</a></div></div>
<div class="ttc" id="structtginfo__s_html_a5eb046b3d09a4c80e4cdf216c6c7eb46"><div class="ttname"><a href="structtginfo__s.html#a5eb046b3d09a4c80e4cdf216c6c7eb46">tginfo_s::n_tg</a></div><div class="ttdeci">int32 n_tg</div><div class="ttdoc">number tg for parent bigram lw1,lw2 </div><div class="ttdef"><b>Definition:</b> <a href="lm3g__model_8h_source.html#l00132">lm3g_model.h:132</a></div></div>
<div class="ttc" id="structngram__model__s_html_a3c87bc1b678662a2c8930b3b8c33a80f"><div class="ttname"><a href="structngram__model__s.html#a3c87bc1b678662a2c8930b3b8c33a80f">ngram_model_s::n</a></div><div class="ttdeci">uint8 n</div><div class="ttdoc">This is an n-gram model (1, 2, 3, ...). </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__internal_8h_source.html#l00061">ngram_model_internal.h:61</a></div></div>
<div class="ttc" id="structbigram__s_html_a769b8a54f864ac4844e37cfa17ed1af0"><div class="ttname"><a href="structbigram__s.html#a769b8a54f864ac4844e37cfa17ed1af0">bigram_s::prob2</a></div><div class="ttdeci">uint16 prob2</div><div class="ttdoc">Index into array of actual bigram probs. </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__arpa_8h_source.html#l00054">ngram_model_arpa.h:54</a></div></div>
<div class="ttc" id="structngram__model__s_html_a2ca373109c651ac998b33153eb38fd95"><div class="ttname"><a href="structngram__model__s.html#a2ca373109c651ac998b33153eb38fd95">ngram_model_s::lmath</a></div><div class="ttdeci">logmath_t * lmath</div><div class="ttdoc">Log-math object. </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__internal_8h_source.html#l00066">ngram_model_internal.h:66</a></div></div>
<div class="ttc" id="structbigram__s_html_a410991054e81251285cbc209964cdaf4"><div class="ttname"><a href="structbigram__s.html#a410991054e81251285cbc209964cdaf4">bigram_s::bo_wt2</a></div><div class="ttdeci">uint16 bo_wt2</div><div class="ttdoc">Index into array of actual bigram backoff wts. </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__arpa_8h_source.html#l00055">ngram_model_arpa.h:55</a></div></div>
<div class="ttc" id="structtginfo__s_html_a184e60660a4c8168b5268260cd98ffa5"><div class="ttname"><a href="structtginfo__s.html#a184e60660a4c8168b5268260cd98ffa5">tginfo_s::next</a></div><div class="ttdeci">struct tginfo_s * next</div><div class="ttdoc">Next lw1 with same parent lw2; NULL if none. </div><div class="ttdef"><b>Definition:</b> <a href="lm3g__model_8h_source.html#l00136">lm3g_model.h:136</a></div></div>
<div class="ttc" id="structunigram__s_html_a488db9623272838a933cd4b768409fea"><div class="ttname"><a href="structunigram__s.html#a488db9623272838a933cd4b768409fea">unigram_s::prob1</a></div><div class="ttdeci">lmprob_t prob1</div><div class="ttdoc">Unigram probability. </div><div class="ttdef"><b>Definition:</b> <a href="lm3g__model_8h_source.html#l00092">lm3g_model.h:92</a></div></div>
<div class="ttc" id="logmath_8h_html_a1c160c28a9e7d25923f391773b1028c0"><div class="ttname"><a href="logmath_8h.html#a1c160c28a9e7d25923f391773b1028c0">logmath_get_zero</a></div><div class="ttdeci">SPHINXBASE_EXPORT int logmath_get_zero(logmath_t *lmath)</div><div class="ttdoc">Get the smallest possible value represented in this base. </div><div class="ttdef"><b>Definition:</b> <a href="logmath_8c_source.html#l00374">logmath.c:374</a></div></div>
<div class="ttc" id="err_8h_html_a5f7b2f58f5a663a6bdd51f197ae21993"><div class="ttname"><a href="err_8h.html#a5f7b2f58f5a663a6bdd51f197ae21993">E_ERROR</a></div><div class="ttdeci">#define E_ERROR</div><div class="ttdoc">Print error message to standard error stream. </div><div class="ttdef"><b>Definition:</b> <a href="err_8h_source.html#l00169">err.h:169</a></div></div>
<div class="ttc" id="structngram__model__s_html_a76ea0c65b23de80091e7c602bdb43bde"><div class="ttname"><a href="structngram__model__s.html#a76ea0c65b23de80091e7c602bdb43bde">ngram_model_s::lw</a></div><div class="ttdeci">float32 lw</div><div class="ttdoc">Language model scaling factor. </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__internal_8h_source.html#l00067">ngram_model_internal.h:67</a></div></div>
<div class="ttc" id="structngram__iter__s_html"><div class="ttname"><a href="structngram__iter__s.html">ngram_iter_s</a></div><div class="ttdoc">Base iterator structure for N-grams. </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__internal_8h_source.html#l00193">ngram_model_internal.h:193</a></div></div>
<div class="ttc" id="structngram__iter__s_html_a1362ebe2dcf1c441929c845fc97958cb"><div class="ttname"><a href="structngram__iter__s.html#a1362ebe2dcf1c441929c845fc97958cb">ngram_iter_s::wids</a></div><div class="ttdeci">int32 * wids</div><div class="ttdoc">Scratch space for word IDs. </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__internal_8h_source.html#l00195">ngram_model_internal.h:195</a></div></div>
<div class="ttc" id="structngram__model__s_html"><div class="ttname"><a href="structngram__model__s.html">ngram_model_s</a></div><div class="ttdoc">Common implementation of ngram_model_t. </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__internal_8h_source.html#l00055">ngram_model_internal.h:55</a></div></div>
<div class="ttc" id="structtginfo__s_html_ac5e9be48da8563941be03f3cd09e3c25"><div class="ttname"><a href="structtginfo__s.html#ac5e9be48da8563941be03f3cd09e3c25">tginfo_s::bowt</a></div><div class="ttdeci">int32 bowt</div><div class="ttdoc">tg bowt for lw1,lw2 </div><div class="ttdef"><b>Definition:</b> <a href="lm3g__model_8h_source.html#l00133">lm3g_model.h:133</a></div></div>
<div class="ttc" id="logmath_8h_html_ae8b0a168e29e448c0d6de66dc46e099e"><div class="ttname"><a href="logmath_8h.html#ae8b0a168e29e448c0d6de66dc46e099e">logmath_exp</a></div><div class="ttdeci">SPHINXBASE_EXPORT float64 logmath_exp(logmath_t *lmath, int logb_p)</div><div class="ttdoc">Convert integer log in base B to linear floating point. </div><div class="ttdef"><b>Definition:</b> <a href="logmath_8c_source.html#l00456">logmath.c:456</a></div></div>
<div class="ttc" id="structbigram__s_html_af66faad954d56f5ceaf6ba47cdcd9b1f"><div class="ttname"><a href="structbigram__s.html#af66faad954d56f5ceaf6ba47cdcd9b1f">bigram_s::wid</a></div><div class="ttdeci">uint32 wid</div><div class="ttdoc">Index of unigram entry for this. </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__arpa_8h_source.html#l00053">ngram_model_arpa.h:53</a></div></div>
<div class="ttc" id="structngram__iter__s_html_a7802a7883b1cc246b1bff629cd2cfb08"><div class="ttname"><a href="structngram__iter__s.html#a7802a7883b1cc246b1bff629cd2cfb08">ngram_iter_s::successor</a></div><div class="ttdeci">int16 successor</div><div class="ttdoc">Is this a successor iterator? </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__internal_8h_source.html#l00197">ngram_model_internal.h:197</a></div></div>
<div class="ttc" id="structngram__model__s_html_a3d6bf5632760a16e52cb881d7010d774"><div class="ttname"><a href="structngram__model__s.html#a3d6bf5632760a16e52cb881d7010d774">ngram_model_s::log_wip</a></div><div class="ttdeci">int32 log_wip</div><div class="ttdoc">Log of word insertion penalty. </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__internal_8h_source.html#l00068">ngram_model_internal.h:68</a></div></div>
<div class="ttc" id="structtrigram__s_html_a492e1fedb16fa11d26a941177c1305be"><div class="ttname"><a href="structtrigram__s.html#a492e1fedb16fa11d26a941177c1305be">trigram_s::wid</a></div><div class="ttdeci">uint32 wid</div><div class="ttdoc">Index of unigram entry for this. </div><div class="ttdef"><b>Definition:</b> <a href="ngram__model__arpa_8h_source.html#l00067">ngram_model_arpa.h:67</a></div></div>
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