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If a copy of the MPL was not distributed</span></div> <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.</span></div> <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div> <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#ifndef EIGEN_AMBIVECTOR_H</span></div> <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor"></span><span class="preprocessor">#define EIGEN_AMBIVECTOR_H</span></div> <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="keyword">namespace </span>Eigen { </div> <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> </div> <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">namespace </span>internal {</div> <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div> <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="keyword">template</span><<span class="keyword">typename</span> _Scalar, <span class="keyword">typename</span> _Index></div> <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="keyword">class </span>AmbiVector</div> <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> {</div> <div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="keyword">public</span>:</div> <div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keyword">typedef</span> _Scalar Scalar;</div> <div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="keyword">typedef</span> _Index Index;</div> <div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> NumTraits<Scalar>::Real RealScalar;</div> <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div> <div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  AmbiVector(Index size)</div> <div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  : m_buffer(0), m_zero(0), m_size(0), m_allocatedSize(0), m_allocatedElements(0), m_mode(-1)</div> <div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  {</div> <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  resize(size);</div> <div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  }</div> <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div> <div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordtype">void</span> init(<span class="keywordtype">double</span> estimatedDensity);</div> <div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordtype">void</span> init(<span class="keywordtype">int</span> mode);</div> <div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div> <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  Index nonZeros() <span class="keyword">const</span>;</div> <div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div> <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordtype">void</span> setBounds(Index start, Index end) { m_start = start; m_end = end; }</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="keywordtype">void</span> setZero();</div> <div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div> <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordtype">void</span> restart();</div> <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  Scalar& coeffRef(Index i);</div> <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  Scalar& coeff(Index i);</div> <div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div> <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">class </span>Iterator;</div> <div class="line"><a name="l00051"></a><span class="lineno"> 51</span> </div> <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  ~AmbiVector() { <span class="keyword">delete</span>[] m_buffer; }</div> <div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div> <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordtype">void</span> resize(Index size)</div> <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  {</div> <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">if</span> (m_allocatedSize < size)</div> <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  reallocate(size);</div> <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  m_size = size;</div> <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  }</div> <div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div> <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  Index size()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_size; }</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>  <span class="keyword">protected</span>:</div> <div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div> <div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordtype">void</span> reallocate(Index size)</div> <div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  {</div> <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="comment">// if the size of the matrix is not too large, let's allocate a bit more than needed such</span></div> <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">// that we can handle dense vector even in sparse mode.</span></div> <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">delete</span>[] m_buffer;</div> <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordflow">if</span> (size<1000)</div> <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  {</div> <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  Index allocSize = (size * <span class="keyword">sizeof</span>(ListEl))/<span class="keyword">sizeof</span>(Scalar);</div> <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  m_allocatedElements = (allocSize*<span class="keyword">sizeof</span>(Scalar))/<span class="keyword">sizeof</span>(ListEl);</div> <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  m_buffer = <span class="keyword">new</span> Scalar[allocSize];</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">else</span></div> <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  {</div> <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  m_allocatedElements = (size*<span class="keyword">sizeof</span>(Scalar))/<span class="keyword">sizeof</span>(ListEl);</div> <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  m_buffer = <span class="keyword">new</span> Scalar[size];</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>  m_size = size;</div> <div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  m_start = 0;</div> <div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  m_end = m_size;</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> </div> <div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordtype">void</span> reallocateSparse()</div> <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  {</div> <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  Index copyElements = m_allocatedElements;</div> <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  m_allocatedElements = (std::min)(Index(m_allocatedElements*1.5),m_size);</div> <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  Index allocSize = m_allocatedElements * <span class="keyword">sizeof</span>(ListEl);</div> <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  allocSize = allocSize/<span class="keyword">sizeof</span>(Scalar) + (allocSize%<span class="keyword">sizeof</span>(Scalar)>0?1:0);</div> <div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  Scalar* newBuffer = <span class="keyword">new</span> Scalar[allocSize];</div> <div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  memcpy(newBuffer, m_buffer, copyElements * <span class="keyword">sizeof</span>(ListEl));</div> <div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keyword">delete</span>[] m_buffer;</div> <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  m_buffer = newBuffer;</div> <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  }</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>  <span class="keyword">protected</span>:</div> <div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="comment">// element type of the linked list</span></div> <div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keyword">struct </span>ListEl</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>  Index next;</div> <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  Index index;</div> <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  Scalar value;</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> </div> <div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="comment">// used to store data in both mode</span></div> <div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  Scalar* m_buffer;</div> <div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  Scalar m_zero;</div> <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  Index m_size;</div> <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  Index m_start;</div> <div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  Index m_end;</div> <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  Index m_allocatedSize;</div> <div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  Index m_allocatedElements;</div> <div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  Index m_mode;</div> <div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div> <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="comment">// linked list mode</span></div> <div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  Index m_llStart;</div> <div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  Index m_llCurrent;</div> <div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  Index m_llSize;</div> <div class="line"><a name="l00121"></a><span class="lineno"> 121</span> };</div> <div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div> <div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="keyword">template</span><<span class="keyword">typename</span> _Scalar,<span class="keyword">typename</span> _Index></div> <div class="line"><a name="l00125"></a><span class="lineno"> 125</span> _Index AmbiVector<_Scalar,_Index>::nonZeros()<span class="keyword"> const</span></div> <div class="line"><a name="l00126"></a><span class="lineno"> 126</span> <span class="keyword"></span>{</div> <div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">if</span> (m_mode==IsSparse)</div> <div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keywordflow">return</span> m_llSize;</div> <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">return</span> m_end - m_start;</div> <div class="line"><a name="l00131"></a><span class="lineno"> 131</span> }</div> <div class="line"><a name="l00132"></a><span class="lineno"> 132</span> </div> <div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="keyword">template</span><<span class="keyword">typename</span> _Scalar,<span class="keyword">typename</span> _Index></div> <div class="line"><a name="l00134"></a><span class="lineno"> 134</span> <span class="keywordtype">void</span> AmbiVector<_Scalar,_Index>::init(<span class="keywordtype">double</span> estimatedDensity)</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="keywordflow">if</span> (estimatedDensity>0.1)</div> <div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  init(IsDense);</div> <div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  init(IsSparse);</div> <div class="line"><a name="l00140"></a><span class="lineno"> 140</span> }</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> <span class="keyword">template</span><<span class="keyword">typename</span> _Scalar,<span class="keyword">typename</span> _Index></div> <div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="keywordtype">void</span> AmbiVector<_Scalar,_Index>::init(<span class="keywordtype">int</span> mode)</div> <div class="line"><a name="l00144"></a><span class="lineno"> 144</span> {</div> <div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  m_mode = mode;</div> <div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">if</span> (m_mode==IsSparse)</div> <div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  {</div> <div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  m_llSize = 0;</div> <div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  m_llStart = -1;</div> <div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  }</div> <div class="line"><a name="l00151"></a><span class="lineno"> 151</span> }</div> <div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div> <div class="line"><a name="l00158"></a><span class="lineno"> 158</span> <span class="keyword">template</span><<span class="keyword">typename</span> _Scalar,<span class="keyword">typename</span> _Index></div> <div class="line"><a name="l00159"></a><span class="lineno"> 159</span> <span class="keywordtype">void</span> AmbiVector<_Scalar,_Index>::restart()</div> <div class="line"><a name="l00160"></a><span class="lineno"> 160</span> {</div> <div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  m_llCurrent = m_llStart;</div> <div class="line"><a name="l00162"></a><span class="lineno"> 162</span> }</div> <div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div> <div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="keyword">template</span><<span class="keyword">typename</span> _Scalar,<span class="keyword">typename</span> _Index></div> <div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <span class="keywordtype">void</span> AmbiVector<_Scalar,_Index>::setZero()</div> <div class="line"><a name="l00167"></a><span class="lineno"> 167</span> {</div> <div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">if</span> (m_mode==IsDense)</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>  <span class="keywordflow">for</span> (Index i=m_start; i<m_end; ++i)</div> <div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  m_buffer[i] = Scalar(0);</div> <div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  }</div> <div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  {</div> <div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  eigen_assert(m_mode==IsSparse);</div> <div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  m_llSize = 0;</div> <div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  m_llStart = -1;</div> <div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  }</div> <div class="line"><a name="l00179"></a><span class="lineno"> 179</span> }</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="keyword">template</span><<span class="keyword">typename</span> _Scalar,<span class="keyword">typename</span> _Index></div> <div class="line"><a name="l00182"></a><span class="lineno"> 182</span> _Scalar& AmbiVector<_Scalar,_Index>::coeffRef(_Index i)</div> <div class="line"><a name="l00183"></a><span class="lineno"> 183</span> {</div> <div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="keywordflow">if</span> (m_mode==IsDense)</div> <div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">return</span> m_buffer[i];</div> <div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  {</div> <div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  ListEl* EIGEN_RESTRICT llElements = <span class="keyword">reinterpret_cast<</span>ListEl*<span class="keyword">></span>(m_buffer);</div> <div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="comment">// TODO factorize the following code to reduce code generation</span></div> <div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  eigen_assert(m_mode==IsSparse);</div> <div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordflow">if</span> (m_llSize==0)</div> <div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  {</div> <div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="comment">// this is the first element</span></div> <div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  m_llStart = 0;</div> <div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  m_llCurrent = 0;</div> <div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  ++m_llSize;</div> <div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  llElements[0].value = Scalar(0);</div> <div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  llElements[0].index = i;</div> <div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  llElements[0].next = -1;</div> <div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordflow">return</span> llElements[0].value;</div> <div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  }</div> <div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (i<llElements[m_llStart].index)</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="comment">// this is going to be the new first element of the list</span></div> <div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  ListEl& el = llElements[m_llSize];</div> <div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  el.value = Scalar(0);</div> <div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  el.index = i;</div> <div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  el.next = m_llStart;</div> <div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  m_llStart = m_llSize;</div> <div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  ++m_llSize;</div> <div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  m_llCurrent = m_llStart;</div> <div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">return</span> el.value;</div> <div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  }</div> <div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  {</div> <div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  Index nextel = llElements[m_llCurrent].next;</div> <div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  eigen_assert(i>=llElements[m_llCurrent].index && <span class="stringliteral">"you must call restart() before inserting an element with lower or equal index"</span>);</div> <div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordflow">while</span> (nextel >= 0 && llElements[nextel].index<=i)</div> <div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  {</div> <div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  m_llCurrent = nextel;</div> <div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  nextel = llElements[nextel].next;</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="keywordflow">if</span> (llElements[m_llCurrent].index==i)</div> <div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  {</div> <div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="comment">// the coefficient already exists and we found it !</span></div> <div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <span class="keywordflow">return</span> llElements[m_llCurrent].value;</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>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  {</div> <div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="keywordflow">if</span> (m_llSize>=m_allocatedElements)</div> <div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  {</div> <div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  reallocateSparse();</div> <div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  llElements = <span class="keyword">reinterpret_cast<</span>ListEl*<span class="keyword">></span>(m_buffer);</div> <div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  }</div> <div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  eigen_internal_assert(m_llSize<m_allocatedElements && <span class="stringliteral">"internal error: overflow in sparse mode"</span>);</div> <div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="comment">// let's insert a new coefficient</span></div> <div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  ListEl& el = llElements[m_llSize];</div> <div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  el.value = Scalar(0);</div> <div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  el.index = i;</div> <div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  el.next = llElements[m_llCurrent].next;</div> <div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  llElements[m_llCurrent].next = m_llSize;</div> <div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  ++m_llSize;</div> <div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">return</span> el.value;</div> <div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  }</div> <div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  }</div> <div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  }</div> <div class="line"><a name="l00248"></a><span class="lineno"> 248</span> }</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> <span class="keyword">template</span><<span class="keyword">typename</span> _Scalar,<span class="keyword">typename</span> _Index></div> <div class="line"><a name="l00251"></a><span class="lineno"> 251</span> _Scalar& AmbiVector<_Scalar,_Index>::coeff(_Index i)</div> <div class="line"><a name="l00252"></a><span class="lineno"> 252</span> {</div> <div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keywordflow">if</span> (m_mode==IsDense)</div> <div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  <span class="keywordflow">return</span> m_buffer[i];</div> <div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  {</div> <div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  ListEl* EIGEN_RESTRICT llElements = <span class="keyword">reinterpret_cast<</span>ListEl*<span class="keyword">></span>(m_buffer);</div> <div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  eigen_assert(m_mode==IsSparse);</div> <div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keywordflow">if</span> ((m_llSize==0) || (i<llElements[m_llStart].index))</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="keywordflow">return</span> m_zero;</div> <div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  }</div> <div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keywordflow">else</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>  Index elid = m_llStart;</div> <div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="keywordflow">while</span> (elid >= 0 && llElements[elid].index<i)</div> <div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  elid = llElements[elid].next;</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>  <span class="keywordflow">if</span> (llElements[elid].index==i)</div> <div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  <span class="keywordflow">return</span> llElements[m_llCurrent].value;</div> <div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="keywordflow">return</span> m_zero;</div> <div class="line"><a name="l00273"></a><span class="lineno"> 273</span>  }</div> <div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  }</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> </div> <div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="keyword">template</span><<span class="keyword">typename</span> _Scalar,<span class="keyword">typename</span> _Index></div> <div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="keyword">class </span>AmbiVector<_Scalar,_Index>::Iterator</div> <div class="line"><a name="l00280"></a><span class="lineno"> 280</span> {</div> <div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  <span class="keyword">public</span>:</div> <div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  <span class="keyword">typedef</span> _Scalar Scalar;</div> <div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> NumTraits<Scalar>::Real RealScalar;</div> <div class="line"><a name="l00284"></a><span class="lineno"> 284</span> </div> <div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  Iterator(<span class="keyword">const</span> AmbiVector& vec, <span class="keyword">const</span> RealScalar& epsilon = 0)</div> <div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  : m_vector(vec)</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>  <span class="keyword">using</span> std::abs;</div> <div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  m_epsilon = epsilon;</div> <div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  m_isDense = m_vector.m_mode==IsDense;</div> <div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  <span class="keywordflow">if</span> (m_isDense)</div> <div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  {</div> <div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  m_currentEl = 0; <span class="comment">// this is to avoid a compilation warning</span></div> <div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  m_cachedValue = 0; <span class="comment">// this is to avoid a compilation warning</span></div> <div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  m_cachedIndex = m_vector.m_start-1;</div> <div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  ++(*this);</div> <div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  }</div> <div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  {</div> <div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  ListEl* EIGEN_RESTRICT llElements = <span class="keyword">reinterpret_cast<</span>ListEl*<span class="keyword">></span>(m_vector.m_buffer);</div> <div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  m_currentEl = m_vector.m_llStart;</div> <div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  <span class="keywordflow">while</span> (m_currentEl>=0 && abs(llElements[m_currentEl].value)<=m_epsilon)</div> <div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  m_currentEl = llElements[m_currentEl].next;</div> <div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  <span class="keywordflow">if</span> (m_currentEl<0)</div> <div class="line"><a name="l00311"></a><span class="lineno"> 311</span>  {</div> <div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  m_cachedValue = 0; <span class="comment">// this is to avoid a compilation warning</span></div> <div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  m_cachedIndex = -1;</div> <div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  }</div> <div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  {</div> <div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  m_cachedIndex = llElements[m_currentEl].index;</div> <div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  m_cachedValue = llElements[m_currentEl].value;</div> <div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  }</div> <div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  }</div> <div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  }</div> <div class="line"><a name="l00322"></a><span class="lineno"> 322</span> </div> <div class="line"><a name="l00323"></a><span class="lineno"> 323</span>  Index index()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_cachedIndex; }</div> <div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  Scalar value()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_cachedValue; }</div> <div class="line"><a name="l00325"></a><span class="lineno"> 325</span> </div> <div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keyword">operator</span> bool()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_cachedIndex>=0; }</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>  Iterator& operator++()</div> <div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  {</div> <div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  <span class="keyword">using</span> std::abs;</div> <div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  <span class="keywordflow">if</span> (m_isDense)</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">do</span> {</div> <div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  ++m_cachedIndex;</div> <div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  } <span class="keywordflow">while</span> (m_cachedIndex<m_vector.m_end && abs(m_vector.m_buffer[m_cachedIndex])<m_epsilon);</div> <div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  <span class="keywordflow">if</span> (m_cachedIndex<m_vector.m_end)</div> <div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  m_cachedValue = m_vector.m_buffer[m_cachedIndex];</div> <div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  m_cachedIndex=-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="keywordflow">else</span></div> <div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  {</div> <div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  ListEl* EIGEN_RESTRICT llElements = <span class="keyword">reinterpret_cast<</span>ListEl*<span class="keyword">></span>(m_vector.m_buffer);</div> <div class="line"><a name="l00344"></a><span class="lineno"> 344</span>  <span class="keywordflow">do</span> {</div> <div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  m_currentEl = llElements[m_currentEl].next;</div> <div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  } <span class="keywordflow">while</span> (m_currentEl>=0 && abs(llElements[m_currentEl].value)<m_epsilon);</div> <div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keywordflow">if</span> (m_currentEl<0)</div> <div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  {</div> <div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  m_cachedIndex = -1;</div> <div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  }</div> <div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <span class="keywordflow">else</span></div> <div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  {</div> <div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  m_cachedIndex = llElements[m_currentEl].index;</div> <div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  m_cachedValue = llElements[m_currentEl].value;</div> <div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  }</div> <div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  }</div> <div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordflow">return</span> *<span class="keyword">this</span>;</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="keyword">protected</span>:</div> <div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  <span class="keyword">const</span> AmbiVector& m_vector; <span class="comment">// the target vector</span></div> <div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  Index m_currentEl; <span class="comment">// the current element in sparse/linked-list mode</span></div> <div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  RealScalar m_epsilon; <span class="comment">// epsilon used to prune zero coefficients</span></div> <div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  Index m_cachedIndex; <span class="comment">// current coordinate</span></div> <div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  Scalar m_cachedValue; <span class="comment">// current value</span></div> <div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keywordtype">bool</span> m_isDense; <span class="comment">// mode of the vector</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> </div> <div class="line"><a name="l00369"></a><span class="lineno"> 369</span> } <span class="comment">// end namespace internal</span></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> } <span class="comment">// end namespace Eigen</span></div> <div class="line"><a name="l00372"></a><span class="lineno"> 372</span> </div> <div class="line"><a name="l00373"></a><span class="lineno"> 373</span> <span class="preprocessor">#endif // EIGEN_AMBIVECTOR_H</span></div> </div><!-- fragment --></div><!-- contents --> </div><!-- doc-content --> <!-- start footer part --> <div id="nav-path" class="navpath"><!-- id is needed 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