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<div class="title">matrix_market.hpp</div> </div>
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<a href="matrix__market_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#ifndef VIENNACL_IO_MATRIX_MARKET_HPP</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="preprocessor">#define VIENNACL_IO_MATRIX_MARKET_HPP</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> </div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">/* =========================================================================</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> Copyright (c) 2010-2016, Institute for Microelectronics,</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> Institute for Analysis and Scientific Computing,</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> TU Wien.</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> Portions of this software are copyright by UChicago Argonne, LLC.</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"> -----------------</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> ViennaCL - The Vienna Computing Library</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"></span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> Project Head: Karl Rupp rupp@iue.tuwien.ac.at</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"></span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> (A list of authors and contributors can be found in the manual)</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"> License: MIT (X11), see file LICENSE in the base directory</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">============================================================================= */</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <algorithm></span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <string></span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <iostream></span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <fstream></span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <sstream></span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <vector></span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <map></span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <cctype></span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include "<a class="code" href="adapter_8hpp.html">viennacl/tools/adapter.hpp</a>"</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include "<a class="code" href="size_8hpp.html">viennacl/traits/size.hpp</a>"</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include "<a class="code" href="fill_8hpp.html">viennacl/traits/fill.hpp</a>"</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">namespace </span>viennacl</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> {</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">namespace </span>io</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="comment">//helper</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">namespace </span>detail</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> {</div>
<div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="namespaceviennacl_1_1io_1_1detail.html#a841f763e150a198a8ef668e3b894edf0"> 45</a></span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="namespaceviennacl_1_1io_1_1detail.html#a841f763e150a198a8ef668e3b894edf0">trim</a>(<span class="keywordtype">char</span> * buffer, <span class="keywordtype">long</span> max_size)</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  {</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="comment">//trim at beginning of string</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordtype">long</span> <a class="code" href="namespaceviennacl_1_1traits.html#a68603a1e1ca1bfb6d107831ba5096786">start</a> = 0;</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">for</span> (<span class="keywordtype">long</span> i=0; i<max_size; ++i)</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="keywordflow">if</span> (buffer[i] == <span class="charliteral">' '</span>)</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  ++<a class="code" href="namespaceviennacl_1_1traits.html#a68603a1e1ca1bfb6d107831ba5096786">start</a>;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keywordflow">break</span>;</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> </div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="comment">//trim at end of string</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordtype">long</span> stop = <a class="code" href="namespaceviennacl_1_1traits.html#a68603a1e1ca1bfb6d107831ba5096786">start</a>;</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">for</span> (<span class="keywordtype">long</span> i=stop; i<max_size; ++i)</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>  <span class="keywordflow">if</span> (buffer[i] == 0) <span class="comment">//end of string</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keywordflow">break</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="keywordflow">if</span> (buffer[i] != <span class="charliteral">' '</span>)</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  stop = i;</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> </div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordflow">for</span> (<span class="keywordtype">long</span> i=0; i<=stop - <a class="code" href="namespaceviennacl_1_1traits.html#a68603a1e1ca1bfb6d107831ba5096786">start</a>; ++i)</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  {</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  buffer[i] = buffer[start + i];</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> </div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">if</span> (buffer[0] != <span class="charliteral">' '</span>)</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  buffer[stop - start + 1] = 0; <span class="comment">//terminate string</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  buffer[0] = 0;</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> </div>
<div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="namespaceviennacl_1_1io_1_1detail.html#ae5f510209d102f046068f7ed95ab4e98"> 79</a></span>  <span class="keyword">inline</span> std::string <a class="code" href="namespaceviennacl_1_1io_1_1detail.html#ae5f510209d102f046068f7ed95ab4e98">tolower</a>(std::string & s)</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>  std::transform(s.begin(), s.end(), s.begin(), static_cast < int(*)(int) > (<a class="code" href="namespaceviennacl_1_1io_1_1detail.html#ae5f510209d102f046068f7ed95ab4e98">std::tolower</a>));</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">return</span> s;</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  }</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> </div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> } <span class="comment">//namespace</span></div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> </div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="keyword">template</span><<span class="keyword">typename</span> MatrixT></div>
<div class="line"><a name="l00102"></a><span class="lineno"><a class="line" href="namespaceviennacl_1_1io.html#a23fae39a4ce6ae7e00736a0a29f585ee"> 102</a></span> <span class="keywordtype">long</span> <a class="code" href="namespaceviennacl_1_1io.html#a23fae39a4ce6ae7e00736a0a29f585ee">read_matrix_market_file_impl</a>(MatrixT & mat,</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> * file,</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordtype">long</span> index_base)</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="keyword">typedef</span> <span class="keyword">typename</span> <a class="code" href="structviennacl_1_1result__of_1_1cpu__value__type.html">viennacl::result_of::cpu_value_type<typename viennacl::result_of::value_type<MatrixT>::type</a>>::type ScalarT;</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> </div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="comment">//std::cout << "Reading matrix market file" << std::endl;</span></div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordtype">char</span> buffer[1025];</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  std::ifstream reader(file);</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  std::string token;</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordtype">long</span> linenum = 0;</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordtype">bool</span> symmetric = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordtype">bool</span> dense_format = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordtype">bool</span> is_header = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordtype">bool</span> pattern_matrix = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="comment">//bool is_complex = false;</span></div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keywordtype">long</span> cur_row = 0;</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keywordtype">long</span> cur_col = 0;</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">long</span> valid_entries = 0;</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keywordtype">long</span> nnz = 0;</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordflow">if</span> (!reader){</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  std::cerr << <span class="stringliteral">"ViennaCL: Matrix Market Reader: Cannot open file "</span> << file << std::endl;</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">return</span> EXIT_FAILURE;</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  }</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keywordflow">while</span> (reader.good())</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  {</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="comment">// get a non-empty line</span></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">do</span></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>  reader.getline(buffer, 1024);</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  ++linenum;</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <a class="code" href="namespaceviennacl_1_1io_1_1detail.html#a841f763e150a198a8ef668e3b894edf0">detail::trim</a>(buffer, 1024);</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  }</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">while</span> (reader.good() && buffer[0] == 0);</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>  <span class="keywordflow">if</span> (buffer[0] == <span class="charliteral">'%'</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="keywordflow">if</span> (buffer[1] == <span class="charliteral">'%'</span>)</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  {</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="comment">//parse header:</span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  std::stringstream line(std::string(buffer + 2));</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  line >> token;</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">if</span> (<a class="code" href="namespaceviennacl_1_1io_1_1detail.html#ae5f510209d102f046068f7ed95ab4e98">detail::tolower</a>(token) != <span class="stringliteral">"matrixmarket"</span>)</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  {</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  std::cerr << <span class="stringliteral">"Error in file "</span> << file << <span class="stringliteral">" at line "</span> << linenum << <span class="stringliteral">" in file "</span> << file << <span class="stringliteral">": Expected 'MatrixMarket', got '"</span> << token << <span class="stringliteral">"'"</span> << std::endl;</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">return</span> 0;</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="l00153"></a><span class="lineno"> 153</span>  line >> token;</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordflow">if</span> (<a class="code" href="namespaceviennacl_1_1io_1_1detail.html#ae5f510209d102f046068f7ed95ab4e98">detail::tolower</a>(token) != <span class="stringliteral">"matrix"</span>)</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  {</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  std::cerr << <span class="stringliteral">"Error in file "</span> << file << <span class="stringliteral">" at line "</span> << linenum << <span class="stringliteral">" in file "</span> << file << <span class="stringliteral">": Expected 'matrix', got '"</span> << token << <span class="stringliteral">"'"</span> << std::endl;</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  }</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  line >> token;</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">if</span> (<a class="code" href="namespaceviennacl_1_1io_1_1detail.html#ae5f510209d102f046068f7ed95ab4e98">detail::tolower</a>(token) != <span class="stringliteral">"coordinate"</span>)</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>  <span class="keywordflow">if</span> (<a class="code" href="namespaceviennacl_1_1io_1_1detail.html#ae5f510209d102f046068f7ed95ab4e98">detail::tolower</a>(token) == <span class="stringliteral">"array"</span>)</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  {</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  dense_format = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  std::cerr << <span class="stringliteral">"Error in file "</span> << file << <span class="stringliteral">" at line "</span> << linenum << <span class="stringliteral">" in file "</span> << file << <span class="stringliteral">": 'array' type is not supported yet!"</span> << std::endl;</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  }</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  {</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  std::cerr << <span class="stringliteral">"Error in file "</span> << file << <span class="stringliteral">" at line "</span> << linenum << <span class="stringliteral">" in file "</span> << file << <span class="stringliteral">": Expected 'array' or 'coordinate', got '"</span> << token << <span class="stringliteral">"'"</span> << std::endl;</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</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> </div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  line >> token;</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keywordflow">if</span> (<a class="code" href="namespaceviennacl_1_1io_1_1detail.html#ae5f510209d102f046068f7ed95ab4e98">detail::tolower</a>(token) == <span class="stringliteral">"pattern"</span>)</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>  pattern_matrix = <span class="keyword">true</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="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="namespaceviennacl_1_1io_1_1detail.html#ae5f510209d102f046068f7ed95ab4e98">detail::tolower</a>(token) == <span class="stringliteral">"complex"</span>)</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  {</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="comment">//is_complex = true;</span></div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  }</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="namespaceviennacl_1_1io_1_1detail.html#ae5f510209d102f046068f7ed95ab4e98">detail::tolower</a>(token) != <span class="stringliteral">"real"</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>  std::cerr << <span class="stringliteral">"Error in file "</span> << file << <span class="stringliteral">": The MatrixMarket reader provided with ViennaCL supports only real valued floating point arithmetic or pattern type matrices."</span> << std::endl;</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  }</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> </div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  line >> token;</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordflow">if</span> (<a class="code" href="namespaceviennacl_1_1io_1_1detail.html#ae5f510209d102f046068f7ed95ab4e98">detail::tolower</a>(token) == <span class="stringliteral">"general"</span>){ }</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="namespaceviennacl_1_1io_1_1detail.html#ae5f510209d102f046068f7ed95ab4e98">detail::tolower</a>(token) == <span class="stringliteral">"symmetric"</span>){ symmetric = <span class="keyword">true</span>; }</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  {</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  std::cerr << <span class="stringliteral">"Error in file "</span> << file << <span class="stringliteral">": The MatrixMarket reader provided with ViennaCL supports only general or symmetric matrices."</span> << std::endl;</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  }</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>  }</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">else</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>  std::stringstream line(std::stringstream::in | std::stringstream::out);</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  line << std::string(buffer);</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span> </div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">if</span> (is_header)</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>  <span class="comment">//read header line</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <a class="code" href="namespaceviennacl.html#a98a0afcc513111ffa0bd138f891930df">vcl_size_t</a> rows;</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <a class="code" href="namespaceviennacl.html#a98a0afcc513111ffa0bd138f891930df">vcl_size_t</a> cols;</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> </div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">if</span> (line.good())</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  line >> rows;</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  {</div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  std::cerr << <span class="stringliteral">"Error in file "</span> << file << <span class="stringliteral">": Could not get matrix dimensions (rows) in line "</span> << linenum << std::endl;</div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordflow">return</span> 0;</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> </div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="keywordflow">if</span> (line.good())</div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  line >> cols;</div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  {</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  std::cerr << <span class="stringliteral">"Error in file "</span> << file << <span class="stringliteral">": Could not get matrix dimensions (columns) in line "</span> << linenum << std::endl;</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  }</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keywordflow">if</span> (!dense_format)</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  {</div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="keywordflow">if</span> (line.good())</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  line >> nnz;</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  {</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  std::cerr << <span class="stringliteral">"Error in file "</span> << file << <span class="stringliteral">": Could not get matrix dimensions (columns) in line "</span> << linenum << std::endl;</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  }</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  }</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span> </div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordflow">if</span> (rows > 0 && cols > 0)</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <a class="code" href="namespaceviennacl_1_1traits.html#a20c289ba1c097b76963a280d18362ecf">viennacl::traits::resize</a>(mat, rows, cols);</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span> </div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  is_header = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  }</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keywordflow">else</span></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>  <span class="comment">//read data</span></div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <span class="keywordflow">if</span> (dense_format)</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>  ScalarT value;</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  line >> value;</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  <a class="code" href="namespaceviennacl_1_1traits.html#ac6e0912a2430af1f2834d9d88915efed">viennacl::traits::fill</a>(mat, static_cast<vcl_size_t>(cur_row), static_cast<vcl_size_t>(cur_col), value);</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> (++cur_row == static_cast<long>(<a class="code" href="namespaceviennacl_1_1traits.html#aa756f5d6820722094cae0d8b9bb6d5e2">viennacl::traits::size1</a>(mat)))</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  {</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="comment">//next column</span></div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  ++cur_col;</div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  cur_row = 0;</div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  }</div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  }</div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  <span class="keywordflow">else</span> <span class="comment">//sparse format</span></div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  {</div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keywordtype">long</span> <a class="code" href="namespaceviennacl.html#a0a574e6cd04ca0e42298b4ab845700e4">row</a>;</div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keywordtype">long</span> col;</div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  ScalarT value = ScalarT(1);</div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span> </div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  <span class="comment">//parse data:</span></div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  <span class="keywordflow">if</span> (line.good())</div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  line >> row;</div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  {</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  std::cerr << <span class="stringliteral">"Error in file "</span> << file << <span class="stringliteral">": Parse error for matrix row entry in line "</span> << linenum << std::endl;</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  <span class="keywordflow">return</span> 0;</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>  <span class="keywordflow">if</span> (line.good())</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>  line >> col;</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>  <span class="keywordflow">else</span></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>  std::cerr << <span class="stringliteral">"Error in file "</span> << file << <span class="stringliteral">": Parse error for matrix col entry in line "</span> << linenum << std::endl;</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  }</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span> </div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  <span class="comment">//take index_base base into account:</span></div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  row -= index_base;</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>  col -= index_base;</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="keywordflow">if</span> (!pattern_matrix) <span class="comment">// value for pattern matrix is implicitly 1, so we only need to read data for 'normal' matrices</span></div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>  {</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keywordflow">if</span> (line.good())</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>  line >> value;</div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  }</div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>  {</div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>  std::cerr << <span class="stringliteral">"Error in file "</span> << file << <span class="stringliteral">": Parse error for matrix entry in line "</span> << linenum << std::endl;</div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  }</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> </div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  <span class="keywordflow">if</span> (row >= static_cast<long>(<a class="code" href="namespaceviennacl_1_1traits.html#aa756f5d6820722094cae0d8b9bb6d5e2">viennacl::traits::size1</a>(mat)) || row < 0)</div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  {</div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>  std::cerr << <span class="stringliteral">"Error in file "</span> << file << <span class="stringliteral">" at line "</span> << linenum << <span class="stringliteral">": Row index out of bounds: "</span> << row << <span class="stringliteral">" (matrix dim: "</span> << <a class="code" href="namespaceviennacl_1_1traits.html#aa756f5d6820722094cae0d8b9bb6d5e2">viennacl::traits::size1</a>(mat) << <span class="stringliteral">" x "</span> << <a class="code" href="namespaceviennacl_1_1traits.html#a3658e7c29ac0f60a20cb5871f5b5fd98">viennacl::traits::size2</a>(mat) << <span class="stringliteral">")"</span> << std::endl;</div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</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>  <span class="keywordflow">if</span> (col >= static_cast<long>(<a class="code" href="namespaceviennacl_1_1traits.html#a3658e7c29ac0f60a20cb5871f5b5fd98">viennacl::traits::size2</a>(mat)) || col < 0)</div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  {</div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>  std::cerr << <span class="stringliteral">"Error in file "</span> << file << <span class="stringliteral">" at line "</span> << linenum << <span class="stringliteral">": Column index out of bounds: "</span> << col << <span class="stringliteral">" (matrix dim: "</span> << <a class="code" href="namespaceviennacl_1_1traits.html#aa756f5d6820722094cae0d8b9bb6d5e2">viennacl::traits::size1</a>(mat) << <span class="stringliteral">" x "</span> << <a class="code" href="namespaceviennacl_1_1traits.html#a3658e7c29ac0f60a20cb5871f5b5fd98">viennacl::traits::size2</a>(mat) << <span class="stringliteral">")"</span> << std::endl;</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>  }</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>  <a class="code" href="namespaceviennacl_1_1traits.html#ac6e0912a2430af1f2834d9d88915efed">viennacl::traits::fill</a>(mat, static_cast<vcl_size_t>(row), static_cast<vcl_size_t>(col), value); <span class="comment">//basically equivalent to mat(row, col) = value;</span></div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="keywordflow">if</span> (symmetric)</div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>  <a class="code" href="namespaceviennacl_1_1traits.html#ac6e0912a2430af1f2834d9d88915efed">viennacl::traits::fill</a>(mat, static_cast<vcl_size_t>(col), static_cast<vcl_size_t>(row), value); <span class="comment">//basically equivalent to mat(col, row) = value;</span></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">if</span> (++valid_entries == nnz)</div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span> </div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  } <span class="comment">//else dense_format</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> </div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>  <span class="comment">//std::cout << linenum << " lines read." << std::endl;</span></div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  reader.close();</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keywordflow">return</span> linenum;</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> </div>
<div class="line"><a name="l00338"></a><span class="lineno"> 338</span> <span class="keyword">template</span><<span class="keyword">typename</span> MatrixT></div>
<div class="line"><a name="l00339"></a><span class="lineno"><a class="line" href="namespaceviennacl_1_1io.html#ad934125ed3dbe661e264bcd7d62b1048"> 339</a></span> <span class="keywordtype">long</span> <a class="code" href="namespaceviennacl_1_1io.html#ad934125ed3dbe661e264bcd7d62b1048">read_matrix_market_file</a>(MatrixT & mat,</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> * file,</div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  <span class="keywordtype">long</span> index_base = 1)</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>  <span class="keywordflow">return</span> <a class="code" href="namespaceviennacl_1_1io.html#a23fae39a4ce6ae7e00736a0a29f585ee">read_matrix_market_file_impl</a>(mat, file, index_base);</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span> }</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span> </div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span> <span class="keyword">template</span><<span class="keyword">typename</span> MatrixT></div>
<div class="line"><a name="l00347"></a><span class="lineno"><a class="line" href="namespaceviennacl_1_1io.html#a1ca9d47b6dbd62ff5b21190e5d604a51"> 347</a></span> <span class="keywordtype">long</span> <a class="code" href="namespaceviennacl_1_1io.html#ad934125ed3dbe661e264bcd7d62b1048">read_matrix_market_file</a>(MatrixT & mat,</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  <span class="keyword">const</span> std::string & file,</div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <span class="keywordtype">long</span> index_base = 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">return</span> <a class="code" href="namespaceviennacl_1_1io.html#a23fae39a4ce6ae7e00736a0a29f585ee">read_matrix_market_file_impl</a>(mat, file.c_str(), index_base);</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> </div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span> <span class="keyword">template</span><<span class="keyword">typename</span> ScalarT></div>
<div class="line"><a name="l00355"></a><span class="lineno"><a class="line" href="namespaceviennacl_1_1io.html#afdd4992be98b4dafe16561ee660e50c7"> 355</a></span> <span class="keywordtype">long</span> <a class="code" href="namespaceviennacl_1_1io.html#ad934125ed3dbe661e264bcd7d62b1048">read_matrix_market_file</a>(std::vector< std::map<unsigned int, ScalarT> > & mat,</div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> * file,</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordtype">long</span> index_base = 1)</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>  <a class="code" href="classviennacl_1_1tools_1_1sparse__matrix__adapter.html">viennacl::tools::sparse_matrix_adapter<ScalarT></a> adapted_matrix(mat);</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceviennacl_1_1io.html#a23fae39a4ce6ae7e00736a0a29f585ee">read_matrix_market_file_impl</a>(adapted_matrix, file, index_base);</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span> }</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span> </div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span> <span class="keyword">template</span><<span class="keyword">typename</span> ScalarT></div>
<div class="line"><a name="l00364"></a><span class="lineno"><a class="line" href="namespaceviennacl_1_1io.html#a2154ce66dd922c41a0399b08595f5cef"> 364</a></span> <span class="keywordtype">long</span> <a class="code" href="namespaceviennacl_1_1io.html#ad934125ed3dbe661e264bcd7d62b1048">read_matrix_market_file</a>(std::vector< std::map<unsigned int, ScalarT> > & mat,</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  <span class="keyword">const</span> std::string & file,</div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keywordtype">long</span> index_base = 1)</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>  <a class="code" href="classviennacl_1_1tools_1_1sparse__matrix__adapter.html">viennacl::tools::sparse_matrix_adapter<ScalarT></a> adapted_matrix(mat);</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceviennacl_1_1io.html#a23fae39a4ce6ae7e00736a0a29f585ee">read_matrix_market_file_impl</a>(adapted_matrix, file.c_str(), index_base);</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> </div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span> </div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span> <span class="keyword">template</span><<span class="keyword">typename</span> MatrixT></div>
<div class="line"><a name="l00375"></a><span class="lineno"><a class="line" href="namespaceviennacl_1_1io.html#aceb24cd9d27f0def009a5b0e41c31021"> 375</a></span> <span class="keywordtype">void</span> <a class="code" href="namespaceviennacl_1_1io.html#aceb24cd9d27f0def009a5b0e41c31021">write_matrix_market_file_impl</a>(MatrixT <span class="keyword">const</span> & mat, <span class="keyword">const</span> <span class="keywordtype">char</span> * file, <span class="keywordtype">long</span> index_base)</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span> {</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  std::ofstream writer(file);</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="keywordtype">long</span> num_entries = 0;</div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <span class="keywordflow">for</span> (<span class="keyword">typename</span> MatrixT::const_iterator1 row_it = mat.begin1();</div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  row_it != mat.end1();</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  ++row_it)</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  <span class="keywordflow">for</span> (<span class="keyword">typename</span> MatrixT::const_iterator2 col_it = row_it.begin();</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  col_it != row_it.end();</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  ++col_it)</div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  ++num_entries;</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span> </div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  writer << <span class="stringliteral">"%%MatrixMarket matrix coordinate real general"</span> << std::endl;</div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  writer << mat.size1() << <span class="stringliteral">" "</span> << mat.size2() << <span class="stringliteral">" "</span> << num_entries << std::endl;</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>  <span class="keywordflow">for</span> (<span class="keyword">typename</span> MatrixT::const_iterator1 row_it = mat.begin1();</div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  row_it != mat.end1();</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  ++row_it)</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <span class="keywordflow">for</span> (<span class="keyword">typename</span> MatrixT::const_iterator2 col_it = row_it.begin();</div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  col_it != row_it.end();</div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  ++col_it)</div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  writer << col_it.index1() + index_base << <span class="stringliteral">" "</span> << col_it.index2() + index_base << <span class="stringliteral">" "</span> << *col_it << std::endl;</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span> </div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  writer.close();</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span> }</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> <span class="keyword">template</span><<span class="keyword">typename</span> ScalarT></div>
<div class="line"><a name="l00403"></a><span class="lineno"><a class="line" href="namespaceviennacl_1_1io.html#aa5412349a849ee0f9e68e2f93e0af987"> 403</a></span> <span class="keywordtype">void</span> <a class="code" href="namespaceviennacl_1_1io.html#aa5412349a849ee0f9e68e2f93e0af987">write_matrix_market_file</a>(std::vector< std::map<unsigned int, ScalarT> > <span class="keyword">const</span> & mat,</div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keyword">const</span> <span class="keywordtype">char</span> * file,</div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <span class="keywordtype">long</span> index_base = 1)</div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span> {</div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <a class="code" href="classviennacl_1_1tools_1_1const__sparse__matrix__adapter.html">viennacl::tools::const_sparse_matrix_adapter<ScalarT></a> adapted_matrix(mat);</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceviennacl_1_1io.html#aceb24cd9d27f0def009a5b0e41c31021">write_matrix_market_file_impl</a>(adapted_matrix, file, index_base);</div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span> }</div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span> </div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span> <span class="keyword">template</span><<span class="keyword">typename</span> ScalarT></div>
<div class="line"><a name="l00412"></a><span class="lineno"><a class="line" href="namespaceviennacl_1_1io.html#afcf964aa43d02df697f48209aaf0d8fd"> 412</a></span> <span class="keywordtype">void</span> <a class="code" href="namespaceviennacl_1_1io.html#aa5412349a849ee0f9e68e2f93e0af987">write_matrix_market_file</a>(std::vector< std::map<unsigned int, ScalarT> > <span class="keyword">const</span> & mat,</div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>  <span class="keyword">const</span> std::string & file,</div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="keywordtype">long</span> index_base = 1)</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span> {</div>
<div class="line"><a name="l00416"></a><span class="lineno"> 416</span>  <a class="code" href="classviennacl_1_1tools_1_1const__sparse__matrix__adapter.html">viennacl::tools::const_sparse_matrix_adapter<ScalarT></a> adapted_matrix(mat);</div>
<div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="keywordflow">return</span> <a class="code" href="namespaceviennacl_1_1io.html#aceb24cd9d27f0def009a5b0e41c31021">write_matrix_market_file_impl</a>(adapted_matrix, file.c_str(), index_base);</div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span> }</div>
<div class="line"><a name="l00419"></a><span class="lineno"> 419</span> </div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span> <span class="keyword">template</span><<span class="keyword">typename</span> MatrixT></div>
<div class="line"><a name="l00429"></a><span class="lineno"><a class="line" href="namespaceviennacl_1_1io.html#a6b2fd79d7ec50b0c4ae3d858a843a693"> 429</a></span> <span class="keywordtype">void</span> <a class="code" href="namespaceviennacl_1_1io.html#aa5412349a849ee0f9e68e2f93e0af987">write_matrix_market_file</a>(MatrixT <span class="keyword">const</span> & mat,</div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="keyword">const</span> std::string & file,</div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="keywordtype">long</span> index_base = 1)</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span> {</div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <a class="code" href="namespaceviennacl_1_1io.html#aceb24cd9d27f0def009a5b0e41c31021">write_matrix_market_file_impl</a>(mat, file.c_str(), index_base);</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span> }</div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span> </div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span> </div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span> } <span class="comment">//namespace io</span></div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span> } <span class="comment">//namespace viennacl</span></div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span> </div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span> <span class="preprocessor">#endif</span></div>
<div class="ttc" id="namespaceviennacl_1_1traits_html_ac6e0912a2430af1f2834d9d88915efed"><div class="ttname"><a href="namespaceviennacl_1_1traits.html#ac6e0912a2430af1f2834d9d88915efed">viennacl::traits::fill</a></div><div class="ttdeci">void fill(MatrixType &matrix, vcl_size_t row_index, vcl_size_t col_index, NumericT value)</div><div class="ttdoc">Generic filler routine for setting an entry of a matrix to a particular value. </div><div class="ttdef"><b>Definition:</b> <a href="fill_8hpp_source.html#l00046">fill.hpp:46</a></div></div>
<div class="ttc" id="namespaceviennacl_1_1io_1_1detail_html_a841f763e150a198a8ef668e3b894edf0"><div class="ttname"><a href="namespaceviennacl_1_1io_1_1detail.html#a841f763e150a198a8ef668e3b894edf0">viennacl::io::detail::trim</a></div><div class="ttdeci">void trim(char *buffer, long max_size)</div><div class="ttdef"><b>Definition:</b> <a href="matrix__market_8hpp_source.html#l00045">matrix_market.hpp:45</a></div></div>
<div class="ttc" id="adapter_8hpp_html"><div class="ttname"><a href="adapter_8hpp.html">adapter.hpp</a></div><div class="ttdoc">Adapter classes for sparse matrices made of the STL type std::vector<std::map<SizeT, NumericT> > </div></div>
<div class="ttc" id="size_8hpp_html"><div class="ttname"><a href="size_8hpp.html">size.hpp</a></div><div class="ttdoc">Generic size and resize functionality for different vector and matrix types. </div></div>
<div class="ttc" id="namespaceviennacl_1_1traits_html_aa756f5d6820722094cae0d8b9bb6d5e2"><div class="ttname"><a href="namespaceviennacl_1_1traits.html#aa756f5d6820722094cae0d8b9bb6d5e2">viennacl::traits::size1</a></div><div class="ttdeci">vcl_size_t size1(MatrixType const &mat)</div><div class="ttdoc">Generic routine for obtaining the number of rows of a matrix (ViennaCL, uBLAS, etc.) </div><div class="ttdef"><b>Definition:</b> <a href="size_8hpp_source.html#l00163">size.hpp:163</a></div></div>
<div class="ttc" id="namespaceviennacl_1_1io_html_aceb24cd9d27f0def009a5b0e41c31021"><div class="ttname"><a href="namespaceviennacl_1_1io.html#aceb24cd9d27f0def009a5b0e41c31021">viennacl::io::write_matrix_market_file_impl</a></div><div class="ttdeci">void write_matrix_market_file_impl(MatrixT const &mat, const char *file, long index_base)</div><div class="ttdef"><b>Definition:</b> <a href="matrix__market_8hpp_source.html#l00375">matrix_market.hpp:375</a></div></div>
<div class="ttc" id="namespaceviennacl_1_1traits_html_a3658e7c29ac0f60a20cb5871f5b5fd98"><div class="ttname"><a href="namespaceviennacl_1_1traits.html#a3658e7c29ac0f60a20cb5871f5b5fd98">viennacl::traits::size2</a></div><div class="ttdeci">result_of::size_type< MatrixType >::type size2(MatrixType const &mat)</div><div class="ttdoc">Generic routine for obtaining the number of columns of a matrix (ViennaCL, uBLAS, etc...</div><div class="ttdef"><b>Definition:</b> <a href="size_8hpp_source.html#l00201">size.hpp:201</a></div></div>
<div class="ttc" id="namespaceviennacl_1_1io_html_aa5412349a849ee0f9e68e2f93e0af987"><div class="ttname"><a href="namespaceviennacl_1_1io.html#aa5412349a849ee0f9e68e2f93e0af987">viennacl::io::write_matrix_market_file</a></div><div class="ttdeci">void write_matrix_market_file(std::vector< std::map< unsigned int, ScalarT > > const &mat, const char *file, long index_base=1)</div><div class="ttdef"><b>Definition:</b> <a href="matrix__market_8hpp_source.html#l00403">matrix_market.hpp:403</a></div></div>
<div class="ttc" id="namespaceviennacl_1_1io_1_1detail_html_ae5f510209d102f046068f7ed95ab4e98"><div class="ttname"><a href="namespaceviennacl_1_1io_1_1detail.html#ae5f510209d102f046068f7ed95ab4e98">viennacl::io::detail::tolower</a></div><div class="ttdeci">std::string tolower(std::string &s)</div><div class="ttdef"><b>Definition:</b> <a href="matrix__market_8hpp_source.html#l00079">matrix_market.hpp:79</a></div></div>
<div class="ttc" id="namespaceviennacl_1_1traits_html_a20c289ba1c097b76963a280d18362ecf"><div class="ttname"><a href="namespaceviennacl_1_1traits.html#a20c289ba1c097b76963a280d18362ecf">viennacl::traits::resize</a></div><div class="ttdeci">void resize(MatrixType &matrix, vcl_size_t rows, vcl_size_t cols)</div><div class="ttdoc">Generic resize routine for resizing a matrix (ViennaCL, uBLAS, etc.) to a new size/dimension. </div><div class="ttdef"><b>Definition:</b> <a href="size_8hpp_source.html#l00063">size.hpp:63</a></div></div>
<div class="ttc" id="namespaceviennacl_1_1traits_html_a68603a1e1ca1bfb6d107831ba5096786"><div class="ttname"><a href="namespaceviennacl_1_1traits.html#a68603a1e1ca1bfb6d107831ba5096786">viennacl::traits::start</a></div><div class="ttdeci">result_of::size_type< T >::type start(T const &obj)</div><div class="ttdef"><b>Definition:</b> <a href="start_8hpp_source.html#l00044">start.hpp:44</a></div></div>
<div class="ttc" id="fill_8hpp_html"><div class="ttname"><a href="fill_8hpp.html">fill.hpp</a></div><div class="ttdoc">Generic fill functionality for different matrix types. </div></div>
<div class="ttc" id="classviennacl_1_1tools_1_1const__sparse__matrix__adapter_html"><div class="ttname"><a href="classviennacl_1_1tools_1_1const__sparse__matrix__adapter.html">viennacl::tools::const_sparse_matrix_adapter</a></div><div class="ttdoc">Adapts a constant sparse matrix type made up from std::vector<std::map<SizeT, NumericT> > to basic ub...</div><div class="ttdef"><b>Definition:</b> <a href="adapter_8hpp_source.html#l00183">adapter.hpp:183</a></div></div>
<div class="ttc" id="namespaceviennacl_html_a98a0afcc513111ffa0bd138f891930df"><div class="ttname"><a href="namespaceviennacl.html#a98a0afcc513111ffa0bd138f891930df">viennacl::vcl_size_t</a></div><div class="ttdeci">std::size_t vcl_size_t</div><div class="ttdef"><b>Definition:</b> <a href="forwards_8h_source.html#l00075">forwards.h:75</a></div></div>
<div class="ttc" id="namespaceviennacl_1_1io_html_a23fae39a4ce6ae7e00736a0a29f585ee"><div class="ttname"><a href="namespaceviennacl_1_1io.html#a23fae39a4ce6ae7e00736a0a29f585ee">viennacl::io::read_matrix_market_file_impl</a></div><div class="ttdeci">long read_matrix_market_file_impl(MatrixT &mat, const char *file, long index_base)</div><div class="ttdoc">Reads a sparse or dense matrix from a file (MatrixMarket format) </div><div class="ttdef"><b>Definition:</b> <a href="matrix__market_8hpp_source.html#l00102">matrix_market.hpp:102</a></div></div>
<div class="ttc" id="namespaceviennacl_html_a0a574e6cd04ca0e42298b4ab845700e4"><div class="ttname"><a href="namespaceviennacl.html#a0a574e6cd04ca0e42298b4ab845700e4">viennacl::row</a></div><div class="ttdeci">vector_expression< const matrix_base< NumericT, F >, const unsigned int, op_row > row(const matrix_base< NumericT, F > &A, unsigned int i)</div><div class="ttdef"><b>Definition:</b> <a href="matrix_8hpp_source.html#l00910">matrix.hpp:910</a></div></div>
<div class="ttc" id="structviennacl_1_1result__of_1_1cpu__value__type_html"><div class="ttname"><a href="structviennacl_1_1result__of_1_1cpu__value__type.html">viennacl::result_of::cpu_value_type</a></div><div class="ttdoc">Helper meta function for retrieving the main RAM-based value type. Particularly important to obtain T...</div><div class="ttdef"><b>Definition:</b> <a href="result__of_8hpp_source.html#l00269">result_of.hpp:269</a></div></div>
<div class="ttc" id="classviennacl_1_1tools_1_1sparse__matrix__adapter_html"><div class="ttname"><a href="classviennacl_1_1tools_1_1sparse__matrix__adapter.html">viennacl::tools::sparse_matrix_adapter</a></div><div class="ttdoc">Adapts a non-const sparse matrix type made up from std::vector<std::map<SizeT, NumericT> > to basic u...</div><div class="ttdef"><b>Definition:</b> <a href="adapter_8hpp_source.html#l00357">adapter.hpp:357</a></div></div>
<div class="ttc" id="namespaceviennacl_1_1io_html_ad934125ed3dbe661e264bcd7d62b1048"><div class="ttname"><a href="namespaceviennacl_1_1io.html#ad934125ed3dbe661e264bcd7d62b1048">viennacl::io::read_matrix_market_file</a></div><div class="ttdeci">long read_matrix_market_file(MatrixT &mat, const char *file, long index_base=1)</div><div class="ttdoc">Reads a sparse matrix from a file (MatrixMarket format) </div><div class="ttdef"><b>Definition:</b> <a href="matrix__market_8hpp_source.html#l00339">matrix_market.hpp:339</a></div></div>
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