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<a href="shape_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> * or more contributor license agreements. See the NOTICE file</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> * distributed with this work for additional information</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"> * regarding copyright ownership. The ASF licenses this file</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment"> * to you under the Apache License, Version 2.0 (the</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> * &quot;License&quot;); you may not use this file except in compliance</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"> * with the License. You may obtain a copy of the License at</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment"> * Unless required by applicable law or agreed to in writing,</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment"> * software distributed under the License is distributed on an</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment"> * &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment"> * KIND, either express or implied. See the License for the</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="comment"> * specific language governing permissions and limitations</span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="comment"> * under the License.</span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor">#ifndef MXNET_CPP_SHAPE_H_</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="preprocessor">#define MXNET_CPP_SHAPE_H_</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="preprocessor">#include &lt;istream&gt;</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="preprocessor">#include &lt;ostream&gt;</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="preprocessor">#include &lt;algorithm&gt;</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="cpp-package_2include_2mxnet-cpp_2base_8h.html">mxnet-cpp/base.h</a>&quot;</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacemxnet.html">mxnet</a> {</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;<span class="keyword">namespace </span>cpp {</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;</div><div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html"> 42</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structmxnet_1_1cpp_1_1Shape.html">Shape</a> {</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#a2e31331beab6e555ee9924aecf063df1"> 45</a></span>&#160; <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a2e31331beab6e555ee9924aecf063df1">Shape</a>()</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; : ndim_(0),</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; num_heap_allocated_(0),</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; data_heap_(nullptr) {}</div><div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#a09dd7d8a2c93f806fb6846ccdea572b0"> 53</a></span>&#160; <span class="keyword">explicit</span> <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a09dd7d8a2c93f806fb6846ccdea572b0">Shape</a>(<span class="keyword">const</span> std::vector&lt;index_t&gt; &amp;v)</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; : ndim_(v.size()) {</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <span class="keywordflow">if</span> (ndim_ &lt;= kStackCache) {</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; data_heap_ = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; num_heap_allocated_ = 0;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; std::copy(v.begin(), v.end(), data_stack_);</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; data_heap_ = <span class="keyword">new</span> <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a>[ndim_];</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; num_heap_allocated_ = ndim_;</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; std::copy(v.begin(), v.end(), data_heap_);</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; }</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; }</div><div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#a7ca1c0d97901dc85445ae4ce6b723cbb"> 69</a></span>&#160; <span class="keyword">explicit</span> <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a7ca1c0d97901dc85445ae4ce6b723cbb">Shape</a>(<a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> s1)</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; : ndim_(1) {</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; <span class="keywordflow">if</span> (ndim_ &lt;= kStackCache) {</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; data_heap_ = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; num_heap_allocated_ = 0;</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; data_stack_[0] = s1;</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; data_heap_ = <span class="keyword">new</span> <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a>[ndim_];</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; num_heap_allocated_ = ndim_;</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; data_heap_[0] = s1;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; }</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; }</div><div class="line"><a name="l00086"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#a4ff6496d0851078c0dfd858071071b38"> 86</a></span>&#160; <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a4ff6496d0851078c0dfd858071071b38">Shape</a>(<a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> s1, <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> s2)</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; : ndim_(2) {</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <span class="keywordflow">if</span> (ndim_ &lt;= kStackCache) {</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; data_heap_ = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; num_heap_allocated_ = 0;</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; data_stack_[0] = s1;</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; data_stack_[1] = s2;</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; data_heap_ = <span class="keyword">new</span> <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a>[ndim_];</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; num_heap_allocated_ = ndim_;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; data_heap_[0] = s1;</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; data_heap_[1] = s2;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; }</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; }</div><div class="line"><a name="l00106"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#a6738d274c9a538f8c8d8d1e42f42cf5a"> 106</a></span>&#160; <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a6738d274c9a538f8c8d8d1e42f42cf5a">Shape</a>(<a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> s1, <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> s2, <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> s3)</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; : ndim_(3) {</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="keywordflow">if</span> (ndim_ &lt;= kStackCache) {</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; data_heap_ = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; num_heap_allocated_ = 0;</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; data_stack_[0] = s1;</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; data_stack_[1] = s2;</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; data_stack_[2] = s3;</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; data_heap_ = <span class="keyword">new</span> <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a>[ndim_];</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; num_heap_allocated_ = ndim_;</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; data_heap_[0] = s1;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; data_heap_[1] = s2;</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; data_heap_[2] = s3;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160; }</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; }</div><div class="line"><a name="l00129"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#a39ba6d035cd970723338679ae6fb9c59"> 129</a></span>&#160; <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a39ba6d035cd970723338679ae6fb9c59">Shape</a>(<a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> s1, <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> s2, <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> s3, <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> s4)</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; : ndim_(4) {</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160; <span class="keywordflow">if</span> (ndim_ &lt;= kStackCache) {</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; data_heap_ = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160; num_heap_allocated_ = 0;</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; data_stack_[0] = s1;</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; data_stack_[1] = s2;</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; data_stack_[2] = s3;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160; data_stack_[3] = s4;</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; data_heap_ = <span class="keyword">new</span> <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a>[ndim_];</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; num_heap_allocated_ = ndim_;</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; data_heap_[0] = s1;</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160; data_heap_[1] = s2;</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; data_heap_[2] = s3;</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; data_heap_[3] = s4;</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; }</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; }</div><div class="line"><a name="l00155"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#a4544d5b908324655145641189ec30f60"> 155</a></span>&#160; <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a4544d5b908324655145641189ec30f60">Shape</a>(<a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> s1, <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> s2, <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> s3, <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> s4, <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> s5)</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; : ndim_(5) {</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; <span class="keywordflow">if</span> (ndim_ &lt;= kStackCache) {</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; data_heap_ = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; num_heap_allocated_ = 0;</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; data_stack_[0] = s1;</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160; data_stack_[1] = s2;</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; data_stack_[2] = s3;</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; data_stack_[3] = s4;</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; data_stack_[4] = s5;</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; data_heap_ = <span class="keyword">new</span> <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a>[ndim_];</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; num_heap_allocated_ = ndim_;</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; data_heap_[0] = s1;</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; data_heap_[1] = s2;</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; data_heap_[2] = s3;</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; data_heap_[3] = s4;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; data_heap_[4] = s5;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; }</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; }</div><div class="line"><a name="l00179"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#a89eb750d34a8dcb29279d4484dd3245f"> 179</a></span>&#160; <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a89eb750d34a8dcb29279d4484dd3245f">Shape</a>(<span class="keyword">const</span> <a class="code" href="structmxnet_1_1cpp_1_1Shape.html">Shape</a> &amp;s)</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; : ndim_(s.ndim_) {</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="keywordflow">if</span> (ndim_ &lt;= kStackCache) {</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; data_heap_ = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160; num_heap_allocated_ = 0;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; std::copy(s.data_stack_, s.data_stack_ + ndim_, data_stack_);</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; data_heap_ = <span class="keyword">new</span> <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a>[ndim_];</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; num_heap_allocated_ = ndim_;</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; std::copy(s.data_heap_, s.data_heap_ + ndim_, data_heap_);</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; }</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; }</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160;<span class="preprocessor">#if MSHADOW_IN_CXX11</span></div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160;</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a2e31331beab6e555ee9924aecf063df1">Shape</a>(<a class="code" href="structmxnet_1_1cpp_1_1Shape.html">Shape</a> &amp;&amp;s)</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; : ndim_(s.ndim_),</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; num_heap_allocated_(s.num_heap_allocated_),</div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160; data_heap_(s.data_heap_) {</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; <span class="keywordflow">if</span> (ndim_ &lt;= kStackCache) {</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; std::copy(s.data_stack_, s.data_stack_ + ndim_, data_stack_);</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; }</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; <span class="comment">// remove data heap space from s</span></div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; s.data_heap_ = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160; }</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160;</div><div class="line"><a name="l00208"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#a40b67a6c7bdb73e18bc6b281e32584fb"> 208</a></span>&#160; <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a40b67a6c7bdb73e18bc6b281e32584fb">~Shape</a>() {</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; <span class="comment">// data_heap_ can be nullptr</span></div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; <span class="keyword">delete</span>[] data_heap_;</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; }</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> RandomAccessIterator&gt;</div><div class="line"><a name="l00219"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#a2c82429ac9f09103642649f3c4e45970"> 219</a></span>&#160; <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a2c82429ac9f09103642649f3c4e45970">CopyFrom</a>(RandomAccessIterator begin,</div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160; RandomAccessIterator end) {</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; this-&gt;SetDim(end - begin);</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; std::copy(begin, end, <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a4c1d1d860562bf40cc93edef2db83a01">data</a>());</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; }</div><div class="line"><a name="l00229"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#aa78ab91eaa0f30085656bb0274ec623d"> 229</a></span>&#160; <span class="keyword">inline</span> <a class="code" href="structmxnet_1_1cpp_1_1Shape.html">Shape</a> &amp;<a class="code" href="structmxnet_1_1cpp_1_1Shape.html#aa78ab91eaa0f30085656bb0274ec623d">operator=</a>(<span class="keyword">const</span> <a class="code" href="structmxnet_1_1cpp_1_1Shape.html">Shape</a> &amp;shape) {</div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>&#160; this-&gt;SetDim(shape.ndim_);</div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160; <span class="keyword">const</span> <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> *src = shape.<a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a4c1d1d860562bf40cc93edef2db83a01">data</a>();</div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; std::copy(src, src + ndim_, <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a4c1d1d860562bf40cc93edef2db83a01">data</a>());</div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160; }</div><div class="line"><a name="l00240"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#aee63406a6d35e9ebd54f0096dbcc63b9"> 240</a></span>&#160; <span class="keyword">inline</span> <a class="code" href="structmxnet_1_1cpp_1_1Shape.html">Shape</a> &amp;<a class="code" href="structmxnet_1_1cpp_1_1Shape.html#aee63406a6d35e9ebd54f0096dbcc63b9">operator=</a>(<span class="keyword">const</span> std::vector&lt;index_t&gt; &amp;shape) {</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; this-&gt;<a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a2c82429ac9f09103642649f3c4e45970">CopyFrom</a>(shape.begin(), shape.end());</div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; }</div><div class="line"><a name="l00245"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#a4c1d1d860562bf40cc93edef2db83a01"> 245</a></span>&#160; <span class="keyword">inline</span> <span class="keyword">const</span> <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> *<a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a4c1d1d860562bf40cc93edef2db83a01">data</a>()<span class="keyword"> const </span>{</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; <span class="keywordflow">return</span> ndim_ &lt;= kStackCache ? data_stack_ : data_heap_;</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160; }</div><div class="line"><a name="l00249"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#a3b1ab42010d804d352e363cf85c823c8"> 249</a></span>&#160; <span class="keyword">inline</span> <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> *<a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a3b1ab42010d804d352e363cf85c823c8">data</a>() {</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; <span class="keywordflow">return</span> ndim_ &lt;= kStackCache ? data_stack_ : data_heap_;</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160; }</div><div class="line"><a name="l00253"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#a5767fc5e3582f5f3d1f8282ed812401b"> 253</a></span>&#160; <span class="keyword">inline</span> <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a5767fc5e3582f5f3d1f8282ed812401b">ndim</a>(<span class="keywordtype">void</span>)<span class="keyword"> const </span>{</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; <span class="keywordflow">return</span> ndim_;</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160; }</div><div class="line"><a name="l00261"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#aa4ce78dda6d9cee806f35a0af1953eab"> 261</a></span>&#160; <span class="keyword">inline</span> <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> &amp;<a class="code" href="structmxnet_1_1cpp_1_1Shape.html#aa4ce78dda6d9cee806f35a0af1953eab">operator[]</a>(<a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> i) {</div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160; <span class="keywordflow">return</span> <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a4c1d1d860562bf40cc93edef2db83a01">data</a>()[i];</div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160; }</div><div class="line"><a name="l00269"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#a35c322878d7db5b01c1b8a6f6afa7303"> 269</a></span>&#160; <span class="keyword">inline</span> <span class="keyword">const</span> <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> &amp;<a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a35c322878d7db5b01c1b8a6f6afa7303">operator[]</a>(<a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> i)<span class="keyword"> const </span>{</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160; <span class="keywordflow">return</span> <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a4c1d1d860562bf40cc93edef2db83a01">data</a>()[i];</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160; }</div><div class="line"><a name="l00273"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#a948c5bec0e06f42b7db54bde3167af99"> 273</a></span>&#160; <span class="keyword">inline</span> <span class="keywordtype">size_t</span> <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a948c5bec0e06f42b7db54bde3167af99">Size</a>(<span class="keywordtype">void</span>)<span class="keyword"> const </span>{</div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; <span class="keywordtype">size_t</span> size = 1;</div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span>&#160; <span class="keyword">const</span> <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> *d = this-&gt;<a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a4c1d1d860562bf40cc93edef2db83a01">data</a>();</div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; <span class="keywordflow">for</span> (<a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> i = 0; i &lt; ndim_; ++i) {</div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160; size *= d[i];</div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160; }</div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160; <span class="keywordflow">return</span> size;</div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160; }</div><div class="line"><a name="l00285"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#a82b28f0e28976067e26212f7f00be508"> 285</a></span>&#160; <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a82b28f0e28976067e26212f7f00be508">operator==</a>(<span class="keyword">const</span> <a class="code" href="structmxnet_1_1cpp_1_1Shape.html">Shape</a> &amp;s)<span class="keyword"> const </span>{</div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160; <span class="keywordflow">if</span> (ndim_ != s.ndim_) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160; <span class="keywordflow">if</span> (ndim_ &lt;= kStackCache) {</div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160; <span class="keywordflow">for</span> (<a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> i = 0; i &lt; ndim_; ++i) {</div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160; <span class="keywordflow">if</span> (data_stack_[i] != s.data_stack_[i]) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; }</div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160; <span class="keywordflow">for</span> (<a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> i = 0; i &lt; ndim_; ++i) {</div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160; <span class="keywordflow">if</span> (data_heap_[i] != s.data_heap_[i]) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160; }</div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160; }</div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160; }</div><div class="line"><a name="l00302"></a><span class="lineno"><a class="line" href="structmxnet_1_1cpp_1_1Shape.html#a138b0895f2aa961e2c6c8ced4aaea223"> 302</a></span>&#160; <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a138b0895f2aa961e2c6c8ced4aaea223">operator!=</a>(<span class="keyword">const</span> <a class="code" href="structmxnet_1_1cpp_1_1Shape.html">Shape</a> &amp;s)<span class="keyword"> const </span>{</div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>&#160; <span class="keywordflow">return</span> !(*<span class="keyword">this</span> == s);</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>&#160; }</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>&#160;</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>&#160; <span class="keyword">friend</span> std::ostream &amp;<a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a4702299639c1d7f1652b77f11011b379">operator&lt;&lt;</a>(std::ostream &amp;os, <span class="keyword">const</span> <a class="code" href="structmxnet_1_1cpp_1_1Shape.html">Shape</a> &amp;shape);</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>&#160; <span class="keyword">friend</span> std::istream &amp;<a class="code" href="structmxnet_1_1cpp_1_1Shape.html#ad1d046fe5cabf346028e574e84812256">operator&gt;&gt;</a>(std::istream &amp;is, <a class="code" href="structmxnet_1_1cpp_1_1Shape.html">Shape</a> &amp;shape);</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span>&#160;</div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span>&#160; <span class="keyword">private</span>:</div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span>&#160; <span class="comment">// the shape will be stored in data_stack_</span></div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span>&#160; <span class="comment">// when dimension is smaller than kStackCache</span></div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>&#160; <span class="comment">// when it is bigger, it will be stored in data_heap_;</span></div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160;<span class="comment"></span> <span class="keyword">static</span> <span class="keyword">const</span> <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> kStackCache = 5;</div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>&#160; <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> ndim_;</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160; <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> num_heap_allocated_;</div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160; <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> data_stack_[kStackCache];</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160; <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> *data_heap_;</div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>&#160; <span class="keyword">inline</span> <span class="keywordtype">void</span> SetDim(<a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> dim) {</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160; <span class="keywordflow">if</span> (dim &gt; kStackCache &amp;&amp;</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160; dim &gt; num_heap_allocated_) {</div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160; <span class="comment">// data_heap_ can be nullptr</span></div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160; <span class="keyword">delete</span>[] data_heap_;</div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160; data_heap_ = <span class="keyword">new</span> <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a>[dim];</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160; num_heap_allocated_ = dim;</div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>&#160; }</div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>&#160; ndim_ = dim;</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>&#160; }</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>&#160;};</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>&#160;</div><div class="line"><a name="l00345"></a><span class="lineno"><a class="line" href="namespacemxnet_1_1cpp.html#a70dfe73858728880adc2f777c0a55d68"> 345</a></span>&#160;<span class="keyword">inline</span> std::ostream &amp;<a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a4702299639c1d7f1652b77f11011b379">operator&lt;&lt;</a>(std::ostream &amp;os, <span class="keyword">const</span> <a class="code" href="structmxnet_1_1cpp_1_1Shape.html">Shape</a> &amp;shape) {</div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>&#160; os &lt;&lt; <span class="charliteral">&#39;(&#39;</span>;</div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>&#160; <span class="keywordflow">for</span> (<a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> i = 0; i &lt; shape.<a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a5767fc5e3582f5f3d1f8282ed812401b">ndim</a>(); ++i) {</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>&#160; <span class="keywordflow">if</span> (i != 0) os &lt;&lt; <span class="charliteral">&#39;,&#39;</span>;</div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>&#160; os &lt;&lt; static_cast&lt;int&gt;(shape[i]); <span class="comment">// Supports negative Shape &#39;special codes&#39; for inferring</span></div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>&#160; }</div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>&#160; <span class="comment">// python style tuple</span></div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>&#160; <span class="keywordflow">if</span> (shape.<a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a5767fc5e3582f5f3d1f8282ed812401b">ndim</a>() == 1) os &lt;&lt; <span class="charliteral">&#39;,&#39;</span>;</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span>&#160; os &lt;&lt; <span class="charliteral">&#39;)&#39;</span>;</div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>&#160; <span class="keywordflow">return</span> os;</div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>&#160;}</div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>&#160;</div><div class="line"><a name="l00363"></a><span class="lineno"><a class="line" href="namespacemxnet_1_1cpp.html#aaab80b2ff315a4fa9c5c6782a6b372d8"> 363</a></span>&#160;<span class="keyword">inline</span> std::istream &amp;<a class="code" href="structmxnet_1_1cpp_1_1Shape.html#ad1d046fe5cabf346028e574e84812256">operator&gt;&gt;</a>(std::istream &amp;is, <a class="code" href="structmxnet_1_1cpp_1_1Shape.html">Shape</a> &amp;shape) {</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>&#160; <span class="comment">// get (</span></div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span>&#160; <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>&#160; <span class="keywordtype">char</span> ch = is.get();</div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>&#160; <span class="keywordflow">if</span> (ch == <span class="charliteral">&#39;(&#39;</span>) <span class="keywordflow">break</span>;</div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>&#160; <span class="keywordflow">if</span> (!<a class="code" href="namespacedmlc.html#a52dcf01c9ba22be9b08e455194fb2ab3">isspace</a>(ch)) {</div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>&#160; is.setstate(std::ios::failbit);</div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>&#160; <span class="keywordflow">return</span> is;</div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>&#160; }</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>&#160; }</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>&#160; <a class="code" href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">index_t</a> idx;</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>&#160; std::vector&lt;index_t&gt; tmp;</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>&#160; <span class="keywordflow">while</span> (is &gt;&gt; idx) {</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span>&#160; tmp.push_back(idx);</div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>&#160; <span class="keywordtype">char</span> ch;</div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>&#160; <span class="keywordflow">do</span> {</div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>&#160; ch = is.get();</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span>&#160; } <span class="keywordflow">while</span> (<a class="code" href="namespacedmlc.html#a52dcf01c9ba22be9b08e455194fb2ab3">isspace</a>(ch));</div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>&#160; <span class="keywordflow">if</span> (ch == <span class="charliteral">&#39;,&#39;</span>) {</div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>&#160; <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>&#160; ch = is.peek();</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>&#160; <span class="keywordflow">if</span> (<a class="code" href="namespacedmlc.html#a52dcf01c9ba22be9b08e455194fb2ab3">isspace</a>(ch)) {</div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span>&#160; is.get(); <span class="keywordflow">continue</span>;</div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span>&#160; }</div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>&#160; <span class="keywordflow">if</span> (ch == <span class="charliteral">&#39;)&#39;</span>) {</div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>&#160; is.get(); <span class="keywordflow">break</span>;</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>&#160; }</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>&#160; <span class="keywordflow">break</span>;</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>&#160; }</div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>&#160; <span class="keywordflow">if</span> (ch == <span class="charliteral">&#39;)&#39;</span>) <span class="keywordflow">break</span>;</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>&#160; } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (ch == <span class="charliteral">&#39;)&#39;</span>) {</div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>&#160; <span class="keywordflow">break</span>;</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>&#160; } <span class="keywordflow">else</span> {</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>&#160; is.setstate(std::ios::failbit);</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span>&#160; <span class="keywordflow">return</span> is;</div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>&#160; }</div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>&#160; }</div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>&#160; shape.<a class="code" href="structmxnet_1_1cpp_1_1Shape.html#a2c82429ac9f09103642649f3c4e45970">CopyFrom</a>(tmp.begin(), tmp.end());</div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>&#160; <span class="keywordflow">return</span> is;</div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>&#160;}</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span>&#160;</div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>&#160;} <span class="comment">// namespace cpp</span></div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>&#160;} <span class="comment">// namespace mxnet</span></div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>&#160;</div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>&#160;<span class="preprocessor">#endif // MXNET_CPP_SHAPE_H_</span></div><div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_a40b67a6c7bdb73e18bc6b281e32584fb"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#a40b67a6c7bdb73e18bc6b281e32584fb">mxnet::cpp::Shape::~Shape</a></div><div class="ttdeci">~Shape()</div><div class="ttdoc">destructor </div><div class="ttdef"><b>Definition:</b> shape.h:208</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_aa4ce78dda6d9cee806f35a0af1953eab"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#aa4ce78dda6d9cee806f35a0af1953eab">mxnet::cpp::Shape::operator[]</a></div><div class="ttdeci">index_t &amp; operator[](index_t i)</div><div class="ttdoc">get corresponding index </div><div class="ttdef"><b>Definition:</b> shape.h:261</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_a4702299639c1d7f1652b77f11011b379"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#a4702299639c1d7f1652b77f11011b379">mxnet::cpp::Shape::operator&lt;&lt;</a></div><div class="ttdeci">friend std::ostream &amp; operator&lt;&lt;(std::ostream &amp;os, const Shape &amp;shape)</div><div class="ttdoc">allow string printing of the shape </div><div class="ttdef"><b>Definition:</b> shape.h:345</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_a39ba6d035cd970723338679ae6fb9c59"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#a39ba6d035cd970723338679ae6fb9c59">mxnet::cpp::Shape::Shape</a></div><div class="ttdeci">Shape(index_t s1, index_t s2, index_t s3, index_t s4)</div><div class="ttdoc">constructor four dimmension shape </div><div class="ttdef"><b>Definition:</b> shape.h:129</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_a35c322878d7db5b01c1b8a6f6afa7303"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#a35c322878d7db5b01c1b8a6f6afa7303">mxnet::cpp::Shape::operator[]</a></div><div class="ttdeci">const index_t &amp; operator[](index_t i) const</div><div class="ttdoc">get corresponding index </div><div class="ttdef"><b>Definition:</b> shape.h:269</div></div>
<div class="ttc" id="namespacemxnet_html"><div class="ttname"><a href="namespacemxnet.html">mxnet</a></div><div class="ttdoc">namespace of mxnet </div><div class="ttdef"><b>Definition:</b> api_registry.h:33</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_a82b28f0e28976067e26212f7f00be508"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#a82b28f0e28976067e26212f7f00be508">mxnet::cpp::Shape::operator==</a></div><div class="ttdeci">bool operator==(const Shape &amp;s) const</div><div class="ttdef"><b>Definition:</b> shape.h:285</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html">mxnet::cpp::Shape</a></div><div class="ttdoc">dynamic shape class that can hold shape of arbirary dimension </div><div class="ttdef"><b>Definition:</b> shape.h:42</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_a948c5bec0e06f42b7db54bde3167af99"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#a948c5bec0e06f42b7db54bde3167af99">mxnet::cpp::Shape::Size</a></div><div class="ttdeci">size_t Size(void) const</div><div class="ttdoc">total number of elements in the tensor </div><div class="ttdef"><b>Definition:</b> shape.h:273</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_a7ca1c0d97901dc85445ae4ce6b723cbb"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#a7ca1c0d97901dc85445ae4ce6b723cbb">mxnet::cpp::Shape::Shape</a></div><div class="ttdeci">Shape(index_t s1)</div><div class="ttdoc">constructor one dimmension shape </div><div class="ttdef"><b>Definition:</b> shape.h:69</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_a6738d274c9a538f8c8d8d1e42f42cf5a"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#a6738d274c9a538f8c8d8d1e42f42cf5a">mxnet::cpp::Shape::Shape</a></div><div class="ttdeci">Shape(index_t s1, index_t s2, index_t s3)</div><div class="ttdoc">constructor three dimmension shape </div><div class="ttdef"><b>Definition:</b> shape.h:106</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_aee63406a6d35e9ebd54f0096dbcc63b9"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#aee63406a6d35e9ebd54f0096dbcc63b9">mxnet::cpp::Shape::operator=</a></div><div class="ttdeci">Shape &amp; operator=(const std::vector&lt; index_t &gt; &amp;shape)</div><div class="ttdoc">assignment from vector </div><div class="ttdef"><b>Definition:</b> shape.h:240</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_a89eb750d34a8dcb29279d4484dd3245f"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#a89eb750d34a8dcb29279d4484dd3245f">mxnet::cpp::Shape::Shape</a></div><div class="ttdeci">Shape(const Shape &amp;s)</div><div class="ttdoc">constructor from Shape </div><div class="ttdef"><b>Definition:</b> shape.h:179</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_a09dd7d8a2c93f806fb6846ccdea572b0"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#a09dd7d8a2c93f806fb6846ccdea572b0">mxnet::cpp::Shape::Shape</a></div><div class="ttdeci">Shape(const std::vector&lt; index_t &gt; &amp;v)</div><div class="ttdoc">constructor from a vector of index_t </div><div class="ttdef"><b>Definition:</b> shape.h:53</div></div>
<div class="ttc" id="namespacedmlc_html_a52dcf01c9ba22be9b08e455194fb2ab3"><div class="ttname"><a href="namespacedmlc.html#a52dcf01c9ba22be9b08e455194fb2ab3">dmlc::isspace</a></div><div class="ttdeci">bool isspace(char c)</div><div class="ttdoc">Inline implementation of isspace(). Tests whether the given character is a whitespace letter...</div><div class="ttdef"><b>Definition:</b> strtonum.h:26</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_a4ff6496d0851078c0dfd858071071b38"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#a4ff6496d0851078c0dfd858071071b38">mxnet::cpp::Shape::Shape</a></div><div class="ttdeci">Shape(index_t s1, index_t s2)</div><div class="ttdoc">constructor two dimmension shape </div><div class="ttdef"><b>Definition:</b> shape.h:86</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_a4544d5b908324655145641189ec30f60"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#a4544d5b908324655145641189ec30f60">mxnet::cpp::Shape::Shape</a></div><div class="ttdeci">Shape(index_t s1, index_t s2, index_t s3, index_t s4, index_t s5)</div><div class="ttdoc">constructor five dimmension shape </div><div class="ttdef"><b>Definition:</b> shape.h:155</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_a2e31331beab6e555ee9924aecf063df1"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#a2e31331beab6e555ee9924aecf063df1">mxnet::cpp::Shape::Shape</a></div><div class="ttdeci">Shape()</div><div class="ttdoc">constructor </div><div class="ttdef"><b>Definition:</b> shape.h:45</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_ad1d046fe5cabf346028e574e84812256"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#ad1d046fe5cabf346028e574e84812256">mxnet::cpp::Shape::operator&gt;&gt;</a></div><div class="ttdeci">friend std::istream &amp; operator&gt;&gt;(std::istream &amp;is, Shape &amp;shape)</div><div class="ttdoc">read shape from the istream </div><div class="ttdef"><b>Definition:</b> shape.h:363</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_a4c1d1d860562bf40cc93edef2db83a01"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#a4c1d1d860562bf40cc93edef2db83a01">mxnet::cpp::Shape::data</a></div><div class="ttdeci">const index_t * data() const</div><div class="ttdef"><b>Definition:</b> shape.h:245</div></div>
<div class="ttc" id="cpp-package_2include_2mxnet-cpp_2base_8h_html"><div class="ttname"><a href="cpp-package_2include_2mxnet-cpp_2base_8h.html">base.h</a></div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_a5767fc5e3582f5f3d1f8282ed812401b"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#a5767fc5e3582f5f3d1f8282ed812401b">mxnet::cpp::Shape::ndim</a></div><div class="ttdeci">index_t ndim(void) const</div><div class="ttdoc">return number of dimension of the tensor inside </div><div class="ttdef"><b>Definition:</b> shape.h:253</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_a2c82429ac9f09103642649f3c4e45970"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#a2c82429ac9f09103642649f3c4e45970">mxnet::cpp::Shape::CopyFrom</a></div><div class="ttdeci">void CopyFrom(RandomAccessIterator begin, RandomAccessIterator end)</div><div class="ttdoc">copy shape from content betwen two iterators </div><div class="ttdef"><b>Definition:</b> shape.h:219</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_a3b1ab42010d804d352e363cf85c823c8"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#a3b1ab42010d804d352e363cf85c823c8">mxnet::cpp::Shape::data</a></div><div class="ttdeci">index_t * data()</div><div class="ttdef"><b>Definition:</b> shape.h:249</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_a138b0895f2aa961e2c6c8ced4aaea223"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#a138b0895f2aa961e2c6c8ced4aaea223">mxnet::cpp::Shape::operator!=</a></div><div class="ttdeci">bool operator!=(const Shape &amp;s) const</div><div class="ttdef"><b>Definition:</b> shape.h:302</div></div>
<div class="ttc" id="namespacemxnet_1_1cpp_html_ae3c39bf39510741647c969f5409bb5d4"><div class="ttname"><a href="namespacemxnet_1_1cpp.html#ae3c39bf39510741647c969f5409bb5d4">mxnet::cpp::index_t</a></div><div class="ttdeci">unsigned index_t</div><div class="ttdef"><b>Definition:</b> base.h:36</div></div>
<div class="ttc" id="structmxnet_1_1cpp_1_1Shape_html_aa78ab91eaa0f30085656bb0274ec623d"><div class="ttname"><a href="structmxnet_1_1cpp_1_1Shape.html#aa78ab91eaa0f30085656bb0274ec623d">mxnet::cpp::Shape::operator=</a></div><div class="ttdeci">Shape &amp; operator=(const Shape &amp;shape)</div><div class="ttdoc">assignment from shape </div><div class="ttdef"><b>Definition:</b> shape.h:229</div></div>
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