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269 lines
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<div id="projectbrief">Additional custom or not Standard C++ covered algorithms</div>
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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_fca3c47b2ea228727bd6729832f89576.html">stdex</a></li> </ul>
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<div class="headertitle"><div class="title">idrec.h</div></div>
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<div class="contents">
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> SPDX-License-Identifier: MIT</span></div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> Copyright © 2016-2022 Amebis</span></div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment">*/</span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span> </div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#pragma once</span></div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span> </div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#include <ios></span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#include <istream></span></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include <ostream></span></div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> </div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span> </div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="keyword">namespace </span>stdex {</div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> <span class="keyword">namespace </span>idrec {</div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> <span class="keyword">template</span> <<span class="keyword">class</span> T_ID></div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> _Success_(<span class="keywordflow">return</span>) <span class="keywordtype">bool</span> read_id(_In_ std::istream& stream, _Out_ T_ID &<span class="keywordtype">id</span>, _In_opt_ std::streamoff end = (std::streamoff)-1)</div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> {</div>
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<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> <span class="keywordflow">if</span> (end == (std::streamoff)-1 || stream.tellg() < end) {</div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> stream.read((<span class="keywordtype">char</span>*)&<span class="keywordtype">id</span>, <span class="keyword">sizeof</span>(<span class="keywordtype">id</span>));</div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> <span class="keywordflow">return</span> stream.good();</div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> } <span class="keywordflow">else</span></div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> }</div>
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> </div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> </div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">template</span> <<span class="keyword">class</span> T_SIZE, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ALIGN></div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> <span class="keywordtype">bool</span> ignore(_In_ std::istream& stream)</div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> {</div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <span class="comment">// Read record size.</span></div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> T_SIZE size;</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> stream.read((<span class="keywordtype">char</span>*)&size, <span class="keyword">sizeof</span>(size));</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordflow">if</span> (!stream.good()) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> </div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> <span class="comment">// Skip the record data.</span></div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> size += (T_SIZE)(ALIGN - size) % ALIGN;</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> stream.ignore(size);</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="keywordflow">if</span> (!stream.good()) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> </div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> }</div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> </div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> </div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> <span class="keyword">template</span> <<span class="keyword">class</span> T_ID, <span class="keyword">class</span> T_SIZE, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ALIGN></div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keywordtype">bool</span> find(_In_ std::istream& stream, _In_ T_ID <span class="keywordtype">id</span>, _In_opt_ std::streamoff end = (std::streamoff)-1)</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> {</div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> T_ID _id;</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> </div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> <span class="keywordflow">while</span> (end == (std::streamoff)-1 || stream.tellg() < end) {</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> stream.read((<span class="keywordtype">char</span>*)&_id, <span class="keyword">sizeof</span>(_id));</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> <span class="keywordflow">if</span> (!stream.good()) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> </div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="keywordflow">if</span> (_id == <span class="keywordtype">id</span>) {</div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="comment">// The record was found.</span></div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> } <span class="keywordflow">else</span></div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> ignore<T_SIZE, ALIGN>(stream);</div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> }</div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> </div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> }</div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> </div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> </div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keyword">template</span> <<span class="keyword">class</span> T_ID, <span class="keyword">class</span> T_SIZE></div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> std::streamoff open(_In_ std::ostream& stream, _In_ T_ID <span class="keywordtype">id</span>)</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> {</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> std::streamoff start = stream.tellp();</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> </div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="comment">// Write ID.</span></div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keywordflow">if</span> (stream.fail()) <span class="keywordflow">return</span> (std::streamoff)-1;</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> stream.write((<span class="keyword">const</span> <span class="keywordtype">char</span>*)&<span class="keywordtype">id</span>, <span class="keyword">sizeof</span>(<span class="keywordtype">id</span>));</div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> </div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> <span class="comment">// Write 0 as a placeholder for data size.</span></div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keywordflow">if</span> (stream.fail()) <span class="keywordflow">return</span> (std::streamoff)-1;</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> T_SIZE size = 0;</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> stream.write((<span class="keyword">const</span> <span class="keywordtype">char</span>*)&size, <span class="keyword">sizeof</span>(size));</div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> </div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> <span class="keywordflow">return</span> start;</div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> }</div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> </div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> </div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> <span class="keyword">template</span> <<span class="keyword">class</span> T_ID, <span class="keyword">class</span> T_SIZE, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ALIGN></div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> std::streamoff close(_In_ std::ostream& stream, _In_ std::streamoff start)</div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> {</div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> std::streamoff end = stream.tellp();</div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> T_SIZE</div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> size = (T_SIZE)(end - start - <span class="keyword">sizeof</span>(T_ID) - <span class="keyword">sizeof</span>(T_SIZE)),</div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> remainder = (T_SIZE)(ALIGN - size) % ALIGN; <span class="comment">// Number of bytes we need to add, to keep the data integral number of ALIGN blocks long</span></div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> </div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keywordflow">if</span> (remainder) {</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="comment">// Append padding.</span></div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">char</span> padding[ALIGN] = {};</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> stream.write(padding, remainder);</div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> end += remainder;</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> }</div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> </div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> <span class="comment">// Update the data size.</span></div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <span class="keywordflow">if</span> (stream.fail()) <span class="keywordflow">return</span> (std::streamoff)-1;</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> stream.seekp(start + <span class="keyword">sizeof</span>(T_ID));</div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> stream.write((<span class="keyword">const</span> <span class="keywordtype">char</span>*)&size, <span class="keyword">sizeof</span>(size));</div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> stream.seekp(end);</div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> </div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keywordflow">return</span> end;</div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> }</div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> </div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> </div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> T_ID, <span class="keyword">class</span> T_SIZE, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ALIGN></div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html"> 157</a></span> <span class="keyword">class </span><a class="code hl_class" href="classstdex_1_1idrec_1_1record.html">record</a></div>
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<div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> {</div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="keyword">public</span>:</div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#af90d32ea1d7d6ac964ae469db92a57db"> 165</a></span> <a class="code hl_function" href="classstdex_1_1idrec_1_1record.html#af90d32ea1d7d6ac964ae469db92a57db">record</a>(_In_ T &d) : <a class="code hl_variable" href="classstdex_1_1idrec_1_1record.html#a0e101ce97e707a52aef4721b85230a75">data</a>(d) {}</div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> </div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> </div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#af65cec0fa6fb5caa57a01c1a7ff781a3"> 173</a></span> <a class="code hl_function" href="classstdex_1_1idrec_1_1record.html#af65cec0fa6fb5caa57a01c1a7ff781a3">record</a>(_In_ <span class="keyword">const</span> T &d) : <a class="code hl_variable" href="classstdex_1_1idrec_1_1record.html#a0e101ce97e707a52aef4721b85230a75">data</a>((T&)d) {}</div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> </div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span> </div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#affe758faa6d0617c7918ba4fb62d300d"> 183</a></span> <span class="keyword">const</span> <a class="code hl_class" href="classstdex_1_1idrec_1_1record.html">record<T, T_ID, T_SIZE, ALIGN></a>& <a class="code hl_function" href="classstdex_1_1idrec_1_1record.html#affe758faa6d0617c7918ba4fb62d300d">operator =</a>(_In_ <span class="keyword">const</span> <a class="code hl_class" href="classstdex_1_1idrec_1_1record.html">record<T, T_ID, T_SIZE, ALIGN></a> &r)</div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> {</div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <a class="code hl_variable" href="classstdex_1_1idrec_1_1record.html#a0e101ce97e707a52aef4721b85230a75">data</a> = r.data;</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> }</div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> </div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> </div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#a779231561f1d295f48e152e476756dfa"> 197</a></span> <span class="keyword">static</span> std::streamoff <a class="code hl_function" href="classstdex_1_1idrec_1_1record.html#a779231561f1d295f48e152e476756dfa">open</a>(_In_ std::ostream& stream)</div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> {</div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> <span class="keywordflow">return</span> stdex::idrec::open<T_ID, T_SIZE>(stream, <span class="keywordtype">id</span>);</div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> }</div>
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<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> </div>
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<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> </div>
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#a1037aeaca7a1f865d6b66352b2671108"> 211</a></span> <span class="keyword">static</span> std::streamoff <a class="code hl_function" href="classstdex_1_1idrec_1_1record.html#a1037aeaca7a1f865d6b66352b2671108">close</a>(_In_ std::ostream& stream, _In_ std::streamoff start)</div>
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<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> {</div>
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<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> <span class="keywordflow">return</span> stdex::idrec::close<T_ID, T_SIZE, ALIGN>(stream, start);</div>
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<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> }</div>
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> </div>
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<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> </div>
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<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#a300a7b84f07cfba57ef4f63087365b1e"> 227</a></span> <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classstdex_1_1idrec_1_1record.html#a300a7b84f07cfba57ef4f63087365b1e">find</a>(_In_ std::istream& stream, _In_opt_ std::streamoff end = (std::streamoff)-1)</div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> {</div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <span class="keywordflow">return</span> stdex::idrec::find<T_ID, T_SIZE, ALIGN>(stream, <span class="keywordtype">id</span>, end);</div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> }</div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> </div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> </div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#a46bb14ff8b2ce2762b776210b9351bae"> 233</a></span> <span class="keyword">static</span> <span class="keyword">const</span> T_ID <a class="code hl_variable" href="classstdex_1_1idrec_1_1record.html#a46bb14ff8b2ce2762b776210b9351bae">id</a>; </div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#a0e101ce97e707a52aef4721b85230a75"> 234</a></span> T &<a class="code hl_variable" href="classstdex_1_1idrec_1_1record.html#a0e101ce97e707a52aef4721b85230a75">data</a>; </div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> };</div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> };</div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span>};</div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> </div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> </div>
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<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span><span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> T_ID, <span class="keyword">class</span> T_SIZE, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ALIGN></div>
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<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span>std::ostream& operator <<(_In_ std::ostream& stream, _In_ <span class="keyword">const</span> <a class="code hl_class" href="classstdex_1_1idrec_1_1record.html">stdex::idrec::record<T, T_ID, T_SIZE, ALIGN></a> r)</div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span>{</div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> <span class="comment">// Parameter r does not need to be passed by reference. It has only one field (data), which is a reference itself already. The id field is static anyway.</span></div>
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> </div>
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<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> std::streamoff start = r.open(stream);</div>
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<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> <span class="keywordflow">if</span> (stream.fail()) <span class="keywordflow">return</span> stream;</div>
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<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> stream << r.data;</div>
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<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> r.close(stream, start);</div>
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<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> </div>
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<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> <span class="keywordflow">return</span> stream;</div>
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span>}</div>
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<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> </div>
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<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> </div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span><span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> T_ID, <span class="keyword">class</span> T_SIZE, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> ALIGN></div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span>std::istream& operator >>(_In_ std::istream& stream, _In_ <a class="code hl_class" href="classstdex_1_1idrec_1_1record.html">stdex::idrec::record<T, T_ID, T_SIZE, ALIGN></a> r)</div>
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<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span>{</div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> <span class="comment">// Parameter r does not need to be passed by reference. It has only one field (data), which is a reference itself already. The id field is static anyway.</span></div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> </div>
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> <span class="comment">// Read data size.</span></div>
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> T_SIZE size;</div>
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<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> stream.read((<span class="keywordtype">char</span>*)&size, <span class="keyword">sizeof</span>(size));</div>
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> <span class="keywordflow">if</span> (!stream.good()) <span class="keywordflow">return</span> stream;</div>
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<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> </div>
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<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> <span class="comment">// Read data.</span></div>
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> std::streamoff start = stream.tellg();</div>
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<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> stream >> r.data; <span class="comment">// TODO: operator >> should not read past the record data! Make a size limited stream and read from it instead.</span></div>
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<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> </div>
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<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> size += (T_SIZE)(ALIGN - size) % ALIGN;</div>
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<div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> stream.seekg(start + size);</div>
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<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> </div>
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<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> <span class="keywordflow">return</span> stream;</div>
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<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span>}</div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html">stdex::idrec::record</a></div><div class="ttdoc">Helper class for read/write of records to/from memory.</div><div class="ttdef"><b>Definition:</b> idrec.h:158</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_a0e101ce97e707a52aef4721b85230a75"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#a0e101ce97e707a52aef4721b85230a75">stdex::idrec::record::data</a></div><div class="ttdeci">T & data</div><div class="ttdoc">Record data reference.</div><div class="ttdef"><b>Definition:</b> idrec.h:234</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_a1037aeaca7a1f865d6b66352b2671108"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#a1037aeaca7a1f865d6b66352b2671108">stdex::idrec::record::close</a></div><div class="ttdeci">static std::streamoff close(std::ostream &stream, std::streamoff start)</div><div class="ttdoc">Updates record header.</div><div class="ttdef"><b>Definition:</b> idrec.h:211</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_a300a7b84f07cfba57ef4f63087365b1e"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#a300a7b84f07cfba57ef4f63087365b1e">stdex::idrec::record::find</a></div><div class="ttdeci">static bool find(std::istream &stream, std::streamoff end=(std::streamoff) -1)</div><div class="ttdoc">Finds record data.</div><div class="ttdef"><b>Definition:</b> idrec.h:227</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_a46bb14ff8b2ce2762b776210b9351bae"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#a46bb14ff8b2ce2762b776210b9351bae">stdex::idrec::record::id</a></div><div class="ttdeci">static const T_ID id</div><div class="ttdoc">Record id.</div><div class="ttdef"><b>Definition:</b> idrec.h:233</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_a779231561f1d295f48e152e476756dfa"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#a779231561f1d295f48e152e476756dfa">stdex::idrec::record::open</a></div><div class="ttdeci">static std::streamoff open(std::ostream &stream)</div><div class="ttdoc">Writes record header.</div><div class="ttdef"><b>Definition:</b> idrec.h:197</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_af65cec0fa6fb5caa57a01c1a7ff781a3"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#af65cec0fa6fb5caa57a01c1a7ff781a3">stdex::idrec::record::record</a></div><div class="ttdeci">record(const T &d)</div><div class="ttdoc">Constructs the class.</div><div class="ttdef"><b>Definition:</b> idrec.h:173</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_af90d32ea1d7d6ac964ae469db92a57db"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#af90d32ea1d7d6ac964ae469db92a57db">stdex::idrec::record::record</a></div><div class="ttdeci">record(T &d)</div><div class="ttdoc">Constructs the class.</div><div class="ttdef"><b>Definition:</b> idrec.h:165</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_affe758faa6d0617c7918ba4fb62d300d"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#affe758faa6d0617c7918ba4fb62d300d">stdex::idrec::record::operator=</a></div><div class="ttdeci">const record< T, T_ID, T_SIZE, ALIGN > & operator=(const record< T, T_ID, T_SIZE, ALIGN > &r)</div><div class="ttdoc">Assignment operator.</div><div class="ttdef"><b>Definition:</b> idrec.h:183</div></div>
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