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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.hpp</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 © 2016-2023 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 "compat.hpp"</span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#include "stream.hpp"</span></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include <ios></span></div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include <istream></span></div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include <ostream></span></div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="keyword">namespace </span>stdex {</div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> <span class="keyword">namespace </span>idrec {</div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">template</span> <<span class="keyword">class</span> T_ID></div>
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<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</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="l00029" name="l00029"></a><span class="lineno"> 29</span> {</div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <span class="keywordflow">if</span> (end == (std::streamoff)-1 || stream.tellg() < end) {</div>
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<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</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="l00032" name="l00032"></a><span class="lineno"> 32</span> <span class="keywordflow">return</span> stream.good();</div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> } <span class="keywordflow">else</span></div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <span class="keywordflow">return</span> <span class="keyword">false</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="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keyword">template</span> <<span class="keyword">class</span> T_ID></div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> _Success_(<span class="keywordflow">return</span>) <span class="keywordtype">bool</span> read_id(_In_ <a class="code hl_class" href="classstdex_1_1stream_1_1basic__file.html">stdex::stream::basic_file</a>& stream, _Out_ T_ID &<span class="keywordtype">id</span>, _In_opt_ stdex::stream::fpos_t end = stdex::stream::fpos_max)</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> {</div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <span class="keywordflow">if</span> (end == stdex::stream::fpos_max || stream.tell() < end) {</div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> stream >> id;</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="keywordflow">return</span> stream.ok();</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> } <span class="keywordflow">else</span></div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> }</div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> </div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</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="l00068" name="l00068"></a><span class="lineno"> 68</span> <span class="keywordtype">bool</span> ignore(_In_ std::istream& stream)</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> {</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> <span class="comment">// Read record size.</span></div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> T_SIZE size;</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</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="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keywordflow">if</span> (!stream.good()) _Unlikely_ <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> </div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="comment">// Skip the record data.</span></div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> size += (T_SIZE)(ALIGN - size) % ALIGN;</div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> stream.ignore(size);</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="keywordflow">if</span> (!stream.good()) _Unlikely_ <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> </div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</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="l00092" name="l00092"></a><span class="lineno"> 92</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="l00093" name="l00093"></a><span class="lineno"> 93</span> <span class="keywordtype">bool</span> ignore(_In_ <a class="code hl_class" href="classstdex_1_1stream_1_1basic__file.html">stdex::stream::basic_file</a>& stream)</div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> {</div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="comment">// Read record size.</span></div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> T_SIZE size;</div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> stream >> size;</div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordflow">if</span> (!stream.ok()) _Unlikely_ <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> </div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> <span class="comment">// Skip the record data.</span></div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> size += (T_SIZE)(ALIGN - size) % ALIGN;</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> stream.skip(size);</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keywordflow">if</span> (!stream.ok()) _Unlikely_ <span class="keywordflow">return</span> <span class="keyword">false</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> <span class="keywordflow">return</span> <span class="keyword">true</span>;</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> </div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</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="l00120" name="l00120"></a><span class="lineno"> 120</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="l00121" name="l00121"></a><span class="lineno"> 121</span> {</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> T_ID _id;</div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> <span class="keywordflow">while</span> (end == (std::streamoff)-1 || stream.tellg() < end) {</div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</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="l00125" name="l00125"></a><span class="lineno"> 125</span> <span class="keywordflow">if</span> (!stream.good()) _Unlikely_ <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> <span class="keywordflow">if</span> (_id == <span class="keywordtype">id</span>) {</div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <span class="comment">// The record was found.</span></div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> } <span class="keywordflow">else</span></div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> ignore<T_SIZE, ALIGN>(stream);</div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> }</div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> }</div>
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<div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> </div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</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="l00147" name="l00147"></a><span class="lineno"> 147</span> <span class="keywordtype">bool</span> find(_In_ <a class="code hl_class" href="classstdex_1_1stream_1_1basic__file.html">stdex::stream::basic_file</a>& stream, _In_ T_ID <span class="keywordtype">id</span>, _In_opt_ stdex::stream::fpos_t end = stdex::stream::fpos_max)</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> T_ID _id;</div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <span class="keywordflow">while</span> (end == stdex::stream::fpos_max || stream.tell() < end) {</div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> stream >> _id;</div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <span class="keywordflow">if</span> (!stream.ok()) _Unlikely_ <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="keywordflow">if</span> (_id == <span class="keywordtype">id</span>) {</div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> <span class="comment">// The record was found.</span></div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> } <span class="keywordflow">else</span></div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> ignore<T_SIZE, ALIGN>(stream);</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="keywordflow">return</span> <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> }</div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> </div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</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="l00171" name="l00171"></a><span class="lineno"> 171</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="l00172" name="l00172"></a><span class="lineno"> 172</span> {</div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> std::streamoff start = stream.tellp();</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> <span class="comment">// Write ID.</span></div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keywordflow">if</span> (stream.fail()) _Unlikely_ <span class="keywordflow">return</span> (std::streamoff)-1;</div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</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="l00178" name="l00178"></a><span class="lineno"> 178</span> </div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> <span class="comment">// Write 0 as a placeholder for data size.</span></div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <span class="keywordflow">if</span> (stream.fail()) _Unlikely_ <span class="keywordflow">return</span> (std::streamoff)-1;</div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> T_SIZE size = 0;</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</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="l00183" name="l00183"></a><span class="lineno"> 183</span> </div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="keywordflow">return</span> start;</div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> }</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> </div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</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="l00196" name="l00196"></a><span class="lineno"> 196</span> stdex::stream::fpos_t open(_In_ <a class="code hl_class" href="classstdex_1_1stream_1_1basic__file.html">stdex::stream::basic_file</a>& stream, _In_ T_ID <span class="keywordtype">id</span>)</div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> {</div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> <span class="keyword">auto</span> start = stream.tell();</div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> </div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> <span class="comment">// Write ID.</span></div>
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<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> <span class="keywordflow">if</span> (!stream.ok()) _Unlikely_ <span class="keywordflow">return</span> stdex::stream::fpos_max;</div>
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<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> stream << id;</div>
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<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> </div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> <span class="comment">// Write 0 as a placeholder for data size.</span></div>
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<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> <span class="keywordflow">if</span> (!stream.ok()) _Unlikely_ <span class="keywordflow">return</span> stdex::stream::fpos_max;</div>
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<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> stream << (T_SIZE)0;</div>
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<div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> </div>
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<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> <span class="keywordflow">return</span> start;</div>
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> }</div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> </div>
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<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</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="l00220" name="l00220"></a><span class="lineno"> 220</span> std::streamoff close(_In_ std::ostream& stream, _In_ std::streamoff start)</div>
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<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> {</div>
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<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> std::streamoff end = stream.tellp();</div>
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<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> T_SIZE</div>
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<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> size = <span class="keyword">static_cast<</span>T_SIZE<span class="keyword">></span>(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="l00225" name="l00225"></a><span class="lineno"> 225</span> remainder = <span class="keyword">static_cast<</span>T_SIZE<span class="keyword">></span>((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="l00226" name="l00226"></a><span class="lineno"> 226</span> </div>
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<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> <span class="keywordflow">if</span> (remainder) {</div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <span class="comment">// Append padding.</span></div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</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="l00230" name="l00230"></a><span class="lineno"> 230</span> stream.write(padding, remainder);</div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> end += remainder;</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"> 233</span> </div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> <span class="comment">// Update the data size.</span></div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <span class="keywordflow">if</span> (stream.fail()) _Unlikely_ <span class="keywordflow">return</span> (std::streamoff)-1;</div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> stream.seekp(start + <span class="keyword">sizeof</span>(T_ID));</div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</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="l00238" name="l00238"></a><span class="lineno"> 238</span> stream.seekp(end);</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="l00240" name="l00240"></a><span class="lineno"> 240</span> <span class="keywordflow">return</span> end;</div>
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<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> }</div>
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<div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> </div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</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="l00252" name="l00252"></a><span class="lineno"> 252</span> stdex::stream::fpos_t close(_In_ <a class="code hl_class" href="classstdex_1_1stream_1_1basic__file.html">stdex::stream::basic_file</a>& stream, _In_ stdex::stream::fpos_t start)</div>
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<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> {</div>
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<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> <span class="keyword">auto</span> end = stream.tell();</div>
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<div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> T_SIZE</div>
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<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span> size = <span class="keyword">static_cast<</span>T_SIZE<span class="keyword">></span>(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="l00257" name="l00257"></a><span class="lineno"> 257</span> remainder = <span class="keyword">static_cast<</span>T_SIZE<span class="keyword">></span>((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="l00258" name="l00258"></a><span class="lineno"> 258</span> </div>
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> <span class="keywordflow">if</span> (remainder) {</div>
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<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> <span class="comment">// Append padding.</span></div>
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<div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</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="l00262" name="l00262"></a><span class="lineno"> 262</span> stream.write_array(padding, <span class="keyword">sizeof</span>(<span class="keywordtype">char</span>), remainder);</div>
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<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> end += remainder;</div>
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<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> }</div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> </div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> <span class="comment">// Update the data size.</span></div>
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<div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> <span class="keywordflow">if</span> (!stream.ok()) _Unlikely_ <span class="keywordflow">return</span> stdex::stream::fpos_max;</div>
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<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> stream.seek(start + <span class="keyword">sizeof</span>(T_ID));</div>
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<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> stream << size;</div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> stream.seek(end);</div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> </div>
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<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> <span class="keywordflow">return</span> end;</div>
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<div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</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="l00278" name="l00278"></a><span class="lineno"> 278</span> <span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> T_ID, const T_ID 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="foldopen" id="foldopen00279" data-start="{" data-end="};">
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<div class="line"><a id="l00279" name="l00279"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html"> 279</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="l00280" name="l00280"></a><span class="lineno"> 280</span> {</div>
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> <span class="keyword">public</span>:</div>
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<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#a611da3801d9e7215324c9a5992a27f39"> 287</a></span> <a class="code hl_function" href="classstdex_1_1idrec_1_1record.html#a611da3801d9e7215324c9a5992a27f39">record</a>(_In_ T &d) : <a class="code hl_variable" href="classstdex_1_1idrec_1_1record.html#a1ab09fae53142836c958a63137fb37cb">data</a>(d) {}</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="line"><a id="l00294" name="l00294"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#ab84a09093bd1a2cbf720329b84c6d73b"> 294</a></span> <a class="code hl_function" href="classstdex_1_1idrec_1_1record.html#ab84a09093bd1a2cbf720329b84c6d73b">record</a>(_In_ <span class="keyword">const</span> T &d) : <a class="code hl_variable" href="classstdex_1_1idrec_1_1record.html#a1ab09fae53142836c958a63137fb37cb">data</a>((T&)d) {}</div>
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<div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span> </div>
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<div class="foldopen" id="foldopen00299" data-start="{" data-end="}">
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<div class="line"><a id="l00299" name="l00299"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#a24e54541a476b01e332290c57a495926"> 299</a></span> <span class="keyword">static</span> <span class="keyword">const</span> T_ID <a class="code hl_function" href="classstdex_1_1idrec_1_1record.html#a24e54541a476b01e332290c57a495926">id</a>()</div>
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<div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> {</div>
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<div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span> <span class="keywordflow">return</span> ID;</div>
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<div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span> }</div>
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</div>
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<div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span> </div>
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<div class="foldopen" id="foldopen00311" data-start="{" data-end="}">
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<div class="line"><a id="l00311" name="l00311"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#a3d4bff1bf080fb8cb3960b5b5018392c"> 311</a></span> <span class="keyword">const</span> <a class="code hl_class" href="classstdex_1_1idrec_1_1record.html">record<T, T_ID, ID, T_SIZE, ALIGN></a>& <a class="code hl_function" href="classstdex_1_1idrec_1_1record.html#a3d4bff1bf080fb8cb3960b5b5018392c">operator =</a>(_In_ <span class="keyword">const</span> <a class="code hl_class" href="classstdex_1_1idrec_1_1record.html">record<T, T_ID, ID, T_SIZE, ALIGN></a> &r)</div>
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<div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> {</div>
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<div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> <a class="code hl_variable" href="classstdex_1_1idrec_1_1record.html#a1ab09fae53142836c958a63137fb37cb">data</a> = r.<a class="code hl_variable" href="classstdex_1_1idrec_1_1record.html#a1ab09fae53142836c958a63137fb37cb">data</a>;</div>
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<div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
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<div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> }</div>
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</div>
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<div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> </div>
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<div class="foldopen" id="foldopen00324" data-start="{" data-end="}">
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<div class="line"><a id="l00324" name="l00324"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#a379d9eeac3c52375982ba75df33604ca"> 324</a></span> <span class="keyword">static</span> std::streamoff <a class="code hl_function" href="classstdex_1_1idrec_1_1record.html#a379d9eeac3c52375982ba75df33604ca">open</a>(_In_ std::ostream& stream)</div>
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<div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> {</div>
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<div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> <span class="keywordflow">return</span> stdex::idrec::open<T_ID, T_SIZE>(stream, ID);</div>
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<div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> }</div>
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</div>
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<div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> </div>
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<div class="foldopen" id="foldopen00336" data-start="{" data-end="}">
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<div class="line"><a id="l00336" name="l00336"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#a0498a09948194be47553433c87121ec4"> 336</a></span> <span class="keyword">static</span> stdex::stream::foff_t <a class="code hl_function" href="classstdex_1_1idrec_1_1record.html#a0498a09948194be47553433c87121ec4">open</a>(_In_ <a class="code hl_class" href="classstdex_1_1stream_1_1basic__file.html">stdex::stream::basic_file</a>& stream)</div>
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<div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> {</div>
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<div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> <span class="keywordflow">return</span> stdex::idrec::open<T_ID, T_SIZE>(stream, ID);</div>
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<div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> }</div>
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</div>
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<div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> </div>
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<div class="foldopen" id="foldopen00349" data-start="{" data-end="}">
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<div class="line"><a id="l00349" name="l00349"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#ae63ba9487daaf8ec39dfe7dd04c13cc9"> 349</a></span> <span class="keyword">static</span> std::streamoff <a class="code hl_function" href="classstdex_1_1idrec_1_1record.html#ae63ba9487daaf8ec39dfe7dd04c13cc9">close</a>(_In_ std::ostream& stream, _In_ std::streamoff start)</div>
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<div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> {</div>
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<div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</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="l00352" name="l00352"></a><span class="lineno"> 352</span> }</div>
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</div>
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<div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> </div>
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<div class="foldopen" id="foldopen00362" data-start="{" data-end="}">
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<div class="line"><a id="l00362" name="l00362"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#a0a91b8bf08dbd79ac40b4361a9faee2a"> 362</a></span> <span class="keyword">static</span> stdex::stream::foff_t <a class="code hl_function" href="classstdex_1_1idrec_1_1record.html#a0a91b8bf08dbd79ac40b4361a9faee2a">close</a>(_In_ <a class="code hl_class" href="classstdex_1_1stream_1_1basic__file.html">stdex::stream::basic_file</a>& stream, _In_ stdex::stream::foff_t start)</div>
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<div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span> {</div>
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<div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</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="l00365" name="l00365"></a><span class="lineno"> 365</span> }</div>
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</div>
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<div class="line"><a id="l00366" name="l00366"></a><span class="lineno"> 366</span> </div>
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<div class="foldopen" id="foldopen00377" data-start="{" data-end="}">
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<div class="line"><a id="l00377" name="l00377"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#a19523040d07119055884a7a2f8ef25fd"> 377</a></span> <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classstdex_1_1idrec_1_1record.html#a19523040d07119055884a7a2f8ef25fd">find</a>(_In_ std::istream& stream, _In_opt_ std::streamoff end = (std::streamoff)-1)</div>
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<div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> {</div>
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<div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span> <span class="keywordflow">return</span> stdex::idrec::find<T_ID, T_SIZE, ALIGN>(stream, ID, end);</div>
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<div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span> }</div>
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</div>
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<div class="line"><a id="l00381" name="l00381"></a><span class="lineno"> 381</span> </div>
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<div class="foldopen" id="foldopen00392" data-start="{" data-end="}">
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<div class="line"><a id="l00392" name="l00392"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#a6566678aa326da5b2d84c38b76d1c195"> 392</a></span> <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classstdex_1_1idrec_1_1record.html#a6566678aa326da5b2d84c38b76d1c195">find</a>(_In_ <a class="code hl_class" href="classstdex_1_1stream_1_1basic__file.html">stdex::stream::basic_file</a>& stream, _In_opt_ stdex::stream::foff_t end = stdex::stream::foff_max)</div>
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<div class="line"><a id="l00393" name="l00393"></a><span class="lineno"> 393</span> {</div>
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<div class="line"><a id="l00394" name="l00394"></a><span class="lineno"> 394</span> <span class="keywordflow">return</span> stdex::idrec::find<T_ID, T_SIZE, ALIGN>(stream, ID, end);</div>
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<div class="line"><a id="l00395" name="l00395"></a><span class="lineno"> 395</span> }</div>
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</div>
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<div class="line"><a id="l00396" name="l00396"></a><span class="lineno"> 396</span> </div>
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<div class="line"><a id="l00397" name="l00397"></a><span class="lineno"><a class="line" href="classstdex_1_1idrec_1_1record.html#a1ab09fae53142836c958a63137fb37cb"> 397</a></span> T &<a class="code hl_variable" href="classstdex_1_1idrec_1_1record.html#a1ab09fae53142836c958a63137fb37cb">data</a>; </div>
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<div class="line"><a id="l00398" name="l00398"></a><span class="lineno"> 398</span> };</div>
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</div>
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<div class="line"><a id="l00399" name="l00399"></a><span class="lineno"> 399</span> };</div>
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<div class="line"><a id="l00400" name="l00400"></a><span class="lineno"> 400</span>};</div>
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<div class="line"><a id="l00401" name="l00401"></a><span class="lineno"> 401</span> </div>
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<div class="line"><a id="l00410" name="l00410"></a><span class="lineno"> 410</span><span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> T_ID, T_ID 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="l00411" name="l00411"></a><span class="lineno"> 411</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, ID, T_SIZE, ALIGN></a> r)</div>
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<div class="line"><a id="l00412" name="l00412"></a><span class="lineno"> 412</span>{</div>
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<div class="line"><a id="l00413" name="l00413"></a><span class="lineno"> 413</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.</span></div>
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<div class="line"><a id="l00414" name="l00414"></a><span class="lineno"> 414</span> </div>
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<div class="line"><a id="l00415" name="l00415"></a><span class="lineno"> 415</span> <span class="keyword">auto</span> start = r.open(stream);</div>
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<div class="line"><a id="l00416" name="l00416"></a><span class="lineno"> 416</span> <span class="keywordflow">if</span> (stream.fail()) _Unlikely_ <span class="keywordflow">return</span> stream;</div>
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<div class="line"><a id="l00417" name="l00417"></a><span class="lineno"> 417</span> stream << r.data;</div>
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<div class="line"><a id="l00418" name="l00418"></a><span class="lineno"> 418</span> r.close(stream, start);</div>
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<div class="line"><a id="l00419" name="l00419"></a><span class="lineno"> 419</span> </div>
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<div class="line"><a id="l00420" name="l00420"></a><span class="lineno"> 420</span> <span class="keywordflow">return</span> stream;</div>
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<div class="line"><a id="l00421" name="l00421"></a><span class="lineno"> 421</span>}</div>
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<div class="line"><a id="l00422" name="l00422"></a><span class="lineno"> 422</span> </div>
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<div class="line"><a id="l00431" name="l00431"></a><span class="lineno"> 431</span><span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> T_ID, T_ID 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="l00432" name="l00432"></a><span class="lineno"> 432</span><a class="code hl_class" href="classstdex_1_1stream_1_1basic__file.html">stdex::stream::basic_file</a>& operator <<(_In_ <a class="code hl_class" href="classstdex_1_1stream_1_1basic__file.html">stdex::stream::basic_file</a>& 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, ID, T_SIZE, ALIGN></a> r)</div>
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<div class="line"><a id="l00433" name="l00433"></a><span class="lineno"> 433</span>{</div>
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<div class="line"><a id="l00434" name="l00434"></a><span class="lineno"> 434</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.</span></div>
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<div class="line"><a id="l00435" name="l00435"></a><span class="lineno"> 435</span> </div>
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<div class="line"><a id="l00436" name="l00436"></a><span class="lineno"> 436</span> <span class="keyword">auto</span> start = r.open(stream);</div>
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<div class="line"><a id="l00437" name="l00437"></a><span class="lineno"> 437</span> <span class="keywordflow">if</span> (!stream.ok()) _Unlikely_ <span class="keywordflow">return</span> stream;</div>
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<div class="line"><a id="l00438" name="l00438"></a><span class="lineno"> 438</span> stream << r.data;</div>
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<div class="line"><a id="l00439" name="l00439"></a><span class="lineno"> 439</span> r.close(stream, start);</div>
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<div class="line"><a id="l00440" name="l00440"></a><span class="lineno"> 440</span> </div>
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<div class="line"><a id="l00441" name="l00441"></a><span class="lineno"> 441</span> <span class="keywordflow">return</span> stream;</div>
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<div class="line"><a id="l00442" name="l00442"></a><span class="lineno"> 442</span>}</div>
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<div class="line"><a id="l00443" name="l00443"></a><span class="lineno"> 443</span> </div>
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<div class="line"><a id="l00452" name="l00452"></a><span class="lineno"> 452</span><span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> T_ID, T_ID 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="l00453" name="l00453"></a><span class="lineno"> 453</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, ID, T_SIZE, ALIGN></a> r)</div>
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<div class="line"><a id="l00454" name="l00454"></a><span class="lineno"> 454</span>{</div>
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<div class="line"><a id="l00455" name="l00455"></a><span class="lineno"> 455</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.</span></div>
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<div class="line"><a id="l00456" name="l00456"></a><span class="lineno"> 456</span> </div>
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<div class="line"><a id="l00457" name="l00457"></a><span class="lineno"> 457</span> <span class="comment">// Read data size.</span></div>
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<div class="line"><a id="l00458" name="l00458"></a><span class="lineno"> 458</span> T_SIZE size;</div>
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<div class="line"><a id="l00459" name="l00459"></a><span class="lineno"> 459</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="l00460" name="l00460"></a><span class="lineno"> 460</span> <span class="keywordflow">if</span> (!stream.good()) _Unlikely_ <span class="keywordflow">return</span> stream;</div>
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<div class="line"><a id="l00461" name="l00461"></a><span class="lineno"> 461</span> </div>
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<div class="line"><a id="l00462" name="l00462"></a><span class="lineno"> 462</span> <span class="comment">// Read data.</span></div>
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<div class="line"><a id="l00463" name="l00463"></a><span class="lineno"> 463</span> std::streamoff start = stream.tellg();</div>
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<div class="line"><a id="l00464" name="l00464"></a><span class="lineno"> 464</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="l00465" name="l00465"></a><span class="lineno"> 465</span> <span class="keywordflow">if</span> (!stream.good()) _Unlikely_ <span class="keywordflow">return</span> stream;</div>
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<div class="line"><a id="l00466" name="l00466"></a><span class="lineno"> 466</span> </div>
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<div class="line"><a id="l00467" name="l00467"></a><span class="lineno"> 467</span> size += <span class="keyword">static_cast<</span>T_SIZE<span class="keyword">></span>((ALIGN - size) % ALIGN);</div>
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<div class="line"><a id="l00468" name="l00468"></a><span class="lineno"> 468</span> stream.seekg(start + size);</div>
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<div class="line"><a id="l00469" name="l00469"></a><span class="lineno"> 469</span> </div>
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<div class="line"><a id="l00470" name="l00470"></a><span class="lineno"> 470</span> <span class="keywordflow">return</span> stream;</div>
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<div class="line"><a id="l00471" name="l00471"></a><span class="lineno"> 471</span>}</div>
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<div class="line"><a id="l00472" name="l00472"></a><span class="lineno"> 472</span> </div>
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<div class="line"><a id="l00481" name="l00481"></a><span class="lineno"> 481</span><span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> T_ID, T_ID 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="l00482" name="l00482"></a><span class="lineno"> 482</span><a class="code hl_class" href="classstdex_1_1stream_1_1basic__file.html">stdex::stream::basic_file</a>& operator >>(_In_ <a class="code hl_class" href="classstdex_1_1stream_1_1basic__file.html">stdex::stream::basic_file</a>& stream, _In_ <a class="code hl_class" href="classstdex_1_1idrec_1_1record.html">stdex::idrec::record<T, T_ID, ID, T_SIZE, ALIGN></a> r)</div>
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<div class="line"><a id="l00483" name="l00483"></a><span class="lineno"> 483</span>{</div>
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<div class="line"><a id="l00484" name="l00484"></a><span class="lineno"> 484</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.</span></div>
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<div class="line"><a id="l00485" name="l00485"></a><span class="lineno"> 485</span> </div>
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<div class="line"><a id="l00486" name="l00486"></a><span class="lineno"> 486</span> <span class="comment">// Read data size.</span></div>
|
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<div class="line"><a id="l00487" name="l00487"></a><span class="lineno"> 487</span> T_SIZE size;</div>
|
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<div class="line"><a id="l00488" name="l00488"></a><span class="lineno"> 488</span> stream >> size;</div>
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<div class="line"><a id="l00489" name="l00489"></a><span class="lineno"> 489</span> <span class="keywordflow">if</span> (!stream.ok()) _Unlikely_ <span class="keywordflow">return</span> stream;</div>
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<div class="line"><a id="l00490" name="l00490"></a><span class="lineno"> 490</span> </div>
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<div class="line"><a id="l00491" name="l00491"></a><span class="lineno"> 491</span> <span class="comment">// Read data.</span></div>
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<div class="line"><a id="l00492" name="l00492"></a><span class="lineno"> 492</span> <span class="keyword">auto</span> start = stream.tell();</div>
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<div class="line"><a id="l00493" name="l00493"></a><span class="lineno"> 493</span> {</div>
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<div class="line"><a id="l00494" name="l00494"></a><span class="lineno"> 494</span> <a class="code hl_class" href="classstdex_1_1stream_1_1limiter.html">stdex::stream::limiter</a> limiter(stream, size, size);</div>
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<div class="line"><a id="l00495" name="l00495"></a><span class="lineno"> 495</span> limiter >> r.data;</div>
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<div class="line"><a id="l00496" name="l00496"></a><span class="lineno"> 496</span> <span class="keywordflow">if</span> (!limiter.ok()) _Unlikely_ <span class="keywordflow">return</span> stream;</div>
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<div class="line"><a id="l00497" name="l00497"></a><span class="lineno"> 497</span> }</div>
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<div class="line"><a id="l00498" name="l00498"></a><span class="lineno"> 498</span> </div>
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<div class="line"><a id="l00499" name="l00499"></a><span class="lineno"> 499</span> size += <span class="keyword">static_cast<</span>T_SIZE<span class="keyword">></span>((ALIGN - size) % ALIGN);</div>
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<div class="line"><a id="l00500" name="l00500"></a><span class="lineno"> 500</span> stream.seek(start + size);</div>
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<div class="line"><a id="l00501" name="l00501"></a><span class="lineno"> 501</span> </div>
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<div class="line"><a id="l00502" name="l00502"></a><span class="lineno"> 502</span> <span class="keywordflow">return</span> stream;</div>
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<div class="line"><a id="l00503" name="l00503"></a><span class="lineno"> 503</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.hpp:280</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_a0498a09948194be47553433c87121ec4"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#a0498a09948194be47553433c87121ec4">stdex::idrec::record::open</a></div><div class="ttdeci">static stdex::stream::foff_t open(stdex::stream::basic_file &stream)</div><div class="ttdoc">Writes record header.</div><div class="ttdef"><b>Definition</b> idrec.hpp:336</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_a0a91b8bf08dbd79ac40b4361a9faee2a"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#a0a91b8bf08dbd79ac40b4361a9faee2a">stdex::idrec::record::close</a></div><div class="ttdeci">static stdex::stream::foff_t close(stdex::stream::basic_file &stream, stdex::stream::foff_t start)</div><div class="ttdoc">Updates record header.</div><div class="ttdef"><b>Definition</b> idrec.hpp:362</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_a19523040d07119055884a7a2f8ef25fd"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#a19523040d07119055884a7a2f8ef25fd">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.hpp:377</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_a1ab09fae53142836c958a63137fb37cb"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#a1ab09fae53142836c958a63137fb37cb">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.hpp:397</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_a24e54541a476b01e332290c57a495926"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#a24e54541a476b01e332290c57a495926">stdex::idrec::record::id</a></div><div class="ttdeci">static const T_ID id()</div><div class="ttdoc">Returns record id.</div><div class="ttdef"><b>Definition</b> idrec.hpp:299</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_a379d9eeac3c52375982ba75df33604ca"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#a379d9eeac3c52375982ba75df33604ca">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.hpp:324</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_a3d4bff1bf080fb8cb3960b5b5018392c"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#a3d4bff1bf080fb8cb3960b5b5018392c">stdex::idrec::record::operator=</a></div><div class="ttdeci">const record< T, T_ID, ID, T_SIZE, ALIGN > & operator=(const record< T, T_ID, ID, T_SIZE, ALIGN > &r)</div><div class="ttdoc">Assignment operator.</div><div class="ttdef"><b>Definition</b> idrec.hpp:311</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_a611da3801d9e7215324c9a5992a27f39"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#a611da3801d9e7215324c9a5992a27f39">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.hpp:287</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_a6566678aa326da5b2d84c38b76d1c195"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#a6566678aa326da5b2d84c38b76d1c195">stdex::idrec::record::find</a></div><div class="ttdeci">static bool find(stdex::stream::basic_file &stream, stdex::stream::foff_t end=stdex::stream::foff_max)</div><div class="ttdoc">Finds record data.</div><div class="ttdef"><b>Definition</b> idrec.hpp:392</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_ab84a09093bd1a2cbf720329b84c6d73b"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#ab84a09093bd1a2cbf720329b84c6d73b">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.hpp:294</div></div>
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<div class="ttc" id="aclassstdex_1_1idrec_1_1record_html_ae63ba9487daaf8ec39dfe7dd04c13cc9"><div class="ttname"><a href="classstdex_1_1idrec_1_1record.html#ae63ba9487daaf8ec39dfe7dd04c13cc9">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.hpp:349</div></div>
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<div class="ttc" id="aclassstdex_1_1stream_1_1basic__file_html"><div class="ttname"><a href="classstdex_1_1stream_1_1basic__file.html">stdex::stream::basic_file</a></div><div class="ttdoc">Basic seekable stream operations.</div><div class="ttdef"><b>Definition</b> stream.hpp:696</div></div>
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<div class="ttc" id="aclassstdex_1_1stream_1_1limiter_html"><div class="ttname"><a href="classstdex_1_1stream_1_1limiter.html">stdex::stream::limiter</a></div><div class="ttdoc">Limits reading from/writing to stream to a predefined number of bytes.</div><div class="ttdef"><b>Definition</b> stream.hpp:1415</div></div>
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