283 lines
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283 lines
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<div id="projectbrief">A C++11 library for serialization</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_d445d0c097210746bce3afd9a77bcad9.html">cereal</a></li><li class="navelem"><a class="el" href="dir_68487379e3503fe9d657f67af15dc5dc.html">details</a></li> </ul>
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<div class="title">helpers.hpp</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> Copyright (c) 2013, Randolph Voorhies, Shane Grant</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> All rights reserved.</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"></span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> Redistribution and use in source and binary forms, with or without</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> modification, are permitted provided that the following conditions are met:</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * Redistributions of source code must retain the above copyright</span></div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> notice, this list of conditions and the following disclaimer.</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * Redistributions in binary form must reproduce the above copyright</span></div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> notice, this list of conditions and the following disclaimer in the</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> documentation and/or other materials provided with the distribution.</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * Neither the name of cereal nor the</span></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> names of its contributors may be used to endorse or promote products</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> derived from this software without specific prior written permission.</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"></span></div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND</span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE</span></div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY</span></div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES</span></div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span></div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND</span></div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"> ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT</span></div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS</span></div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">*/</span></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#ifndef CEREAL_DETAILS_HELPERS_HPP_</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor"></span><span class="preprocessor">#define CEREAL_DETAILS_HELPERS_HPP_</span></div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <type_traits></span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#include <cstdint></span></div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <utility></span></div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">namespace </span>cereal</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> {</div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="comment">// forward decls</span></div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keyword">class </span>BinaryOutputArchive;</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">class </span>BinaryInputArchive;</div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="comment">// ######################################################################</span></div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keyword">namespace </span>detail</div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  {</div>
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<div class="line"><a name="l00043"></a><span class="lineno"><a class="code" href="structcereal_1_1detail_1_1NameValuePairCore.html"> 43</a></span>  <span class="keyword">struct </span><a class="code" href="structcereal_1_1detail_1_1NameValuePairCore.html">NameValuePairCore</a> {};</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  }</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> </div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keyword">template</span> <<span class="keyword">class</span> T></div>
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<div class="line"><a name="l00110"></a><span class="lineno"><a class="code" href="classcereal_1_1NameValuePair.html"> 110</a></span>  <span class="keyword">class </span><a class="code" href="classcereal_1_1NameValuePair.html" title="For holding name value pairs.">NameValuePair</a> : <a class="code" href="structcereal_1_1detail_1_1NameValuePairCore.html">detail::NameValuePairCore</a></div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  {</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="comment">// If we get passed an RValue, we'll just make a local copy if it here</span></div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="comment">// otherwise, we store a reference</span></div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">using</span> DT = <span class="keyword">typename</span> std::decay<T>::type;</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keyword">using</span> Type = <span class="keyword">typename</span> std::conditional<std::is_rvalue_reference<T>::value,</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  DT,</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keyword">typename</span> std::add_lvalue_reference<DT>::type>::type;</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="comment">// prevent nested nvps</span></div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  static_assert( !std::is_base_of<detail::NameValuePairCore, T>::value,</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="stringliteral">"Cannot pair a name to a NameValuePair"</span> );</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div>
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<div class="line"><a name="l00132"></a><span class="lineno"><a class="code" href="classcereal_1_1NameValuePair.html#ada17c8f6c9895a9d2d7fa7859e48537c"> 132</a></span>  <a class="code" href="classcereal_1_1NameValuePair.html#ada17c8f6c9895a9d2d7fa7859e48537c" title="Constructs a new NameValuePair.">NameValuePair</a>( <span class="keywordtype">char</span> <span class="keyword">const</span> * n, T && v ) : name(n), value(const_cast<Type>(v)) {}</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div>
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<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  <span class="keywordtype">char</span> <span class="keyword">const</span> * name;</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  Type value;</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  };</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> </div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="keyword">template</span><<span class="keyword">class</span> Archive, <span class="keyword">class</span> T> <span class="keyword">inline</span></div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keyword">typename</span></div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  std::enable_if<std::is_same<Archive, ::cereal::BinaryInputArchive>::value ||</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  std::is_same<Archive, ::cereal::BinaryOutputArchive>::value,</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  T && >::type</div>
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<div class="line"><a name="l00146"></a><span class="lineno"><a class="code" href="classcereal_1_1NameValuePair.html#a7b7b9b5e674a363fb8fd9baca2ca73ce"> 146</a></span>  make_nvp( <span class="keyword">const</span> <span class="keywordtype">char</span> *, T && value )</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  {</div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keywordflow">return</span> std::forward<T>(value);</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  }</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keyword">template</span><<span class="keyword">class</span> Archive, <span class="keyword">class</span> T> <span class="keyword">inline</span></div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keyword">typename</span></div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  std::enable_if<!std::is_same<Archive, ::cereal::BinaryInputArchive>::value &&</div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  !std::is_same<Archive, ::cereal::BinaryOutputArchive>::value,</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <a class="code" href="classcereal_1_1NameValuePair.html" title="For holding name value pairs.">NameValuePair<T></a> >::type</div>
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<div class="line"><a name="l00159"></a><span class="lineno"><a class="code" href="classcereal_1_1NameValuePair.html#a4f76432ed952dbfdc7e7973fb0d16ac1"> 159</a></span>  make_nvp( <span class="keyword">const</span> <span class="keywordtype">char</span> * name, T && value)</div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  {</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordflow">return</span> {name, std::forward<T>(value)};</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  }</div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> <span class="preprocessor">#define _CEREAL_NVP(name, value) ::cereal::make_nvp<Archive>(name, value)</span></div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="preprocessor"></span></div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="comment">// ######################################################################</span></div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <span class="comment"></span></div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <span class="keyword">template</span> <<span class="keyword">class</span> T></div>
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<div class="line"><a name="l00178"></a><span class="lineno"><a class="code" href="structcereal_1_1BinaryData.html"> 178</a></span>  <span class="keyword">struct </span><a class="code" href="structcereal_1_1BinaryData.html" title="A wrapper around data that can be serialized in a binary fashion.">BinaryData</a></div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  {</div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keyword">using</span> <a class="code" href="structcereal_1_1BinaryData.html#a5da7601825183538439d32e77436af88">PT</a> = <span class="keyword">typename</span> std::conditional<std::is_const<typename std::remove_pointer<T>::type>::value,</div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keyword">const</span> <span class="keywordtype">void</span> *,</div>
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<div class="line"><a name="l00184"></a><span class="lineno"><a class="code" href="structcereal_1_1BinaryData.html#a5da7601825183538439d32e77436af88"> 184</a></span>  <span class="keywordtype">void</span> *>::type;</div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> </div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <a class="code" href="structcereal_1_1BinaryData.html" title="A wrapper around data that can be serialized in a binary fashion.">BinaryData</a>( T && d, uint64_t s ) : <a class="code" href="structcereal_1_1BinaryData.html#a0bac12b9a4e870dfb89a73d6731f9109" title="pointer to beginning of data">data</a>(d), <a class="code" href="structcereal_1_1BinaryData.html#a6c5b15fee4187ac9d948081a3ea9cfe3" title="size in bytes">size</a>(s) {}</div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> </div>
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<div class="line"><a name="l00188"></a><span class="lineno"><a class="code" href="structcereal_1_1BinaryData.html#a0bac12b9a4e870dfb89a73d6731f9109"> 188</a></span>  <a class="code" href="structcereal_1_1BinaryData.html#a5da7601825183538439d32e77436af88">PT</a> <a class="code" href="structcereal_1_1BinaryData.html#a0bac12b9a4e870dfb89a73d6731f9109" title="pointer to beginning of data">data</a>; </div>
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<div class="line"><a name="l00189"></a><span class="lineno"><a class="code" href="structcereal_1_1BinaryData.html#a6c5b15fee4187ac9d948081a3ea9cfe3"> 189</a></span>  uint64_t <a class="code" href="structcereal_1_1BinaryData.html#a6c5b15fee4187ac9d948081a3ea9cfe3" title="size in bytes">size</a>; </div>
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  };</div>
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> </div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="comment">// ######################################################################</span></div>
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="keyword">namespace </span>detail</div>
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  {</div>
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="comment">// base classes for type checking</span></div>
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<div class="line"><a name="l00196"></a><span class="lineno"><a class="code" href="structcereal_1_1detail_1_1OutputArchiveBase.html"> 196</a></span>  <span class="keyword">struct </span><a class="code" href="structcereal_1_1detail_1_1OutputArchiveBase.html">OutputArchiveBase</a> {};</div>
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<div class="line"><a name="l00197"></a><span class="lineno"><a class="code" href="structcereal_1_1detail_1_1InputArchiveBase.html"> 197</a></span>  <span class="keyword">struct </span><a class="code" href="structcereal_1_1detail_1_1InputArchiveBase.html">InputArchiveBase</a> {};</div>
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<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> </div>
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="comment">// forward decls for polymorphic support</span></div>
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<div class="line"><a name="l00200"></a><span class="lineno"><a class="code" href="structcereal_1_1detail_1_1polymorphic__serialization__support.html"> 200</a></span>  <span class="keyword">template</span> <<span class="keyword">class</span> Archive, <span class="keyword">class</span> T> <span class="keyword">struct </span><a class="code" href="structcereal_1_1detail_1_1polymorphic__serialization__support.html">polymorphic_serialization_support</a>;</div>
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  <span class="keyword">struct </span><a class="code" href="structcereal_1_1detail_1_1adl__tag.html">adl_tag</a>;</div>
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<div class="line"><a name="l00202"></a><span class="lineno"> 202</span> </div>
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<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="comment">// used during saving pointers</span></div>
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<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t msb_32bit = 0x80000000;</div>
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<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keyword">static</span> <span class="keyword">const</span> int32_t msb2_32bit = 0x40000000;</div>
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  }</div>
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<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div>
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  <span class="comment">// ######################################################################</span></div>
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<div class="line"><a name="l00210"></a><span class="lineno"> 210</span> <span class="comment"></span></div>
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<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="keyword">template</span> <<span class="keyword">class</span> T></div>
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<div class="line"><a name="l00218"></a><span class="lineno"><a class="code" href="classcereal_1_1SizeTag.html"> 218</a></span>  <span class="keyword">class </span><a class="code" href="classcereal_1_1SizeTag.html" title="A wrapper around size metadata.">SizeTag</a></div>
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  {</div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  <span class="comment">// If we get passed an RValue, we'll just make a local copy if it here</span></div>
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<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="comment">// otherwise, we store a reference</span></div>
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<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <span class="keyword">using</span> DT = <span class="keyword">typename</span> std::decay<T>::type;</div>
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<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <span class="keyword">using</span> Type = <span class="keyword">typename</span> std::conditional<std::is_rvalue_reference<T>::value,</div>
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<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  DT,</div>
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<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <span class="keyword">typename</span> std::add_lvalue_reference<DT>::type>::type;</div>
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<div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div>
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<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <a class="code" href="classcereal_1_1SizeTag.html" title="A wrapper around size metadata.">SizeTag</a>( T && sz ) : size(const_cast<Type>(sz)) {}</div>
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<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> </div>
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<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  Type size;</div>
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<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  };</div>
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<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> </div>
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<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="comment">// ######################################################################</span></div>
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<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> <span class="comment"></span></div>
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<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keyword">template</span> <<span class="keyword">class</span> Key, <span class="keyword">class</span> Value></div>
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<div class="line"><a name="l00256"></a><span class="lineno"><a class="code" href="structcereal_1_1MapItem.html"> 256</a></span>  <span class="keyword">struct </span><a class="code" href="structcereal_1_1MapItem.html" title="A wrapper around a key and value for serializing data into maps.">MapItem</a></div>
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<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  {</div>
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<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  <span class="keyword">using</span> DecayKey = <span class="keyword">typename</span> std::decay<Key>::type;</div>
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<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  <span class="keyword">using</span> KeyType = <span class="keyword">typename</span> std::conditional<</div>
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<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>  std::is_rvalue_reference<Key>::value,</div>
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<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  DecayKey,</div>
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<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keyword">typename</span> std::add_lvalue_reference<DecayKey>::type>::type;</div>
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<div class="line"><a name="l00263"></a><span class="lineno"> 263</span> </div>
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<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  <span class="keyword">using</span> DecayValue = <span class="keyword">typename</span> std::decay<Value>::type;</div>
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<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keyword">using</span> ValueType = <span class="keyword">typename</span> std::conditional<</div>
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<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  std::is_rvalue_reference<Value>::value,</div>
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<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  DecayValue,</div>
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<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  <span class="keyword">typename</span> std::add_lvalue_reference<DecayValue>::type>::type;</div>
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<div class="line"><a name="l00269"></a><span class="lineno"> 269</span> </div>
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<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> </div>
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<div class="line"><a name="l00272"></a><span class="lineno"><a class="code" href="structcereal_1_1MapItem.html#aee3d63b7cb1ab67edc60b2234e6f92db"> 272</a></span>  <a class="code" href="structcereal_1_1MapItem.html#aee3d63b7cb1ab67edc60b2234e6f92db" title="Construct a MapItem from a key and a value.">MapItem</a>( Key && key, Value && value ) : key(const_cast<KeyType>(key)), value(const_cast<ValueType>(value)) {}</div>
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<div class="line"><a name="l00273"></a><span class="lineno"> 273</span> </div>
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<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>  KeyType key;</div>
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<div class="line"><a name="l00275"></a><span class="lineno"> 275</span>  ValueType value;</div>
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<div class="line"><a name="l00276"></a><span class="lineno"> 276</span> </div>
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<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>  <span class="keyword">template</span> <<span class="keyword">class</span> Archive> <span class="keyword">inline</span></div>
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<div class="line"><a name="l00279"></a><span class="lineno"><a class="code" href="structcereal_1_1MapItem.html#a4d09988754e8e86d8f40bee73421d329"> 279</a></span>  <span class="keywordtype">void</span> <a class="code" href="structcereal_1_1MapItem.html#a4d09988754e8e86d8f40bee73421d329" title="Serialize the MapItem with the NVPs "key" and "value".">serialize</a>(Archive & archive)</div>
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<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>  {</div>
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<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  archive( make_nvp<Archive>(<span class="stringliteral">"key"</span>, key),</div>
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<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>  make_nvp<Archive>(<span class="stringliteral">"value"</span>, value) );</div>
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<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  }</div>
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<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>  };</div>
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<div class="line"><a name="l00285"></a><span class="lineno"> 285</span> </div>
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<div class="line"><a name="l00287"></a><span class="lineno"> 287</span> </div>
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<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  <span class="keyword">template</span> <<span class="keyword">class</span> KeyType, <span class="keyword">class</span> ValueType> <span class="keyword">inline</span></div>
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<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>  MapItem<KeyType, ValueType> make_map_item(KeyType && key, ValueType && value)</div>
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<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>  {</div>
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<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>  <span class="keywordflow">return</span> {std::forward<KeyType>(key), std::forward<ValueType>(value)};</div>
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<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  }</div>
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<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> } <span class="comment">// namespace cereal</span></div>
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<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> </div>
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<div class="line"><a name="l00296"></a><span class="lineno"> 296</span> <span class="preprocessor">#endif // CEREAL_DETAILS_HELPERS_HPP_</span></div>
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<!-- start footer part -->
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Generated on Fri Jul 5 2013 20:54:18 for cereal by  <a href="http://www.doxygen.org/index.html">
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</a> 1.8.3.1
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