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+<div class="title">buffer.hpp</div> </div>
+</div><!--header-->
+<div class="contents">
+<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">// Copyright (c) 2020 Egor Tensin &lt;Egor.Tensin@gmail.com&gt;</span></div>
+<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">// This file is part of the &quot;winapi-common&quot; project.</span></div>
+<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// For details, see https://github.com/egor-tensin/winapi-common.</span></div>
+<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">// Distributed under the MIT License.</span></div>
+<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160; </div>
+<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="preprocessor">#pragma once</span></div>
+<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160; </div>
+<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="preprocessor">#include &lt;cstddef&gt;</span></div>
+<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="preprocessor">#include &lt;cstring&gt;</span></div>
+<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="preprocessor">#include &lt;initializer_list&gt;</span></div>
+<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor">#include &lt;sstream&gt;</span></div>
+<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="preprocessor">#include &lt;stdexcept&gt;</span></div>
+<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &lt;string&gt;</span></div>
+<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="preprocessor">#include &lt;utility&gt;</span></div>
+<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div>
+<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160; </div>
+<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="keyword">namespace </span>winapi {</div>
+<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160; </div>
+<div class="line"><a name="l00024"></a><span class="lineno"><a class="line" href="classwinapi_1_1Buffer.html"> 24</a></span>&#160;<span class="keyword">class </span><a class="code" href="classwinapi_1_1Buffer.html">Buffer</a> : <span class="keyword">public</span> std::vector&lt;unsigned char&gt; {</div>
+<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="keyword">public</span>:</div>
+<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160; <span class="keyword">typedef</span> std::vector&lt;unsigned char&gt; Parent;</div>
+<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; </div>
+<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160; <a class="code" href="classwinapi_1_1Buffer.html">Buffer</a>() = <span class="keywordflow">default</span>;</div>
+<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160; </div>
+<div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="classwinapi_1_1Buffer.html#abb43686e0f2e5798bc7b2c0e47722458"> 31</a></span>&#160; <a class="code" href="classwinapi_1_1Buffer.html#abb43686e0f2e5798bc7b2c0e47722458">Buffer</a>(std::initializer_list&lt;unsigned char&gt; lst) : Parent{lst} {}</div>
+<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; </div>
+<div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="classwinapi_1_1Buffer.html#a46241e1fd3443c383c3930329ca9e0dd"> 34</a></span>&#160; <span class="keyword">explicit</span> <a class="code" href="classwinapi_1_1Buffer.html#a46241e1fd3443c383c3930329ca9e0dd">Buffer</a>(Parent&amp;&amp; src) : Parent{std::move(src)} {}</div>
+<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; </div>
+<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <span class="keyword">template</span> &lt;<span class="keyword">typename</span> CharT&gt;</div>
+<div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="classwinapi_1_1Buffer.html#aa3566a7ac7025a2f88abe116082b55a7"> 38</a></span>&#160; <span class="keyword">explicit</span> <a class="code" href="classwinapi_1_1Buffer.html#aa3566a7ac7025a2f88abe116082b55a7">Buffer</a>(<span class="keyword">const</span> std::basic_string&lt;CharT&gt;&amp; src) {</div>
+<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; <a class="code" href="classwinapi_1_1Buffer.html#a0b2fad438202fbcfd4946baf3f879f59">set</a>(src);</div>
+<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; }</div>
+<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; </div>
+<div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="classwinapi_1_1Buffer.html#ab3649ebbd0cbc4b20d02b660a52be89c"> 43</a></span>&#160; <a class="code" href="classwinapi_1_1Buffer.html#ab3649ebbd0cbc4b20d02b660a52be89c">Buffer</a>(<span class="keyword">const</span> <span class="keywordtype">void</span>* src, std::size_t nb) { <a class="code" href="classwinapi_1_1Buffer.html#a0b2fad438202fbcfd4946baf3f879f59">set</a>(src, nb); }</div>
+<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; </div>
+<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; <span class="keyword">template</span> &lt;<span class="keyword">typename</span> CharT&gt;</div>
+<div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="classwinapi_1_1Buffer.html#a0b2fad438202fbcfd4946baf3f879f59"> 47</a></span>&#160; <span class="keywordtype">void</span> <a class="code" href="classwinapi_1_1Buffer.html#a0b2fad438202fbcfd4946baf3f879f59">set</a>(<span class="keyword">const</span> std::basic_string&lt;CharT&gt;&amp; src) {</div>
+<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; <a class="code" href="classwinapi_1_1Buffer.html#a0b2fad438202fbcfd4946baf3f879f59">set</a>(src.c_str(), src.length() * <span class="keyword">sizeof</span>(std::basic_string&lt;CharT&gt;::char_type));</div>
+<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; }</div>
+<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; </div>
+<div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="classwinapi_1_1Buffer.html#ab09aa9c5075579510da463b4148ee610"> 52</a></span>&#160; <span class="keywordtype">void</span> <a class="code" href="classwinapi_1_1Buffer.html#ab09aa9c5075579510da463b4148ee610">set</a>(<span class="keyword">const</span> <span class="keywordtype">void</span>* src, std::size_t nb) {</div>
+<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; resize(nb);</div>
+<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; std::memcpy(data(), src, nb);</div>
+<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; }</div>
+<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; </div>
+<div class="line"><a name="l00058"></a><span class="lineno"><a class="line" href="classwinapi_1_1Buffer.html#afd8abcecacbcc9fdb4e5825068ebf561"> 58</a></span>&#160; std::string <a class="code" href="classwinapi_1_1Buffer.html#afd8abcecacbcc9fdb4e5825068ebf561">as_utf8</a>()<span class="keyword"> const </span>{</div>
+<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; <span class="keyword">const</span> <span class="keyword">auto</span> c_str = <span class="keyword">reinterpret_cast&lt;</span><span class="keyword">const </span><span class="keywordtype">char</span>*<span class="keyword">&gt;</span>(data());</div>
+<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; <span class="keyword">const</span> <span class="keyword">auto</span> nb = size();</div>
+<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; <span class="keyword">const</span> <span class="keyword">auto</span> nch = nb;</div>
+<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <span class="keywordflow">return</span> {c_str, nch};</div>
+<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; }</div>
+<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; </div>
+<div class="line"><a name="l00066"></a><span class="lineno"><a class="line" href="classwinapi_1_1Buffer.html#ac5ca93f1935f2259db0d68e1884897d5"> 66</a></span>&#160; std::wstring <a class="code" href="classwinapi_1_1Buffer.html#ac5ca93f1935f2259db0d68e1884897d5">as_utf16</a>()<span class="keyword"> const </span>{</div>
+<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <span class="keyword">const</span> <span class="keyword">auto</span> c_str = <span class="keyword">reinterpret_cast&lt;</span><span class="keyword">const </span><span class="keywordtype">wchar_t</span>*<span class="keyword">&gt;</span>(data());</div>
+<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; <span class="keyword">const</span> <span class="keyword">auto</span> nb = size();</div>
+<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <span class="keywordflow">if</span> (nb % 2 != 0) {</div>
+<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; std::ostringstream oss;</div>
+<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; oss &lt;&lt; <span class="stringliteral">&quot;Buffer size invalid at &quot;</span> &lt;&lt; nb &lt;&lt; <span class="stringliteral">&quot; bytes&quot;</span>;</div>
+<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; <span class="keywordflow">throw</span> std::runtime_error{oss.str()};</div>
+<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; }</div>
+<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; <span class="keyword">const</span> <span class="keyword">auto</span> nch = nb / 2;</div>
+<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; <span class="keywordflow">return</span> {c_str, nch};</div>
+<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; }</div>
+<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; </div>
+<div class="line"><a name="l00079"></a><span class="lineno"><a class="line" href="classwinapi_1_1Buffer.html#a303645b281fb4f1a4d9e84f1d1370182"> 79</a></span>&#160; <span class="keywordtype">void</span> <a class="code" href="classwinapi_1_1Buffer.html#a303645b281fb4f1a4d9e84f1d1370182">add</a>(<span class="keyword">const</span> <a class="code" href="classwinapi_1_1Buffer.html">Buffer</a>&amp; src) {</div>
+<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="keyword">const</span> <span class="keyword">auto</span> nb = size();</div>
+<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; resize(nb + src.size());</div>
+<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160; std::memcpy(data() + nb, src.data(), src.size());</div>
+<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; }</div>
+<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160;};</div>
+<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; </div>
+<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;} <span class="comment">// namespace winapi</span></div>
+<div class="ttc" id="aclasswinapi_1_1Buffer_html"><div class="ttname"><a href="classwinapi_1_1Buffer.html">winapi::Buffer</a></div><div class="ttdoc">Binary data container.</div><div class="ttdef"><b>Definition:</b> <a href="buffer_8hpp_source.html#l00024">buffer.hpp:24</a></div></div>
+<div class="ttc" id="aclasswinapi_1_1Buffer_html_a0b2fad438202fbcfd4946baf3f879f59"><div class="ttname"><a href="classwinapi_1_1Buffer.html#a0b2fad438202fbcfd4946baf3f879f59">winapi::Buffer::set</a></div><div class="ttdeci">void set(const std::basic_string&lt; CharT &gt; &amp;src)</div><div class="ttdef"><b>Definition:</b> <a href="buffer_8hpp_source.html#l00047">buffer.hpp:47</a></div></div>
+<div class="ttc" id="aclasswinapi_1_1Buffer_html_a303645b281fb4f1a4d9e84f1d1370182"><div class="ttname"><a href="classwinapi_1_1Buffer.html#a303645b281fb4f1a4d9e84f1d1370182">winapi::Buffer::add</a></div><div class="ttdeci">void add(const Buffer &amp;src)</div><div class="ttdef"><b>Definition:</b> <a href="buffer_8hpp_source.html#l00079">buffer.hpp:79</a></div></div>
+<div class="ttc" id="aclasswinapi_1_1Buffer_html_a46241e1fd3443c383c3930329ca9e0dd"><div class="ttname"><a href="classwinapi_1_1Buffer.html#a46241e1fd3443c383c3930329ca9e0dd">winapi::Buffer::Buffer</a></div><div class="ttdeci">Buffer(Parent &amp;&amp;src)</div><div class="ttdef"><b>Definition:</b> <a href="buffer_8hpp_source.html#l00034">buffer.hpp:34</a></div></div>
+<div class="ttc" id="aclasswinapi_1_1Buffer_html_aa3566a7ac7025a2f88abe116082b55a7"><div class="ttname"><a href="classwinapi_1_1Buffer.html#aa3566a7ac7025a2f88abe116082b55a7">winapi::Buffer::Buffer</a></div><div class="ttdeci">Buffer(const std::basic_string&lt; CharT &gt; &amp;src)</div><div class="ttdef"><b>Definition:</b> <a href="buffer_8hpp_source.html#l00038">buffer.hpp:38</a></div></div>
+<div class="ttc" id="aclasswinapi_1_1Buffer_html_ab09aa9c5075579510da463b4148ee610"><div class="ttname"><a href="classwinapi_1_1Buffer.html#ab09aa9c5075579510da463b4148ee610">winapi::Buffer::set</a></div><div class="ttdeci">void set(const void *src, std::size_t nb)</div><div class="ttdef"><b>Definition:</b> <a href="buffer_8hpp_source.html#l00052">buffer.hpp:52</a></div></div>
+<div class="ttc" id="aclasswinapi_1_1Buffer_html_ab3649ebbd0cbc4b20d02b660a52be89c"><div class="ttname"><a href="classwinapi_1_1Buffer.html#ab3649ebbd0cbc4b20d02b660a52be89c">winapi::Buffer::Buffer</a></div><div class="ttdeci">Buffer(const void *src, std::size_t nb)</div><div class="ttdef"><b>Definition:</b> <a href="buffer_8hpp_source.html#l00043">buffer.hpp:43</a></div></div>
+<div class="ttc" id="aclasswinapi_1_1Buffer_html_abb43686e0f2e5798bc7b2c0e47722458"><div class="ttname"><a href="classwinapi_1_1Buffer.html#abb43686e0f2e5798bc7b2c0e47722458">winapi::Buffer::Buffer</a></div><div class="ttdeci">Buffer(std::initializer_list&lt; unsigned char &gt; lst)</div><div class="ttdef"><b>Definition:</b> <a href="buffer_8hpp_source.html#l00031">buffer.hpp:31</a></div></div>
+<div class="ttc" id="aclasswinapi_1_1Buffer_html_ac5ca93f1935f2259db0d68e1884897d5"><div class="ttname"><a href="classwinapi_1_1Buffer.html#ac5ca93f1935f2259db0d68e1884897d5">winapi::Buffer::as_utf16</a></div><div class="ttdeci">std::wstring as_utf16() const</div><div class="ttdef"><b>Definition:</b> <a href="buffer_8hpp_source.html#l00066">buffer.hpp:66</a></div></div>
+<div class="ttc" id="aclasswinapi_1_1Buffer_html_afd8abcecacbcc9fdb4e5825068ebf561"><div class="ttname"><a href="classwinapi_1_1Buffer.html#afd8abcecacbcc9fdb4e5825068ebf561">winapi::Buffer::as_utf8</a></div><div class="ttdeci">std::string as_utf8() const</div><div class="ttdef"><b>Definition:</b> <a href="buffer_8hpp_source.html#l00058">buffer.hpp:58</a></div></div>
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