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<div class="title">LexicalCast.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">//------------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> This file is part of Beast: https://github.com/vinniefalco/Beast</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> Copyright 2013, Vinnie Falco &lt;vinnie.falco@gmail.com&gt;</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment"> Permission to use, copy, modify, and/or distribute this software for any</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> purpose with or without fee is hereby granted, provided that the above</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"> copyright notice and this permission notice appear in all copies.</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment"></span> </div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment"> THE SOFTWARE IS PROVIDED &quot;AS IS&quot; AND THE AUTHOR DISCLAIMS ALL WARRANTIES</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment"> WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment"> MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment"> ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment"> WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment"> ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="comment"> OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="comment">*/</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="comment">//==============================================================================</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160; </div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="preprocessor">#ifndef BEAST_MODULE_CORE_TEXT_LEXICALCAST_H_INCLUDED</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#define BEAST_MODULE_CORE_TEXT_LEXICALCAST_H_INCLUDED</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160; </div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/algorithm.html">algorithm</a>&gt;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/cassert.html">cassert</a>&gt;</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/cerrno.html">cerrno</a>&gt;</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/charconv.html">charconv</a>&gt;</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/cstdlib.html">cstdlib</a>&gt;</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/iterator.html">iterator</a>&gt;</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/limits.html">limits</a>&gt;</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/string.html">string</a>&gt;</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/type_traits.html">type_traits</a>&gt;</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/typeinfo.html">typeinfo</a>&gt;</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;<span class="preprocessor">#include &lt;<a class="codeRef" href="http://en.cppreference.com/w/cpp/header/utility.html">utility</a>&gt;</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; </div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacebeast.html">beast</a> {</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; </div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;<span class="keyword">namespace </span>detail {</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; </div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160;<span class="comment">// These specializatons get called by the non-member functions to do the work</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">class</span> Out, <span class="keyword">class</span> In&gt;</div>
<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="structbeast_1_1detail_1_1LexicalCast.html"> 41</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structbeast_1_1detail_1_1LexicalCast.html">LexicalCast</a>;</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; </div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160;<span class="comment">// conversion to std::string</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">class</span> In&gt;</div>
<div class="line"><a name="l00045"></a><span class="lineno"><a class="line" href="structbeast_1_1detail_1_1LexicalCast_3_01std_1_1string_00_01In_01_4.html"> 45</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structbeast_1_1detail_1_1LexicalCast.html">LexicalCast</a>&lt;<a class="code" href="namespacestd.html">std</a>::string, In&gt;</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160;{</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; <span class="keyword">explicit</span> <a class="code" href="structbeast_1_1detail_1_1LexicalCast.html">LexicalCast</a>() = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; </div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; <span class="keyword">template</span> &lt;<span class="keyword">class</span> Arithmetic = In&gt;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/enable_if.html">std::enable_if_t&lt;std::is_arithmetic_v&lt;Arithmetic&gt;</a>, <span class="keywordtype">bool</span>&gt;</div>
<div class="line"><a name="l00051"></a><span class="lineno"><a class="line" href="structbeast_1_1detail_1_1LexicalCast_3_01std_1_1string_00_01In_01_4.html#a9011ec7c5676a9404b7fa71e736d640b"> 51</a></span>&#160; <a class="code" href="structbeast_1_1detail_1_1LexicalCast_3_01std_1_1string_00_01In_01_4.html#a9011ec7c5676a9404b7fa71e736d640b">operator()</a>(<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a>&amp; out, Arithmetic in)</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; {</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; out = <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/to_string.html">std::to_string</a>(in);</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</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="l00057"></a><span class="lineno"> 57</span>&#160; <span class="keyword">template</span> &lt;<span class="keyword">class</span> Enumeration = In&gt;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/enable_if.html">std::enable_if_t&lt;std::is_enum_v&lt;Enumeration&gt;</a>, <span class="keywordtype">bool</span>&gt;</div>
<div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="structbeast_1_1detail_1_1LexicalCast_3_01std_1_1string_00_01In_01_4.html#af7b8a6eed91152133d7b85ac04430363"> 59</a></span>&#160; <a class="code" href="structbeast_1_1detail_1_1LexicalCast_3_01std_1_1string_00_01In_01_4.html#af7b8a6eed91152133d7b85ac04430363">operator()</a>(<a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a>&amp; out, Enumeration in)</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; {</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; out = <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string/to_string.html">std::to_string</a>(</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; <span class="keyword">static_cast&lt;</span><a class="codeRef" href="http://en.cppreference.com/w/cpp/types/underlying_type.html">std::underlying_type_t&lt;Enumeration&gt;</a><span class="keyword">&gt;</span>(in));</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; }</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160;};</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; </div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160;<span class="comment">// Parse std::string to number</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">class</span> Out&gt;</div>
<div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="structbeast_1_1detail_1_1LexicalCast_3_01Out_00_01std_1_1string_01_4.html"> 69</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structbeast_1_1detail_1_1LexicalCast.html">LexicalCast</a>&lt;Out, <a class="code" href="namespacestd.html">std</a>::string&gt;</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160;{</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; <span class="keyword">explicit</span> <a class="code" href="structbeast_1_1detail_1_1LexicalCast.html">LexicalCast</a>() = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; </div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; static_assert(</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; std::is_integral_v&lt;Out&gt;,</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; <span class="stringliteral">&quot;beast::LexicalCast can only be used with integral types&quot;</span>);</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; <span class="keyword">template</span> &lt;<span class="keyword">class</span> Integral = Out&gt;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/enable_if.html">std::enable_if_t</a>&lt;</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; std::is_integral_v&lt;Integral&gt; &amp;&amp; !std::is_same_v&lt;Integral, bool&gt;,</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; <span class="keywordtype">bool</span>&gt;</div>
<div class="line"><a name="l00081"></a><span class="lineno"><a class="line" href="structbeast_1_1detail_1_1LexicalCast_3_01Out_00_01std_1_1string_01_4.html#a96cba3e784d4f9d5cdf5c53f456bd20d"> 81</a></span>&#160; <a class="code" href="structbeast_1_1detail_1_1LexicalCast_3_01Out_00_01std_1_1string_01_4.html#a96cba3e784d4f9d5cdf5c53f456bd20d">operator()</a>(Integral&amp; out, <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> <span class="keyword">const</span>&amp; in)<span class="keyword"> const</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160;<span class="keyword"> </span>{</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <span class="keyword">auto</span> first = in.data();</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <span class="keyword">auto</span> last = in.data() + in.size();</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="keywordflow">if</span> (first != last &amp;&amp; *first == <span class="charliteral">&#39;+&#39;</span>)</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160; ++first;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; </div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <span class="keyword">auto</span> ret = <a class="codeRef" href="http://en.cppreference.com/w/cpp/utility/from_chars.html">std::from_chars</a>(first, last, out);</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; </div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; <span class="keywordflow">return</span> ret.ec == <a class="codeRef" href="http://en.cppreference.com/w/cpp/error/errc.html">std::errc</a>() &amp;&amp; ret.ptr == last;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; }</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; </div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="keywordtype">bool</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"><a class="line" href="structbeast_1_1detail_1_1LexicalCast_3_01Out_00_01std_1_1string_01_4.html#a856f7e1ddf2ca2ea9ad0afaabcf83de9"> 95</a></span>&#160; <a class="code" href="structbeast_1_1detail_1_1LexicalCast_3_01Out_00_01std_1_1string_01_4.html#a856f7e1ddf2ca2ea9ad0afaabcf83de9">operator()</a>(<span class="keywordtype">bool</span>&amp; out, <a class="codeRef" href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a> in)<span class="keyword"> const</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160;<span class="keyword"> </span>{</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <span class="comment">// Convert the input to lowercase</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; <a class="codeRef" href="http://en.cppreference.com/w/cpp/algorithm/transform.html">std::transform</a>(in.begin(), in.end(), in.begin(), [](<span class="keyword">auto</span> c) {</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; return std::tolower(static_cast&lt;unsigned char&gt;(c));</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; });</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; </div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; <span class="keywordflow">if</span> (in == <span class="stringliteral">&quot;1&quot;</span> || in == <span class="stringliteral">&quot;true&quot;</span>)</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160; {</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; out = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; }</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; </div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160; <span class="keywordflow">if</span> (in == <span class="stringliteral">&quot;0&quot;</span> || in == <span class="stringliteral">&quot;false&quot;</span>)</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; {</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; out = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; }</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; </div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; }</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160;};</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; </div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160;<span class="comment">//------------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160; </div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>&#160;<span class="comment">// Conversion from null terminated char const*</span></div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">class</span> Out&gt;</div>
<div class="line"><a name="l00122"></a><span class="lineno"><a class="line" href="structbeast_1_1detail_1_1LexicalCast_3_01Out_00_01char_01const_01_5_01_4.html"> 122</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structbeast_1_1detail_1_1LexicalCast.html">LexicalCast</a>&lt;Out, char const*&gt;</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160;{</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; <span class="keyword">explicit</span> <a class="code" href="structbeast_1_1detail_1_1LexicalCast.html">LexicalCast</a>() = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; </div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; <span class="keywordtype">bool</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"><a class="line" href="structbeast_1_1detail_1_1LexicalCast_3_01Out_00_01char_01const_01_5_01_4.html#a9cd177969727c4f05ebfc958d15a74f0"> 127</a></span>&#160; <a class="code" href="structbeast_1_1detail_1_1LexicalCast_3_01Out_00_01char_01const_01_5_01_4.html#a9cd177969727c4f05ebfc958d15a74f0">operator()</a>(Out&amp; out, <span class="keywordtype">char</span> <span class="keyword">const</span>* in)<span class="keyword"> const</span></div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>&#160;<span class="keyword"> </span>{</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160; <span class="keywordflow">return</span> <a class="code" href="structbeast_1_1detail_1_1LexicalCast_3_01Out_00_01std_1_1string_01_4.html">LexicalCast&lt;Out, std::string&gt;</a>()(out, in);</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; }</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>&#160;};</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>&#160; </div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>&#160;<span class="comment">// Conversion from null terminated char*</span></div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160;<span class="comment">// The string is not modified.</span></div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">class</span> Out&gt;</div>
<div class="line"><a name="l00136"></a><span class="lineno"><a class="line" href="structbeast_1_1detail_1_1LexicalCast_3_01Out_00_01char_01_5_01_4.html"> 136</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structbeast_1_1detail_1_1LexicalCast.html">LexicalCast</a>&lt;Out, char*&gt;</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160;{</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; <span class="keyword">explicit</span> <a class="code" href="structbeast_1_1detail_1_1LexicalCast.html">LexicalCast</a>() = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; </div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; <span class="keywordtype">bool</span></div>
<div class="line"><a name="l00141"></a><span class="lineno"><a class="line" href="structbeast_1_1detail_1_1LexicalCast_3_01Out_00_01char_01_5_01_4.html#ab51af7f68ba7886952227b4b34e3b8e3"> 141</a></span>&#160; <a class="code" href="structbeast_1_1detail_1_1LexicalCast_3_01Out_00_01char_01_5_01_4.html#ab51af7f68ba7886952227b4b34e3b8e3">operator()</a>(Out&amp; out, <span class="keywordtype">char</span>* in)<span class="keyword"> const</span></div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160;<span class="keyword"> </span>{</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; <span class="keywordflow">return</span> <a class="code" href="structbeast_1_1detail_1_1LexicalCast_3_01Out_00_01std_1_1string_01_4.html">LexicalCast&lt;Out, std::string&gt;</a>()(out, in);</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; }</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160;};</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; </div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160;} <span class="comment">// namespace detail</span></div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160; </div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160;<span class="comment">//------------------------------------------------------------------------------</span></div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; </div>
<div class="line"><a name="l00154"></a><span class="lineno"><a class="line" href="structbeast_1_1BadLexicalCast.html"> 154</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structbeast_1_1BadLexicalCast.html">BadLexicalCast</a> : <span class="keyword">public</span> <a class="codeRef" href="http://en.cppreference.com/w/cpp/types/bad_cast.html">std::bad_cast</a></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160;{</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <span class="keyword">explicit</span> <a class="code" href="structbeast_1_1BadLexicalCast.html#ad2a88637429ced890600c345e040384a">BadLexicalCast</a>() = <span class="keywordflow">default</span>;</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160;};</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; </div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">class</span> Out, <span class="keyword">class</span> In&gt;</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160;<span class="keywordtype">bool</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"><a class="line" href="namespacebeast.html#aeb241ed2f4422ea57283956ca58c5d42"> 164</a></span>&#160;<a class="code" href="namespacebeast.html#aeb241ed2f4422ea57283956ca58c5d42">lexicalCastChecked</a>(Out&amp; out, In in)</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160;{</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; <span class="keywordflow">return</span> <a class="code" href="structbeast_1_1detail_1_1LexicalCast.html">detail::LexicalCast&lt;Out, In&gt;</a>()(out, in);</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160;}</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; </div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">class</span> Out, <span class="keyword">class</span> In&gt;</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160;Out</div>
<div class="line"><a name="l00177"></a><span class="lineno"><a class="line" href="namespacebeast.html#a0aecda88ba6663d0c9f5c25a7d41722b"> 177</a></span>&#160;<a class="code" href="namespacebeast.html#a0aecda88ba6663d0c9f5c25a7d41722b">lexicalCastThrow</a>(In in)</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160;{</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <span class="keywordflow">if</span> (Out out; <a class="code" href="namespacebeast.html#aeb241ed2f4422ea57283956ca58c5d42">lexicalCastChecked</a>(out, in))</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; <span class="keywordflow">return</span> out;</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; </div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; <span class="keywordflow">throw</span> <a class="code" href="structbeast_1_1BadLexicalCast.html">BadLexicalCast</a>();</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160;}</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; </div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">class</span> Out, <span class="keyword">class</span> In&gt;</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160;Out</div>
<div class="line"><a name="l00192"></a><span class="lineno"><a class="line" href="namespacebeast.html#a67b02c0e029d6e8394e8832e74c95f27"> 192</a></span>&#160;<a class="code" href="namespacebeast.html#a67b02c0e029d6e8394e8832e74c95f27">lexicalCast</a>(In in, Out defaultValue = Out())</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160;{</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; <span class="keywordflow">if</span> (Out out; <a class="code" href="namespacebeast.html#aeb241ed2f4422ea57283956ca58c5d42">lexicalCastChecked</a>(out, in))</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; <span class="keywordflow">return</span> out;</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; </div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; <span class="keywordflow">return</span> defaultValue;</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160;}</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160; </div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160;} <span class="comment">// namespace beast</span></div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160; </div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160;<span class="preprocessor">#endif</span></div>
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<div class="ttc" id="abasic_string_html"><div class="ttname"><a href="http://en.cppreference.com/w/cpp/string/basic_string.html">std::string</a></div><div class="ttdoc">STL class.</div></div>
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<div class="ttc" id="astructbeast_1_1BadLexicalCast_html"><div class="ttname"><a href="structbeast_1_1BadLexicalCast.html">beast::BadLexicalCast</a></div><div class="ttdoc">Thrown when a conversion is not possible with LexicalCast.</div><div class="ttdef"><b>Definition:</b> <a href="LexicalCast_8h_source.html#l00154">LexicalCast.h:154</a></div></div>
<div class="ttc" id="astructbeast_1_1detail_1_1LexicalCast_3_01Out_00_01char_01_5_01_4_html_ab51af7f68ba7886952227b4b34e3b8e3"><div class="ttname"><a href="structbeast_1_1detail_1_1LexicalCast_3_01Out_00_01char_01_5_01_4.html#ab51af7f68ba7886952227b4b34e3b8e3">beast::detail::LexicalCast&lt; Out, char * &gt;::operator()</a></div><div class="ttdeci">bool operator()(Out &amp;out, char *in) const</div><div class="ttdef"><b>Definition:</b> <a href="LexicalCast_8h_source.html#l00141">LexicalCast.h:141</a></div></div>
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