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<div class="headertitle"><div class="title">mapping.hpp</div></div>
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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 © 2023-2024 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 <algorithm></span></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include <vector></span></div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> </div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="keyword">namespace </span>stdex</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="l00017" name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">template</span> <<span class="keyword">class</span> T></div>
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<div class="foldopen" id="foldopen00018" data-start="{" data-end="};">
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"><a class="line" href="structstdex_1_1mapping.html"> 18</a></span> <span class="keyword">struct </span><a class="code hl_struct" href="structstdex_1_1mapping.html">mapping</a> {</div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> T from; <span class="comment">// index in source string</span></div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> T to; <span class="comment">// index in destination string</span></div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> </div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"><a class="line" href="structstdex_1_1mapping.html#a9634b5ef182398e24b61c2ca78cc8e46"> 25</a></span> <a class="code hl_function" href="structstdex_1_1mapping.html#a9634b5ef182398e24b61c2ca78cc8e46">mapping</a>() : from(0), to(0) {}</div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
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<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"><a class="line" href="structstdex_1_1mapping.html#a48069d4eb38c276e856d650075f6c3bd"> 32</a></span> <a class="code hl_function" href="structstdex_1_1mapping.html#a48069d4eb38c276e856d650075f6c3bd">mapping</a>(_In_ T x) : from(x), to(x) {}</div>
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<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> </div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"><a class="line" href="structstdex_1_1mapping.html#ae72436dbc2b54e2062822cd7772de830"> 40</a></span> <a class="code hl_function" href="structstdex_1_1mapping.html#ae72436dbc2b54e2062822cd7772de830">mapping</a>(_In_ T _from, _In_ T _to) : from(_from), to(_to) {}</div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> </div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"><a class="line" href="structstdex_1_1mapping.html#a6d9fa746849e2ea27f53e40b8b44fb46"> 49</a></span> <span class="keywordtype">bool</span> <a class="code hl_function" href="structstdex_1_1mapping.html#a6d9fa746849e2ea27f53e40b8b44fb46">operator==</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structstdex_1_1mapping.html">mapping</a>& other)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> from == other.from && to == other.to; }</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="l00058" name="l00058"></a><span class="lineno"><a class="line" href="structstdex_1_1mapping.html#a99e44b5840a155e5ce366d440cbe234b"> 58</a></span> <span class="keywordtype">bool</span> <a class="code hl_function" href="structstdex_1_1mapping.html#a99e44b5840a155e5ce366d440cbe234b">operator!=</a>(<span class="keyword">const</span> <a class="code hl_struct" href="structstdex_1_1mapping.html">mapping</a>& other)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> !<a class="code hl_function" href="structstdex_1_1mapping.html#a6d9fa746849e2ea27f53e40b8b44fb46">operator==</a>(other); }</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> </div>
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<div class="foldopen" id="foldopen00067" data-start="{" data-end="}">
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"><a class="line" href="structstdex_1_1mapping.html#aae8f3e1dfb76f608f4be0e12999ed37e"> 67</a></span> <a class="code hl_struct" href="structstdex_1_1mapping.html">mapping</a> <a class="code hl_function" href="structstdex_1_1mapping.html#aae8f3e1dfb76f608f4be0e12999ed37e">operator+</a>(_In_ <span class="keyword">const</span> <a class="code hl_struct" href="structstdex_1_1mapping.html">mapping</a>& other)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span><span class="keyword"> </span>{</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="keywordflow">return</span> <a class="code hl_function" href="structstdex_1_1mapping.html#a9634b5ef182398e24b61c2ca78cc8e46">mapping</a>(from + other.from, to + other.to);</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> }</div>
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</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> </div>
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<div class="foldopen" id="foldopen00075" data-start="{" data-end="}">
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"><a class="line" href="structstdex_1_1mapping.html#af7e4cd4543549b9b33ddc5d883034afb"> 75</a></span> <span class="keywordtype">void</span> <a class="code hl_function" href="structstdex_1_1mapping.html#af7e4cd4543549b9b33ddc5d883034afb">invert</a>()</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> {</div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> T tmp = from;</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> from = to;</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> to = tmp;</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> }</div>
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</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>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> </div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> AX = std::allocator<mapping<T>>></div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="keyword">using </span>mapping_vector = std::vector<mapping<T>, AX>;</div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> </div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> AX = std::allocator<mapping<T>>></div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> T dst2src(_In_ <span class="keyword">const</span> std::vector<<a class="code hl_struct" href="structstdex_1_1mapping.html">stdex::mapping<T></a>, AX>& mapping, _In_ T to)</div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> {</div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> <span class="keywordflow">if</span> (mapping.empty())</div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> <span class="keywordflow">return</span> to;</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="keywordflow">for</span> (<span class="keywordtype">size_t</span> l = 0, r = mapping.size();;) {</div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> <span class="keywordflow">if</span> (l < r) {</div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> <span class="keyword">auto</span> m = (l + r) / 2;</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keyword">const</span> <span class="keyword">auto</span>& el = mapping[m];</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> <span class="keywordflow">if</span> (to < el.to) r = m;</div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (el.to < to) l = m + 1;</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="keywordflow">else</span> <span class="keywordflow">return</span> el.from;</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="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (l) {</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> <span class="keyword">const</span> <span class="keyword">auto</span>& el = mapping[l - 1];</div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> <span class="keywordflow">return</span> el.from + (to - el.to);</div>
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<div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span> }</div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span> <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span> <span class="keyword">const</span> <span class="keyword">auto</span>& el = mapping[0];</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> <span class="keywordflow">return</span> std::min<T>(to, el.from);</div>
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<div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> }</div>
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<div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> }</div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> }</div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> </div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span> <span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> AX = std::allocator<mapping<T>>></div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> T dst2src(_In_ <span class="keyword">const</span> std::vector<<a class="code hl_struct" href="structstdex_1_1mapping.html">stdex::mapping<T></a>, AX>& mapping, _In_ T to, _Inout_opt_ <span class="keywordtype">size_t</span>& m)</div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span> {</div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordflow">if</span> (mapping.empty())</div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span> <span class="keywordflow">return</span> to;</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> <span class="keywordtype">size_t</span> l, r;</div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> {</div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keyword">const</span> <span class="keyword">auto</span>& el = mapping[m];</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keywordflow">if</span> (to < el.to) {</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> l = 0;</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> r = m;</div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> }</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (el.to < to) {</div>
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<div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <span class="keywordflow">if</span> (mapping.size() - 1 <= m || to < mapping[m + 1].to)</div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> <span class="keywordflow">return</span> el.from + (to - el.to);</div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> l = m + 1;</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> r = mapping.size();</div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> }</div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> <span class="keywordflow">else</span></div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="keywordflow">return</span> el.from;</div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> }</div>
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<div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> </div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> <span class="keywordflow">for</span> (;;) {</div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> <span class="keywordflow">if</span> (l < r) {</div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> m = (l + r) / 2;</div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> <span class="keyword">const</span> <span class="keyword">auto</span>& el = mapping[m];</div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="keywordflow">if</span> (to < el.to) r = m;</div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (el.to < to) l = m + 1;</div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> <span class="keywordflow">else</span> <span class="keywordflow">return</span> el.from;</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">else</span> <span class="keywordflow">if</span> (l) {</div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> <span class="keyword">const</span> <span class="keyword">auto</span>& el = mapping[m = l - 1];</div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> <span class="keywordflow">return</span> el.from + (to - el.to);</div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> }</div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <span class="keyword">const</span> <span class="keyword">auto</span>& el = mapping[m = 0];</div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> <span class="keywordflow">return</span> std::min<T>(to, el.from);</div>
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<div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> }</div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> }</div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> }</div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> </div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> AX = std::allocator<mapping<T>>></div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> T src2dst(_In_ <span class="keyword">const</span> std::vector<<a class="code hl_struct" href="structstdex_1_1mapping.html">stdex::mapping<T></a>, AX>& mapping, _In_ T from)</div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> {</div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> <span class="keywordflow">if</span> (mapping.empty())</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> <span class="keywordflow">return</span> from;</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">for</span> (<span class="keywordtype">size_t</span> l = 0, r = mapping.size();;) {</div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> <span class="keywordflow">if</span> (l < r) {</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> <span class="keyword">auto</span> m = (l + r) / 2;</div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> <span class="keyword">const</span> <span class="keyword">auto</span>& el = mapping[m];</div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> <span class="keywordflow">if</span> (from < el.from) r = m;</div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (el.from < from) l = m + 1;</div>
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<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> <span class="keywordflow">else</span> <span class="keywordflow">return</span> el.to;</div>
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<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> }</div>
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<div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (l) {</div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <span class="keyword">const</span> <span class="keyword">auto</span>& el = mapping[l - 1];</div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="keywordflow">return</span> el.to + (from - el.from);</div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> }</div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> <span class="keyword">const</span> <span class="keyword">auto</span>& el = mapping[0];</div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> <span class="keywordflow">return</span> std::min<T>(from, el.to);</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> }</div>
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<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> }</div>
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<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> </div>
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<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> <span class="keyword">template</span> <<span class="keyword">class</span> T, <span class="keyword">class</span> AX = std::allocator<mapping<T>>></div>
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<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> T src2dst(_In_ <span class="keyword">const</span> std::vector<<a class="code hl_struct" href="structstdex_1_1mapping.html">stdex::mapping<T></a>, AX>& mapping, _In_ T from, _Inout_opt_ <span class="keywordtype">size_t</span>& m)</div>
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<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> {</div>
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> <span class="keywordflow">if</span> (mapping.empty())</div>
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<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span> <span class="keywordflow">return</span> from;</div>
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<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> </div>
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<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> <span class="keywordtype">size_t</span> l, r;</div>
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<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> {</div>
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<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> <span class="keyword">const</span> <span class="keyword">auto</span>& el = mapping[m];</div>
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<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> <span class="keywordflow">if</span> (from < el.from) {</div>
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<div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> l = 0;</div>
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<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> r = m;</div>
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<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> }</div>
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<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (el.from < from) {</div>
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<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> <span class="keywordflow">if</span> (mapping.size() - 1 <= m || from < mapping[m + 1].from)</div>
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<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> <span class="keywordflow">return</span> el.to + (from - el.from);</div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> l = m + 1;</div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> r = mapping.size();</div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> }</div>
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<div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> <span class="keywordflow">else</span></div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> <span class="keywordflow">return</span> el.to;</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> </div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> <span class="keywordflow">for</span> (;;) {</div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> <span class="keywordflow">if</span> (l < r) {</div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> m = (l + r) / 2;</div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> <span class="keyword">const</span> <span class="keyword">auto</span>& el = mapping[m];</div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> <span class="keywordflow">if</span> (from < el.from) r = m;</div>
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<div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (el.from < from) l = m + 1;</div>
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<div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> <span class="keywordflow">else</span> <span class="keywordflow">return</span> el.to;</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="l00243" name="l00243"></a><span class="lineno"> 243</span> <span class="keywordflow">else</span> <span class="keywordflow">if</span> (l) {</div>
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<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> <span class="keyword">const</span> <span class="keyword">auto</span>& el = mapping[m = l - 1];</div>
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<div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> <span class="keywordflow">return</span> el.to + (from - el.from);</div>
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<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> }</div>
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<div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> <span class="keywordflow">else</span> {</div>
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<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> <span class="keyword">const</span> <span class="keyword">auto</span>& el = mapping[m = 0];</div>
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<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> <span class="keywordflow">return</span> std::min<T>(from, el.to);</div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> }</div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> }</div>
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> }</div>
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<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span>}</div>
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<div class="ttc" id="astructstdex_1_1mapping_html"><div class="ttname"><a href="structstdex_1_1mapping.html">stdex::mapping</a></div><div class="ttdoc">Maps index in source string to index in destination string.</div><div class="ttdef"><b>Definition</b> mapping.hpp:18</div></div>
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<div class="ttc" id="astructstdex_1_1mapping_html_a48069d4eb38c276e856d650075f6c3bd"><div class="ttname"><a href="structstdex_1_1mapping.html#a48069d4eb38c276e856d650075f6c3bd">stdex::mapping::mapping</a></div><div class="ttdeci">mapping(T x)</div><div class="ttdoc">Constructs an id mapping.</div><div class="ttdef"><b>Definition</b> mapping.hpp:32</div></div>
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<div class="ttc" id="astructstdex_1_1mapping_html_a6d9fa746849e2ea27f53e40b8b44fb46"><div class="ttname"><a href="structstdex_1_1mapping.html#a6d9fa746849e2ea27f53e40b8b44fb46">stdex::mapping::operator==</a></div><div class="ttdeci">bool operator==(const mapping &other) const</div><div class="ttdoc">Are mappings identical?</div><div class="ttdef"><b>Definition</b> mapping.hpp:49</div></div>
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<div class="ttc" id="astructstdex_1_1mapping_html_a9634b5ef182398e24b61c2ca78cc8e46"><div class="ttname"><a href="structstdex_1_1mapping.html#a9634b5ef182398e24b61c2ca78cc8e46">stdex::mapping::mapping</a></div><div class="ttdeci">mapping()</div><div class="ttdoc">Constructs a zero to zero mapping.</div><div class="ttdef"><b>Definition</b> mapping.hpp:25</div></div>
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<div class="ttc" id="astructstdex_1_1mapping_html_a99e44b5840a155e5ce366d440cbe234b"><div class="ttname"><a href="structstdex_1_1mapping.html#a99e44b5840a155e5ce366d440cbe234b">stdex::mapping::operator!=</a></div><div class="ttdeci">bool operator!=(const mapping &other) const</div><div class="ttdoc">Are mappings different?</div><div class="ttdef"><b>Definition</b> mapping.hpp:58</div></div>
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<div class="ttc" id="astructstdex_1_1mapping_html_aae8f3e1dfb76f608f4be0e12999ed37e"><div class="ttname"><a href="structstdex_1_1mapping.html#aae8f3e1dfb76f608f4be0e12999ed37e">stdex::mapping::operator+</a></div><div class="ttdeci">mapping operator+(const mapping &other) const</div><div class="ttdoc">Adds two mappings by components.</div><div class="ttdef"><b>Definition</b> mapping.hpp:67</div></div>
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<div class="ttc" id="astructstdex_1_1mapping_html_ae72436dbc2b54e2062822cd7772de830"><div class="ttname"><a href="structstdex_1_1mapping.html#ae72436dbc2b54e2062822cd7772de830">stdex::mapping::mapping</a></div><div class="ttdeci">mapping(T _from, T _to)</div><div class="ttdoc">Constructs a mapping.</div><div class="ttdef"><b>Definition</b> mapping.hpp:40</div></div>
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<div class="ttc" id="astructstdex_1_1mapping_html_af7e4cd4543549b9b33ddc5d883034afb"><div class="ttname"><a href="structstdex_1_1mapping.html#af7e4cd4543549b9b33ddc5d883034afb">stdex::mapping::invert</a></div><div class="ttdeci">void invert()</div><div class="ttdoc">Reverses source and destination indexes.</div><div class="ttdef"><b>Definition</b> mapping.hpp:75</div></div>
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