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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_0bc14b2fb119a11b6a0f32f4d350db61.html">geos</a></li><li class="navelem"><a class="el" href="dir_0aaf6d686f05540f7376cb30062cd3e1.html">math</a></li> </ul>
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<a href="DD_8h.html">Go to the documentation of this file.</a><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"> * GEOS - Geometry Engine Open Source</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> * http://geos.osgeo.org</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"> * Copyright (C) 2020 Crunchy Data</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"> * This is free software; you can redistribute and/or modify it under</span></div><div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment"> * the terms of the GNU Lesser General Public Licence as published</span></div><div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment"> * by the Free Software Foundation.</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment"> * See the COPYING file for more information.</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment"> **********************************************************************/</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160;<span class="preprocessor">#ifndef GEOS_MATH_DD_H</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160;<span class="preprocessor">#define GEOS_MATH_DD_H</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160;</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160;<span class="preprocessor">#include &lt;cmath&gt;</span></div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacegeos.html">geos</a> {</div><div class="line"><a name="l00099"></a><span class="lineno"><a class="line" href="namespacegeos_1_1math.html"> 99</a></span>&#160;<span class="keyword">namespace </span>math { <span class="comment">// geos.math</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160;</div><div class="line"><a name="l00108"></a><span class="lineno"><a class="line" href="classgeos_1_1math_1_1DD.html"> 108</a></span>&#160;<span class="keyword">class </span><a class="code" href="export_8h.html#ae36df939090171f6e9a28a8cb6254fea">GEOS_DLL</a> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> {</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; <span class="keyword">private</span>:</div><div class="line"><a name="l00110"></a><span class="lineno"><a class="line" href="classgeos_1_1math_1_1DD.html#a29f4e3f25af1b65eeb815ac18fa1053e"> 110</a></span>&#160; <span class="keyword">static</span> constexpr <span class="keywordtype">double</span> SPLIT = 134217729.0; <span class="comment">// 2^27+1, for IEEE double</span></div><div class="line"><a name="l00111"></a><span class="lineno"><a class="line" href="classgeos_1_1math_1_1DD.html#aaa59bf60d2fde07a68d9de0ba9726fa6"> 111</a></span>&#160; <span class="keywordtype">double</span> <a class="code" href="classgeos_1_1math_1_1DD.html#aaa59bf60d2fde07a68d9de0ba9726fa6">hi</a>;</div><div class="line"><a name="l00112"></a><span class="lineno"><a class="line" href="classgeos_1_1math_1_1DD.html#abfaa5a874a136fe4e9559727011f42a2"> 112</a></span>&#160; <span class="keywordtype">double</span> <a class="code" href="classgeos_1_1math_1_1DD.html#abfaa5a874a136fe4e9559727011f42a2">lo</a>;</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="keywordtype">int</span> signum() <span class="keyword">const</span>;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>&#160; <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> rint() <span class="keyword">const</span>;</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="keyword">public</span>:</div><div class="line"><a name="l00119"></a><span class="lineno"><a class="line" href="classgeos_1_1math_1_1DD.html#a3a82f98375e163367f0b046f8358f17d"> 119</a></span>&#160; <a class="code" href="classgeos_1_1math_1_1DD.html#a3a82f98375e163367f0b046f8358f17d">DD</a>(<span class="keywordtype">double</span> p_hi, <span class="keywordtype">double</span> p_lo) : hi(p_hi), lo(p_lo) {};</div><div class="line"><a name="l00120"></a><span class="lineno"><a class="line" href="classgeos_1_1math_1_1DD.html#afd785798e59d70b09b18c1f40d0b2d7c"> 120</a></span>&#160; <a class="code" href="classgeos_1_1math_1_1DD.html#afd785798e59d70b09b18c1f40d0b2d7c">DD</a>(<span class="keywordtype">double</span> x) : hi(x), lo(0.0) {};</div><div class="line"><a name="l00121"></a><span class="lineno"><a class="line" href="classgeos_1_1math_1_1DD.html#a53dd84b6acc02072100ae1ea6d1c472d"> 121</a></span>&#160; <a class="code" href="classgeos_1_1math_1_1DD.html#a53dd84b6acc02072100ae1ea6d1c472d">DD</a>() : hi(0.0), lo(0.0) {};</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160;</div><div class="line"><a name="l00123"></a><span class="lineno"><a class="line" href="classgeos_1_1math_1_1DD.html#ab8cb1204f17678c39147d187093ff51b"> 123</a></span>&#160; <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1math_1_1DD.html#ab8cb1204f17678c39147d187093ff51b">operator==</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;rhs)<span class="keyword"> const</span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160;<span class="keyword"> </span>{</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; <span class="keywordflow">return</span> hi == rhs.<a class="code" href="classgeos_1_1math_1_1DD.html#aaa59bf60d2fde07a68d9de0ba9726fa6">hi</a> &amp;&amp; lo == rhs.<a class="code" href="classgeos_1_1math_1_1DD.html#abfaa5a874a136fe4e9559727011f42a2">lo</a>;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160; }</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>&#160;</div><div class="line"><a name="l00128"></a><span class="lineno"><a class="line" href="classgeos_1_1math_1_1DD.html#a3533eeabcfcf0865f4a565fb35a8646f"> 128</a></span>&#160; <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1math_1_1DD.html#a3533eeabcfcf0865f4a565fb35a8646f">operator!=</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;rhs)<span class="keyword"> const</span></div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>&#160;<span class="keyword"> </span>{</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>&#160; <span class="keywordflow">return</span> hi != rhs.<a class="code" href="classgeos_1_1math_1_1DD.html#aaa59bf60d2fde07a68d9de0ba9726fa6">hi</a> || lo != rhs.<a class="code" href="classgeos_1_1math_1_1DD.html#abfaa5a874a136fe4e9559727011f42a2">lo</a>;</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"><a class="line" href="classgeos_1_1math_1_1DD.html#af3bd55d23bf51d9c3fc630e0390e7d36"> 133</a></span>&#160; <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1math_1_1DD.html#af3bd55d23bf51d9c3fc630e0390e7d36">operator&lt;</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;rhs)<span class="keyword"> const</span></div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160;<span class="keyword"> </span>{</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; <span class="keywordflow">return</span> (hi &lt; rhs.<a class="code" href="classgeos_1_1math_1_1DD.html#aaa59bf60d2fde07a68d9de0ba9726fa6">hi</a>) || (hi == rhs.<a class="code" href="classgeos_1_1math_1_1DD.html#aaa59bf60d2fde07a68d9de0ba9726fa6">hi</a> &amp;&amp; lo &lt; rhs.<a class="code" href="classgeos_1_1math_1_1DD.html#abfaa5a874a136fe4e9559727011f42a2">lo</a>);</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; }</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"><a class="line" href="classgeos_1_1math_1_1DD.html#a9eacf68ff929f10bfe2be37b43af3881"> 138</a></span>&#160; <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1math_1_1DD.html#a9eacf68ff929f10bfe2be37b43af3881">operator&lt;=</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;rhs)<span class="keyword"> const</span></div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160;<span class="keyword"> </span>{</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; <span class="keywordflow">return</span> (hi &lt; rhs.<a class="code" href="classgeos_1_1math_1_1DD.html#aaa59bf60d2fde07a68d9de0ba9726fa6">hi</a>) || (hi == rhs.<a class="code" href="classgeos_1_1math_1_1DD.html#aaa59bf60d2fde07a68d9de0ba9726fa6">hi</a> &amp;&amp; lo &lt;= rhs.<a class="code" href="classgeos_1_1math_1_1DD.html#abfaa5a874a136fe4e9559727011f42a2">lo</a>);</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; }</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160;</div><div class="line"><a name="l00143"></a><span class="lineno"><a class="line" href="classgeos_1_1math_1_1DD.html#a58fc925ca5d5c99a0eeff828ad2bc36b"> 143</a></span>&#160; <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1math_1_1DD.html#a58fc925ca5d5c99a0eeff828ad2bc36b">operator&gt;</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;rhs)<span class="keyword"> const</span></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160;<span class="keyword"> </span>{</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160; <span class="keywordflow">return</span> (hi &gt; rhs.<a class="code" href="classgeos_1_1math_1_1DD.html#aaa59bf60d2fde07a68d9de0ba9726fa6">hi</a>) || (hi == rhs.<a class="code" href="classgeos_1_1math_1_1DD.html#aaa59bf60d2fde07a68d9de0ba9726fa6">hi</a> &amp;&amp; lo &gt; rhs.<a class="code" href="classgeos_1_1math_1_1DD.html#abfaa5a874a136fe4e9559727011f42a2">lo</a>);</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;</div><div class="line"><a name="l00148"></a><span class="lineno"><a class="line" href="classgeos_1_1math_1_1DD.html#a12a58d2751642dd9b6f32fb9bfc41793"> 148</a></span>&#160; <span class="keywordtype">bool</span> <a class="code" href="classgeos_1_1math_1_1DD.html#a12a58d2751642dd9b6f32fb9bfc41793">operator&gt;=</a>(<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;rhs)<span class="keyword"> const</span></div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>&#160;<span class="keyword"> </span>{</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; <span class="keywordflow">return</span> (hi &gt; rhs.<a class="code" href="classgeos_1_1math_1_1DD.html#aaa59bf60d2fde07a68d9de0ba9726fa6">hi</a>) || (hi == rhs.<a class="code" href="classgeos_1_1math_1_1DD.html#aaa59bf60d2fde07a68d9de0ba9726fa6">hi</a> &amp;&amp; lo &gt;= rhs.<a class="code" href="classgeos_1_1math_1_1DD.html#abfaa5a874a136fe4e9559727011f42a2">lo</a>);</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; }</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160;</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160; <span class="keyword">friend</span> <a class="code" href="export_8h.html#ae36df939090171f6e9a28a8cb6254fea">GEOS_DLL</a> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> operator+ (<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;lhs, <span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;rhs);</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <span class="keyword">friend</span> <a class="code" href="export_8h.html#ae36df939090171f6e9a28a8cb6254fea">GEOS_DLL</a> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> operator+ (<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;lhs, <span class="keywordtype">double</span> rhs);</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; <span class="keyword">friend</span> <a class="code" href="export_8h.html#ae36df939090171f6e9a28a8cb6254fea">GEOS_DLL</a> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> operator- (<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;lhs, <span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;rhs);</div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <span class="keyword">friend</span> <a class="code" href="export_8h.html#ae36df939090171f6e9a28a8cb6254fea">GEOS_DLL</a> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> operator- (<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;lhs, <span class="keywordtype">double</span> rhs);</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; <span class="keyword">friend</span> <a class="code" href="export_8h.html#ae36df939090171f6e9a28a8cb6254fea">GEOS_DLL</a> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> operator* (<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;lhs, <span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;rhs);</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160; <span class="keyword">friend</span> <a class="code" href="export_8h.html#ae36df939090171f6e9a28a8cb6254fea">GEOS_DLL</a> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> operator* (<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;lhs, <span class="keywordtype">double</span> rhs);</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; <span class="keyword">friend</span> <a class="code" href="export_8h.html#ae36df939090171f6e9a28a8cb6254fea">GEOS_DLL</a> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> operator/ (<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;lhs, <span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;rhs);</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; <span class="keyword">friend</span> <a class="code" href="export_8h.html#ae36df939090171f6e9a28a8cb6254fea">GEOS_DLL</a> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> operator/ (<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;lhs, <span class="keywordtype">double</span> rhs);</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160;</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; <span class="keyword">static</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> determinant(<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;x1, <span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;y1, <span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;x2, <span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;y2);</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160; <span class="keyword">static</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> determinant(<span class="keywordtype">double</span> x1, <span class="keywordtype">double</span> y1, <span class="keywordtype">double</span> x2, <span class="keywordtype">double</span> y2);</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <span class="keyword">static</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> abs(<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;d);</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; <span class="keyword">static</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> pow(<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;d, <span class="keywordtype">int</span> exp);</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; <span class="keyword">static</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> trunc(<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;d);</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; <span class="keywordtype">bool</span> isNaN() <span class="keyword">const</span>;</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; <span class="keywordtype">bool</span> isNegative() <span class="keyword">const</span>;</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; <span class="keywordtype">bool</span> isPositive() <span class="keyword">const</span>;</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <span class="keywordtype">bool</span> isZero() <span class="keyword">const</span>;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; <span class="keywordtype">double</span> doubleValue() <span class="keyword">const</span>;</div><div class="line"><a name="l00173"></a><span class="lineno"><a class="line" href="classgeos_1_1math_1_1DD.html#aaeb65cbdce4ce8253b75a1f27c4046f8"> 173</a></span>&#160; <span class="keywordtype">double</span> <a class="code" href="classgeos_1_1math_1_1DD.html#aaeb65cbdce4ce8253b75a1f27c4046f8">ToDouble</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> doubleValue(); }</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; <span class="keywordtype">int</span> intValue() <span class="keyword">const</span>;</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> negate() <span class="keyword">const</span>;</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> reciprocal() <span class="keyword">const</span>;</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> floor() <span class="keyword">const</span>;</div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> ceil() <span class="keyword">const</span>;</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160;</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; <span class="keywordtype">void</span> selfAdd(<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;d);</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="keywordtype">void</span> selfAdd(<span class="keywordtype">double</span> p_hi, <span class="keywordtype">double</span> p_lo);</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; <span class="keywordtype">void</span> selfAdd(<span class="keywordtype">double</span> y);</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; <span class="keywordtype">void</span> selfSubtract(<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;d);</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>&#160; <span class="keywordtype">void</span> selfSubtract(<span class="keywordtype">double</span> p_hi, <span class="keywordtype">double</span> p_lo);</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; <span class="keywordtype">void</span> selfSubtract(<span class="keywordtype">double</span> y);</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160;</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; <span class="keywordtype">void</span> selfMultiply(<span class="keywordtype">double</span> p_hi, <span class="keywordtype">double</span> p_lo);</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160; <span class="keywordtype">void</span> selfMultiply(<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;d);</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; <span class="keywordtype">void</span> selfMultiply(<span class="keywordtype">double</span> y);</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160;</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; <span class="keywordtype">void</span> selfDivide(<span class="keywordtype">double</span> p_hi, <span class="keywordtype">double</span> p_lo);</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; <span class="keywordtype">void</span> selfDivide(<span class="keyword">const</span> <a class="code" href="classgeos_1_1math_1_1DD.html">DD</a> &amp;d);</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; <span class="keywordtype">void</span> selfDivide(<span class="keywordtype">double</span> y);</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160;};</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;</div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160;} <span class="comment">// namespace geos::math</span></div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160;} <span class="comment">// namespace geos</span></div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160;</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 // GEOS_MATH_DD_H</span></div><div class="ttc" id="classgeos_1_1math_1_1DD_html_a12a58d2751642dd9b6f32fb9bfc41793"><div class="ttname"><a href="classgeos_1_1math_1_1DD.html#a12a58d2751642dd9b6f32fb9bfc41793">geos::math::DD::operator&gt;=</a></div><div class="ttdeci">bool operator&gt;=(const DD &amp;rhs) const </div><div class="ttdef"><b>Definition:</b> <a href="DD_8h_source.html#l00148">DD.h:148</a></div></div>
<div class="ttc" id="classgeos_1_1math_1_1DD_html_aaeb65cbdce4ce8253b75a1f27c4046f8"><div class="ttname"><a href="classgeos_1_1math_1_1DD.html#aaeb65cbdce4ce8253b75a1f27c4046f8">geos::math::DD::ToDouble</a></div><div class="ttdeci">double ToDouble() const </div><div class="ttdef"><b>Definition:</b> <a href="DD_8h_source.html#l00173">DD.h:173</a></div></div>
<div class="ttc" id="classgeos_1_1math_1_1DD_html_aaa59bf60d2fde07a68d9de0ba9726fa6"><div class="ttname"><a href="classgeos_1_1math_1_1DD.html#aaa59bf60d2fde07a68d9de0ba9726fa6">geos::math::DD::hi</a></div><div class="ttdeci">double hi</div><div class="ttdef"><b>Definition:</b> <a href="DD_8h_source.html#l00111">DD.h:111</a></div></div>
<div class="ttc" id="export_8h_html_ae36df939090171f6e9a28a8cb6254fea"><div class="ttname"><a href="export_8h.html#ae36df939090171f6e9a28a8cb6254fea">GEOS_DLL</a></div><div class="ttdeci">#define GEOS_DLL</div><div class="ttdef"><b>Definition:</b> <a href="export_8h_source.html#l00028">export.h:28</a></div></div>
<div class="ttc" id="classgeos_1_1math_1_1DD_html"><div class="ttname"><a href="classgeos_1_1math_1_1DD.html">geos::math::DD</a></div><div class="ttdoc">Wrapper for DoubleDouble higher precision mathematics operations. </div><div class="ttdef"><b>Definition:</b> <a href="DD_8h_source.html#l00108">DD.h:108</a></div></div>
<div class="ttc" id="classgeos_1_1math_1_1DD_html_a58fc925ca5d5c99a0eeff828ad2bc36b"><div class="ttname"><a href="classgeos_1_1math_1_1DD.html#a58fc925ca5d5c99a0eeff828ad2bc36b">geos::math::DD::operator&gt;</a></div><div class="ttdeci">bool operator&gt;(const DD &amp;rhs) const </div><div class="ttdef"><b>Definition:</b> <a href="DD_8h_source.html#l00143">DD.h:143</a></div></div>
<div class="ttc" id="classgeos_1_1math_1_1DD_html_a53dd84b6acc02072100ae1ea6d1c472d"><div class="ttname"><a href="classgeos_1_1math_1_1DD.html#a53dd84b6acc02072100ae1ea6d1c472d">geos::math::DD::DD</a></div><div class="ttdeci">DD()</div><div class="ttdef"><b>Definition:</b> <a href="DD_8h_source.html#l00121">DD.h:121</a></div></div>
<div class="ttc" id="classgeos_1_1math_1_1DD_html_abfaa5a874a136fe4e9559727011f42a2"><div class="ttname"><a href="classgeos_1_1math_1_1DD.html#abfaa5a874a136fe4e9559727011f42a2">geos::math::DD::lo</a></div><div class="ttdeci">double lo</div><div class="ttdef"><b>Definition:</b> <a href="DD_8h_source.html#l00112">DD.h:112</a></div></div>
<div class="ttc" id="classgeos_1_1math_1_1DD_html_ab8cb1204f17678c39147d187093ff51b"><div class="ttname"><a href="classgeos_1_1math_1_1DD.html#ab8cb1204f17678c39147d187093ff51b">geos::math::DD::operator==</a></div><div class="ttdeci">bool operator==(const DD &amp;rhs) const </div><div class="ttdef"><b>Definition:</b> <a href="DD_8h_source.html#l00123">DD.h:123</a></div></div>
<div class="ttc" id="classgeos_1_1math_1_1DD_html_a3533eeabcfcf0865f4a565fb35a8646f"><div class="ttname"><a href="classgeos_1_1math_1_1DD.html#a3533eeabcfcf0865f4a565fb35a8646f">geos::math::DD::operator!=</a></div><div class="ttdeci">bool operator!=(const DD &amp;rhs) const </div><div class="ttdef"><b>Definition:</b> <a href="DD_8h_source.html#l00128">DD.h:128</a></div></div>
<div class="ttc" id="namespacegeos_html"><div class="ttname"><a href="namespacegeos.html">geos</a></div><div class="ttdoc">Basic namespace for all GEOS functionalities. </div><div class="ttdef"><b>Definition:</b> <a href="IndexedNestedRingTester_8h_source.html#l00026">IndexedNestedRingTester.h:26</a></div></div>
<div class="ttc" id="classgeos_1_1math_1_1DD_html_a9eacf68ff929f10bfe2be37b43af3881"><div class="ttname"><a href="classgeos_1_1math_1_1DD.html#a9eacf68ff929f10bfe2be37b43af3881">geos::math::DD::operator&lt;=</a></div><div class="ttdeci">bool operator&lt;=(const DD &amp;rhs) const </div><div class="ttdef"><b>Definition:</b> <a href="DD_8h_source.html#l00138">DD.h:138</a></div></div>
<div class="ttc" id="classgeos_1_1math_1_1DD_html_af3bd55d23bf51d9c3fc630e0390e7d36"><div class="ttname"><a href="classgeos_1_1math_1_1DD.html#af3bd55d23bf51d9c3fc630e0390e7d36">geos::math::DD::operator&lt;</a></div><div class="ttdeci">bool operator&lt;(const DD &amp;rhs) const </div><div class="ttdef"><b>Definition:</b> <a href="DD_8h_source.html#l00133">DD.h:133</a></div></div>
<div class="ttc" id="classgeos_1_1math_1_1DD_html_a3a82f98375e163367f0b046f8358f17d"><div class="ttname"><a href="classgeos_1_1math_1_1DD.html#a3a82f98375e163367f0b046f8358f17d">geos::math::DD::DD</a></div><div class="ttdeci">DD(double p_hi, double p_lo)</div><div class="ttdef"><b>Definition:</b> <a href="DD_8h_source.html#l00119">DD.h:119</a></div></div>
<div class="ttc" id="classgeos_1_1math_1_1DD_html_afd785798e59d70b09b18c1f40d0b2d7c"><div class="ttname"><a href="classgeos_1_1math_1_1DD.html#afd785798e59d70b09b18c1f40d0b2d7c">geos::math::DD::DD</a></div><div class="ttdeci">DD(double x)</div><div class="ttdef"><b>Definition:</b> <a href="DD_8h_source.html#l00120">DD.h:120</a></div></div>
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