1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>satisfies(UnaryPredicate const &)</title> 5<link rel="stylesheet" href="../../../../../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../../../index.html" title="Chapter 1. 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20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="within_geometry_const___.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../group__predicates.html"><img src="../../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="nearest_geometry_const____unsigned_.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h5 class="title"> 27<a name="geometry.reference.spatial_indexes.group__predicates.satisfies_unarypredicate_const___"></a><a name="group__predicates_1ga3213772dd3e54ad03340c2ca66b4f58c"></a><a class="link" href="satisfies_unarypredicate_const___.html" title="satisfies(UnaryPredicate const &)">satisfies(UnaryPredicate 28 const &)</a> 29</h5></div></div></div> 30<p> 31 <a class="indexterm" name="idm45635672129136"></a> 32Generate <a class="link" href="satisfies_unarypredicate_const___.html#group__predicates_1ga3213772dd3e54ad03340c2ca66b4f58c">satisfies()</a> 33 predicate. 34 </p> 35<h6> 36<a name="geometry.reference.spatial_indexes.group__predicates.satisfies_unarypredicate_const___.h0"></a> 37 <span class="phrase"><a name="geometry.reference.spatial_indexes.group__predicates.satisfies_unarypredicate_const___.description"></a></span><a class="link" href="satisfies_unarypredicate_const___.html#geometry.reference.spatial_indexes.group__predicates.satisfies_unarypredicate_const___.description">Description</a> 38 </h6> 39<p> 40 A wrapper around user-defined UnaryPredicate checking if Value should 41 be returned by spatial query. 42 </p> 43<h6> 44<a name="geometry.reference.spatial_indexes.group__predicates.satisfies_unarypredicate_const___.h1"></a> 45 <span class="phrase"><a name="geometry.reference.spatial_indexes.group__predicates.satisfies_unarypredicate_const___.synopsis"></a></span><a class="link" href="satisfies_unarypredicate_const___.html#geometry.reference.spatial_indexes.group__predicates.satisfies_unarypredicate_const___.synopsis">Synopsis</a> 46 </h6> 47<pre class="programlisting"><code class="computeroutput"><span class="keyword">template</span><span class="special"><</span></code><code class="computeroutput"><span class="keyword">typename</span> <span class="identifier">UnaryPredicate</span></code><code class="computeroutput"><span class="special">></span></code> 48<span class="emphasis"><em>unspecified</em></span> <code class="computeroutput"><span class="identifier">satisfies</span></code><code class="computeroutput"><span class="special">(</span></code><code class="computeroutput"><span class="identifier">UnaryPredicate</span> <span class="keyword">const</span> <span class="special">&</span></code> <code class="computeroutput"><span class="identifier">pred</span></code><code class="computeroutput"><span class="special">)</span></code> 49</pre> 50<h6> 51<a name="geometry.reference.spatial_indexes.group__predicates.satisfies_unarypredicate_const___.h2"></a> 52 <span class="phrase"><a name="geometry.reference.spatial_indexes.group__predicates.satisfies_unarypredicate_const___.template_parameter_s_"></a></span><a class="link" href="satisfies_unarypredicate_const___.html#geometry.reference.spatial_indexes.group__predicates.satisfies_unarypredicate_const___.template_parameter_s_">Template 53 parameter(s)</a> 54 </h6> 55<div class="informaltable"><table class="table"> 56<colgroup> 57<col> 58<col> 59</colgroup> 60<thead><tr> 61<th> 62 <p> 63 Parameter 64 </p> 65 </th> 66<th> 67 <p> 68 Description 69 </p> 70 </th> 71</tr></thead> 72<tbody><tr> 73<td> 74 <p> 75 <code class="computeroutput"><span class="identifier">UnaryPredicate</span></code> 76 </p> 77 </td> 78<td> 79 <p> 80 A type of unary predicate function or function object. 81 </p> 82 </td> 83</tr></tbody> 84</table></div> 85<h6> 86<a name="geometry.reference.spatial_indexes.group__predicates.satisfies_unarypredicate_const___.h3"></a> 87 <span class="phrase"><a name="geometry.reference.spatial_indexes.group__predicates.satisfies_unarypredicate_const___.parameter_s_"></a></span><a class="link" href="satisfies_unarypredicate_const___.html#geometry.reference.spatial_indexes.group__predicates.satisfies_unarypredicate_const___.parameter_s_">Parameter(s)</a> 88 </h6> 89<div class="informaltable"><table class="table"> 90<colgroup> 91<col> 92<col> 93<col> 94</colgroup> 95<thead><tr> 96<th> 97 <p> 98 Type 99 </p> 100 </th> 101<th> 102 <p> 103 Name 104 </p> 105 </th> 106<th> 107 <p> 108 Description 109 </p> 110 </th> 111</tr></thead> 112<tbody><tr> 113<td> 114 <p> 115 <code class="computeroutput"><span class="identifier">UnaryPredicate</span> <span class="keyword">const</span> <span class="special">&</span></code> 116 </p> 117 </td> 118<td> 119 <p> 120 <code class="computeroutput"><span class="identifier">pred</span></code> 121 </p> 122 </td> 123<td> 124 <p> 125 The unary predicate function or function object. 126 </p> 127 </td> 128</tr></tbody> 129</table></div> 130<h6> 131<a name="geometry.reference.spatial_indexes.group__predicates.satisfies_unarypredicate_const___.h4"></a> 132 <span class="phrase"><a name="geometry.reference.spatial_indexes.group__predicates.satisfies_unarypredicate_const___.example"></a></span><a class="link" href="satisfies_unarypredicate_const___.html#geometry.reference.spatial_indexes.group__predicates.satisfies_unarypredicate_const___.example">Example</a> 133 </h6> 134<p> 135</p> 136<pre class="programlisting"><span class="keyword">bool</span> <span class="identifier">is_red</span><span class="special">(</span><span class="identifier">Value</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">v</span><span class="special">)</span> <span class="special">{</span> <span class="keyword">return</span> <span class="identifier">v</span><span class="special">.</span><span class="identifier">is_red</span><span class="special">();</span> <span class="special">}</span> 137 138<span class="keyword">struct</span> <span class="identifier">is_red_o</span> <span class="special">{</span> 139<span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Value</span><span class="special">></span> <span class="keyword">bool</span> <span class="keyword">operator</span><span class="special">()(</span><span class="identifier">Value</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">v</span><span class="special">)</span> <span class="special">{</span> <span class="keyword">return</span> <span class="identifier">v</span><span class="special">.</span><span class="identifier">is_red</span><span class="special">();</span> <span class="special">}</span> 140<span class="special">}</span> 141 142<span class="comment">// ...</span> 143 144<span class="identifier">rt</span><span class="special">.</span><span class="identifier">query</span><span class="special">(</span><span class="identifier">index</span><span class="special">::</span><span class="identifier">intersects</span><span class="special">(</span><span class="identifier">box</span><span class="special">)</span> <span class="special">&&</span> <span class="identifier">index</span><span class="special">::</span><span class="identifier">satisfies</span><span class="special">(</span><span class="identifier">is_red</span><span class="special">),</span> 145<span class="identifier">std</span><span class="special">::</span><span class="identifier">back_inserter</span><span class="special">(</span><span class="identifier">result</span><span class="special">));</span> 146 147<span class="identifier">rt</span><span class="special">.</span><span class="identifier">query</span><span class="special">(</span><span class="identifier">index</span><span class="special">::</span><span class="identifier">intersects</span><span class="special">(</span><span class="identifier">box</span><span class="special">)</span> <span class="special">&&</span> <span class="identifier">index</span><span class="special">::</span><span class="identifier">satisfies</span><span class="special">(</span><span class="identifier">is_red_o</span><span class="special">()),</span> 148<span class="identifier">std</span><span class="special">::</span><span class="identifier">back_inserter</span><span class="special">(</span><span class="identifier">result</span><span class="special">));</span> 149 150<span class="preprocessor">#ifndef</span> <span class="identifier">BOOST_NO_CXX11_LAMBDAS</span> 151<span class="identifier">rt</span><span class="special">.</span><span class="identifier">query</span><span class="special">(</span><span class="identifier">index</span><span class="special">::</span><span class="identifier">intersects</span><span class="special">(</span><span class="identifier">box</span><span class="special">)</span> <span class="special">&&</span> <span class="identifier">index</span><span class="special">::</span><span class="identifier">satisfies</span><span class="special">([](</span><span class="identifier">Value</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">v</span><span class="special">)</span> <span class="special">{</span> <span class="keyword">return</span> <span class="identifier">v</span><span class="special">.</span><span class="identifier">is_red</span><span class="special">();</span> <span class="special">}),</span> 152<span class="identifier">std</span><span class="special">::</span><span class="identifier">back_inserter</span><span class="special">(</span><span class="identifier">result</span><span class="special">));</span> 153<span class="preprocessor">#endif</span> 154</pre> 155<p> 156 </p> 157</div> 158<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 159<td align="left"></td> 160<td align="right"><div class="copyright-footer">Copyright © 2009-2019 Barend Gehrels, Bruno Lalande, Mateusz Loskot, Adam 161 Wulkiewicz, Oracle and/or its affiliates<p> 162 Distributed under the Boost Software License, Version 1.0. (See accompanying 163 file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) 164 </p> 165</div></td> 166</tr></table> 167<hr> 168<div class="spirit-nav"> 169<a accesskey="p" href="within_geometry_const___.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../group__predicates.html"><img src="../../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="nearest_geometry_const____unsigned_.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> 170</div> 171</body> 172</html> 173
