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name="boost.xpressive.regex_search"></a><div class="titlepage"></div> <div class="refnamediv"> <h2><span class="refentrytitle">Function regex_search</span></h2> <p>boost::xpressive::regex_search — Determines whether there is some sub-sequence within <code class="computeroutput">[begin,end)</code> that matches the regular expression <code class="computeroutput">re</code>. </p> </div> <h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> <div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: <<a class="link" href="../../xpressive/reference.html#header.boost.xpressive.regex_algorithms_hpp" title="Header <boost/xpressive/regex_algorithms.hpp>">boost/xpressive/regex_algorithms.hpp</a>> </span> <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> BidiIter<span class="special">></span> <span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="identifier">BidiIter</span> begin<span class="special">,</span> <span class="identifier">BidiIter</span> end<span class="special">,</span> <a class="link" href="match_results.html" title="Struct template match_results">match_results</a><span class="special"><</span> <span class="identifier">BidiIter</span> <span class="special">></span> <span class="special">&</span> what<span class="special">,</span> <a class="link" href="basic_regex.html" title="Struct template basic_regex">basic_regex</a><span class="special"><</span> <span class="identifier">BidiIter</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span> re<span class="special">,</span> <span class="identifier">regex_constants</span><span class="special">::</span><span class="identifier">match_flag_type</span> flags <span class="special">=</span> <span class="identifier">regex_constants</span><span class="special">::</span><span class="identifier">match_default</span><span class="special">)</span><span class="special">;</span> <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> BidiIter<span class="special">></span> <span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="identifier">BidiIter</span> begin<span class="special">,</span> <span class="identifier">BidiIter</span> end<span class="special">,</span> <a class="link" href="basic_regex.html" title="Struct template basic_regex">basic_regex</a><span class="special"><</span> <span class="identifier">BidiIter</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span> re<span class="special">,</span> <span class="identifier">regex_constants</span><span class="special">::</span><span class="identifier">match_flag_type</span> flags <span class="special">=</span> <span class="identifier">regex_constants</span><span class="special">::</span><span class="identifier">match_default</span><span class="special">)</span><span class="special">;</span> <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Char<span class="special">></span> <span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="identifier">Char</span> <span class="special">*</span> begin<span class="special">,</span> <a class="link" href="match_results.html" title="Struct template match_results">match_results</a><span class="special"><</span> <span class="identifier">Char</span> <span class="special">*</span> <span class="special">></span> <span class="special">&</span> what<span class="special">,</span> <a class="link" href="basic_regex.html" title="Struct template basic_regex">basic_regex</a><span class="special"><</span> <span class="identifier">Char</span> <span class="special">*</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span> re<span class="special">,</span> <span class="identifier">regex_constants</span><span class="special">::</span><span class="identifier">match_flag_type</span> flags <span class="special">=</span> <span class="identifier">regex_constants</span><span class="special">::</span><span class="identifier">match_default</span><span class="special">)</span><span class="special">;</span> <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> BidiRange<span class="special">,</span> <span class="keyword">typename</span> BidiIter<span class="special">></span> <span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="identifier">BidiRange</span> <span class="special">&</span> rng<span class="special">,</span> <a class="link" href="match_results.html" title="Struct template match_results">match_results</a><span class="special"><</span> <span class="identifier">BidiIter</span> <span class="special">></span> <span class="special">&</span> what<span class="special">,</span> <a class="link" href="basic_regex.html" title="Struct template basic_regex">basic_regex</a><span class="special"><</span> <span class="identifier">BidiIter</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span> re<span class="special">,</span> <span class="identifier">regex_constants</span><span class="special">::</span><span class="identifier">match_flag_type</span> flags <span class="special">=</span> <span class="identifier">regex_constants</span><span class="special">::</span><span class="identifier">match_default</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span><span class="special">;</span> <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> BidiRange<span class="special">,</span> <span class="keyword">typename</span> BidiIter<span class="special">></span> <span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="identifier">BidiRange</span> <span class="keyword">const</span> <span class="special">&</span> rng<span class="special">,</span> <a class="link" href="match_results.html" title="Struct template match_results">match_results</a><span class="special"><</span> <span class="identifier">BidiIter</span> <span class="special">></span> <span class="special">&</span> what<span class="special">,</span> <a class="link" href="basic_regex.html" title="Struct template basic_regex">basic_regex</a><span class="special"><</span> <span class="identifier">BidiIter</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span> re<span class="special">,</span> <span class="identifier">regex_constants</span><span class="special">::</span><span class="identifier">match_flag_type</span> flags <span class="special">=</span> <span class="identifier">regex_constants</span><span class="special">::</span><span class="identifier">match_default</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span><span class="special">;</span> <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Char<span class="special">></span> <span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="identifier">Char</span> <span class="special">*</span> begin<span class="special">,</span> <a class="link" href="basic_regex.html" title="Struct template basic_regex">basic_regex</a><span class="special"><</span> <span class="identifier">Char</span> <span class="special">*</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span> re<span class="special">,</span> <span class="identifier">regex_constants</span><span class="special">::</span><span class="identifier">match_flag_type</span> flags <span class="special">=</span> <span class="identifier">regex_constants</span><span class="special">::</span><span class="identifier">match_default</span><span class="special">)</span><span class="special">;</span> <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> BidiRange<span class="special">,</span> <span class="keyword">typename</span> BidiIter<span class="special">></span> <span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="identifier">BidiRange</span> <span class="special">&</span> rng<span class="special">,</span> <a class="link" href="basic_regex.html" title="Struct template basic_regex">basic_regex</a><span class="special"><</span> <span class="identifier">BidiIter</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span> re<span class="special">,</span> <span class="identifier">regex_constants</span><span class="special">::</span><span class="identifier">match_flag_type</span> flags <span class="special">=</span> <span class="identifier">regex_constants</span><span class="special">::</span><span class="identifier">match_default</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span><span class="special">;</span> <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> BidiRange<span class="special">,</span> <span class="keyword">typename</span> BidiIter<span class="special">></span> <span class="keyword">bool</span> <span class="identifier">regex_search</span><span class="special">(</span><span class="identifier">BidiRange</span> <span class="keyword">const</span> <span class="special">&</span> rng<span class="special">,</span> <a class="link" href="basic_regex.html" title="Struct template basic_regex">basic_regex</a><span class="special"><</span> <span class="identifier">BidiIter</span> <span class="special">></span> <span class="keyword">const</span> <span class="special">&</span> re<span class="special">,</span> <span class="identifier">regex_constants</span><span class="special">::</span><span class="identifier">match_flag_type</span> flags <span class="special">=</span> <span class="identifier">regex_constants</span><span class="special">::</span><span class="identifier">match_default</span><span class="special">,</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="special">=</span> <span class="number">0</span><span class="special">)</span><span class="special">;</span></pre></div> <div class="refsect1"> <a name="idm45555018863184"></a><h2>Description</h2> <p>Determines whether there is some sub-sequence within <code class="computeroutput">[begin,end)</code> that matches the regular expression <code class="computeroutput">re</code>.</p> <p> </p> <div class="variablelist"><table border="0" class="variablelist compact"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <tbody> <tr> <td><p><span class="term">Parameters:</span></p></td> <td><div class="variablelist"><table border="0" class="variablelist compact"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <tbody> <tr> <td><p><span class="term"><code class="computeroutput">begin</code></span></p></td> <td><p>The beginning of the sequence </p></td> </tr> <tr> <td><p><span class="term"><code class="computeroutput">end</code></span></p></td> <td><p>The end of the sequence </p></td> </tr> <tr> <td><p><span class="term"><code class="computeroutput">flags</code></span></p></td> <td><p>Optional match flags, used to control how the expression is matched against the sequence. (See <code class="computeroutput">match_flag_type</code>.) </p></td> </tr> <tr> <td><p><span class="term"><code class="computeroutput">re</code></span></p></td> <td><p>The regular expression object to use </p></td> </tr> <tr> <td><p><span class="term"><code class="computeroutput">what</code></span></p></td> <td><p>The <code class="computeroutput"><code class="computeroutput"><a class="link" href="match_results.html" title="Struct template match_results">match_results</a></code></code> struct into which the sub_matches will be written </p></td> </tr> </tbody> </table></div></td> </tr> <tr> <td><p><span class="term">Requires:</span></p></td> <td><p>Type <code class="computeroutput">BidiIter</code> meets the requirements of a Bidirectional Iterator (24.1.4). </p></td> </tr> <tr> <td><p><span class="term">Requires:</span></p></td> <td><p><code class="computeroutput">[begin,end)</code> denotes a valid iterator range. </p></td> </tr> <tr> <td><p><span class="term">Returns:</span></p></td> <td><p><code class="computeroutput">true</code> if a match is found, <code class="computeroutput">false</code> otherwise </p></td> </tr> <tr> <td><p><span class="term">Throws:</span></p></td> <td> <a class="link" href="regex_error.html" title="Struct regex_error">regex_error</a> on stack exhaustion </td> </tr> </tbody> </table></div> </div> </div> <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> <td align="left"></td> <td align="right"><div class="copyright-footer">Copyright © 2007 Eric Niebler<p> Distributed under the Boost Software License, Version 1.0. (See accompanying 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>) </p> </div></td> </tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="regex_match.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../xpressive/reference.html#header.boost.xpressive.regex_algorithms_hpp"><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="regex_replace.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> </div> </body> </html>