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<h2><span class="refentrytitle">Function head_finder</span></h2>
<p>boost::algorithm::head_finder &#8212; "Head" finder </p>
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<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: &lt;<a class="link" href="../../string_algo/reference.html#header.boost.algorithm.string.finder_hpp" title="Header &lt;boost/algorithm/string/finder.hpp&gt;">boost/algorithm/string/finder.hpp</a>&gt;

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<span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <span class="identifier">head_finder</span><span class="special">(</span><span class="keyword">int</span> N<span class="special">)</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="idp110905152"></a><h2>Description</h2>
<p>Construct the <code class="computeroutput">head_finder</code>. The finder returns a head of a given input. The head is a prefix of a string up to n elements in size. If an input has less then n elements, whole input is considered a head. The result is given as an <code class="computeroutput">iterator_range</code> delimiting the match.</p>
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<td><p><span class="term">Parameters:</span></p></td>
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<td><p><span class="term"><code class="computeroutput">N</code></span></p></td>
<td><p>The size of the head </p></td>
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<td><p><span class="term">Returns:</span></p></td>
<td><p>An instance of the <code class="computeroutput">head_finder</code> object </p></td>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2002-2004 Pavol Droba<p>Use, modification and distribution is subject to the Boost
                Software License, Version 1.0. (See accompanying file
                <code class="filename">LICENSE_1_0.txt</code> or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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