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<title>Function template var_string_to_int</title>
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<h2><span class="refentrytitle">Function template var_string_to_int</span></h2>
<p>boost::date_time::var_string_to_int &#8212; Helper function for parsing varied length strings into integers. </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="../../date_time/doxy.html#header.boost.date_time.format_date_parser_hpp" title="Header &lt;boost/date_time/format_date_parser.hpp&gt;">boost/date_time/format_date_parser.hpp</a>&gt;

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<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> int_type<span class="special">,</span> <span class="keyword">typename</span> charT<span class="special">&gt;</span> 
  <span class="identifier">int_type</span> <span class="identifier">var_string_to_int</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">istreambuf_iterator</span><span class="special">&lt;</span> <span class="identifier">charT</span> <span class="special">&gt;</span> <span class="special">&amp;</span> itr<span class="special">,</span> 
                             <span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">istreambuf_iterator</span><span class="special">&lt;</span> <span class="identifier">charT</span> <span class="special">&gt;</span> <span class="special">&amp;</span> stream_end<span class="special">,</span> 
                             <span class="keyword">unsigned</span> <span class="keyword">int</span> max_length<span class="special">)</span><span class="special">;</span></pre></div>
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<a name="idp190848256"></a><h2>Description</h2>
<p>Will consume 'max_length' characters from stream only if those characters are digits. Returns '-1' if no number can be parsed. Will not parse a number preceeded by a '+' or '-'. </p>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2001-2005 CrystalClear Software, Inc<p>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>)</p>
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