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  28 <h2><span class="refentrytitle">Function operator-=</span></h2>
  29 <p>boost::local_time::operator-=</p>
  30 </div>
  31 <h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
  32 <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.local_time.date_duration_operators_hpp" title="Header &lt;boost/date_time/local_time/date_duration_operators.hpp&gt;">boost/date_time/local_time/date_duration_operators.hpp</a>&gt;
  33
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  35 <a class="link" href="../../date_time/doxy.html#boost.local_time.local_date_time">local_date_time</a>
  36 <span class="keyword">operator</span><span class="special">-=</span><span class="special">(</span><a class="link" href="../../date_time/doxy.html#boost.local_time.local_date_time">local_date_time</a> <span class="special">&amp;</span> t<span class="special">,</span> <span class="keyword">const</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">gregorian</span><span class="special">::</span><span class="identifier">months</span> <span class="special">&amp;</span> m<span class="special">)</span><span class="special">;</span></pre></div>
  37 <div class="refsect1">
  38 <a name="id1525677"></a><h2>Description</h2>
  39 <p>Subtracts a months object from a local_date_time. Result will be same day-of-month as local_date_time unless original day was the last day of month. see date_time::months_duration for more details </p>
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