s="phrase"><a name="fusion.algorithm.transformation.metafunctions.filter_if.description"></a></span><a class="link" href="filter_if.html#fusion.algorithm.transformation.metafunctions.filter_if.description">Description</a>
          </h6>
<p>
            Returns the result type of <a class="link" href="../functions/filter_if.html" title="filter_if"><code class="computeroutput"><span class="identifier">filter_if</span></code></a> given the sequence
            and unary <a href="http://www.boost.org/libs/mpl/