span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Predicate<span class="special">&gt;</span> 
<span class="keyword">class</span> <a class="link" href="unary_negate.html" title="Class template unary_negate">unary_negate</a> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">compute</span><span class="special">::</span><span class="identifier">un