eader.boost.units.operators_hpp" title="Header &lt;boost/units/operators.hpp&gt;">boost/units/operators.hpp</a>&gt;

</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> X<span class="special">,</span> <span class="keyword">typename</span> Y<span class="special">&gt;</span> 
<span class="keyword">struct</span> <a class="link" href="multiply_typeof_helper.html" title="Struct template multiply_typeof_helper">multiply_typeof_helper</a> <span class="