span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">UnsignedInt</span><span class="special">&gt;</span>
<span class="keyword">class</span> <span class="identifier">myclass</span>
<span class="special">{</span>
<span class="keyword">private</span><span class="special">:</span>
   <span class="identifier">BOOST_STATIC_ASSERT_MSG</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">numeric_limits</