, 1 );
<a href="./assert-relation.html" class="identifier">BOOST_MPL_ASSERT_RELATION</a>( <a href="./size.html" class="identifier">size</a>&lt;result3&gt;::value, ==, 2 );

<a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same&lt; <a href="./back.html" class="identifier">back</a>&lt;result2&gt;::type, long&gt; ));
<a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same&lt; <a href="./back.html" class="identifier">back</a>&lt;result3&gt;::type, int > ));
</pre>
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