Hi,<div><br></div><div>The following meta program compiles, except for the last (commented) line.</div><div>I expected it to work since it does so for the mpl::vector case.</div><div>Any ideas what I am doing wrong here?</div>
<div><br></div><div><br></div><div><div>#include &lt;boost/fusion/container/vector.hpp&gt;</div><div>#include &lt;boost/fusion/adapted/mpl.hpp&gt;</div><div>#include &lt;boost/mpl/insert.hpp&gt;</div><div>#include &lt;boost/mpl/begin.hpp&gt;</div>
<div>#include &lt;boost/mpl/advance.hpp&gt;</div><div>#include &lt;boost/mpl/int.hpp&gt;</div><div>#include &lt;boost/mpl/vector.hpp&gt;</div><div>#include &lt;boost/mpl/equal.hpp&gt;</div><div><br></div><div>using namespace boost;</div>
<div><br></div><div>template&lt;class Sequence, class Pos, class T&gt;</div><div>struct insert_at</div><div>{</div><div><span class="Apple-tab-span" style="white-space:pre">	</span>typedef typename mpl::advance&lt;typename mpl::begin&lt;Sequence&gt;::type, Pos&gt;::type itr;</div>
<div><span class="Apple-tab-span" style="white-space:pre">	</span>typedef typename mpl::insert&lt;Sequence, itr, T&gt;::type type;</div><div>};</div><div><br></div><div>typedef insert_at&lt;mpl::vector&lt;&gt;, mpl::int_&lt;0&gt;, int&gt;::type vector1_int;</div>
<div>BOOST_MPL_ASSERT(( mpl::equal&lt;vector1_int, mpl::vector&lt;int&gt;&gt;));</div><div><br></div><div>//Doesn&#39;t compile with VC2008</div><div>// typedef insert_at&lt;fusion::vector&lt;&gt;, mpl::int_&lt;0&gt;, int&gt;::type fusion_vector1_int;</div>
<div><br></div><div><br></div><div>Code is using boost-trunk, rather recently updated.</div><div><br></div><div>Thanks,</div><div>Christian</div><div><br></div></div>