https://svn.boost.org/trac10/ticket/11407 <p> Boost.Hash provides overloads of hash_value for standard containers, but not for their Boost.Container equivalents. Conversely, Boost.Container also does not provide hash_value overloads for use with Boost.Hash. This prevents boost::container::vector from being used as a drop-in replacement for std::vector, since boost::unordered_map&lt;std::vector&lt;int&gt;, int&gt; is valid but boost::unordered_map&lt;boost::container::vector&lt;int&gt;, int&gt; is not. </p> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/11407 Trac 1.4.3