[boost] [mpl] insert_range and extensible associative sequences

According to the docs, insert_range is supposed to work on extensible associative sequences; however, the following does not compile (on vc7.1, using cvs HEAD): typedef mpl::insert_range< mpl::map<> , mpl::end< mpl::map<> >::type , mpl::vector<mpl::pair<int,int> > >::type v; Any ideas? -- Eric Niebler Boost Consulting www.boost-consulting.com