----- Original Message ----- From: "vicente.botet" <vicente.botet@wanadoo.fr> To: <boost@lists.boost.org> Sent: Thursday, April 22, 2010 12:30 AM Subject: [boost] [interprocess][move] enum template argument fails to be avalid base class I have find a possible bug on the move emulation on " Boost::Container::Vector with Enum Template Argument - Not Legal Base Class" http://stackoverflow.com/questions/2678476/boostcontainervector-with-enum-te... As rv inherits from the movable class template <class T> class rv : public T { rv(); ~rv(); rv(rv const&); void operator=(rv const&); }; it doesn't works for enum types. With gcc 3.4. I get ../../../boost/interprocess/detail/move.hpp:79: error: base type `Test::Types' fails to be a struct or class type. I don't know if this is a know issue with the move emulation. I have tried to add a specialization for is_movable namespace boost { namespace interprocess { // get inside boost template<> class is_movable<Test::Types> // add custom specialization of is_movable : public mpl::bool_<false> {}; }} but this doesn't works neither. I have tried to specialize the rv template with template <> class rv<Test::Types> { Test::Types v; rv(); ~rv(); rv(rv const&); void operator=(rv const&); operator Test::Types() const {return v;} }; and it compiles but the execution fails. Is there any workaround to this issue or better yet a generic solution? _______________________________________________ Sorry, the execution doesn't fails with cygwin 3.4 or msvc 9 Express. I'm not sure if the rv specialization works on all the cases. Ion could you comment on this issue? Best, _____________________ Vicente Juan Botet Escribá http://viboes.blogspot.com/