#включите <boost/qvm/vec_mat_operations.hpp>include <boost/qvm/vec_mat_operations.hpp>[ORIG_END] -->

namespace boost
{
    namespace qvm
    {
        //Only enabled if:
        //  is_vec<A>::value && is_mat<B>::value &&
        //  vec_traits<A>::dim==mat_traits<B>::rows
        template <class A,class B>
        typename deduce_vec2<A,B,mat_traits<B>::cols>::type
        operator*( A const & a, B const & b );
    }
}