[boost] [type_traits] templated type traits?

Hi, Is there a way to inspect if a type is a template instantiaton (is_templated) and the type of the instantiated template parameters (arg1_type)? is_templated< std::vector<int> >::value // true is_templated< int >::value // false template_traits< std::vector<int> >::arg1_type // int Thanks, --Lorenzo