[Boost-users] enable_if and multiple partial specializations

Hi, It's late and I might be missing something, but I can't figure out how can I use enable_if to disambiguate 2 partial specializations where one is subcase of another one: #include #include #include #include <iostream> template struct M { static void foo() { std::cout << "generic" << std::endl; } }; template<typename T> struct M::type> { static void foo() { std::cout << "scalar" << std::endl; } }; template<typename T> struct M::type> { static void foo() { std::cout << "enum" << std::endl; } }; struct S {}; enum FOO { FOO1, FOO2 }; int main() { M<S>::foo(); M<int>::foo(); M<FOO>::foo(); } --------------- M<FOO>::foo() fails to compile due to ambiguity. Any pointers? Or How to get what I want? Gennadiy