#include <iostream>
#include <type_traits>
void f( int ) { std::cout << "int, "; }

template< typename T >
auto f( T ) -> typename
    std::enable_if< !std::is_same< T, long >::value >::type
{ std::cout << "T, "; }


int main() {
    int a; bool b; long c;
    f( a ), f( b ), f( c );
}