#include <iostream>
#include <type_traits>

template <typename T, typename std::enable_if< std::is_same<T, int>::value, int >::type = 0>
void foo(T t) {
  std::cout << "int" << std::endl;
}

template <typename T, typename std::enable_if< !std::is_same<T, int>::value, int >::type = 0>
void foo(T t) {
  std::cout << "not int" << std::endl;
}

int main(int argc, char* argv[])
{
  foo(10);
  foo(10.1);
  return 0;
}