// is_enum example
#include <iostream>
#include <type_traits>
 
enum A {first,second,third};       // unscoped enum (C-style)
class B {};
enum class C {alpha,beta,gamma};   // scoped enum (C++11-style)
 
int main() {
  std::cout << std::boolalpha;
  std::cout << "is same enum A and int: " << std::is_same<A, int>::value << std::endl;  
  std::cout << "is_enum:" << std::endl;
  std::cout << "int: " << std::is_enum<int>::value << std::endl;  
  std::cout << "enum A: " << std::is_enum<A>::value << std::endl;
  std::cout << "class B: " << std::is_enum<B>::value << std::endl;
  std::cout << "enum class C: " << std::is_enum<C>::value << std::endl;
  std::cout << "decltype(C::alpha): " << std::is_enum<decltype(C::alpha)>::value << std::endl;
  return 0;
}

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