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// 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_enum:" << std::endl;
std::cout << "A: " << std::is_enum<A>::value << std::endl;
std::cout << "B: " << std::is_enum<B>::value << std::endl;
std::cout << "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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