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| // decay example #include <iostream> #include <type_traits> typedef std::decay<int>::type A; // int typedef std::decay<int&>::type B; // int typedef std::decay<int&&>::type C; // int typedef std::decay<const int&>::type D; // int typedef std::decay<int[2]>::type E; // int* typedef std::decay<int(int)>::type F; // int(*)(int) typedef int X[3]; int main() { std::cout << std::boolalpha; std::cout << "typedefs of int:" << std::endl; std::cout << "A: " << std::is_same<int,A>::value << std::endl; std::cout << "B: " << std::is_same<int,B>::value << std::endl; std::cout << "C: " << std::is_same<int,C>::value << std::endl; std::cout << "D: " << std::is_same<int,D>::value << std::endl; std::cout << "E: " << std::is_same<int,E>::value << std::endl; std::cout << "F: " << std::is_same<int,F>::value << std::endl; return 0; }
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