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// remove_reference
#include <iostream>
#include <type_traits>
int main() {
typedef int&& rval_int;
typedef std::remove_reference<int>::type A;
typedef std::remove_reference<int&>::type B;
typedef std::remove_reference<int&&>::type C;
typedef std::remove_reference<rval_int>::type D;
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;
return 0;
}
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