std::remove_reference
Min standard notice:
Header: <type_traits>
If the type T is a reference type, provides the member typedef type which is the type referred to by T. Otherwise type is T.
# Declarations
template< class T >
struct remove_reference;
(since C++11)
# Example
#include <iostream>
#include <type_traits>
int main()
{
std::cout << std::boolalpha;
std::cout << "std::remove_reference<int>::type is int? "
<< std::is_same<int, std::remove_reference<int>::type>::value << '\n';
std::cout << "std::remove_reference<int&>::type is int? "
<< std::is_same<int, std::remove_reference<int&>::type>::value << '\n';
std::cout << "std::remove_reference<int&&>::type is int? "
<< std::is_same<int, std::remove_reference<int&&>::type>::value << '\n';
std::cout << "std::remove_reference<const int&>::type is const int? "
<< std::is_same<const int,
std::remove_reference<const int&>::type>::value << '\n';
}