std::remove_cvref

Since C++20

Header: <type_traits>

If the type T is a reference type, provides the member typedef type which is the type referred to by T with its topmost cv-qualifiers removed. Otherwise type is T with its topmost cv-qualifiers removed.

# Declarations

template< class T >
struct remove_cvref;

(since C++20)

# Notes

Feature-test macro Value Std Feature __cpp_lib_remove_cvref 201711L (C++20) std::remove_cvref

# Example

#include <type_traits>
 
int main()
{
    static_assert(std::is_same_v<std::remove_cvref_t<int>, int>);
    static_assert(std::is_same_v<std::remove_cvref_t<int&>, int>);
    static_assert(std::is_same_v<std::remove_cvref_t<int&&>, int>);
    static_assert(std::is_same_v<std::remove_cvref_t<const int&>, int>);
    static_assert(std::is_same_v<std::remove_cvref_t<const int[2]>, int[2]>);
    static_assert(std::is_same_v<std::remove_cvref_t<const int(&)[2]>, int[2]>);
    static_assert(std::is_same_v<std::remove_cvref_t<int(int)>, int(int)>);
}

# See also