# std::remove_cvref

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< cpp‎ | types

Defined in header `<type_traits>` |  |
template< class T > struct remove_cvref; |  | (since C++20)

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.

### Member types

Name | Definition
`type` | the type referred by `T` or `T` itself if it is not a reference, with top-level cv-qualifiers removed

### Helper types

template< class T > using remove_cvref_t = typename remove_cvref<T>::type; |  | (since C++20)

### Possible implementation

    template< class T >
    struct remove_cvref {
        typedef std::remove_cv_t<std::remove_reference_t<T>> type;
    };

### Example

Run this code

    #include <iostream>
    #include <type_traits>

    int main()
    {
        std::cout << std::boolalpha
                  << std::is_same_v<std::remove_cvref_t<int>, int> << '\n'
                  << std::is_same_v<std::remove_cvref_t<int&>, int> << '\n'
                  << std::is_same_v<std::remove_cvref_t<int&&>, int> << '\n'
                  << std::is_same_v<std::remove_cvref_t<const int&>, int> << '\n'
                  << std::is_same_v<std::remove_cvref_t<const int[2]>, int[2]> << '\n'
                  << std::is_same_v<std::remove_cvref_t<const int(&)[2]>, int[2]> << '\n'
                  << std::is_same_v<std::remove_cvref_t<int(int)>, int(int)> << '\n';
    }

Output:

    true
    true
    true
    true
    true
    true
    true

### See also

remove_cv remove_const remove_volatile (C++11)(C++11)(C++11) | removes const or/and volatile specifiers from the given type (class template)
remove_reference (C++11) | removes a reference from the given type (class template)
decay (C++11) | applies type transformations as when passing a function argument by value (class template)

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