std::Same (3) - Linux Manuals

std::Same: std::Same


std::Same - std::Same


Defined in header <concepts>
template < class T, class U > (since C++20)
concept Same = /* see below */;

The concept Same<T, U> is satisfied if and only if T and U denote the same type.
std::Same<T, U> subsumes std::Same<U, T> and vice versa.

Possible implementation

  namespace detail {
      template< class T, class U >
      concept SameHelper = std::is_same_v<T, U>;

  template< class T, class U >
  concept Same = detail::SameHelper<T, U> && detail::SameHelper<U, T>;

See also

is_same checks if two types are the same
        (class template)