Defined in header <concepts> | ||
|---|---|---|
template < class T, class U > concept Same = std::is_same_v<T, U>; | (since C++20) |
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.
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>; |
|
(C++11) | checks if two types are the same (class template) |
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http://en.cppreference.com/w/cpp/concepts/Same