std::has_unique_object_representations - Man Page

typedef integral_constant< _Tp, __v > type
typedef _Tp value_type

constexpr operator value_type () const noexcept
constexpr value_type operator() () const noexcept

static constexpr _Tp value

struct std::has_unique_object_representations< _Tp >"has_unique_object_representations

Since

C++17