35 class weak_ordering;  variable
45 …template<class _Tp, class = enable_if_t<!__one_of_v<_Tp, int, partial_ordering, weak_ordering, str…
138 class weak_ordering {
142   explicit constexpr weak_ordering(_OrdResult __v) noexcept : __value_(_ValueT(__v)) {}  in weak_ordering()  function
145   static const weak_ordering less;
146   static const weak_ordering equivalent;
147   static const weak_ordering greater;
157   friend constexpr bool operator==(weak_ordering, weak_ordering) noexcept = default;
160   friend constexpr bool operator==(weak_ordering __v, _CmpUnspecifiedParam) noexcept {
165   friend constexpr bool operator< (weak_ordering __v, _CmpUnspecifiedParam) noexcept {
170   friend constexpr bool operator<=(weak_ordering __v, _CmpUnspecifiedParam) noexcept {
175   friend constexpr bool operator> (weak_ordering __v, _CmpUnspecifiedParam) noexcept {
180   friend constexpr bool operator>=(weak_ordering __v, _CmpUnspecifiedParam) noexcept {
185   friend constexpr bool operator< (_CmpUnspecifiedParam, weak_ordering __v) noexcept {
190   friend constexpr bool operator<=(_CmpUnspecifiedParam, weak_ordering __v) noexcept {
195   friend constexpr bool operator> (_CmpUnspecifiedParam, weak_ordering __v) noexcept {
200   friend constexpr bool operator>=(_CmpUnspecifiedParam, weak_ordering __v) noexcept {
205   friend constexpr weak_ordering operator<=>(weak_ordering __v, _CmpUnspecifiedParam) noexcept {
210   friend constexpr weak_ordering operator<=>(_CmpUnspecifiedParam, weak_ordering __v) noexcept {
211     return __v < 0 ? weak_ordering::greater : (__v > 0 ? weak_ordering::less : __v);
218 inline constexpr weak_ordering weak_ordering::less(_OrdResult::__less);
219 inline constexpr weak_ordering weak_ordering::equivalent(_OrdResult::__equiv);
220 inline constexpr weak_ordering weak_ordering::greater(_OrdResult::__greater);
242   constexpr operator weak_ordering() const noexcept {  in weak_ordering()  function
243     return __value_ == 0 ? weak_ordering::equivalent  in weak_ordering()
244         : (__value_ < 0 ? weak_ordering::less : weak_ordering::greater);  in weak_ordering()