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_Weakly_unwrappable should use _Allow_inheriting_unwrap_v #3566

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Merged
Stephan T. Lavavej (StephanTLavavej) merged 1 commit into from
Mar 17, 2023
Merged

_Weakly_unwrappable should use _Allow_inheriting_unwrap_v #3566

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5 changes: 2 additions & 3 deletions stl/inc/xutility
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Original file line number Diff line number Diff line change
Expand Up @@ -2287,9 +2287,8 @@ namespace ranges {
using sentinel_t = decltype(_RANGES end(_STD declval<_Rng&>()));

template <class _Wrapped>
concept _Weakly_unwrappable =
same_as<typename remove_cvref_t<_Wrapped>::_Prevent_inheriting_unwrap, remove_cvref_t<_Wrapped>>
&& requires(_Wrapped&& _Wr) { _STD forward<_Wrapped>(_Wr)._Unwrapped(); };
concept _Weakly_unwrappable = _Allow_inheriting_unwrap_v<remove_cvref_t<_Wrapped>>
&& requires(_Wrapped&& _Wr) { _STD forward<_Wrapped>(_Wr)._Unwrapped(); };

template <class _Sent>
concept _Weakly_unwrappable_sentinel = _Weakly_unwrappable<const remove_reference_t<_Sent>&>;
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