diff options
Diffstat (limited to 'libcxx/include/__iterator/reverse_iterator.h')
| -rw-r--r-- | libcxx/include/__iterator/reverse_iterator.h | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/libcxx/include/__iterator/reverse_iterator.h b/libcxx/include/__iterator/reverse_iterator.h index 89bda19effef..a915609dbe33 100644 --- a/libcxx/include/__iterator/reverse_iterator.h +++ b/libcxx/include/__iterator/reverse_iterator.h @@ -15,15 +15,20 @@ #include <__compare/three_way_comparable.h> #include <__concepts/convertible_to.h> #include <__config> +#include <__iterator/advance.h> #include <__iterator/concepts.h> #include <__iterator/incrementable_traits.h> #include <__iterator/iter_move.h> #include <__iterator/iter_swap.h> #include <__iterator/iterator.h> #include <__iterator/iterator_traits.h> +#include <__iterator/next.h> #include <__iterator/prev.h> #include <__iterator/readable_traits.h> #include <__memory/addressof.h> +#include <__ranges/access.h> +#include <__ranges/concepts.h> +#include <__ranges/subrange.h> #include <__utility/move.h> #include <type_traits> @@ -136,7 +141,7 @@ public: #if _LIBCPP_STD_VER > 17 _LIBCPP_INLINE_VISIBILITY constexpr pointer operator->() const - requires is_pointer_v<_Iter> || requires(const _Iter i) { i.operator->(); } + requires is_pointer_v<_Iter> || requires(const _Iter __i) { __i.operator->(); } { if constexpr (is_pointer_v<_Iter>) { return std::prev(current); @@ -365,6 +370,16 @@ struct __rewrap_iter_impl<_ReverseWrapper<_OrigIter>, _UnwrappedIter> { } }; +#if _LIBCPP_STD_VER > 17 && !defined(_LIBCPP_HAS_NO_INCOMPLETE_RANGES) +template <ranges::bidirectional_range _Range> +_LIBCPP_HIDE_FROM_ABI constexpr ranges:: + subrange<reverse_iterator<ranges::iterator_t<_Range>>, reverse_iterator<ranges::iterator_t<_Range>>> + __reverse_range(_Range&& __range) { + auto __first = ranges::begin(__range); + return {std::make_reverse_iterator(ranges::next(__first, ranges::end(__range))), std::make_reverse_iterator(__first)}; +} +#endif + _LIBCPP_END_NAMESPACE_STD #endif // _LIBCPP___ITERATOR_REVERSE_ITERATOR_H |