diff options
Diffstat (limited to 'contrib/llvm-project/libcxx/include/__iterator/reverse_iterator.h')
| -rw-r--r-- | contrib/llvm-project/libcxx/include/__iterator/reverse_iterator.h | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/contrib/llvm-project/libcxx/include/__iterator/reverse_iterator.h b/contrib/llvm-project/libcxx/include/__iterator/reverse_iterator.h index 5c344c2ee310..7b002205f333 100644 --- a/contrib/llvm-project/libcxx/include/__iterator/reverse_iterator.h +++ b/contrib/llvm-project/libcxx/include/__iterator/reverse_iterator.h @@ -70,9 +70,7 @@ public: typename iterator_traits<_Iter>::iterator_category>; using pointer = typename iterator_traits<_Iter>::pointer; #if _LIBCPP_STD_VER > 17 - using iterator_concept = _If<__is_cpp17_random_access_iterator<_Iter>::value, - random_access_iterator_tag, - bidirectional_iterator_tag>; + using iterator_concept = _If<random_access_iterator<_Iter>, random_access_iterator_tag, bidirectional_iterator_tag>; using value_type = iter_value_t<_Iter>; using difference_type = iter_difference_t<_Iter>; using reference = iter_reference_t<_Iter>; @@ -365,7 +363,7 @@ class __unconstrained_reverse_iterator { _Iter __iter_; public: - static_assert(__is_cpp17_bidirectional_iterator<_Iter>::value); + static_assert(__is_cpp17_bidirectional_iterator<_Iter>::value || bidirectional_iterator<_Iter>); using iterator_type = _Iter; using iterator_category = @@ -393,6 +391,14 @@ public: } } + _LIBCPP_HIDE_FROM_ABI friend constexpr + iter_rvalue_reference_t<_Iter> iter_move(const __unconstrained_reverse_iterator& __i) + noexcept(is_nothrow_copy_constructible_v<_Iter> && + noexcept(ranges::iter_move(--declval<_Iter&>()))) { + auto __tmp = __i.base(); + return ranges::iter_move(--__tmp); + } + _LIBCPP_HIDE_FROM_ABI constexpr __unconstrained_reverse_iterator& operator++() { --__iter_; return *this; |