| 1 | // -*- C++ -*- |
|---|---|
| 2 | //===----------------------------------------------------------------------===// |
| 3 | // |
| 4 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 5 | // See https://llvm.org/LICENSE.txt for license information. |
| 6 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | #ifndef _LIBCPP___ITERATOR_REVERSE_ACCESS_H |
| 11 | #define _LIBCPP___ITERATOR_REVERSE_ACCESS_H |
| 12 | |
| 13 | #include <__config> |
| 14 | #include <__iterator/reverse_iterator.h> |
| 15 | #include <cstddef> |
| 16 | #include <initializer_list> |
| 17 | |
| 18 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| 19 | # pragma GCC system_header |
| 20 | #endif |
| 21 | |
| 22 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 23 | |
| 24 | #if _LIBCPP_STD_VER > 11 |
| 25 | |
| 26 | template <class _Tp, size_t _Np> |
| 27 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| 28 | reverse_iterator<_Tp*> rbegin(_Tp (&__array)[_Np]) |
| 29 | { |
| 30 | return reverse_iterator<_Tp*>(__array + _Np); |
| 31 | } |
| 32 | |
| 33 | template <class _Tp, size_t _Np> |
| 34 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| 35 | reverse_iterator<_Tp*> rend(_Tp (&__array)[_Np]) |
| 36 | { |
| 37 | return reverse_iterator<_Tp*>(__array); |
| 38 | } |
| 39 | |
| 40 | template <class _Ep> |
| 41 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| 42 | reverse_iterator<const _Ep*> rbegin(initializer_list<_Ep> __il) |
| 43 | { |
| 44 | return reverse_iterator<const _Ep*>(__il.end()); |
| 45 | } |
| 46 | |
| 47 | template <class _Ep> |
| 48 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| 49 | reverse_iterator<const _Ep*> rend(initializer_list<_Ep> __il) |
| 50 | { |
| 51 | return reverse_iterator<const _Ep*>(__il.begin()); |
| 52 | } |
| 53 | |
| 54 | template <class _Cp> |
| 55 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| 56 | auto rbegin(_Cp& __c) -> decltype(__c.rbegin()) |
| 57 | { |
| 58 | return __c.rbegin(); |
| 59 | } |
| 60 | |
| 61 | template <class _Cp> |
| 62 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| 63 | auto rbegin(const _Cp& __c) -> decltype(__c.rbegin()) |
| 64 | { |
| 65 | return __c.rbegin(); |
| 66 | } |
| 67 | |
| 68 | template <class _Cp> |
| 69 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| 70 | auto rend(_Cp& __c) -> decltype(__c.rend()) |
| 71 | { |
| 72 | return __c.rend(); |
| 73 | } |
| 74 | |
| 75 | template <class _Cp> |
| 76 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| 77 | auto rend(const _Cp& __c) -> decltype(__c.rend()) |
| 78 | { |
| 79 | return __c.rend(); |
| 80 | } |
| 81 | |
| 82 | template <class _Cp> |
| 83 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| 84 | auto crbegin(const _Cp& __c) -> decltype(_VSTD::rbegin(__c)) |
| 85 | { |
| 86 | return _VSTD::rbegin(__c); |
| 87 | } |
| 88 | |
| 89 | template <class _Cp> |
| 90 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| 91 | auto crend(const _Cp& __c) -> decltype(_VSTD::rend(__c)) |
| 92 | { |
| 93 | return _VSTD::rend(__c); |
| 94 | } |
| 95 | |
| 96 | #endif // _LIBCPP_STD_VER > 11 |
| 97 | |
| 98 | _LIBCPP_END_NAMESPACE_STD |
| 99 | |
| 100 | #endif // _LIBCPP___ITERATOR_REVERSE_ACCESS_H |
| 101 |