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 <initializer_list>
16
17#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
18# pragma GCC system_header
19#endif
20
21_LIBCPP_BEGIN_NAMESPACE_STD
22
23#if _LIBCPP_STD_VER >= 14
24
25template <class _Tp, size_t _Np>
26_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 reverse_iterator<_Tp*> rbegin(_Tp (&__array)[_Np]) {
27 return reverse_iterator<_Tp*>(__array + _Np);
28}
29
30template <class _Tp, size_t _Np>
31_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 reverse_iterator<_Tp*> rend(_Tp (&__array)[_Np]) {
32 return reverse_iterator<_Tp*>(__array);
33}
34
35template <class _Ep>
36_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 reverse_iterator<const _Ep*> rbegin(initializer_list<_Ep> __il) {
37 return reverse_iterator<const _Ep*>(__il.end());
38}
39
40template <class _Ep>
41_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 reverse_iterator<const _Ep*> rend(initializer_list<_Ep> __il) {
42 return reverse_iterator<const _Ep*>(__il.begin());
43}
44
45template <class _Cp>
46_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 auto rbegin(_Cp& __c) -> decltype(__c.rbegin()) {
47 return __c.rbegin();
48}
49
50template <class _Cp>
51_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 auto rbegin(const _Cp& __c) -> decltype(__c.rbegin()) {
52 return __c.rbegin();
53}
54
55template <class _Cp>
56_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 auto rend(_Cp& __c) -> decltype(__c.rend()) {
57 return __c.rend();
58}
59
60template <class _Cp>
61_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 auto rend(const _Cp& __c) -> decltype(__c.rend()) {
62 return __c.rend();
63}
64
65template <class _Cp>
66_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 auto crbegin(const _Cp& __c) -> decltype(std::rbegin(__c)) {
67 return std::rbegin(__c);
68}
69
70template <class _Cp>
71_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 auto crend(const _Cp& __c) -> decltype(std::rend(__c)) {
72 return std::rend(__c);
73}
74
75#endif // _LIBCPP_STD_VER >= 14
76
77_LIBCPP_END_NAMESPACE_STD
78
79#endif // _LIBCPP___ITERATOR_REVERSE_ACCESS_H
80