| 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_ACCESS_H |
| 11 | #define _LIBCPP___ITERATOR_ACCESS_H |
| 12 | |
| 13 | #include <__config> |
| 14 | #include <cstddef> |
| 15 | |
| 16 | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| 17 | # pragma GCC system_header |
| 18 | #endif |
| 19 | |
| 20 | _LIBCPP_BEGIN_NAMESPACE_STD |
| 21 | |
| 22 | template <class _Tp, size_t _Np> |
| 23 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
| 24 | _Tp* |
| 25 | begin(_Tp (&__array)[_Np]) |
| 26 | { |
| 27 | return __array; |
| 28 | } |
| 29 | |
| 30 | template <class _Tp, size_t _Np> |
| 31 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
| 32 | _Tp* |
| 33 | end(_Tp (&__array)[_Np]) |
| 34 | { |
| 35 | return __array + _Np; |
| 36 | } |
| 37 | |
| 38 | #if !defined(_LIBCPP_CXX03_LANG) |
| 39 | |
| 40 | template <class _Cp> |
| 41 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| 42 | auto |
| 43 | begin(_Cp& __c) -> decltype(__c.begin()) |
| 44 | { |
| 45 | return __c.begin(); |
| 46 | } |
| 47 | |
| 48 | template <class _Cp> |
| 49 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| 50 | auto |
| 51 | begin(const _Cp& __c) -> decltype(__c.begin()) |
| 52 | { |
| 53 | return __c.begin(); |
| 54 | } |
| 55 | |
| 56 | template <class _Cp> |
| 57 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| 58 | auto |
| 59 | end(_Cp& __c) -> decltype(__c.end()) |
| 60 | { |
| 61 | return __c.end(); |
| 62 | } |
| 63 | |
| 64 | template <class _Cp> |
| 65 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| 66 | auto |
| 67 | end(const _Cp& __c) -> decltype(__c.end()) |
| 68 | { |
| 69 | return __c.end(); |
| 70 | } |
| 71 | |
| 72 | #if _LIBCPP_STD_VER > 11 |
| 73 | |
| 74 | template <class _Cp> |
| 75 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
| 76 | auto cbegin(const _Cp& __c) -> decltype(_VSTD::begin(__c)) |
| 77 | { |
| 78 | return _VSTD::begin(__c); |
| 79 | } |
| 80 | |
| 81 | template <class _Cp> |
| 82 | _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX11 |
| 83 | auto cend(const _Cp& __c) -> decltype(_VSTD::end(__c)) |
| 84 | { |
| 85 | return _VSTD::end(__c); |
| 86 | } |
| 87 | |
| 88 | #endif |
| 89 | |
| 90 | |
| 91 | #else // defined(_LIBCPP_CXX03_LANG) |
| 92 | |
| 93 | template <class _Cp> |
| 94 | _LIBCPP_INLINE_VISIBILITY |
| 95 | typename _Cp::iterator |
| 96 | begin(_Cp& __c) |
| 97 | { |
| 98 | return __c.begin(); |
| 99 | } |
| 100 | |
| 101 | template <class _Cp> |
| 102 | _LIBCPP_INLINE_VISIBILITY |
| 103 | typename _Cp::const_iterator |
| 104 | begin(const _Cp& __c) |
| 105 | { |
| 106 | return __c.begin(); |
| 107 | } |
| 108 | |
| 109 | template <class _Cp> |
| 110 | _LIBCPP_INLINE_VISIBILITY |
| 111 | typename _Cp::iterator |
| 112 | end(_Cp& __c) |
| 113 | { |
| 114 | return __c.end(); |
| 115 | } |
| 116 | |
| 117 | template <class _Cp> |
| 118 | _LIBCPP_INLINE_VISIBILITY |
| 119 | typename _Cp::const_iterator |
| 120 | end(const _Cp& __c) |
| 121 | { |
| 122 | return __c.end(); |
| 123 | } |
| 124 | |
| 125 | #endif // !defined(_LIBCPP_CXX03_LANG) |
| 126 | |
| 127 | _LIBCPP_END_NAMESPACE_STD |
| 128 | |
| 129 | #endif // _LIBCPP___ITERATOR_ACCESS_H |
| 130 |