| 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/size_t.h> |
| 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_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _Tp* begin(_Tp (&__array)[_Np]) _NOEXCEPT { |
| 24 | return __array; |
| 25 | } |
| 26 | |
| 27 | template <class _Tp, size_t _Np> |
| 28 | _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _Tp* end(_Tp (&__array)[_Np]) _NOEXCEPT { |
| 29 | return __array + _Np; |
| 30 | } |
| 31 | |
| 32 | #if !defined(_LIBCPP_CXX03_LANG) |
| 33 | |
| 34 | template <class _Cp> |
| 35 | _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 auto begin(_Cp& __c) -> decltype(__c.begin()) { |
| 36 | return __c.begin(); |
| 37 | } |
| 38 | |
| 39 | template <class _Cp> |
| 40 | _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 auto begin(const _Cp& __c) -> decltype(__c.begin()) { |
| 41 | return __c.begin(); |
| 42 | } |
| 43 | |
| 44 | template <class _Cp> |
| 45 | _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 auto end(_Cp& __c) -> decltype(__c.end()) { |
| 46 | return __c.end(); |
| 47 | } |
| 48 | |
| 49 | template <class _Cp> |
| 50 | _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 auto end(const _Cp& __c) -> decltype(__c.end()) { |
| 51 | return __c.end(); |
| 52 | } |
| 53 | |
| 54 | # if _LIBCPP_STD_VER >= 14 |
| 55 | |
| 56 | template <class _Cp> |
| 57 | _LIBCPP_HIDE_FROM_ABI constexpr auto |
| 58 | cbegin(const _Cp& __c) noexcept(noexcept(std::begin(__c))) -> decltype(std::begin(__c)) { |
| 59 | return std::begin(__c); |
| 60 | } |
| 61 | |
| 62 | template <class _Cp> |
| 63 | _LIBCPP_HIDE_FROM_ABI constexpr auto cend(const _Cp& __c) noexcept(noexcept(std::end(__c))) -> decltype(std::end(__c)) { |
| 64 | return std::end(__c); |
| 65 | } |
| 66 | |
| 67 | # endif |
| 68 | |
| 69 | #else // defined(_LIBCPP_CXX03_LANG) |
| 70 | |
| 71 | template <class _Cp> |
| 72 | _LIBCPP_HIDE_FROM_ABI typename _Cp::iterator begin(_Cp& __c) { |
| 73 | return __c.begin(); |
| 74 | } |
| 75 | |
| 76 | template <class _Cp> |
| 77 | _LIBCPP_HIDE_FROM_ABI typename _Cp::const_iterator begin(const _Cp& __c) { |
| 78 | return __c.begin(); |
| 79 | } |
| 80 | |
| 81 | template <class _Cp> |
| 82 | _LIBCPP_HIDE_FROM_ABI typename _Cp::iterator end(_Cp& __c) { |
| 83 | return __c.end(); |
| 84 | } |
| 85 | |
| 86 | template <class _Cp> |
| 87 | _LIBCPP_HIDE_FROM_ABI typename _Cp::const_iterator end(const _Cp& __c) { |
| 88 | return __c.end(); |
| 89 | } |
| 90 | |
| 91 | #endif // !defined(_LIBCPP_CXX03_LANG) |
| 92 | |
| 93 | _LIBCPP_END_NAMESPACE_STD |
| 94 | |
| 95 | #endif // _LIBCPP___ITERATOR_ACCESS_H |
| 96 |