1fe6060f1SDimitry Andric // -*- C++ -*- 2fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 3fe6060f1SDimitry Andric // 4fe6060f1SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5fe6060f1SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 6fe6060f1SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7fe6060f1SDimitry Andric // 8fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 9fe6060f1SDimitry Andric 10fe6060f1SDimitry Andric #ifndef _LIBCPP___ITERATOR_ACCESS_H 11fe6060f1SDimitry Andric #define _LIBCPP___ITERATOR_ACCESS_H 12fe6060f1SDimitry Andric 13fe6060f1SDimitry Andric #include <__config> 14fe6060f1SDimitry Andric #include <cstddef> 15fe6060f1SDimitry Andric 16fe6060f1SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 17fe6060f1SDimitry Andric # pragma GCC system_header 18fe6060f1SDimitry Andric #endif 19fe6060f1SDimitry Andric 20fe6060f1SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 21fe6060f1SDimitry Andric 22fe6060f1SDimitry Andric template <class _Tp, size_t _Np> 23*5f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _Tp* begin(_Tp (&__array)[_Np]) _NOEXCEPT { 24fe6060f1SDimitry Andric return __array; 25fe6060f1SDimitry Andric } 26fe6060f1SDimitry Andric 27fe6060f1SDimitry Andric template <class _Tp, size_t _Np> 28*5f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR _Tp* end(_Tp (&__array)[_Np]) _NOEXCEPT { 29fe6060f1SDimitry Andric return __array + _Np; 30fe6060f1SDimitry Andric } 31fe6060f1SDimitry Andric 32fe6060f1SDimitry Andric #if !defined(_LIBCPP_CXX03_LANG) 33fe6060f1SDimitry Andric 34fe6060f1SDimitry Andric template <class _Cp> 35*5f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 36fe6060f1SDimitry Andric auto 37fe6060f1SDimitry Andric begin(_Cp& __c) -> decltype(__c.begin()) 38fe6060f1SDimitry Andric { 39fe6060f1SDimitry Andric return __c.begin(); 40fe6060f1SDimitry Andric } 41fe6060f1SDimitry Andric 42fe6060f1SDimitry Andric template <class _Cp> 43*5f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 44fe6060f1SDimitry Andric auto 45fe6060f1SDimitry Andric begin(const _Cp& __c) -> decltype(__c.begin()) 46fe6060f1SDimitry Andric { 47fe6060f1SDimitry Andric return __c.begin(); 48fe6060f1SDimitry Andric } 49fe6060f1SDimitry Andric 50fe6060f1SDimitry Andric template <class _Cp> 51*5f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 52fe6060f1SDimitry Andric auto 53fe6060f1SDimitry Andric end(_Cp& __c) -> decltype(__c.end()) 54fe6060f1SDimitry Andric { 55fe6060f1SDimitry Andric return __c.end(); 56fe6060f1SDimitry Andric } 57fe6060f1SDimitry Andric 58fe6060f1SDimitry Andric template <class _Cp> 59*5f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX17 60fe6060f1SDimitry Andric auto 61fe6060f1SDimitry Andric end(const _Cp& __c) -> decltype(__c.end()) 62fe6060f1SDimitry Andric { 63fe6060f1SDimitry Andric return __c.end(); 64fe6060f1SDimitry Andric } 65fe6060f1SDimitry Andric 6606c3fb27SDimitry Andric #if _LIBCPP_STD_VER >= 14 67fe6060f1SDimitry Andric 68fe6060f1SDimitry Andric template <class _Cp> 69*5f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr auto cbegin(const _Cp& __c) noexcept(noexcept(std::begin(__c))) 70*5f757f3fSDimitry Andric -> decltype(std::begin(__c)) { 71*5f757f3fSDimitry Andric return std::begin(__c); 72fe6060f1SDimitry Andric } 73fe6060f1SDimitry Andric 74fe6060f1SDimitry Andric template <class _Cp> 75*5f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr auto cend(const _Cp& __c) noexcept(noexcept(std::end(__c))) -> decltype(std::end(__c)) { 76*5f757f3fSDimitry Andric return std::end(__c); 77fe6060f1SDimitry Andric } 78fe6060f1SDimitry Andric 79fe6060f1SDimitry Andric #endif 80fe6060f1SDimitry Andric 81fe6060f1SDimitry Andric 82fe6060f1SDimitry Andric #else // defined(_LIBCPP_CXX03_LANG) 83fe6060f1SDimitry Andric 84fe6060f1SDimitry Andric template <class _Cp> 85*5f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI 86fe6060f1SDimitry Andric typename _Cp::iterator 87fe6060f1SDimitry Andric begin(_Cp& __c) 88fe6060f1SDimitry Andric { 89fe6060f1SDimitry Andric return __c.begin(); 90fe6060f1SDimitry Andric } 91fe6060f1SDimitry Andric 92fe6060f1SDimitry Andric template <class _Cp> 93*5f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI 94fe6060f1SDimitry Andric typename _Cp::const_iterator 95fe6060f1SDimitry Andric begin(const _Cp& __c) 96fe6060f1SDimitry Andric { 97fe6060f1SDimitry Andric return __c.begin(); 98fe6060f1SDimitry Andric } 99fe6060f1SDimitry Andric 100fe6060f1SDimitry Andric template <class _Cp> 101*5f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI 102fe6060f1SDimitry Andric typename _Cp::iterator 103fe6060f1SDimitry Andric end(_Cp& __c) 104fe6060f1SDimitry Andric { 105fe6060f1SDimitry Andric return __c.end(); 106fe6060f1SDimitry Andric } 107fe6060f1SDimitry Andric 108fe6060f1SDimitry Andric template <class _Cp> 109*5f757f3fSDimitry Andric _LIBCPP_HIDE_FROM_ABI 110fe6060f1SDimitry Andric typename _Cp::const_iterator 111fe6060f1SDimitry Andric end(const _Cp& __c) 112fe6060f1SDimitry Andric { 113fe6060f1SDimitry Andric return __c.end(); 114fe6060f1SDimitry Andric } 115fe6060f1SDimitry Andric 116fe6060f1SDimitry Andric #endif // !defined(_LIBCPP_CXX03_LANG) 117fe6060f1SDimitry Andric 118fe6060f1SDimitry Andric _LIBCPP_END_NAMESPACE_STD 119fe6060f1SDimitry Andric 120fe6060f1SDimitry Andric #endif // _LIBCPP___ITERATOR_ACCESS_H 121