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 >= 14 25 26 template <class _Tp, size_t _Np> 27 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX17 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_SINCE_CXX17 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_SINCE_CXX17 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_SINCE_CXX17 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_SINCE_CXX17 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_SINCE_CXX17 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_SINCE_CXX17 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_SINCE_CXX17 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_SINCE_CXX17 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_SINCE_CXX17 91 auto crend(const _Cp& __c) -> decltype(_VSTD::rend(__c)) 92 { 93 return _VSTD::rend(__c); 94 } 95 96 #endif // _LIBCPP_STD_VER >= 14 97 98 _LIBCPP_END_NAMESPACE_STD 99 100 #endif // _LIBCPP___ITERATOR_REVERSE_ACCESS_H 101