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_DATA_H 11fe6060f1SDimitry Andric #define _LIBCPP___ITERATOR_DATA_H 12fe6060f1SDimitry Andric 13fe6060f1SDimitry Andric #include <__config> 14fe6060f1SDimitry Andric #include <cstddef> 15fe6060f1SDimitry Andric #include <initializer_list> 16fe6060f1SDimitry Andric 17fe6060f1SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 18fe6060f1SDimitry Andric # pragma GCC system_header 19fe6060f1SDimitry Andric #endif 20fe6060f1SDimitry Andric 21fe6060f1SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 22fe6060f1SDimitry Andric 23*06c3fb27SDimitry Andric #if _LIBCPP_STD_VER >= 17 24fe6060f1SDimitry Andric 25fe6060f1SDimitry Andric template <class _Cont> constexpr 26fe6060f1SDimitry Andric _LIBCPP_INLINE_VISIBILITY 27fe6060f1SDimitry Andric auto data(_Cont& __c) 28fe6060f1SDimitry Andric _NOEXCEPT_(noexcept(__c.data())) 29fe6060f1SDimitry Andric -> decltype (__c.data()) 30fe6060f1SDimitry Andric { return __c.data(); } 31fe6060f1SDimitry Andric 32fe6060f1SDimitry Andric template <class _Cont> constexpr 33fe6060f1SDimitry Andric _LIBCPP_INLINE_VISIBILITY 34fe6060f1SDimitry Andric auto data(const _Cont& __c) 35fe6060f1SDimitry Andric _NOEXCEPT_(noexcept(__c.data())) 36fe6060f1SDimitry Andric -> decltype (__c.data()) 37fe6060f1SDimitry Andric { return __c.data(); } 38fe6060f1SDimitry Andric 39fe6060f1SDimitry Andric template <class _Tp, size_t _Sz> 40fe6060f1SDimitry Andric _LIBCPP_INLINE_VISIBILITY 41fe6060f1SDimitry Andric constexpr _Tp* data(_Tp (&__array)[_Sz]) noexcept { return __array; } 42fe6060f1SDimitry Andric 43fe6060f1SDimitry Andric template <class _Ep> 44fe6060f1SDimitry Andric _LIBCPP_INLINE_VISIBILITY 45fe6060f1SDimitry Andric constexpr const _Ep* data(initializer_list<_Ep> __il) noexcept { return __il.begin(); } 46fe6060f1SDimitry Andric 47fe6060f1SDimitry Andric #endif 48fe6060f1SDimitry Andric 49fe6060f1SDimitry Andric _LIBCPP_END_NAMESPACE_STD 50fe6060f1SDimitry Andric 51fe6060f1SDimitry Andric #endif // _LIBCPP___ITERATOR_DATA_H 52