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