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_PUSH_MACROS 22 #include <__undef_macros> 23 24 _LIBCPP_BEGIN_NAMESPACE_STD 25 26 #if _LIBCPP_STD_VER > 14 27 28 template <class _Cont> constexpr 29 _LIBCPP_INLINE_VISIBILITY 30 auto data(_Cont& __c) 31 _NOEXCEPT_(noexcept(__c.data())) 32 -> decltype (__c.data()) 33 { return __c.data(); } 34 35 template <class _Cont> constexpr 36 _LIBCPP_INLINE_VISIBILITY 37 auto data(const _Cont& __c) 38 _NOEXCEPT_(noexcept(__c.data())) 39 -> decltype (__c.data()) 40 { return __c.data(); } 41 42 template <class _Tp, size_t _Sz> 43 _LIBCPP_INLINE_VISIBILITY 44 constexpr _Tp* data(_Tp (&__array)[_Sz]) noexcept { return __array; } 45 46 template <class _Ep> 47 _LIBCPP_INLINE_VISIBILITY 48 constexpr const _Ep* data(initializer_list<_Ep> __il) noexcept { return __il.begin(); } 49 50 #endif 51 52 _LIBCPP_END_NAMESPACE_STD 53 54 _LIBCPP_POP_MACROS 55 56 #endif // _LIBCPP___ITERATOR_DATA_H 57