1*fe6060f1SDimitry Andric // -*- C++ -*- 2*fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 3*fe6060f1SDimitry Andric // 4*fe6060f1SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5*fe6060f1SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 6*fe6060f1SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7*fe6060f1SDimitry Andric // 8*fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 9*fe6060f1SDimitry Andric 10*fe6060f1SDimitry Andric #ifndef _LIBCPP___ITERATOR_DATA_H 11*fe6060f1SDimitry Andric #define _LIBCPP___ITERATOR_DATA_H 12*fe6060f1SDimitry Andric 13*fe6060f1SDimitry Andric #include <__config> 14*fe6060f1SDimitry Andric #include <cstddef> 15*fe6060f1SDimitry Andric #include <initializer_list> 16*fe6060f1SDimitry Andric 17*fe6060f1SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 18*fe6060f1SDimitry Andric #pragma GCC system_header 19*fe6060f1SDimitry Andric #endif 20*fe6060f1SDimitry Andric 21*fe6060f1SDimitry Andric _LIBCPP_PUSH_MACROS 22*fe6060f1SDimitry Andric #include <__undef_macros> 23*fe6060f1SDimitry Andric 24*fe6060f1SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 25*fe6060f1SDimitry Andric 26*fe6060f1SDimitry Andric #if _LIBCPP_STD_VER > 14 27*fe6060f1SDimitry Andric 28*fe6060f1SDimitry Andric template <class _Cont> constexpr 29*fe6060f1SDimitry Andric _LIBCPP_INLINE_VISIBILITY 30*fe6060f1SDimitry Andric auto data(_Cont& __c) 31*fe6060f1SDimitry Andric _NOEXCEPT_(noexcept(__c.data())) 32*fe6060f1SDimitry Andric -> decltype (__c.data()) 33*fe6060f1SDimitry Andric { return __c.data(); } 34*fe6060f1SDimitry Andric 35*fe6060f1SDimitry Andric template <class _Cont> constexpr 36*fe6060f1SDimitry Andric _LIBCPP_INLINE_VISIBILITY 37*fe6060f1SDimitry Andric auto data(const _Cont& __c) 38*fe6060f1SDimitry Andric _NOEXCEPT_(noexcept(__c.data())) 39*fe6060f1SDimitry Andric -> decltype (__c.data()) 40*fe6060f1SDimitry Andric { return __c.data(); } 41*fe6060f1SDimitry Andric 42*fe6060f1SDimitry Andric template <class _Tp, size_t _Sz> 43*fe6060f1SDimitry Andric _LIBCPP_INLINE_VISIBILITY 44*fe6060f1SDimitry Andric constexpr _Tp* data(_Tp (&__array)[_Sz]) noexcept { return __array; } 45*fe6060f1SDimitry Andric 46*fe6060f1SDimitry Andric template <class _Ep> 47*fe6060f1SDimitry Andric _LIBCPP_INLINE_VISIBILITY 48*fe6060f1SDimitry Andric constexpr const _Ep* data(initializer_list<_Ep> __il) noexcept { return __il.begin(); } 49*fe6060f1SDimitry Andric 50*fe6060f1SDimitry Andric #endif 51*fe6060f1SDimitry Andric 52*fe6060f1SDimitry Andric _LIBCPP_END_NAMESPACE_STD 53*fe6060f1SDimitry Andric 54*fe6060f1SDimitry Andric _LIBCPP_POP_MACROS 55*fe6060f1SDimitry Andric 56*fe6060f1SDimitry Andric #endif // _LIBCPP___ITERATOR_DATA_H 57