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Kaido Kert788710a2023-06-05 07:50:22 -07001// -*- 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
Kaido Kert56d7c4e2024-04-13 12:59:27 -070023#if _LIBCPP_STD_VER >= 17
Kaido Kert788710a2023-06-05 07:50:22 -070024
25template <class _Cont> constexpr
26_LIBCPP_INLINE_VISIBILITY
27auto data(_Cont& __c)
28_NOEXCEPT_(noexcept(__c.data()))
29-> decltype (__c.data())
30{ return __c.data(); }
31
32template <class _Cont> constexpr
33_LIBCPP_INLINE_VISIBILITY
34auto data(const _Cont& __c)
35_NOEXCEPT_(noexcept(__c.data()))
36-> decltype (__c.data())
37{ return __c.data(); }
38
39template <class _Tp, size_t _Sz>
40_LIBCPP_INLINE_VISIBILITY
41constexpr _Tp* data(_Tp (&__array)[_Sz]) noexcept { return __array; }
42
43template <class _Ep>
44_LIBCPP_INLINE_VISIBILITY
45constexpr const _Ep* data(initializer_list<_Ep> __il) noexcept { return __il.begin(); }
46
47#endif
48
49_LIBCPP_END_NAMESPACE_STD
50
51#endif // _LIBCPP___ITERATOR_DATA_H