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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___ITERATOR_DATA_H
#define _LIBCPP___ITERATOR_DATA_H
#include <__config>
#include <cstddef>
#include <initializer_list>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
#if _LIBCPP_STD_VER >= 17
template <class _Cont> constexpr
_LIBCPP_INLINE_VISIBILITY
auto data(_Cont& __c)
_NOEXCEPT_(noexcept(__c.data()))
-> decltype (__c.data())
{ return __c.data(); }
template <class _Cont> constexpr
_LIBCPP_INLINE_VISIBILITY
auto data(const _Cont& __c)
_NOEXCEPT_(noexcept(__c.data()))
-> decltype (__c.data())
{ return __c.data(); }
template <class _Tp, size_t _Sz>
_LIBCPP_INLINE_VISIBILITY
constexpr _Tp* data(_Tp (&__array)[_Sz]) noexcept { return __array; }
template <class _Ep>
_LIBCPP_INLINE_VISIBILITY
constexpr const _Ep* data(initializer_list<_Ep> __il) noexcept { return __il.begin(); }
#endif
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___ITERATOR_DATA_H
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