1//===----------------------------------------------------------------------===//
 2//
 3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 4// See https://llvm.org/LICENSE.txt for license information.
 5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 6//
 7//===----------------------------------------------------------------------===//
 8
 9#ifndef _LIBCPP___ALGORITHM_RANGES_FILL_N_H
10#define _LIBCPP___ALGORITHM_RANGES_FILL_N_H
11
12#include <__algorithm/fill_n.h>
13#include <__config>
14#include <__iterator/concepts.h>
15#include <__iterator/incrementable_traits.h>
16#include <__utility/move.h>
17
18#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
19#  pragma GCC system_header
20#endif
21
22_LIBCPP_PUSH_MACROS
23#include <__undef_macros>
24
25#if _LIBCPP_STD_VER >= 20
26
27_LIBCPP_BEGIN_NAMESPACE_STD
28
29namespace ranges {
30struct __fill_n {
31  template <class _Type, output_iterator<const _Type&> _Iter>
32  _LIBCPP_HIDE_FROM_ABI constexpr _Iter
33  operator()(_Iter __first, iter_difference_t<_Iter> __n, const _Type& __value) const {
34    return std::__fill_n(std::move(__first), __n, __value);
35  }
36};
37
38inline namespace __cpo {
39inline constexpr auto fill_n = __fill_n{};
40} // namespace __cpo
41} // namespace ranges
42
43_LIBCPP_END_NAMESPACE_STD
44
45#endif // _LIBCPP_STD_VER >= 20
46
47_LIBCPP_POP_MACROS
48
49#endif // _LIBCPP___ALGORITHM_RANGES_FILL_N_H