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//===----------------------------------------------------------------------===//
//
// 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___ALGORITHM_RANGES_FILL_N_H
#define _LIBCPP___ALGORITHM_RANGES_FILL_N_H
#include <__config>
#include <__iterator/concepts.h>
#include <__iterator/incrementable_traits.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
#if _LIBCPP_STD_VER >= 20
_LIBCPP_BEGIN_NAMESPACE_STD
namespace ranges {
namespace __fill_n {
struct __fn {
template <class _Type, output_iterator<const _Type&> _Iter>
_LIBCPP_HIDE_FROM_ABI constexpr _Iter
operator()(_Iter __first, iter_difference_t<_Iter> __n, const _Type& __value) const {
for (; __n != 0; --__n) {
*__first = __value;
++__first;
}
return __first;
}
};
} // namespace __fill_n
inline namespace __cpo {
inline constexpr auto fill_n = __fill_n::__fn{};
} // namespace __cpo
} // namespace ranges
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_STD_VER >= 20
#endif // _LIBCPP___ALGORITHM_RANGES_FILL_N_H
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