cosmopolitan/third_party/libcxx/__algorithm/generate_n.h

//===----------------------------------------------------------------------===//
//
// 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_GENERATE_N_H
#define _LIBCPP___ALGORITHM_GENERATE_N_H

#include <__config>
#include <__utility/convert_to_integral.h>

#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#  pragma GCC system_header
#endif

_LIBCPP_BEGIN_NAMESPACE_STD

template <class _OutputIterator, class _Size, class _Generator>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator
generate_n(_OutputIterator __first, _Size __orig_n, _Generator __gen) {
  typedef decltype(std::__convert_to_integral(__orig_n)) _IntegralSize;
  _IntegralSize __n = __orig_n;
  for (; __n > 0; ++__first, (void)--__n)
    *__first = __gen();
  return __first;
}

_LIBCPP_END_NAMESPACE_STD

#endif // _LIBCPP___ALGORITHM_GENERATE_N_H