libcxx/include/__algorithm/generate.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_H
#define _LIBCPP___ALGORITHM_GENERATE_H

#include <__algorithm/for_each.h>
#include <__config>
#include <__utility/forward.h>

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

_LIBCPP_BEGIN_NAMESPACE_STD

template <class _ForwardIterator, class _Generator>
inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void
generate(_ForwardIterator __first, _ForwardIterator __last, _Generator __gen) {
  using __iter_ref = decltype(*__first);
  std::for_each(__first, __last, [&](__iter_ref __element) { std::forward<__iter_ref>(__element) = __gen(); });
}

_LIBCPP_END_NAMESPACE_STD

#endif // _LIBCPP___ALGORITHM_GENERATE_H