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_TRANSFORM_H
10#define _LIBCPP___ALGORITHM_TRANSFORM_H
11
12#include <__config>
13
14#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
15#  pragma GCC system_header
16#endif
17
18_LIBCPP_BEGIN_NAMESPACE_STD
19
20template <class _InputIterator, class _OutputIterator, class _UnaryOperation>
21inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator
22transform(_InputIterator __first, _InputIterator __last, _OutputIterator __result, _UnaryOperation __op) {
23  for (; __first != __last; ++__first, (void)++__result)
24    *__result = __op(*__first);
25  return __result;
26}
27
28template <class _InputIterator1, class _InputIterator2, class _OutputIterator, class _BinaryOperation>
29inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator transform(
30    _InputIterator1 __first1,
31    _InputIterator1 __last1,
32    _InputIterator2 __first2,
33    _OutputIterator __result,
34    _BinaryOperation __binary_op) {
35  for (; __first1 != __last1; ++__first1, (void)++__first2, ++__result)
36    *__result = __binary_op(*__first1, *__first2);
37  return __result;
38}
39
40_LIBCPP_END_NAMESPACE_STD
41
42#endif // _LIBCPP___ALGORITHM_TRANSFORM_H
43