1fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 2fe6060f1SDimitry Andric // 3fe6060f1SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4fe6060f1SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5fe6060f1SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6fe6060f1SDimitry Andric // 7fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 8fe6060f1SDimitry Andric 9fe6060f1SDimitry Andric #ifndef _LIBCPP___ALGORITHM_TRANSFORM_H 10fe6060f1SDimitry Andric #define _LIBCPP___ALGORITHM_TRANSFORM_H 11fe6060f1SDimitry Andric 12fe6060f1SDimitry Andric #include <__config> 13fe6060f1SDimitry Andric 14fe6060f1SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 15fe6060f1SDimitry Andric # pragma GCC system_header 16fe6060f1SDimitry Andric #endif 17fe6060f1SDimitry Andric 18fe6060f1SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 19fe6060f1SDimitry Andric 20fe6060f1SDimitry Andric template <class _InputIterator, class _OutputIterator, class _UnaryOperation> 21*cb14a3feSDimitry Andric inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator 22*cb14a3feSDimitry Andric transform(_InputIterator __first, _InputIterator __last, _OutputIterator __result, _UnaryOperation __op) { 23fe6060f1SDimitry Andric for (; __first != __last; ++__first, (void)++__result) 24fe6060f1SDimitry Andric *__result = __op(*__first); 25fe6060f1SDimitry Andric return __result; 26fe6060f1SDimitry Andric } 27fe6060f1SDimitry Andric 28fe6060f1SDimitry Andric template <class _InputIterator1, class _InputIterator2, class _OutputIterator, class _BinaryOperation> 29*cb14a3feSDimitry Andric inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator transform( 30*cb14a3feSDimitry Andric _InputIterator1 __first1, 31*cb14a3feSDimitry Andric _InputIterator1 __last1, 32*cb14a3feSDimitry Andric _InputIterator2 __first2, 33*cb14a3feSDimitry Andric _OutputIterator __result, 34*cb14a3feSDimitry Andric _BinaryOperation __binary_op) { 35fe6060f1SDimitry Andric for (; __first1 != __last1; ++__first1, (void)++__first2, ++__result) 36fe6060f1SDimitry Andric *__result = __binary_op(*__first1, *__first2); 37fe6060f1SDimitry Andric return __result; 38fe6060f1SDimitry Andric } 39fe6060f1SDimitry Andric 40fe6060f1SDimitry Andric _LIBCPP_END_NAMESPACE_STD 41fe6060f1SDimitry Andric 42fe6060f1SDimitry Andric #endif // _LIBCPP___ALGORITHM_TRANSFORM_H 43