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