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 20 template <class _InputIterator, class _OutputIterator, class _UnaryOperation> 21 inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _OutputIterator 22 transform(_InputIterator __first, _InputIterator __last, _OutputIterator __result, _UnaryOperation __op) { 23 for (; __first != __last; ++__first, (void)++__result) 24 *__result = __op(*__first); 25 return __result; 26 } 27 28 template <class _InputIterator1, class _InputIterator2, class _OutputIterator, class _BinaryOperation> 29 inline _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