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 # pragma clang include_instead(<algorithm>) 17 #endif 18 19 _LIBCPP_BEGIN_NAMESPACE_STD 20 21 template <class _InputIterator, class _OutputIterator, class _UnaryOperation> 22 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 23 _OutputIterator 24 transform(_InputIterator __first, _InputIterator __last, _OutputIterator __result, _UnaryOperation __op) 25 { 26 for (; __first != __last; ++__first, (void) ++__result) 27 *__result = __op(*__first); 28 return __result; 29 } 30 31 template <class _InputIterator1, class _InputIterator2, class _OutputIterator, class _BinaryOperation> 32 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 33 _OutputIterator 34 transform(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, 35 _OutputIterator __result, _BinaryOperation __binary_op) 36 { 37 for (; __first1 != __last1; ++__first1, (void) ++__first2, ++__result) 38 *__result = __binary_op(*__first1, *__first2); 39 return __result; 40 } 41 42 _LIBCPP_END_NAMESPACE_STD 43 44 #endif // _LIBCPP___ALGORITHM_TRANSFORM_H 45