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_PUSH_MACROS 19 #include <__undef_macros> 20 21 _LIBCPP_BEGIN_NAMESPACE_STD 22 23 template <class _InputIterator, class _OutputIterator, class _UnaryOperation> 24 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 25 _OutputIterator 26 transform(_InputIterator __first, _InputIterator __last, _OutputIterator __result, _UnaryOperation __op) 27 { 28 for (; __first != __last; ++__first, (void) ++__result) 29 *__result = __op(*__first); 30 return __result; 31 } 32 33 template <class _InputIterator1, class _InputIterator2, class _OutputIterator, class _BinaryOperation> 34 inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 35 _OutputIterator 36 transform(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, 37 _OutputIterator __result, _BinaryOperation __binary_op) 38 { 39 for (; __first1 != __last1; ++__first1, (void) ++__first2, ++__result) 40 *__result = __binary_op(*__first1, *__first2); 41 return __result; 42 } 43 44 _LIBCPP_END_NAMESPACE_STD 45 46 _LIBCPP_POP_MACROS 47 48 #endif // _LIBCPP___ALGORITHM_TRANSFORM_H 49