| // -*- C++ -*- |
| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP___NUMERIC_TRANSFORM_REDUCE_H |
| #define _LIBCPP___NUMERIC_TRANSFORM_REDUCE_H |
| |
| #include <__config> |
| #include <__functional/operations.h> |
| #include <__utility/move.h> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| #if _LIBCPP_STD_VER > 14 |
| template <class _InputIterator, class _Tp, class _BinaryOp, class _UnaryOp> |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 _Tp transform_reduce(_InputIterator __first, |
| _InputIterator __last, _Tp __init, |
| _BinaryOp __b, _UnaryOp __u) { |
| for (; __first != __last; ++__first) |
| __init = __b(__init, __u(*__first)); |
| return __init; |
| } |
| |
| template <class _InputIterator1, class _InputIterator2, class _Tp, class _BinaryOp1, class _BinaryOp2> |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 _Tp transform_reduce(_InputIterator1 __first1, |
| _InputIterator1 __last1, |
| _InputIterator2 __first2, _Tp __init, |
| _BinaryOp1 __b1, _BinaryOp2 __b2) { |
| for (; __first1 != __last1; ++__first1, (void)++__first2) |
| __init = __b1(__init, __b2(*__first1, *__first2)); |
| return __init; |
| } |
| |
| template <class _InputIterator1, class _InputIterator2, class _Tp> |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 _Tp transform_reduce(_InputIterator1 __first1, |
| _InputIterator1 __last1, |
| _InputIterator2 __first2, _Tp __init) { |
| return _VSTD::transform_reduce(__first1, __last1, __first2, _VSTD::move(__init), _VSTD::plus<>(), |
| _VSTD::multiplies<>()); |
| } |
| #endif |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___NUMERIC_TRANSFORM_REDUCE_H |
