1e78f53d1SNikolas Klauser // -*- C++ -*- 2e78f53d1SNikolas Klauser //===----------------------------------------------------------------------===// 3e78f53d1SNikolas Klauser // 4e78f53d1SNikolas Klauser // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5e78f53d1SNikolas Klauser // See https://llvm.org/LICENSE.txt for license information. 6e78f53d1SNikolas Klauser // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7e78f53d1SNikolas Klauser // 8e78f53d1SNikolas Klauser //===----------------------------------------------------------------------===// 9e78f53d1SNikolas Klauser 10*ce777190SNikolas Klauser #ifndef _LIBCPP___CXX03___NUMERIC_TRANSFORM_REDUCE_H 11*ce777190SNikolas Klauser #define _LIBCPP___CXX03___NUMERIC_TRANSFORM_REDUCE_H 12e78f53d1SNikolas Klauser 1373fbae83SNikolas Klauser #include <__cxx03/__config> 1473fbae83SNikolas Klauser #include <__cxx03/__functional/operations.h> 1573fbae83SNikolas Klauser #include <__cxx03/__utility/move.h> 16e78f53d1SNikolas Klauser 17e78f53d1SNikolas Klauser #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 18e78f53d1SNikolas Klauser # pragma GCC system_header 19e78f53d1SNikolas Klauser #endif 20e78f53d1SNikolas Klauser 21e78f53d1SNikolas Klauser _LIBCPP_PUSH_MACROS 2273fbae83SNikolas Klauser #include <__cxx03/__undef_macros> 23e78f53d1SNikolas Klauser 24e78f53d1SNikolas Klauser _LIBCPP_BEGIN_NAMESPACE_STD 25e78f53d1SNikolas Klauser 26e78f53d1SNikolas Klauser #if _LIBCPP_STD_VER >= 17 27e78f53d1SNikolas Klauser template <class _InputIterator, class _Tp, class _BinaryOp, class _UnaryOp> 28e78f53d1SNikolas Klauser _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Tp 29e78f53d1SNikolas Klauser transform_reduce(_InputIterator __first, _InputIterator __last, _Tp __init, _BinaryOp __b, _UnaryOp __u) { 30e78f53d1SNikolas Klauser for (; __first != __last; ++__first) 31e78f53d1SNikolas Klauser __init = __b(std::move(__init), __u(*__first)); 32e78f53d1SNikolas Klauser return __init; 33e78f53d1SNikolas Klauser } 34e78f53d1SNikolas Klauser 35e78f53d1SNikolas Klauser template <class _InputIterator1, class _InputIterator2, class _Tp, class _BinaryOp1, class _BinaryOp2> 36e78f53d1SNikolas Klauser _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Tp transform_reduce( 37e78f53d1SNikolas Klauser _InputIterator1 __first1, 38e78f53d1SNikolas Klauser _InputIterator1 __last1, 39e78f53d1SNikolas Klauser _InputIterator2 __first2, 40e78f53d1SNikolas Klauser _Tp __init, 41e78f53d1SNikolas Klauser _BinaryOp1 __b1, 42e78f53d1SNikolas Klauser _BinaryOp2 __b2) { 43e78f53d1SNikolas Klauser for (; __first1 != __last1; ++__first1, (void)++__first2) 44e78f53d1SNikolas Klauser __init = __b1(std::move(__init), __b2(*__first1, *__first2)); 45e78f53d1SNikolas Klauser return __init; 46e78f53d1SNikolas Klauser } 47e78f53d1SNikolas Klauser 48e78f53d1SNikolas Klauser template <class _InputIterator1, class _InputIterator2, class _Tp> 49e78f53d1SNikolas Klauser _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Tp 50e78f53d1SNikolas Klauser transform_reduce(_InputIterator1 __first1, _InputIterator1 __last1, _InputIterator2 __first2, _Tp __init) { 51e78f53d1SNikolas Klauser return std::transform_reduce(__first1, __last1, __first2, std::move(__init), std::plus<>(), std::multiplies<>()); 52e78f53d1SNikolas Klauser } 53e78f53d1SNikolas Klauser #endif 54e78f53d1SNikolas Klauser 55e78f53d1SNikolas Klauser _LIBCPP_END_NAMESPACE_STD 56e78f53d1SNikolas Klauser 57e78f53d1SNikolas Klauser _LIBCPP_POP_MACROS 58e78f53d1SNikolas Klauser 59*ce777190SNikolas Klauser #endif // _LIBCPP___CXX03___NUMERIC_TRANSFORM_REDUCE_H 60