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1// -*- C++ -*-2//===----------------------------------------------------------------------===//3//4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.5// See https://llvm.org/LICENSE.txt for license information.6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7//8//===----------------------------------------------------------------------===//9 10#ifndef _LIBCPP___NUMERIC_ACCUMULATE_H11#define _LIBCPP___NUMERIC_ACCUMULATE_H12 13#include <__config>14#include <__utility/move.h>15 16#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)17# pragma GCC system_header18#endif19 20_LIBCPP_PUSH_MACROS21#include <__undef_macros>22 23_LIBCPP_BEGIN_NAMESPACE_STD24 25template <class _InputIterator, class _Tp>26_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Tp27accumulate(_InputIterator __first, _InputIterator __last, _Tp __init) {28 for (; __first != __last; ++__first)29#if _LIBCPP_STD_VER >= 2030 __init = std::move(__init) + *__first;31#else32 __init = __init + *__first;33#endif34 return __init;35}36 37template <class _InputIterator, class _Tp, class _BinaryOperation>38_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Tp39accumulate(_InputIterator __first, _InputIterator __last, _Tp __init, _BinaryOperation __binary_op) {40 for (; __first != __last; ++__first)41#if _LIBCPP_STD_VER >= 2042 __init = __binary_op(std::move(__init), *__first);43#else44 __init = __binary_op(__init, *__first);45#endif46 return __init;47}48 49_LIBCPP_END_NAMESPACE_STD50 51_LIBCPP_POP_MACROS52 53#endif // _LIBCPP___NUMERIC_ACCUMULATE_H54