1*4824e7fdSDimitry Andric // -*- C++ -*- 2*4824e7fdSDimitry Andric //===----------------------------------------------------------------------===// 3*4824e7fdSDimitry Andric // 4*4824e7fdSDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5*4824e7fdSDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 6*4824e7fdSDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7*4824e7fdSDimitry Andric // 8*4824e7fdSDimitry Andric //===----------------------------------------------------------------------===// 9*4824e7fdSDimitry Andric 10*4824e7fdSDimitry Andric #ifndef _LIBCPP___NUMERIC_ACCUMULATE_H 11*4824e7fdSDimitry Andric #define _LIBCPP___NUMERIC_ACCUMULATE_H 12*4824e7fdSDimitry Andric 13*4824e7fdSDimitry Andric #include <__config> 14*4824e7fdSDimitry Andric #include <__utility/move.h> 15*4824e7fdSDimitry Andric 16*4824e7fdSDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 17*4824e7fdSDimitry Andric #pragma GCC system_header 18*4824e7fdSDimitry Andric #endif 19*4824e7fdSDimitry Andric 20*4824e7fdSDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 21*4824e7fdSDimitry Andric 22*4824e7fdSDimitry Andric template <class _InputIterator, class _Tp> 23*4824e7fdSDimitry Andric _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 24*4824e7fdSDimitry Andric _Tp 25*4824e7fdSDimitry Andric accumulate(_InputIterator __first, _InputIterator __last, _Tp __init) 26*4824e7fdSDimitry Andric { 27*4824e7fdSDimitry Andric for (; __first != __last; ++__first) 28*4824e7fdSDimitry Andric #if _LIBCPP_STD_VER > 17 29*4824e7fdSDimitry Andric __init = _VSTD::move(__init) + *__first; 30*4824e7fdSDimitry Andric #else 31*4824e7fdSDimitry Andric __init = __init + *__first; 32*4824e7fdSDimitry Andric #endif 33*4824e7fdSDimitry Andric return __init; 34*4824e7fdSDimitry Andric } 35*4824e7fdSDimitry Andric 36*4824e7fdSDimitry Andric template <class _InputIterator, class _Tp, class _BinaryOperation> 37*4824e7fdSDimitry Andric _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 38*4824e7fdSDimitry Andric _Tp 39*4824e7fdSDimitry Andric accumulate(_InputIterator __first, _InputIterator __last, _Tp __init, _BinaryOperation __binary_op) 40*4824e7fdSDimitry Andric { 41*4824e7fdSDimitry Andric for (; __first != __last; ++__first) 42*4824e7fdSDimitry Andric #if _LIBCPP_STD_VER > 17 43*4824e7fdSDimitry Andric __init = __binary_op(_VSTD::move(__init), *__first); 44*4824e7fdSDimitry Andric #else 45*4824e7fdSDimitry Andric __init = __binary_op(__init, *__first); 46*4824e7fdSDimitry Andric #endif 47*4824e7fdSDimitry Andric return __init; 48*4824e7fdSDimitry Andric } 49*4824e7fdSDimitry Andric 50*4824e7fdSDimitry Andric _LIBCPP_END_NAMESPACE_STD 51*4824e7fdSDimitry Andric 52*4824e7fdSDimitry Andric #endif // _LIBCPP___NUMERIC_ACCUMULATE_H 53