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-exception 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef _LIBCPP___NUMERIC_ACCUMULATE_H 11 #define _LIBCPP___NUMERIC_ACCUMULATE_H 12 13 #include <__config> 14 #include <__utility/move.h> 15 16 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 17 # pragma GCC system_header 18 #endif 19 20 _LIBCPP_BEGIN_NAMESPACE_STD 21 22 template <class _InputIterator, class _Tp> 23 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 24 _Tp 25 accumulate(_InputIterator __first, _InputIterator __last, _Tp __init) 26 { 27 for (; __first != __last; ++__first) 28 #if _LIBCPP_STD_VER > 17 29 __init = _VSTD::move(__init) + *__first; 30 #else 31 __init = __init + *__first; 32 #endif 33 return __init; 34 } 35 36 template <class _InputIterator, class _Tp, class _BinaryOperation> 37 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 38 _Tp 39 accumulate(_InputIterator __first, _InputIterator __last, _Tp __init, _BinaryOperation __binary_op) 40 { 41 for (; __first != __last; ++__first) 42 #if _LIBCPP_STD_VER > 17 43 __init = __binary_op(_VSTD::move(__init), *__first); 44 #else 45 __init = __binary_op(__init, *__first); 46 #endif 47 return __init; 48 } 49 50 _LIBCPP_END_NAMESPACE_STD 51 52 #endif // _LIBCPP___NUMERIC_ACCUMULATE_H 53