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_PUSH_MACROS 21 #include <__undef_macros> 22 23 _LIBCPP_BEGIN_NAMESPACE_STD 24 25 template <class _InputIterator, class _Tp> 26 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 27 _Tp 28 accumulate(_InputIterator __first, _InputIterator __last, _Tp __init) 29 { 30 for (; __first != __last; ++__first) 31 #if _LIBCPP_STD_VER >= 20 32 __init = _VSTD::move(__init) + *__first; 33 #else 34 __init = __init + *__first; 35 #endif 36 return __init; 37 } 38 39 template <class _InputIterator, class _Tp, class _BinaryOperation> 40 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 41 _Tp 42 accumulate(_InputIterator __first, _InputIterator __last, _Tp __init, _BinaryOperation __binary_op) 43 { 44 for (; __first != __last; ++__first) 45 #if _LIBCPP_STD_VER >= 20 46 __init = __binary_op(_VSTD::move(__init), *__first); 47 #else 48 __init = __binary_op(__init, *__first); 49 #endif 50 return __init; 51 } 52 53 _LIBCPP_END_NAMESPACE_STD 54 55 _LIBCPP_POP_MACROS 56 57 #endif // _LIBCPP___NUMERIC_ACCUMULATE_H 58