14824e7fdSDimitry Andric // -*- C++ -*- 24824e7fdSDimitry Andric //===----------------------------------------------------------------------===// 34824e7fdSDimitry Andric // 44824e7fdSDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 54824e7fdSDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 64824e7fdSDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 74824e7fdSDimitry Andric // 84824e7fdSDimitry Andric //===----------------------------------------------------------------------===// 94824e7fdSDimitry Andric 104824e7fdSDimitry Andric #ifndef _LIBCPP___NUMERIC_REDUCE_H 114824e7fdSDimitry Andric #define _LIBCPP___NUMERIC_REDUCE_H 124824e7fdSDimitry Andric 134824e7fdSDimitry Andric #include <__config> 144824e7fdSDimitry Andric #include <__functional/operations.h> 154824e7fdSDimitry Andric #include <__iterator/iterator_traits.h> 164824e7fdSDimitry Andric 174824e7fdSDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 184824e7fdSDimitry Andric # pragma GCC system_header 194824e7fdSDimitry Andric #endif 204824e7fdSDimitry Andric 214824e7fdSDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 224824e7fdSDimitry Andric 234824e7fdSDimitry Andric #if _LIBCPP_STD_VER > 14 244824e7fdSDimitry Andric template <class _InputIterator, class _Tp, class _BinaryOp> 25*bdd1243dSDimitry Andric _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 _Tp reduce(_InputIterator __first, _InputIterator __last, 264824e7fdSDimitry Andric _Tp __init, _BinaryOp __b) { 274824e7fdSDimitry Andric for (; __first != __last; ++__first) 284824e7fdSDimitry Andric __init = __b(__init, *__first); 294824e7fdSDimitry Andric return __init; 304824e7fdSDimitry Andric } 314824e7fdSDimitry Andric 324824e7fdSDimitry Andric template <class _InputIterator, class _Tp> 33*bdd1243dSDimitry Andric _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 _Tp reduce(_InputIterator __first, _InputIterator __last, 344824e7fdSDimitry Andric _Tp __init) { 354824e7fdSDimitry Andric return _VSTD::reduce(__first, __last, __init, _VSTD::plus<>()); 364824e7fdSDimitry Andric } 374824e7fdSDimitry Andric 384824e7fdSDimitry Andric template <class _InputIterator> 39*bdd1243dSDimitry Andric _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 typename iterator_traits<_InputIterator>::value_type 404824e7fdSDimitry Andric reduce(_InputIterator __first, _InputIterator __last) { 414824e7fdSDimitry Andric return _VSTD::reduce(__first, __last, typename iterator_traits<_InputIterator>::value_type{}); 424824e7fdSDimitry Andric } 434824e7fdSDimitry Andric #endif 444824e7fdSDimitry Andric 454824e7fdSDimitry Andric _LIBCPP_END_NAMESPACE_STD 464824e7fdSDimitry Andric 474824e7fdSDimitry Andric #endif // _LIBCPP___NUMERIC_REDUCE_H 48