4f15267d3d
This change is almost fully mechanical. The only interesting change is in `generate_feature_test_macro_components.py` to generate `_LIBCPP_STD_VER >=` instead. To avoid churn in the git-blame this commit should be added to the `.git-blame-ignore-revs` once committed. Reviewed By: ldionne, var-const, #libc Spies: jloser, libcxx-commits, arichardson, arphaman, wenlei Differential Revision: https://reviews.llvm.org/D143962
48 lines
1.7 KiB
C++
48 lines
1.7 KiB
C++
// -*- C++ -*-
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef _LIBCPP___NUMERIC_REDUCE_H
|
|
#define _LIBCPP___NUMERIC_REDUCE_H
|
|
|
|
#include <__config>
|
|
#include <__functional/operations.h>
|
|
#include <__iterator/iterator_traits.h>
|
|
|
|
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
|
|
# pragma GCC system_header
|
|
#endif
|
|
|
|
_LIBCPP_BEGIN_NAMESPACE_STD
|
|
|
|
#if _LIBCPP_STD_VER >= 17
|
|
template <class _InputIterator, class _Tp, class _BinaryOp>
|
|
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 _Tp reduce(_InputIterator __first, _InputIterator __last,
|
|
_Tp __init, _BinaryOp __b) {
|
|
for (; __first != __last; ++__first)
|
|
__init = __b(__init, *__first);
|
|
return __init;
|
|
}
|
|
|
|
template <class _InputIterator, class _Tp>
|
|
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 _Tp reduce(_InputIterator __first, _InputIterator __last,
|
|
_Tp __init) {
|
|
return _VSTD::reduce(__first, __last, __init, _VSTD::plus<>());
|
|
}
|
|
|
|
template <class _InputIterator>
|
|
_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20 typename iterator_traits<_InputIterator>::value_type
|
|
reduce(_InputIterator __first, _InputIterator __last) {
|
|
return _VSTD::reduce(__first, __last, typename iterator_traits<_InputIterator>::value_type{});
|
|
}
|
|
#endif
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
#endif // _LIBCPP___NUMERIC_REDUCE_H
|