c8d735d675
https://libcxx.llvm.org/CodingGuidelines.html#apply-nodiscard-where-relevant Applied `[[nodiscard]]` to the remaining functions. Towards: https://github.com/llvm/llvm-project/issues/172124 This PR also eliminates libcxx/test/libcxx/numerics/nodiscard.verify.cpp, which was misplaced and contained unrelated tests. These tests were moved to where they belong. This refactoring is included in this PR as the change is also related to `<numeric>`. Reference: - https://eel.is/c++draft/numeric.ops.overview - https://eel.is/c++draft/numeric.ops --------- Co-authored-by: Hristo Hristov <zingam@outlook.com>
53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___NUMERIC_ACCUMULATE_H
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#define _LIBCPP___NUMERIC_ACCUMULATE_H
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#include <__config>
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#include <__utility/move.h>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_PUSH_MACROS
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#include <__undef_macros>
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_LIBCPP_BEGIN_NAMESPACE_STD
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template <class _InputIterator, class _Tp>
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[[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Tp
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accumulate(_InputIterator __first, _InputIterator __last, _Tp __init) {
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for (; __first != __last; ++__first)
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#if _LIBCPP_STD_VER >= 20
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__init = std::move(__init) + *__first;
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#else
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__init = __init + *__first;
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#endif
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return __init;
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}
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template <class _InputIterator, class _Tp, class _BinaryOperation>
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[[__nodiscard__]] _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Tp
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accumulate(_InputIterator __first, _InputIterator __last, _Tp __init, _BinaryOperation __binary_op) {
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for (; __first != __last; ++__first)
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#if _LIBCPP_STD_VER >= 20
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__init = __binary_op(std::move(__init), *__first);
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#else
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__init = __binary_op(__init, *__first);
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#endif
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return __init;
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}
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_LIBCPP_END_NAMESPACE_STD
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_LIBCPP_POP_MACROS
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#endif // _LIBCPP___NUMERIC_ACCUMULATE_H
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