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9783f28cbb
This patch runs clang-format on all of libcxx/include and libcxx/src, in accordance with the RFC discussed at [1]. Follow-up patches will format the benchmarks, the test suite and remaining parts of the code. I'm splitting this one into its own patch so the diff is a bit easier to review. This patch was generated with: find libcxx/include libcxx/src -type f \ | grep -v 'module.modulemap.in' \ | grep -v 'CMakeLists.txt' \ | grep -v 'README.txt' \ | grep -v 'libcxx.imp' \ | grep -v '__config_site.in' \ | xargs clang-format -i A Git merge driver is available in libcxx/utils/clang-format-merge-driver.sh to help resolve merge and rebase issues across these formatting changes. [1]: https://discourse.llvm.org/t/rfc-clang-formatting-all-of-libc-once-and-for-all
66 lines
2.2 KiB
C++
66 lines
2.2 KiB
C++
//===----------------------------------------------------------------------===//
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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___ATOMIC_MEMORY_ORDER_H
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#define _LIBCPP___ATOMIC_MEMORY_ORDER_H
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#include <__config>
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#include <__type_traits/is_same.h>
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#include <__type_traits/underlying_type.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_BEGIN_NAMESPACE_STD
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// Figure out what the underlying type for `memory_order` would be if it were
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// declared as an unscoped enum (accounting for -fshort-enums). Use this result
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// to pin the underlying type in C++20.
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enum __legacy_memory_order { __mo_relaxed, __mo_consume, __mo_acquire, __mo_release, __mo_acq_rel, __mo_seq_cst };
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using __memory_order_underlying_t = underlying_type<__legacy_memory_order>::type;
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#if _LIBCPP_STD_VER >= 20
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enum class memory_order : __memory_order_underlying_t {
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relaxed = __mo_relaxed,
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consume = __mo_consume,
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acquire = __mo_acquire,
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release = __mo_release,
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acq_rel = __mo_acq_rel,
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seq_cst = __mo_seq_cst
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};
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static_assert((is_same<underlying_type<memory_order>::type, __memory_order_underlying_t>::value),
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"unexpected underlying type for std::memory_order");
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inline constexpr auto memory_order_relaxed = memory_order::relaxed;
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inline constexpr auto memory_order_consume = memory_order::consume;
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inline constexpr auto memory_order_acquire = memory_order::acquire;
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inline constexpr auto memory_order_release = memory_order::release;
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inline constexpr auto memory_order_acq_rel = memory_order::acq_rel;
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inline constexpr auto memory_order_seq_cst = memory_order::seq_cst;
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#else
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enum memory_order {
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memory_order_relaxed = __mo_relaxed,
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memory_order_consume = __mo_consume,
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memory_order_acquire = __mo_acquire,
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memory_order_release = __mo_release,
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memory_order_acq_rel = __mo_acq_rel,
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memory_order_seq_cst = __mo_seq_cst,
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};
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#endif // _LIBCPP_STD_VER >= 20
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___ATOMIC_MEMORY_ORDER_H
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