eabd8a9af8
In this release: - [x] `file_clock` - [x] `steady_clock` - [x] `system_clock` - [x] `time_point` - [x] some `hash` specializations Any other existing clocks are already annotated. Annotated some `hash` specializations for already annotated classes. `[[nodiscard]]` should be applied to functions where discarding the return value is most likely a correctness issue. - https://libcxx.llvm.org/CodingGuidelines.html - https://wg21.link/time.point - https://wg21.link/time.clock.file - https://wg21.link/time.clock.steady - https://wg21.link/time.clock.system Towards #172124
53 lines
1.4 KiB
C++
53 lines
1.4 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___CHRONO_SYSTEM_CLOCK_H
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#define _LIBCPP___CHRONO_SYSTEM_CLOCK_H
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#include <__chrono/duration.h>
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#include <__chrono/time_point.h>
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#include <__config>
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#include <ctime>
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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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namespace chrono {
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class _LIBCPP_EXPORTED_FROM_ABI system_clock {
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public:
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typedef microseconds duration;
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typedef duration::rep rep;
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typedef duration::period period;
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typedef chrono::time_point<system_clock> time_point;
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static _LIBCPP_CONSTEXPR_SINCE_CXX14 const bool is_steady = false;
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[[__nodiscard__]] static time_point now() _NOEXCEPT;
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[[__nodiscard__]] static time_t to_time_t(const time_point& __t) _NOEXCEPT;
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[[__nodiscard__]] static time_point from_time_t(time_t __t) _NOEXCEPT;
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};
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#if _LIBCPP_STD_VER >= 20
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template <class _Duration>
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using sys_time = time_point<system_clock, _Duration>;
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using sys_seconds = sys_time<seconds>;
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using sys_days = sys_time<days>;
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#endif
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} // namespace chrono
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___CHRONO_SYSTEM_CLOCK_H
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