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1// -*- C++ -*-2//===----------------------------------------------------------------------===//3//4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.5// See https://llvm.org/LICENSE.txt for license information.6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7//8//===----------------------------------------------------------------------===//9 10#ifndef _LIBCPP___CXX03___CHRONO_SYSTEM_CLOCK_H11#define _LIBCPP___CXX03___CHRONO_SYSTEM_CLOCK_H12 13#include <__cxx03/__chrono/duration.h>14#include <__cxx03/__chrono/time_point.h>15#include <__cxx03/__config>16#include <__cxx03/ctime>17 18#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)19# pragma GCC system_header20#endif21 22_LIBCPP_BEGIN_NAMESPACE_STD23 24namespace chrono {25 26class _LIBCPP_EXPORTED_FROM_ABI system_clock {27public:28 typedef microseconds duration;29 typedef duration::rep rep;30 typedef duration::period period;31 typedef chrono::time_point<system_clock> time_point;32 static const bool is_steady = false;33 34 static time_point now() _NOEXCEPT;35 static time_t to_time_t(const time_point& __t) _NOEXCEPT;36 static time_point from_time_t(time_t __t) _NOEXCEPT;37};38 39} // namespace chrono40 41_LIBCPP_END_NAMESPACE_STD42 43#endif // _LIBCPP___CXX03___CHRONO_SYSTEM_CLOCK_H44