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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_STEADY_CLOCK_H11#define _LIBCPP___CXX03___CHRONO_STEADY_CLOCK_H12 13#include <__cxx03/__chrono/duration.h>14#include <__cxx03/__chrono/time_point.h>15#include <__cxx03/__config>16 17#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)18# pragma GCC system_header19#endif20 21_LIBCPP_BEGIN_NAMESPACE_STD22 23namespace chrono {24 25#ifndef _LIBCPP_HAS_NO_MONOTONIC_CLOCK26class _LIBCPP_EXPORTED_FROM_ABI steady_clock {27public:28 typedef nanoseconds duration;29 typedef duration::rep rep;30 typedef duration::period period;31 typedef chrono::time_point<steady_clock, duration> time_point;32 static const bool is_steady = true;33 34 static time_point now() _NOEXCEPT;35};36#endif37 38} // namespace chrono39 40_LIBCPP_END_NAMESPACE_STD41 42#endif // _LIBCPP___CXX03___CHRONO_STEADY_CLOCK_H43