v1/__chrono/high_resolution_clock.h

0001 // -*- C++ -*-
0002 //===----------------------------------------------------------------------===//
0003 //
0004 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0005 // See https://llvm.org/LICENSE.txt for license information.
0006 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0007 //
0008 //===----------------------------------------------------------------------===//
0009
0010 #ifndef _LIBCPP___CHRONO_HIGH_RESOLUTION_CLOCK_H
0011 #define _LIBCPP___CHRONO_HIGH_RESOLUTION_CLOCK_H
0012
0013 #include <__chrono/steady_clock.h>
0014 #include <__chrono/system_clock.h>
0015 #include <__config>
0016
0017 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
0018 #  pragma GCC system_header
0019 #endif
0020
0021 _LIBCPP_BEGIN_NAMESPACE_STD
0022
0023 namespace chrono {
0024
0025 #if _LIBCPP_HAS_MONOTONIC_CLOCK
0026 typedef steady_clock high_resolution_clock;
0027 #else
0028 typedef system_clock high_resolution_clock;
0029 #endif
0030
0031 } // namespace chrono
0032
0033 _LIBCPP_END_NAMESPACE_STD
0034
0035 #endif // _LIBCPP___CHRONO_HIGH_RESOLUTION_CLOCK_H