libcxx/include/__chrono/calendar.h

   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-exception
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #ifndef _LIBCPP___CHRONO_CALENDAR_H
  11 #define _LIBCPP___CHRONO_CALENDAR_H
  12
  13 #include <__chrono/duration.h>
  14 #include <__chrono/time_point.h>
  15 #include <__config>
  16
  17 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
  18 #  pragma GCC system_header
  19 #endif
  20
  21 #if _LIBCPP_STD_VER >= 20
  22
  23 _LIBCPP_BEGIN_NAMESPACE_STD
  24
  25 namespace chrono {
  26
  27 struct local_t {};
  28 template <class _Duration>
  29 using local_time    = time_point<local_t, _Duration>;
  30 using local_seconds = local_time<seconds>;
  31 using local_days    = local_time<days>;
  32
  33 struct last_spec {
  34   explicit last_spec() = default;
  35 };
  36 inline constexpr last_spec last{};
  37
  38 } // namespace chrono
  39
  40 _LIBCPP_END_NAMESPACE_STD
  41
  42 #endif // _LIBCPP_STD_VER >= 20
  43
  44 #endif // _LIBCPP___CHRONO_CALENDAR_H