| // -*- C++ -*- |
| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP___CHRONO_CONVERT_TO_TM_H |
| #define _LIBCPP___CHRONO_CONVERT_TO_TM_H |
| |
| #include <__chrono/day.h> |
| #include <__concepts/same_as.h> |
| #include <__config> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| #if _LIBCPP_STD_VER > 17 |
| |
| // Convert a chrono calendar time point to the given tm type, |
| // which must have the same properties as std::tm. |
| template <class _Tm, class _ChronoCalendarTimePoint> |
| _LIBCPP_HIDE_FROM_ABI _Tm __convert_to_tm(const _ChronoCalendarTimePoint& __value) { |
| _Tm __result = {}; |
| # ifdef __GLIBC__ |
| __result.tm_zone = "UTC"; |
| # endif |
| |
| if constexpr (same_as<_ChronoCalendarTimePoint, chrono::day>) |
| __result.tm_mday = static_cast<unsigned>(__value); |
| else |
| static_assert(sizeof(_ChronoCalendarTimePoint) == 0, "Add the missing type specialization"); |
| |
| return __result; |
| } |
| |
| #endif //if _LIBCPP_STD_VER > 17 |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___CHRONO_CONVERT_TO_TM_H |
