1*5f757f3fSDimitry Andric // -*- C++ -*- 2*5f757f3fSDimitry Andric //===----------------------------------------------------------------------===// 3*5f757f3fSDimitry Andric // 4*5f757f3fSDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5*5f757f3fSDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 6*5f757f3fSDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7*5f757f3fSDimitry Andric // 8*5f757f3fSDimitry Andric //===----------------------------------------------------------------------===// 9*5f757f3fSDimitry Andric 10*5f757f3fSDimitry Andric // For information see https://libcxx.llvm.org/DesignDocs/TimeZone.html 11*5f757f3fSDimitry Andric 12*5f757f3fSDimitry Andric #ifndef _LIBCPP___CHRONO_TZDB_LIST_H 13*5f757f3fSDimitry Andric #define _LIBCPP___CHRONO_TZDB_LIST_H 14*5f757f3fSDimitry Andric 15*5f757f3fSDimitry Andric #include <version> 16*5f757f3fSDimitry Andric // Enable the contents of the header only when libc++ was built with experimental features enabled. 17*5f757f3fSDimitry Andric #if !defined(_LIBCPP_HAS_NO_INCOMPLETE_TZDB) 18*5f757f3fSDimitry Andric 19*5f757f3fSDimitry Andric # include <__availability> 20*5f757f3fSDimitry Andric # include <__chrono/tzdb.h> 21*5f757f3fSDimitry Andric # include <forward_list> 22*5f757f3fSDimitry Andric # include <string_view> 23*5f757f3fSDimitry Andric 24*5f757f3fSDimitry Andric # if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 25*5f757f3fSDimitry Andric # pragma GCC system_header 26*5f757f3fSDimitry Andric # endif 27*5f757f3fSDimitry Andric 28*5f757f3fSDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 29*5f757f3fSDimitry Andric 30*5f757f3fSDimitry Andric # if _LIBCPP_STD_VER >= 20 && !defined(_LIBCPP_HAS_NO_TIME_ZONE_DATABASE) && !defined(_LIBCPP_HAS_NO_FILESYSTEM) && \ 31*5f757f3fSDimitry Andric !defined(_LIBCPP_HAS_NO_LOCALIZATION) 32*5f757f3fSDimitry Andric 33*5f757f3fSDimitry Andric namespace chrono { 34*5f757f3fSDimitry Andric 35*5f757f3fSDimitry Andric class _LIBCPP_AVAILABILITY_TZDB tzdb_list { 36*5f757f3fSDimitry Andric public: 37*5f757f3fSDimitry Andric _LIBCPP_EXPORTED_FROM_ABI explicit tzdb_list(tzdb&& __tzdb); 38*5f757f3fSDimitry Andric _LIBCPP_EXPORTED_FROM_ABI ~tzdb_list(); 39*5f757f3fSDimitry Andric 40*5f757f3fSDimitry Andric tzdb_list(const tzdb_list&) = delete; 41*5f757f3fSDimitry Andric tzdb_list& operator=(const tzdb_list&) = delete; 42*5f757f3fSDimitry Andric 43*5f757f3fSDimitry Andric using const_iterator = forward_list<tzdb>::const_iterator; 44*5f757f3fSDimitry Andric 45*5f757f3fSDimitry Andric _LIBCPP_NODISCARD_EXT _LIBCPP_EXPORTED_FROM_ABI const tzdb& front() const noexcept; 46*5f757f3fSDimitry Andric 47*5f757f3fSDimitry Andric _LIBCPP_EXPORTED_FROM_ABI const_iterator erase_after(const_iterator __p); 48*5f757f3fSDimitry Andric 49*5f757f3fSDimitry Andric _LIBCPP_EXPORTED_FROM_ABI tzdb& __emplace_front(tzdb&& __tzdb); 50*5f757f3fSDimitry Andric 51*5f757f3fSDimitry Andric _LIBCPP_NODISCARD_EXT _LIBCPP_EXPORTED_FROM_ABI const_iterator begin() const noexcept; 52*5f757f3fSDimitry Andric _LIBCPP_NODISCARD_EXT _LIBCPP_EXPORTED_FROM_ABI const_iterator end() const noexcept; 53*5f757f3fSDimitry Andric 54*5f757f3fSDimitry Andric _LIBCPP_NODISCARD_EXT _LIBCPP_EXPORTED_FROM_ABI const_iterator cbegin() const noexcept; 55*5f757f3fSDimitry Andric _LIBCPP_NODISCARD_EXT _LIBCPP_EXPORTED_FROM_ABI const_iterator cend() const noexcept; 56*5f757f3fSDimitry Andric 57*5f757f3fSDimitry Andric private: 58*5f757f3fSDimitry Andric class __impl; 59*5f757f3fSDimitry Andric __impl* __impl_; 60*5f757f3fSDimitry Andric }; 61*5f757f3fSDimitry Andric 62*5f757f3fSDimitry Andric _LIBCPP_NODISCARD_EXT _LIBCPP_AVAILABILITY_TZDB _LIBCPP_EXPORTED_FROM_ABI tzdb_list& get_tzdb_list(); 63*5f757f3fSDimitry Andric get_tzdb()64*5f757f3fSDimitry Andric_LIBCPP_NODISCARD_EXT _LIBCPP_AVAILABILITY_TZDB _LIBCPP_HIDE_FROM_ABI inline const tzdb& get_tzdb() { 65*5f757f3fSDimitry Andric return get_tzdb_list().front(); 66*5f757f3fSDimitry Andric } 67*5f757f3fSDimitry Andric 68*5f757f3fSDimitry Andric _LIBCPP_AVAILABILITY_TZDB _LIBCPP_EXPORTED_FROM_ABI const tzdb& reload_tzdb(); 69*5f757f3fSDimitry Andric 70*5f757f3fSDimitry Andric _LIBCPP_NODISCARD_EXT _LIBCPP_AVAILABILITY_TZDB _LIBCPP_EXPORTED_FROM_ABI string remote_version(); 71*5f757f3fSDimitry Andric 72*5f757f3fSDimitry Andric } // namespace chrono 73*5f757f3fSDimitry Andric 74*5f757f3fSDimitry Andric # endif // _LIBCPP_STD_VER >= 20 && !defined(_LIBCPP_HAS_NO_TIME_ZONE_DATABASE) && !defined(_LIBCPP_HAS_NO_FILESYSTEM) 75*5f757f3fSDimitry Andric // && !defined(_LIBCPP_HAS_NO_LOCALIZATION) 76*5f757f3fSDimitry Andric 77*5f757f3fSDimitry Andric _LIBCPP_END_NAMESPACE_STD 78*5f757f3fSDimitry Andric 79*5f757f3fSDimitry Andric #endif // !defined(_LIBCPP_HAS_NO_INCOMPLETE_TZDB) 80*5f757f3fSDimitry Andric 81*5f757f3fSDimitry Andric #endif // _LIBCPP___CHRONO_TZDB_LIST_H 82