1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // UNSUPPORTED: c++03, c++11, c++14, c++17
10 // UNSUPPORTED: no-filesystem, no-localization, no-tzdb
11
12 // XFAIL: libcpp-has-no-experimental-tzdb
13 // XFAIL: availability-tzdb-missing
14
15 // <chrono>
16
17 // Note there is no Standard way to change the remote database used.
18 // That is tested in
19 // test/libcxx/time/time.zone/time.zone.db/time.zone.db.remote/reload_tzdb.pass.cpp
20
21 // const tzdb& reload_tzdb();
22
23 #include <cassert>
24 #include <chrono>
25 #include <iterator>
26
27 #include "test_macros.h"
28
main(int,const char **)29 int main(int, const char**) {
30 const std::chrono::tzdb_list& list = std::chrono::get_tzdb_list();
31 std::string version = list.front().version;
32 assert(!version.empty());
33
34 assert(std::distance(list.begin(), list.end()) == 1);
35 assert(std::distance(list.cbegin(), list.cend()) == 1);
36 assert(std::chrono::remote_version() == version);
37
38 std::chrono::reload_tzdb();
39
40 assert(std::distance(list.begin(), list.end()) == 1);
41 assert(std::distance(list.cbegin(), list.cend()) == 1);
42 assert(std::chrono::remote_version() == version);
43
44 return 0;
45 }
46