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// template<> struct zoned_traits<const time_zone*>;
18
19// static const time_zone* default_zone();
20
21#include <cassert>
22#include <chrono>
23#include <concepts>
24
25int main(int, char**) {
26 std::same_as<const std::chrono::time_zone*> decltype(auto) tz =
27 std::chrono::zoned_traits<const std::chrono::time_zone*>::default_zone();
28 assert(tz);
29
30 // The time zone "UTC" can be a link, this means tz->name() can be something
31 // differently. For example, "Etc/UTC". Instead validate whether same time
32 // zone is returned by comparing the addresses.
33 const std::chrono::time_zone* expected = std::chrono::locate_zone("UTC");
34 assert(tz == expected);
35
36 return 0;
37}
38

source code of libcxx/test/std/time/time.zone/time.zone.zonedtraits/const_time_zone_default_zone.pass.cpp