37   int status = _putenv_s("TZ", zone.c_str());  in set_tz()
43   int status = setenv("TZ", zone.c_str(), 1);  in set_tz()
50   const std::chrono::time_zone* tz = std::chrono::get_tzdb().current_zone();  in test_zone()  local
51   assert(tz);  in test_zone()
52   assert(tz->name() == zone);  in test_zone()
57   const std::chrono::time_zone* tz = std::chrono::get_tzdb().current_zone();  in test_link()  local
58   assert(tz);  in test_link()
59   assert(tz->name() == zone);  in test_link()
63   const std::chrono::time_zone* tz = std::chrono::get_tzdb().current_zone();  in main()  local
65   assert(tz);  in main()
69   assert(tz == std::chrono::get_tzdb().current_zone());  in main()