path: root/examples/qtestlib/tutorial5
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authorEdward Welbourne <>2020-08-28 15:32:09 +0200
committerQt Cherry-pick Bot <>2020-09-28 15:55:47 +0000
commit87b07a60da183a60a7e7c79e5daa3ab69a03b4c3 (patch)
treeebff3c9cde2ed1cfcec5488afabbec13772670a9 /examples/qtestlib/tutorial5
parent4d3939650dda199807f4707574ed39d871e340d8 (diff)
Don't guess UTC when we can't find a system zone name
If we're able to load a system zone without knowing its name, we shouldn't claim that its name is UTC. Instead, use the system zone information's name for the zone. Let the backend return an empty string if it can't determine the system zone ID, provided it has some way to get system zone info despite not knowing its name. This can happen on Windows if the system zone is one of Microsoft's idiosyncratic names that we don't recognize; or on Linux if /etc/timezone is a copy of a zoneinfo file, instead of a symlink. In support of that, handle empty ID as a request for system zone info, so that the backend constructors taking an IANA ID never get passed an empty ID; that gets routed to the default constructor instead. This incidentally restores QTzTimeZonePrivate's behavior, for empty ID, of reading the content of /etc/timezone if we are unable to determine the name of its zone any other way. Fixes: QTBUG-86306 Change-Id: Iad57c18199124f651ebc3d32c3deffca6eaab512 Reviewed-by: MÃ¥rten Nordheim <> (cherry picked from commit b12d6c6a8ab5f7b01bdd2cb862a66a409700faa1) Reviewed-by: Qt Cherry-pick Bot <>
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