QTimeSpan: interest?

[sabrog]

Thanks, André. I voted.

[janarve]

A timespan has some pitfalls:
If it uses walltime as the two reference points, you must handle cases where start time is actually after end time. This is because there system time can be updated from a time source (and might jump back in time). IIRC on cell phones this happens quite often, but it can also happen if your desktop system is connected to a NTP time source. It can also happen if you are not connected to a external time source, for instance due to DST changes.
This is also mentioned in the documentation for QTime::elapsed(), which is often used for the same purpose. (actually it says that the result is undefined)

[andre]

Thank you for your comment, but that case is handled. The proposed QTimeSpan handles negative time spans just fine.

[DerManu]

Voted and Watched.
So, after two years, are timespans still not added to Qt? What a shame!

[andre]

Note that that is also a due to Sean and me not pushing hard enough to get it in after the first attempt.

[utcenter]

Useful class - voted.

[JulienMaille]

voted too

[romanick]

It's very needed class!
+1

[Benito1979]

I need this class, seems to be very useful!!!

[Andrey Dyatlov]

Hello Andre,
I think QTimeSpan class is really a missing part of the Qt Project. Thanks for yours and Sean's efforts!
I have a question regarding the legality. Is it possible to use your sources in a commercial project (we use Qt with LGPL) as a part of a code-base (do not incorporate it to the Qt libs) before it becomes a part of Qt officially?
Thanks!

UPD: English has been slightly improved.

[andre]

I was planning to try and pick this project up again, against Qt 5 and aim for inclusion in 5.2 (finally). I have no objection to others using the code in the meantime, as long as that is in accordance with their usage of Qt.

[Lykurg]

Hi Andre,

What's the current state of QTimeSpan. I could not find any related in Gerrit.

Thanks.

[andre]

There has been no recent active development on it, unfortunately. Life got in the way... Note that the code that is there works just fine.

[Talkless]

Please update Qt bug report link to https://bugreports.qt.io/browse/QTBUG-16556