[Development] New property system

[Fabian Kosmale]

Hi Robert,

with gcc's UBSAN there are no reported issues when running tst_qproperty. This doesn't come as a surprise, considering that we do obtain a pointer whose value corresponds with that of a valid pointer to the object. I guess technically we still might need to std::launder it, but I leave determining that detail to Ville, and it shouldn't matter in practice anwyay.

Regards,
Fabian

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Fabian Kosmale
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________________________________________
Von: Development <development-bounces at qt-project.org> im Auftrag von Robert Löhning <robert.loehning at qt.io>
Gesendet: Donnerstag, 1. Oktober 2020 21:15
An: development at qt-project.org
Betreff: Re: [Development] New property system

Am 26.08.20 um 09:18 schrieb Lars Knoll:
> (...)
> This is the one place where we rely on a non standard (but supported by all our compilers) feature. Namely the ability to call offsetof() on non-standard types.

Hi Lars,

how will undefined behavior sanitizers (UBSAN) react to this?

Cheers,
Robert
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