Am Dienstag, dem 22.11.2022 um 22:13 -0500 schrieb Richard Kimberly
Heck:
> Here's the program to check:
>
> #define _GLIBCXX_DEBUG 1
> #include <unordered_set>
>
> int main()
> {
> std::unordered_set<int>::iterator it{};
> it == it;
> }
>
> That's what was crashing in GCC.
Does not crash for me.
>
> I did notice, too, though in the Qt report that it says:
>
>
> In general, from the LyX bug report, it looks like they're building
> LyX
> but not Qt with debug iterators enabled.
>
> That is a bad idea. libstdc++ debug mode breaks ABI. I don't think we
> ever return any QMap in Qt across its library boundary, but if we
> did, they couldn't use it.
>
> If you want to turn on debug mode globally, you need to rebuild any
> 3rd
> party dependency with it. Of course there are the containers in the
> debug namespace, but I haven't found a good solution to use them at
> large in a project. I've tried to isolate them in a local namespace,
> but
> people won't use MyNS::vector (which is either std::vector or
> stddebug::vector), they'll just use std::vector.
>
>
> So, maybe the problem is very specific to --enable-stdlib-debug and
> has to do with the way we use external libraries.
I hope this is not the answer, and I don't need to compile qt myself in
order to use stdlib-debug.
Jürgen
>
> Riki
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