[Octave-bug-tracker] [bug #63416] Messages from building with -fsanitize=undefined

[John W. Eaton]

Follow-up Comment #6, bug #63416 (project octave):

"What was the reason for the message and for the fix?"

Data members are constructed in the order they appear in the class declaration
and destroyed in the reverse order.  The problem was happening because the
output system was using the evaluator after the evaluator was destroyed.  I
would guess that most of the time this error was unlikely to cause a crash
because the memory used by the evaluator wasn't reused or overwritten by
something else between the time the evaluator destructor was called and the
last time it was used.  But we shouldn't rely on that.  Reordering the objects
eliminated that problem.

I'll check in a proper changeset soon.


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