[fpc-pascal] Why does nested function get corrupted?
pascaldragon at googlemail.com
Sun Sep 11 11:26:00 CEST 2022
Hairy Pixels <genericptr at gmail.com> schrieb am Sa., 10. Sep. 2022, 03:21:
> > On Sep 9, 2022, at 4:48 PM, Sven Barth <pascaldragon at googlemail.com>
> > How about you simply report such corruptions as bugs? I can always close
> them as "not a bug" or duplicate if necessary.
> Well I thought the data may have been saved on the stack and thus lost
> when the function exits. What is the expected behavior for passing these
> outside of the calling scope?
Looking at your example again - I'm only on my phone currently - it's
indeed your fault because the state passed to a nested function variable
does *not* survive the stack frame it belongs to. That's where function
references shine, because there the state *does* survive.
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