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* [Bug c/88737] RFE: Track ownership moves
[not found] <bug-88737-4@http.gcc.gnu.org/bugzilla/>
@ 2023-12-18 7:29 ` rguenth at gcc dot gnu.org
2023-12-18 7:45 ` uecker at gcc dot gnu.org
1 sibling, 0 replies; 2+ messages in thread
From: rguenth at gcc dot gnu.org @ 2023-12-18 7:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88737
--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
We do now have the analyzer and -Wuse-after-free. I don't think a rust-like
borrow checking feature will ever work or is sensible to implement in C. Use
rust if you need such a feature.
I'm also not sure a "weaker" form of borrow checking is actually useful.
That would leave "custom" alloc-free like attributes using the -Wuse-after-free
or the corresponding analyzer diagnostics without any other semantic
side-effects. Is that what you actually want?
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug c/88737] RFE: Track ownership moves
[not found] <bug-88737-4@http.gcc.gnu.org/bugzilla/>
2023-12-18 7:29 ` [Bug c/88737] RFE: Track ownership moves rguenth at gcc dot gnu.org
@ 2023-12-18 7:45 ` uecker at gcc dot gnu.org
1 sibling, 0 replies; 2+ messages in thread
From: uecker at gcc dot gnu.org @ 2023-12-18 7:45 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88737
--- Comment #10 from uecker at gcc dot gnu.org ---
I would say it is rather likely that C will get something like this at some
point.
BTW: Any use of the pointer value after free as in comment #2 is UB.
^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <bug-88737-4@http.gcc.gnu.org/bugzilla/>
2023-12-18 7:29 ` [Bug c/88737] RFE: Track ownership moves rguenth at gcc dot gnu.org
2023-12-18 7:45 ` uecker at gcc dot gnu.org
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