Getting action on your favorite D issues
Joseph Rushton Wakeling
joseph.wakeling at webdrake.net
Sat Jun 6 22:07:52 UTC 2020
On Saturday, 6 June 2020 at 22:01:51 UTC, Steven Schveighoffer
wrote:
> Yes, it's the same thing. This is why I specifically said that
> the case of:
>
> int x = void;
>
> won't corrupt memory *as long as everything that uses it is
> @safe*. This is due to the fact that all indexing operations in
> @safe code are bounds-checked.
Ahh, gotcha. I didn't quite follow the nuances there before.
Thanks for clarifying, and for all the previous explanation.
> The thing we *should* do is just disallow all these corner
> cases in @safe code. It's much easier to relax it in certain
> cases later than it is to add on band-aids for all the bad
> cases.
>
> I don't think the code breakage would be tolerable for many
> people. Then again, maybe void initialization isn't common
> enough to cause a lot of breakage, I don't know. But I'm sure
> union usage is higher.
Could be interesting to put together compiler options to ban one
or the other, and test them on a few major codebases (starting
with druntime and phobos) to see how much breaks. If nothing
else it'd be useful information to consider for that D3 proposal
... :-)
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