laziness, impatience, and hubris | |
PerlMonks |
comment on |
( [id://3333]=superdoc: print w/replies, xml ) | Need Help?? |
> That's an overstatement. The only thing that can be impacted is a sub that tries to modify an alias and then gets passed a read-only value and where that situation isn't just declared a bug and gets fixed.
... > If no error is ever thrown, then nobody knows and nobody cares and there is nothing to fix. Wrong, as you can see from the code I posted, not only the sub is affected, but the intended side-effect (of altering the call-by-reference argument) is missing without warning. in continuation of Re^3: ref to read-only alias ... why? (not consistent)
> So, yes, exactly as I said, the worst possible case can be solved by adding a simple eval around the code that modifies the reference How is eval supposed to help here? > but is (badly) designed to also tolerate the failure in the case of read-only parameters. So in your opinion manipulating $_[0] is a bad design!?! Could you please post some code-examples to illustrate your point of view?
Cheers Rolf In reply to Re^8: ref to read-only alias ... why? (eval)
by LanX
|
|