I've found:

The documentation for the exists operator no longer says that autovivification behaviour "may be fixed in a future release". We've determined that we're not going to change the default behaviour. perl #127712

perl #127712

I understand that there are only two options:

(*) -- this is the default behaviour that creators of perl decided not to change

I hoped to find solution that doesn't autovifify when existence is checked, so I could just act like this if (exists $h{a}{b}{c}{d}) { ... } and not like this if (exists $h{a} && exists $h{a}{b} && exists $h{a}{b}{c} && exists $h{a}{b}{c}{d}) { ... }

My preferred default behaviour would be to return undef for $h{a}{b}{c}{d} and NOT create $h{a}, $h{a}{b}, $h{a}{b}{c}... This is not possible.

In reply to Re^5: 5.24 -> 5.28 -- what has changed in autovivification? by leszekdubiel
in thread 5.24 -> 5.28 -- what has changed in autovivification? by leszekdubiel

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