Re: undefined value as an ARRAY reference sometimes ok

Calling $list->[0] causes $list to autovivify. You can see this happening here:

#!perl

use strict;

my $list = undef;
print ref $list, "\n"; # should print only a blank line

my $item = $list->[0];
print ref $list, "\n"; # should print ARRAY
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Re^2: undefined value as an ARRAY reference sometimes ok by Anonymous Monk on Dec 13, 2011 at 23:52 UTC
Maybe I missed it, but the refs you gave didn't explain why this didn't autovivify: `my $item = get_no_list()->[0]; #no way` [download]	[reply] [d/l]
Re^3: undefined value as an ARRAY reference sometimes ok by chilledham (Friar) on Dec 13, 2011 at 23:57 UTC
Sorry for the lack of clarity in my first response. It's the attempt to dereference `$list` that causes the autovivification. In your last example, you are attempting to dereference your function call, not `$list`.	[reply] [d/l] [select]