Hi Monks,

This tiny code fails with "Can't use an undefined value as an ARRAY reference" exception. 

use strict;
use warnings;
use diagnostics;

my $href = {
    list => undef,
};

my @a = @{$href->{list}}; # fails here
foreach my $i (@a) {
    print "$i\n";
}

[download]
but this one works as expected (does nothing) 
use strict;
use warnings;
use diagnostics;

my $href = {
    list => undef,
};

foreach my $i (@{$href->{list}}) {
    print "$i\n";
}

[download]
Could you explain me what makes the difference here? Thanks.

My perl is 5.18.2.

In reply to Array dereference in foreach() by pme

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