i noticed something about using array index -1 today, that seems odd. in the following code, using index -1 didnt function quite as i expected. 
my @blah;
print $blah[-1] . "\n";

$blah[-1] = "yes";
print $blah[-1] . "\n";

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Printing index -1 works fine, but trying to assign to index -1 results in the error:
Modification of non-creatable array value attempted, subscript -1 at ...

I would have thought that trying to assign to the -1 element in an uninitialized array would assign to element 0, but i guess not.

I dont necessarily call this a bug, just unexpected.

In reply to array index -1 oddity by shemp

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