The autoincremenet operator is "magical", see perlman:perlop for more details. Try adding the following code to your test program to see the magic at work: 
$m="acb";
print ++$m; # Prints acc, as expected (according to perlop)
# and throws no warning ... wierd huh?

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In reply to Re: Increment avoids warning unexpectedly by MonkE
in thread Increment avoids warning unexpectedly by jesuashok

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