I know variants of the following bug have been discussed in the Monastery recently, but I didn't find this particular one. My apologies in advance if I missed it.
Spot the bug:
sub foo {
my $hashref = shift;
while ( my ( $key, $value ) = each %$hashref ) {
return if sometest( $key );
frobnicate( $key, $value );
}
}
BTW, there's nothing arcane about this bug. It's vanilla Perl, but it's easy to miss.
Update: The original title of this thread ("Buglet") was confusing, so, by popular demand, I changed it. I hope the new title is an improvement.
In reply to Spot the bug
by tlm
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