If you're looking to exclude specific values (not necessarily contiguous), then here is another way to solve your problem:

if (scalar grep { $expire ne $_ } @values)  { die "Don't tamper with m
+e!"; }

[download]

Where @values is filled with the values you want to check for.  Also, if you are doing only numbers you can change the ne test to a != test.

Update:  Added italics to "another" to emphasize TMTOWTDI.  For further insight into TMTOWTDI (and why algorithms, unlike men, are not all created equal), might I suggest reading the chain of replies resulting from this post.

In reply to Re: IF Statement Testing by northwind
in thread IF Statement Testing by Anonymous Monk

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