What if get two paired variables, and want to check that both are initialized, or both are empty or null strings?

I don't necessarily want it to act like anything (0 or empty string) -- I just want it to compare as "not equal" to something that is defined, or "equal" to something that isn't -- with the caveat, that undef == undef, is only equal in a certain context -- i.e. they are both uninitialized.

I would want it to compare different if I compared undef against 0 or the empty string, so assigning either of those other values would miss the point entirely.

In reply to Re^2: Do people find warning for undef with string compare useful? by perl-diddler
in thread Do people find warning for undef with string compare useful? by perl-diddler

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