Gurus,
I'm not really a newbie, I have a few years of Perling, but this one's got
me stumped. I remember that "&&" is supposed to short circuit (skip B
completely in "A && B" if A is false), but in my code it won't. So what's
the deal?
<code>
($x eq 'T') && next if value_in_list( $u, @listA );
($x eq 'A') && next if value_in_list( $u, @listB );
($x eq 'B') && next if value_in_list( $u, @listC );
</code>
where value_in_list() is a sub that returns TRUE if $u is found in the
list it gets passed, and FALSE otherwise.
I've tried replacing the "eq 'X'" with "=~/X/" and that doesn't help. I
even tried replacing the "&&" with "and". No joy. I still get the sub
entered for each possible value of $x unless the sub returns TRUE on a
previous test. That is, if $x is 'B', the sub gets entered for all three
possibilities, T, A, and B. I think this shouldn't be happening, but it
is (well, was, now I'm using a really ugly if-elsif-elsif). Any hints as
to why my && ain't workin' like it oughta?
TIA,
Deane Rothenmaier
Systems Architect
Walgreens Corp.
847-914-5150
"On two occasions I have been asked [by members of Parliament], 'Pray, Mr.
Babbage, if you put into the machine wrong figures, will the right answers
come out?' I am not able rightly to apprehend the kind of confusion of
ideas that could provoke such a question." -- Charles Babbage
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