Re: TRUE
Abigail <[email protected]>
| Newsgroups | gmane.comp.lang.perl.fun |
|---|---|
| Message-ID | <[email protected]> |
On Wed, Jan 21, 2004 at 06:43:26PM +0200, Gaal Yahas wrote:
> On Wed, Jan 21, 2004 at 11:09:29AM -0500, Andrew Pimlott wrote:
> > I like to use symbolic constants. Wha can remember what all those
> > 1, 0, undef, and ''s mean anyway? So I start off all my programs
> > with
> >
> > use constant FALSE => !TRUE;
> > use constant TRUE => !FALSE;
>
> I start off all my programs with use strict :-)
>
> But more to the point, how do you use your TRUE and FALSE? Suppose you
> want to test the return value of this sub:
>
> sub returns_a_true_value { 8.2 }
>
> Would you do "if (returns_a_true_value() eq TRUE)"? "== TRUE"?
> Neither would work, and you can just do "if (returns_a_true_value())"
> directly anyway.
Not a problem for the Fun With Perl mailinglist, is it?
if (returns_a_true_value () xor FALSE) {
print "It returned true.\n";
}
Abigail