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Re: Re: Re: Can you guess the result? Is it a bug?

by dga (Hermit)
on Jul 31, 2003 at 22:06 UTC ( #279809=note: print w/replies, xml ) Need Help??


in reply to Re: Re: Can you guess the result? Is it a bug?
in thread Can you guess the result? Is it a bug?

The warning is just trying to help you out so that you don't have an if that evaluates to a constant boolean value which these all do. Consider:

... if($val == 3); #versus ... if($val = 3);

In the first is checks to see if $val is 3 and in the second it sets $val to be 3 and then checks $val for truth which in this case is always true. So for normal situations that line should just be:

...; $val=3;

Which would have the same effect in my little sample program.

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