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Re: Re: Re: Re: cgi buffer flush

by dvergin (Monsignor)
on Mar 09, 2002 at 20:49 UTC ( #150609=note: print w/replies, xml ) Need Help??


in reply to Re: Re: Re: cgi buffer flush
in thread cgi buffer flush

      If for some reason $| = -1,...

No. Please don't make assertions like that when you haven't tested them.

$| is magic. It always equals either zero or one. Nothing else. Behold:

print "$|\n"; # 0 $| = -1; print "$|\n"; # 1 $|++; print "$|\n"; # 1 $|++; print "$|\n"; # 1 $|--; print "$|\n"; # 0 $|--; print "$|\n"; # 1 $|--; print "$|\n"; # 0
As you can see, $|++ always sets $| to one (no matter what it was) and $|-- always toggles it.

I agree that $| = 1; is more clear to newer programmers. But rationalle for that usage has to do with the learning curve and not with the behavior of $|.

------------------------------------------------------------
"Perl is a mess and that's good because the
problem space is also a mess.
" - Larry Wall

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