i agree. the part that make people confuse is that most people think $| is a variable holding a number. that's not necessary the case. Perl could have(easily) implmented $| to be a bit(save memory and faster access and manipulation etc) position of a number. many c functions does that.
when you assign something to it, it merely sets this bit to 0 or 1 but not actually assigne any value to it. just some thought... david Nikola Janceski wrote: > It's not a bug as I see it. You gurus must have told the compiler that $| > can only hold a 0 or 1 for whatever reason; > > Just because something isn't documented, doesn't make it a bug. > > But even in the docs it tells you, > "The following names have special meaning to Perl." > Translation: "Don't do crap with it, unless it's for it's special > purpose." > > >> -----Original Message----- >> From: John W. Krahn [mailto:[EMAIL PROTECTED]] >> Sent: Tuesday, August 20, 2002 5:22 PM >> To: [EMAIL PROTECTED] >> Subject: Re: newbie question >> >> >> Kevin Meltzer wrote: >> > >> > I'm curious as to why. When I mentioned it on channel, a few people >> > didn't see it as a bug either, at first. Being that it is >> using -- in a >> > way which isn't consistent with -- (it increments as opposed to >> > decrement). In fact, it isn't just with --/++ but + and - will yield >> > the same results. Anyways, just curious why you think that >> subtracting >> > from 0 yields a 1 doesn't seem like a bug (and when adding 1 never >> > yields a 0). >> >> Well, because Perl has lots of special cases like this. Most people >> don't ever use $| let alone the special properties of $|--. >> The average >> programmer just needs to know that setting $| to 1 turns on autoflush >> and setting $| to 0 turns off autoflush. What about the fact that ++ >> will increment a string but -- will not decrement it? >> > > ---------------------------------------------------------------------------- > -------------------- > The views and opinions expressed in this email message are the sender's > own, and do not necessarily represent the views and opinions of Summit > Systems Inc. -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
