Path: utzoo!attcan!uunet!garfield!john13
From: john13@garfield.MUN.EDU (John Russell)
Newsgroups: comp.lang.c
Subject: Re: Whitespace is your friend
Summary: parentheses can be your best buddy
Message-ID: <5050@garfield.MUN.EDU>
Date: 23 Dec 88 18:28:29 GMT
References: <9076@smoke.brl.mil> <14020049@hpisod2.hp.com> <212@unix386.convergent.com> <2151@uokmax.uucp> <2155@uokmax.uucp> <eWLqt#1p2JEa=eric@snark.UUCP> <785@auspex.UUCP>
Reply-To: john13@garfield.UUCP (John Russell)
Organization: Memorial University of Newfoundland
Lines: 21

In article <785@auspex.UUCP> guy@auspex.UUCP (Guy Harris) writes:
> >			card=NOVALUE;
> >#define NOVALUE	-1
>
>Nevertheless, White Space is Still Your Friend, since if you put the
>white space in compilers that still honor the old syntax will do the
>right thing as well.

Negative define values are also a good place to use parentheses. There
is more than one way for the compiler to choke on an unparenthesized number.

eg. #define NOVALUE (-1)
    card2 = card1-NOVALUE

Either whitespace are brackets will allow it to parse correctly in this case.

John
-- 
"If you steal all money, kids not be able to BUY TOYS!"
			-- Saturday morning cartoon character explaining
			   why theft is bad