Re: #define and if statements
Re: #define and if statements
- Subject: Re: #define and if statements
- From: Dave DeLong <email@hidden>
- Date: Fri, 26 Feb 2010 23:24:59 -0700
#define's are basically a simple find and replace, so if you do:
#define IsDemo NO;
and then do:
if (IsDemo) { ... }
It's going to become:
if (NO;) { ... }
See the problem? You've got a semicolon in there. Generally, you don't end a #define with a semicolon unless you want a semicolon in the place where the #define will be used.
Dave
On Feb 26, 2010, at 11:22 PM, Adam Gerson wrote:
> I have the following constant set up. I have tried all three of these
> variations and none of them work in an if statement in cocoa. I get
> error: expected `)' before ';' token
>
> #define IsDemo NO;
> #define IsDemo false;
> #define IsDemo 0;
>
>
> if (IsDemo) {
> bla...
> }
>
> Same problem, when I try:
> #define FreeUpdateDaysAllowed 180;
> if (daysSoFar > FreeUpdateDaysAllowed)
>
>
> What am I doing wrong? Whats the right way to have a bool or int constant?
>
> Thanks,
> Adam
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