Re: OBJ-C question
Re: OBJ-C question
- Subject: Re: OBJ-C question
- From: "Mike R. Manzano" <email@hidden>
- Date: Fri, 16 Apr 2004 17:48:34 -0700
How messy. I think I will stick to formal protocols :)
Mike
On Apr 16, 2004, at 4:57 PM, Ondra Cada wrote:
Mike,
On 17.4.2004, at 1:22, Mike R. Manzano wrote:
If I have an informal protocol, and am sending a message conforming to
the protocol to an object of type id, is it normal to have warning
messages appear during builds?
No. Looks like you didn't give the informal protocol declaration to the
compiler, or there's some other trick (in XCode, it seems often old
versions of headers are used until you clean, sigh!).
Anyway:
10 /tmp> <q.m
#import <Foundation/Foundation.h>
@interface NSString (InformalProtocol)
-(void)fooBar;
@end
void func() {
id o=nil;
[o fooBar];
}
11 /tmp> cc -c -Wall q.m
12 /tmp>
---
Ondra Hada
OCSoftware: email@hidden http://www.ocs.cz
private email@hidden http://www.ocs.cz/oc
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