Question

The following will compile but if run it will crash.

-(void) testFunc : (NSString *)s{
    NSLog(@"%@", s);
}

What’s wrong with this code?

I call the function like this:

NSString *msg = @"This is a message";
[self performSelector:@selector(testFunc) withObject:msg afterDelay:0];
[msg release];

Answer 1

[self performSelector:@selector(testFunc) withObject:msg afterDelay:0];

Should be:

[self performSelector:@selector(testFunc:) withObject:msg afterDelay:0];