Question

Possible Duplicate:
error: writable atomic property cannot pair a synthesized setter/getter with a user defined setter/getter

I am getting the following warning: Writable atomic property ‘result’ cannot pair a synthesized setter/getter with a user defined setter/getter

This is how I setter/getter it:

@property (retain, getter=getResult) NSString *result;
@synthesize result;

I get the warning in the bolded/italicized line below:

***- (NSString *)getResult***
{
    if (result == nil)
        self.result = [[[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding] autorelease];
    return result;
}

Any ideas on how to fix it?

Thanks!

Answer 1

Synthesizing an atomic property generates a getter and setter which use a lock to ensure that the value is always fully retrieved or set in a multithreaded environment.

Either change your property declaration to:

@property (nonatomic, retain) NSString *result;

Or define both accessors yourself and implement your own locking mechanism to guarantee atomicity.