Here is the code (pertinent snippets)
@interface BlueSLRGPS ()
@property (copy) CLHeading* currentHeading;
@property (copy) CLLocation* currentLocation;
@property (retain) CLLocation* previousLocation;
- (NSString*)compassPointForHeading:(double)heading;
- (void)locationManager:(CLLocationManager*)manager
didUpdateHeading:(CLHeading*)newHeading;
- (void)locationManager:(CLLocationManager*)manager
didUpdateToLocation:(CLLocation*)newLocation
fromLocation:(CLLocation*)oldLocation;
- (void)locationManager:(CLLocationManager*)manager
didFailWithError:(NSError*)error;
@end
@synthesize currentHeading;
- (void)locationManager:(CLLocationManager*)manager
didUpdateHeading:(CLHeading*)newHeading
{
MCLog(@"heading update isMainThread = %d", [NSThread isMainThread]);
MCLog(@"Heading: %f", newHeading.magneticHeading);
self.currentHeading = newHeading;
[self.delegate headingUpdated];
}
Here is the result.
(gdb) p newHeading
$1 = (CLHeading *) 0x481ef50
(gdb) p currentHeading
$2 = (CLHeading *) 0x3c193c0
(gdb) po (CLHeading*)0x481ef50
magneticHeading 211.00 trueHeading 205.17 accuracy 35.00 x 2.625 y -6.875 z
-18.250 @ 2010-02-11 11:18:29 AM
(gdb) po (CLHeading*)0x3c193c0
magneticHeading 0.00 trueHeading 0.00 accuracy 0.00 x 0.000 y 0.000 z 0.000 @
(null)
I didn't see anything in the docs about CLHeading objects not being copyable.
Any ideas as to why the copy did not duplicate the current values?
-Michael
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