CoreLocationTest.m

//
// Using CoreLocation on Mac OS X with command-line
// $ clang CoreLocationTest.m -framework cocoa -framework CoreLocation
// $ ./a.out 
// location service enabled
// 2011-12-01 21:03:01.839 a.out[10214:903] latitude,logitude : 35.606647, 140.695538
// 2011-12-01 21:03:01.842 a.out[10214:903] timestamp         : 2011-12-01 21:01:36 +0900
// tmiz moo@tmiz.net
//
#import <cocoa/cocoa.h>
#import <CoreLocation/CoreLocation.h>

@interface NSObject(CB)
- (void)logLonLat:(CLLocation*)location;
- (void)locationManager:(CLLocationManager *)manager
    didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation;
- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error;
@end

@implementation NSObject(CB)
- (void)logLonLat:(CLLocation*)location
{
    CLLocationCoordinate2D coordinate = location.coordinate;
    NSLog(@"latitude,logitude : %f, %f", coordinate.latitude, coordinate.longitude);
    NSLog(@"timestamp         : %@", location.timestamp);
}

- (void)locationManager:(CLLocationManager *)manager
    didUpdateToLocation:(CLLocation *)newLocation fromLocation:(CLLocation *)oldLocation {
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
    [self logLonLat:newLocation];
    [pool drain];
}

- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error{
    NSLog(@"Error: %@", error);
}
@end

int main(int ac,char *av[])
{
    id obj = [[NSObject alloc] init];
    id lm = nil;
    if ([CLLocationManager locationServicesEnabled]) {
		printf("location service enabled\n");
		lm = [[CLLocationManager alloc] init];
		[lm setDelegate:obj];
		[lm startUpdatingLocation];
    }

    CFRunLoopRun();
    [lm release];
    [obj release];
    return 0;
}