Timing

To roughly measure the time necessary to do a certain action:

 #include <mach/mach.h>
 #include <mach/mach_time.h>

 uint64_t start = mach_absolute_time();
 // Do something
 uint64_t duration = mach_absolute_time() - start;
 NSLog(@"Time to do something: %d", duration);

Debugging

Some tips:

• When debugging with Xcode, always add a breakpoint on "all exceptions".
• Always enable Zombie Objects when you get EXC_BAD_ACCESS without a stack trace