#import void baz() {} struct MyClass { void bar() { baz(); // break here } }; @interface MyObject : NSObject {} - (void)foo; @end @implementation MyObject - (void)foo { MyClass c; c.bar(); // break here } @end int main (int argc, char const *argv[]) { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; id obj = [MyObject new]; [obj foo]; [pool release]; return 0; }