Need a good list of every UIView subclass use class lister?

Class Lister

extern "C" {
 int objc_getClassList(Class*, int);
 Class class_getSuperclass(Class cls);
 const char * class_getName(Class cls);
}

- (void)viewDidLoad {
 int numClasses = objc_getClassList(NULL, 0);
 Class *classes = NULL;
 
 classes = (Class*)malloc(sizeof(Class) * numClasses);
 numClasses = objc_getClassList(classes, numClasses);
 
 for(int i = 0; i < numClasses; i++) {
  
  Class cls = classes[i];
  
  for(Class c = cls; c = class_getSuperclass(c);) {
   
   if(!strcmp(class_getName(c), "UIView")) {
    
    cout << class_getName(cls) << endl;
    break;
   }
  }
 }
 
 free(classes);
}