Print Class Hierarchy

PrintClassHierarchy.m

#import <objc/runtime.h>

void PrintClassHierarchy(Class cls) {
    printf("// Class Hierarchy of %s\n", class_getName(cls));
    Class superClass = cls;
    while (superClass) {
        printf("%s", class_getName(superClass));
        superClass = class_getSuperclass(superClass);
        if (superClass) {
            printf(" : ");
        }
    }
    printf("\n");
}