Random Objective-C Class Returning Function

Random Class.m

#import <objc/runtime.h>
 
Class randomClass(){
        int numClasses = objc_getClassList(NULL, 0);
        Class *classes = calloc(sizeof(Class), numClasses);
        objc_getClassList(classes, numClasses);
        Class randomClass = *(classes + arc4random_uniform(numClasses));
        free(classes);
        return randomClass;
}
 
id randomInstance(){
        return [[randomClass() alloc]init];
}