class L {
    string m ;
    int n ;
    float o ;
}

void runit()
{
    class L l = new(class L) ;
    int x = 3 ;

    printf("l: %O\n", l) ;
    printf("nullp(l->m): %O\n", nullp(l->m)) ;
    printf("undefinedp(l->n): %O\n", undefinedp(l->n)) ;
    printf("typeof(l->o): %O\n", typeof(l->o)) ;

    while(x--)
    {
        printf("%O",
            sprintf("MEMBER #: %O\n", x) +
            sprintf(sprintf("VALUE: %O\n", fetch_class_member(l, x))) +
            sprintf(sprintf("TYPEOF: %O\n", typeof(fetch_class_member(l, x)))) +
            sprintf(sprintf("NULLP: %O\n", nullp(fetch_class_member(l, x)))) +
            sprintf(sprintf("UNDEFINEDP: %O\n", undefinedp(fetch_class_member(l, x))))
        ) ;
    }
}