void *malloc(unsigned long);
void free(void *);

struct comment {
  int *p;
};

struct table {
  struct comment *p;
};

void delete_table(struct table *t)
{
    free(t->p->p);
    free(t->p);
    free(t);
}

void f()
{
    struct table *t = (struct table *)malloc(sizeof(struct table));
    struct comment *comment_rec = (struct comment *)malloc(sizeof(struct comment));
    t->p = comment_rec;
    delete_table(t);
}