boolstruct
static struct boolstruct *ibool; /* array of char information */
ibool = (struct boolstruct *) malloc((unsigned) numbools *
sizeof (struct boolstruct));
struct boolstruct *a;
struct boolstruct *b;
a = (struct boolstruct *)x;
b = (struct boolstruct *)y;
sizeof (struct boolstruct), boolcompare);