def = (definition *) FINDVAL(defined, type, typedefed);
def = findval(defined, type, typedefed);
isvectordef(type, rel)	char *type;	relation rel;{	definition *def;	for (;;) {		switch (rel) {		case REL_VECTOR:			return (!streq(type, "string"));		case REL_ARRAY:			return (0);		case REL_POINTER:			return (0);		case REL_ALIAS:			def = (definition *) FINDVAL(defined, type, typedefed);			if (def == NULL) {				return (0);			}			type = def->def.ty.old_type;			rel = def->def.ty.rel;		}	}}