if (hp->pointBuffer[erase] == NULL) {
if ((hp->pointBuffer[erase] = (XPoint *) malloc(MI_COUNT(mi) *
sizeof (XPoint))) == NULL) {
if (hp->pointBuffer[erase] == NULL) {
if ((hp->pointBuffer[erase] = (XPoint *) malloc(MI_COUNT(mi) *
sizeof (XPoint))) == NULL) {