NPS
ASSERT((size + WORDSIZE) * NPS >= MINSIZE);
if ((List[i] = _malloc_unlocked((size + WORDSIZE) * NPS)) == 0)
for (n = 0, np = List[i]; n < NPS; ++n) {
ASSERT((size + WORDSIZE) * NPS >= MINSIZE);
if ((np = malloc_unlocked((size + WORDSIZE)*NPS)) == NULL)
for (n = 0, List[i] = np; n < NPS; ++n) {
if (n == NPS - 1) {