HASHFRACTION
#if (HASHFRACTION & (HASHFRACTION - 1)) == 0
if (p->hashfraction == HASHFRACTION)
(size_t)(frompc / (HASHFRACTION * sizeof(*p->froms)))];
p->hashfraction = HASHFRACTION;
p->hashfraction = HASHFRACTION;
p->fromssize = p->textsize / HASHFRACTION;
ht->ht_lim = HASHFRACTION(sz);
ht->ht_lim = HASHFRACTION(n);