BTDATAOFF
lim = (pgsize - BTDATAOFF) / sizeof(indx_t);
pleaf *= t->bt_psize - BTDATAOFF;
pinternal *= t->bt_psize - BTDATAOFF;
pg->lower = BTDATAOFF;
t->bt_ovflsize = (t->bt_psize - BTDATAOFF) / b.minkeypage -
root->lower = BTDATAOFF;
plen = t->bt_psize - BTDATAOFF;
memmove(p, (char *)h + BTDATAOFF, nb);
plen = t->bt_psize - BTDATAOFF;
memmove((char *)h + BTDATAOFF, p, nb);
for (plen = t->bt_psize - BTDATAOFF;; sz -= plen) {
r->lower = BTDATAOFF;
r->lower = BTDATAOFF + sizeof(indx_t);
l->lower = BTDATAOFF;
l->lower = r->lower = BTDATAOFF;
h->lower = BTDATAOFF + 2 * sizeof(indx_t);
h->lower = BTDATAOFF + 2 * sizeof(indx_t);
full = t->bt_psize - BTDATAOFF;
#define NEXTINDEX(p) (((p)->lower - BTDATAOFF) / sizeof(indx_t))