PAIRSIZE
if (ISBIG(PAIRSIZE(key, val), hashp) && BIGPAIRFITS(pagep))
if ((ISBIG(PAIRSIZE(key, val), hashp) &&
(!ISBIG(PAIRSIZE(key, val), hashp) &&
if ((ISBIG(PAIRSIZE(key, val), hashp) &&
(!ISBIG(PAIRSIZE(key, val), hashp) &&
if (ISBIG(PAIRSIZE(key, val), hashp)) {
if (!ISBIG(PAIRSIZE(key, val), hashp))
#define PAIRFITS(P,K,D) ((PAIRSIZE((K),(D))) <= FREESPACE((P)))
FREESPACE(bp) >= PAIRSIZE(key, val)) {
FREESPACE(sp) = free_space - PAIRSIZE(key, val);
(PAIRSIZE((K),(D)) + OVFLSIZE) <= FREESPACE((P)))