MERGEQ_DEFAULT_CAP
mqp->mq_items = mergeq_alloc(sizeof (void *) * MERGEQ_DEFAULT_CAP);
bzero(mqp->mq_items, sizeof (void *) * MERGEQ_DEFAULT_CAP);
MERGEQ_DEFAULT_CAP);
MERGEQ_DEFAULT_CAP);
MERGEQ_DEFAULT_CAP);
mqp->mq_cap = MERGEQ_DEFAULT_CAP;
if (SIZE_MAX - mqp->mq_cap < MERGEQ_DEFAULT_CAP)
ncap = mqp->mq_cap + MERGEQ_DEFAULT_CAP;