EXTRA_SPACE
q->alloc = solv_realloc2(q->alloc, off + q->count + n + EXTRA_SPACE, sizeof(Id));
q->left = n + EXTRA_SPACE;
q->alloc = solv_realloc2(q->alloc, off + q->count + n + EXTRA_SPACE, sizeof(Id));
q->left = n + EXTRA_SPACE;
t->alloc = t->elements = solv_malloc2(s->count + EXTRA_SPACE, sizeof(Id));
t->left = EXTRA_SPACE;
q->alloc = solv_malloc2(q->count + EXTRA_SPACE, sizeof(Id));
q->left = EXTRA_SPACE;
q->elements = q->alloc = solv_realloc2(q->alloc, q->count + EXTRA_SPACE, sizeof(Id));
q->left = EXTRA_SPACE;