Return the smallest (non‐negative) index that has not been issued by this index clerk. Note that this function offers the client a "peek" at the next "new" index, but has no effect on the value of this index clerk.
Return the smallest (non‐negative) index that has not been issued by this index clerk. Note that this function offers the client a "peek" at the next "new" index, but has no effect on the value of this index clerk.