Method NextIndex

Bcore/src/main/cpp/base/hash_set.h:547–553

  }

  size_t NextIndex(size_t index) const {
    if (UNLIKELY(++index >= num_buckets_)) {
      DCHECK_EQ(index, NumBuckets());
      return 0;
    }
    return index;
  }

  // Find the hash table slot for an element, or return NumBuckets() if not found.
  // This value for not found is important so that iterator(this, FindIndex(...)) == end().