Method pointer

source/core/StarBTreeDatabase.cpp:339–344

}

auto BTreeDatabase::IndexNode::pointer(size_t i) const -> BlockIndex {
  if (i == 0)
    return *beginPointer;
  else
    return pointers.at(i - 1).pointer;
}

void BTreeDatabase::IndexNode::updatePointer(size_t i, BlockIndex p) {
  if (i == 0)