private uint LoadCount()
{
// this is an incorrect binary search approach
// that will fail if any of the leaves are zero hashes
// we should read count from the corresponding contract
ulong left = GetMinNodeIndex(LeafRow);
ulong right = GetMaxNodeIndex(LeafRow);
ulong?topIndex = Binary.Search(left, right, ni => !ZeroHash.Equals(LoadValue(new Index(ni))));
if (!topIndex.HasValue)
{
return(0);
}
return(new Index(topIndex.Value).IndexAtRow + 1);
}
private bool Equals(SpecificTopic other) => _topic.Equals(other._topic);