public ReadC(RegionPointerBlockImpl <TCord> r) : base(r._filePath, FileMode.Open, FileAccess.Read, FileShare.Read)
 {
     this.r = r;
 }
 public WriteC(RegionPointerBlockImpl <TCord> r) : base(r._filePath, FileMode.Open, FileAccess.Write, FileShare.Write)
 {
     this.r = r;
 }