public override int GetHashCode()
{
return
(Top.GetHashCode() ^ PGUtil.RotateShift(Right.GetHashCode(), sizeof(int) / 4) ^
PGUtil.RotateShift(Bottom.GetHashCode(), sizeof(int) / 2) ^
PGUtil.RotateShift(LowerLeft.GetHashCode(), sizeof(int) * 3 / 4));
}
public override int GetHashCode()
{
unchecked
{
return((LowerLeft.GetHashCode() * 397) ^ UpperRight.GetHashCode());
}
}
