/// <summary>
///
/// </summary>
/// <param name="d1"></param>
/// <param name="d2"></param>
/// <returns></returns>
public static double MaximumCommonMantissa(double d1, double d2)
{
if (d1 == 0.0 || d2 == 0.0)
return 0.0;
DoubleBits db1 = new DoubleBits(d1);
DoubleBits db2 = new DoubleBits(d2);
if (db1.Exponent != db2.Exponent)
return 0.0;
int maxCommon = db1.NumCommonMantissaBits(db2);
db1.ZeroLowerBits(64 - (12 + maxCommon));
return db1.Double;
}
/// <summary>
///
/// </summary>
/// <param name="d"></param>
/// <returns></returns>
public static double TruncateToPowerOfTwo(double d)
{
DoubleBits db = new DoubleBits(d);
db.ZeroLowerBits(52);
return db.Double;
}