Round() [5/8]

static double System.Math.Round ( double a )

inlinestatic

Definition at line 1120 of file Math.cs.

    {
        ulong num = BitConverter.DoubleToUInt64Bits(a);
        int num2 = double.ExtractExponentFromBits(num);
        if (num2 <= 1022)
        {
            if (num << 1 == 0L)
            {
                return a;
            }
            double x = ((num2 == 1022 && double.ExtractSignificandFromBits(num) != 0L) ? 1.0 : 0.0);
            return CopySign(x, a);
        }
        if (num2 >= 1075)
        {
            return a;
        }
        ulong num3 = (ulong)(1L << 1075 - num2);
        ulong num4 = num3 - 1;
        num += num3 >> 1;
        num = (((num & num4) != 0L) ? (num & ~num4) : (num & ~num3));
        return BitConverter.UInt64BitsToDouble(num);
    }

References System.Math.CopySign(), System.BitConverter.DoubleToUInt64Bits(), System.L, and System.BitConverter.UInt64BitsToDouble().