System.Numerics.BigIntegerBuilder.MakeOdd C# (CSharp) Method

        public int MakeOdd() {
            int cbit = this.CbitLowZero();
            if (cbit > 0) {
                this.ShiftRight(cbit);
            }
            return cbit;
        }
#if (dotNET10 || dotNET11 || dotNETCF10 || dotNETCF20 || dotNETMF)

 public static void GCD(ref BigIntegerBuilder reg1, ref BigIntegerBuilder reg2)
 {
     if (((reg1._iuLast > 0) && (reg1._rgu[0] == 0)) || ((reg2._iuLast > 0) && (reg2._rgu[0] == 0)))
     {
         int num  = reg1.MakeOdd();
         int num2 = reg2.MakeOdd();
         LehmerGcd(ref reg1, ref reg2);
         int cbit = Math.Min(num, num2);
         if (cbit > 0)
         {
             reg1.ShiftLeft(cbit);
         }
     }
     else
     {
         LehmerGcd(ref reg1, ref reg2);
     }
 }