public void RightRoundBlockShiftTest()
{
Random random = new Random(1234);
UInt32[] mantissa = UIntUtil.Random(random, BigUInt <Pow2.N32> .Length, BigUInt <Pow2.N32> .Bits);
BigUInt <Pow2.N32> v = new BigUInt <Pow2.N32>(mantissa, enable_clone: false);
BigInteger bi = v;
for (int sft = 0; sft <= BigUInt <Pow2.N32> .Length + 4; sft++)
{
BigUInt <Pow2.N32> v_sft = BigUInt <Pow2.N32> .RightRoundBlockShift(v, sft);
BigInteger bi_sft;
if (sft > 0)
{
bi_sft = bi >> (sft * UIntUtil.UInt32Bits - 1);
if ((bi_sft & 1) == 1)
{
bi_sft = (bi_sft >> 1) + 1;
Console.WriteLine("RoundUp");
}
else
{
bi_sft >>= 1;
Console.WriteLine("RoundDown");
}
}
else
{
bi_sft = bi >> (sft * UIntUtil.UInt32Bits);
Console.WriteLine("RoundDown");
}
Console.WriteLine(sft);
Console.WriteLine(v.ToHexcode());
Console.WriteLine(v_sft.ToHexcode());
Assert.AreEqual(bi_sft, v_sft);
Console.Write("\n");
}
}
public static Accumulator <N> RightRoundBlockShift(Accumulator <N> n, int sft)
{
return(new Accumulator <N>(BigUInt <Double <N> > .RightRoundBlockShift(n.value, sft)));
}
public static Mantissa <N> RightRoundBlockShift(Mantissa <N> n, int sft)
{
return(new Mantissa <N>(BigUInt <N> .RightRoundBlockShift(n.value, sft)));
}
