public void SetBit()
{
string AsString;
using mpz_t a = new mpz_t("A0000000000000000000200000000001", 16);
AsString = a.ToString(16).ToUpper();
Assert.AreEqual("A0000000000000000000200000000001", AsString);
a.SetBit(47);
AsString = a.ToString(16).ToUpper();
Assert.AreEqual("A0000000000000000000A00000000001", AsString);
a.SetBit(47);
AsString = a.ToString(16).ToUpper();
Assert.AreEqual("A0000000000000000000A00000000001", AsString);
a.ClearBit(45);
AsString = a.ToString(16).ToUpper();
Assert.AreEqual("A0000000000000000000800000000001", AsString);
a.ClearBit(45);
AsString = a.ToString(16).ToUpper();
Assert.AreEqual("A0000000000000000000800000000001", AsString);
a.ClearBit(131);
AsString = a.ToString(16).ToUpper();
Assert.AreEqual("A0000000000000000000800000000001", AsString);
a.SetBit(131);
AsString = a.ToString(16).ToUpper();
Assert.AreEqual("8A0000000000000000000800000000001", AsString);
}