Method Sub

extern/ttmath/ttmathint.h:298–306

! this method subtracts two values with a sign we don't use the previous Add because the method ChangeSign can sometimes return carry this = p1(=this) - p2 when p1>=0 i p2>=0 carry will never be set when p1<0 i p2<0 carry will never be set when p1>=0 i p2<0 carry is set when the highest bit of value is set when p1<0 i p2>=0 carry is set when the highest bit of value is cle

		when p1<0  i p2>=0 carry is set when the highest bit of value is clear
	*/
	uint Sub(const Int<value_size> & ss2)
	{
		bool p1_is_sign = IsSign();
		bool p2_is_sign = ss2.IsSign();

		UInt<value_size>::Sub(ss2);		

	return CorrectCarryAfterSubtracting(p1_is_sign, p2_is_sign);
	}


	/*!