I've got binary number and I need to:
1) negate all bytes
2) add 1 to negate number
So, I wrote this:
public string u2_number_plus = "1001";
public string u2_number_minus = "";
public string binToU2()
{
int length = u2_number_plus.Length;
int temp = 1;
//negate all bytes
for (int a = 0; a < length; a++)
{
if (u2_number_plus[a] == '1')
u2_number_minus += '0';
else
u2_number_minus += '1';
}
//add 1 to my new (because negate) number
for (int b = length - 1; b >= 0; b--)
{
if (u2_number_minus[b] == 0 && temp == 1)
{
u2_number_minus = u2_number_minus.Replace(u2_number_minus[b], '1');
temp = 0;
}
else if (u2_number_minus[b] == 1 && temp == 1)
{
u2_number_minus = u2_number_minus.Replace(u2_number_minus[b], '0');
temp = 1;
}
else
break;
}
return u2_number_minus;
}
My function binToU2() returns negate but not increment value. If input data is 1001 I should get 0111, but function returns just 0110. Where I made a mistake?