/// <summary>
/// This method multiplys two values given by user (this, other)
/// </summary>
/// <param name="other">Second value to multiply</param>
/// <returns>Multiply object</returns>
public override Number Calculate(Number num1, Number num2)
{
char[] a = num1.GetNumber(num1).ToCharArray();
char[] b = num2.GetNumber(num2).ToCharArray();
int[] c = new int[a.Length + b.Length];
int[] d = new int[a.Length + b.Length];
//Null object or empty array checking
if (num2 is null || this is null || a.Length == 0 || b.Length == 0)
{
num2.AssignInputValue("");
return(num2);
}
for (int i = 0; i < b.Length; i++)
{
int bIndex = b.Length - 1 - i;
char bitA, bitB;
bitB = bIndex >= 0 ? b[bIndex] : '0';
if (bitB != '0' && i == 0)
{
for (int j = 0; j < c.Length - i; j++)
{
int aIndex = a.Length - 1 - j;
bitA = aIndex >= 0 ? a[aIndex] : '0';
c[c.Length - j - 1 - i] = bitA == '0' ? 0 : 1;
}
}
if (bitB == '0' && i != 0 && (a.Length > 1 || b.Length > 1))
{
for (int j = 0; j < d.Length; j++)
{
d[j] = 0;
}
}
if (bitB != '0' && i != 0 && (a.Length > 1 || b.Length > 1))
{
for (int j = 0; j < i; j++)
{
d[d.Length - 1 - j] = 0;
}
for (int j = 0; j < d.Length - i; j++)
{
int aIndex = a.Length - 1 - j;
bitA = aIndex >= 0 ? a[aIndex] : '0';
d[d.Length - j - 1 - i] = bitA == '0' ? 0 : 1;
}
}
string s1 = string.Join("", c);
string s2 = string.Join("", d);
Number m1 = new Binary(s1);
Number m2 = new Binary(s2);
Operation ab = new AddOperation();
var m3 = ab.Calculate(m1, m2).ToString();
for (int k = 0; k < m3.Length; k++)
{
c[k] = m3[k] - '0';
}
}
bool first = true;
var sb = new StringBuilder();
int countZeros = 0;
for (int i = 0; i < c.Length; i++)
{
if (first)
{
if (c[i] != 0)
{
first = false;
sb.Append((char)(c[i] + '0'));
continue;
}
else
{
countZeros++;
}
}
else
{
sb.Append((char)(c[i] + '0'));
}
if (countZeros == c.Length)
{
sb.Append((char)(c[i] + '0'));
}
}
//Console.WriteLine("Multiply: " + sb.ToString());
if (((!num1.GetSign(num1) && !num2.GetSign(num2)) || (num1.GetSign(num1) && num2.GetSign(num2))) || (countZeros == c.Length))
{
return(new Binary(sb.ToString()));
}
else
{
return(new Binary(sb.ToString(), true));
}
}
/// <summary>
/// This method subtract the two values given by user (this, other)
/// </summary>
/// <param name="other">Second value to Add</param>
/// <returns>Add object</returns>
public override Number Calculate(Number num1, Number num2)
{
char[] a = num1.GetNumber(num1).ToCharArray();
char[] b = num2.GetNumber(num2).ToCharArray();
//Null object or empty array checking
if (num2 is null || this is null || a.Length == 0 || b.Length == 0)
{
num2.AssignInputValue("");
return(num2);
}
if ((num1.GetNumber(num1) == num2.GetNumber(num2)) && (num1.GetSign(num1) && num2.GetSign(num2)))
{
num2.AssignInputValue("0", false);
return(num2);
}
bool flag = false;
int len = a.Length > b.Length ? a.Length : b.Length;
if (b.Length > a.Length)
{
flag = true;
}
else if (b.Length == a.Length)
{
for (int i = 0; i < a.Length; i++)
{
if (a[i] < b[i])
{
flag = true;
break;
}
else
{
flag = false;
break;
}
}
}
else
{
flag = false;
}
a = num1.GetNumber(num1).PadLeft(b.Length, '0').ToCharArray();
b = num2.GetNumber(num2).PadLeft(a.Length, '0').ToCharArray();
if (flag)
{
for (int i = 0; i < len; i++)
{
char temp = a[i];
a[i] = b[i];
b[i] = temp;
}
}
for (int i = 0; i < len; i++)
{
if (b[i] == '0')
{
b[i] = '1';
}
else
{
b[i] = '0';
}
}
Number add1 = new Binary(new String(b));
Number add2 = new Binary("1");
Operation addSum1 = new AddOperation();
Number sum1 = addSum1.Calculate(add1, add2);
Number add3 = new Binary(sum1.GetNumber(sum1));
Number add4 = new Binary(new String(a));
Operation addSum2 = new AddOperation();
Number sum2 = addSum2.Calculate(add3, add4);
char[] c = sum2.GetNumber(sum2).ToCharArray();
if (c.Length > len)
{
for (int i = 0; i < len; i++)
{
c[i] = c[i + 1];
}
c = c.Take(c.Length - 1).ToArray();
}
String p = new String(c);
//this is for when both are signed
if (num1.GetSign(num1) && num2.GetSign(num2) && !flag)
{
num2.AssignInputValue(p, true);
return(num2);
}
//this is for when this is signed and the other isn't
if (num1.GetSign(num1) && !num2.GetSign(num2))
{
Number c1 = new Binary(num1.GetNumber(num1));
Number c2 = new Binary(num2.GetNumber(num2));
Operation a1 = new AddOperation();
Number res = a1.Calculate(c1, c2);
res.AssignInputValue(res.GetNumber(res), true);
return(res);
}
//this is for when this is not signed and the other is signed
if (!num1.GetSign(num1) && num2.GetSign(num2))
{
Number c1 = new Binary(num1.GetNumber(num1));
Number c2 = new Binary(num2.GetNumber(num2));
Operation a1 = new AddOperation();
Number res = a1.Calculate(c1, c2);
return(res);
}
if (flag && num1.GetSign(num1) && num2.GetSign(num2))
{
return(new Binary(p));
}
else if (flag)
{
return(new Binary(p, true));
}
else
{
return(new Binary(p));
}
}
/// <summary>
/// This method divides the two values given by user (this, other)
/// </summary>
/// <param name="other">Second value to divide</param>
/// <returns>Divide object</returns>
public override Number Calculate(Number num1, Number num2)
{
char[] a = num1.GetNumber(num1).ToCharArray();
char[] b = num2.GetNumber(num2).ToCharArray();
bool flag1 = true, flag2 = true;
int t = 0, countZeros = 0;
//Null object or empty array checking
if (num2 is null || this is null || a.Length == 0 || b.Length == 0)
{
throw new ArgumentNullException();
/*num2.AssignInputValue("");
* return num2;*/
}
//Can't divide by zero
for (int z = 0; z < b.Length; z++)
{
if (b[z] == '0')
{
countZeros++;
}
}
if (countZeros == b.Length)
{
throw new DivideByZeroException();
}
//Example for 2/7, return 0
if (a.Length < b.Length)
{
Console.Write("0");
return(new Binary("0"));
}
else
{
if (a.Length == b.Length)
{
for (int i = 0; i < a.Length; i++)
{
if (a[i] < b[i])
{
flag1 = false;
break;
}
}
}
//E.g, 5/7, return 0
if (!flag1)
{
Console.Write("0");
return(new Binary("0"));
}
char[] c = new char[a.Length];
string q1_first = "0", q = "";
//if a.length > b.length e.g., a= 1010101 b = 100, then create new array and add zeros in the beginning.
if (a.Length > b.Length)
{
for (int i = 0; i < a.Length - b.Length; i++)
{
c[i] = '0';
}
for (int i = a.Length - b.Length; i < a.Length; i++)
{
c[i] = b[t];
t++;
}
}
else
{
for (int i = 0; i < b.Length; i++)
{
c[i] = b[i];
}
}
string s1 = new string(a);
string s2 = new string(c);
while (flag2)
{
Number n1 = new Binary(s1);
Number n2 = new Binary(s2);
Operation op = new SubOperation();
Number rem = op.Calculate(n1, n2);
s1 = rem.GetNumber(rem);
Number q1 = new Binary(q1_first);
Number q2 = new Binary("1");
Operation op1 = new AddOperation();
Number quot = op1.Calculate(q1, q2);
q1_first = quot.GetNumber(quot);
char[] p1 = rem.GetNumber(rem).ToCharArray();
char[] p2 = s2.ToCharArray();
//check if num1 is greater than num2
for (int i = 0; i < a.Length; i++)
{
if (p1[i] > p2[i])
{
flag2 = true;
break;
}
else if (p1[i] < p2[i])
{
flag2 = false;
break;
}
}
q = quot.GetNumber(quot);
}
Console.Write(q);
if (((!num1.GetSign(num1) && !num2.GetSign(num2)) || (num1.GetSign(num1) && num2.GetSign(num2))) || (q == "0"))
{
return(new Binary(q));
}
else
{
return(new Binary(q, true));
}
}
}