Complex conjugation

cnumber.cpp

@@ -6,6 +6,12 @@ int main() {
 	cnumber a(1, -3);
 	cnumber b(2, 5);
 
-	cout << "a = " << a << " b = " <<  b << " a + b =  " << a + b << endl;
+	cout << "a = " << a << endl;
-	cout << "a = " << a << " b = " <<  b << " a * b =  " << a * b << endl;
+	cout << "a* = " << a.conjugate() << endl;
+	cout << "b = " <<  b << endl;
+	cout << "b* = " << b.conjugate() << endl;
+	cout << "a + b =  " << a + b << endl;
+	cout << "(a + b)* =  " << (a + b).conjugate() << endl;
+	cout << "a * b =  " << a * b << endl;
+	cout << "(a * b)* =  " << (a * b).conjugate() << endl;
 }

cnumber.hpp

@@ -11,6 +11,7 @@ class cnumber {
 		}
 
 	public:
+		// Constructor
 		cnumber(int a, int b) {
 			r = a;
 			i = b;
@@ -18,6 +19,14 @@ class cnumber {
 			signi = get_sign(i);
 			
 		}
+		// Member functions
+		cnumber conjugate() {
+			cnumber z(this->r, this->i * -1);
+			return z;
+		}
+
+
+		// Operators
 		cnumber operator+(const cnumber &that) {
 			cnumber z(that.r + this->r, that.i + this->i);
 			return z;
@@ -31,7 +40,12 @@ class cnumber {
 			os << z.r << (z.signi ? '+' : '\0' ) <<  z.i << 'i'; 
 			return os;            
 		}
-
+		void operator=(const cnumber &z ) { 
+			r = z.r;
+			i = z.i;
+			signr = z.signr;
+			signi = z.signi;
+		}
 
 };