Mega Code Archive
Overload a unary operator
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#include <iostream>
using namespace std;
class MyClass {
int x, y, z;
public:
MyClass() {
x = y = z = 0;
}
MyClass(int i, int j, int k) {
x = i;
y = j;
z = k;
}
MyClass operator+(MyClass op2);
MyClass operator=(MyClass op2);
MyClass operator++();
void show() ;
} ;
MyClass MyClass::operator+(MyClass op2)
{
MyClass temp;
temp.x = x + op2.x;
temp.y = y + op2.y;
temp.z = z + op2.z;
return temp;
}
MyClass MyClass::operator=(MyClass op2)
{
x = op2.x; // These are integer assignments
y = op2.y; // and the = retains its original
z = op2.z; // meaning relative to them.
return *this;
}
MyClass MyClass::operator++()
{
x++; // increment x, y, and z
y++;
z++;
return *this;
}
void MyClass::show()
{
cout << x << ", ";
cout << y << ", ";
cout << z << endl;
}
int main()
{
MyClass a(1, 2, 3), b(10, 10, 10), c;
a.show();
b.show();
c = a + b;
c.show();
c = a + b + c;
c.show();
c = b = a;
c.show();
b.show();
++c;
c.show();
return 0;
}
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