25object_in_func_arg.cpp

#include<iostream>
using namespace std;

class complex
{
    int a, b;
    public:
    void setData(int i, int r)
    {
        a = r;
        b = i;
    }
    void complexsum(complex ob1, complex ob2) //here we passed objects as formal arguments in a class function
    {
        a = ob1.a + ob2.a;
        b = ob1.b + ob2.b;
    }
    void printcomplex()
    {
        cout<<"z1 + z2 = "<<a<<" + "<<b<<"i"<<endl;
    }
    void printcomplexz1()
    {
        cout<<"z1 = "<<a<<" + "<<b<<"i"<<endl;
    }
    void printcomplexz2()
    {
        cout<<"z2 = "<<a<<" + "<<b<<"i"<<endl;
    }
};
int main()
{
    complex z1, z2, z3;

    z1.setData(3, 7);
    z1.printcomplexz1();

    z2.setData(9, 5);
    z2.printcomplexz2();

    z3.complexsum(z1, z2); //here we passed objects as actual arguments in a class function
    z3.printcomplex();
    return 0;
}