Answer / som shekhar

class A
{
int id;

public:
A& operator +(const A& a1)
{
A a;
a.id = id + a1.id;
return a;
}
A & operator =(const A& a1)
{
if( this == &a1)
return;
else
{
A a;
a.id = a1.id;
return a;

}
}
};


S3 += S2 internaly will be called as
S3->operator=(s3->operator+(s2));

In this case first + operator will be called and then
assignment operator will be called.

Answer / kkk

#include <iostream.h>
class ulhas
{


}

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