Why cannot a non-member function be used for overloading the assignment operator?

Question

The assignment operator can be overloaded using a member function but not a non-member friend function:

class Test
{
    int a;
public:
    Test         


        

Answer 1

Why friend function can't be used for overloading assignment operator?

Short answer: Just because.

Somewhat longer answer: That's the way the syntax was fixed. A few operators have to be member functions. The assignment operator is one of the,