Why assignment operator cannot be overloaded as a friend function?

Answer 1

The syntax of overloading the assignment operator is the following:

Foo& operator=(const Foo &b)
{
// copy members
this->member = b.member;

return *this;
}

You can see that there is only one parameter.
But assignments consist out of two parts: a = b
The first operand ( a ) is included indirectly as part of the current instance. You access it with this.
Thus it has to be a member function and not an external friend function.

Answer 2

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Answer 3

It varies & depends

Answer 4

@harish please explain how it varies and depends????

Answer 5

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