C++ Override >> operator

Question

I am writing a program where an arbitrarily large number is represented by a doubly linked list where a node in this list represents one digit of the large number.

As part of the problem, I need to override the '>>' operator so that when I type in a large number, the program takes the number and creates a big_number class using that number. (big_number class is the doubly linked list representing a large number.)

My Override:

istream& >> operator(istream& in, big_number& n)
{
    //Code I need to write
    return in;
}

Answer 1

This line:

istream& >> operator(istream& in, big_number& n)

should be either

istream& operator>>( istream& in, big_number& n )

or

auto operator>>( istream& in, big_number& n )
    -> istream&

In your later SO postings, please include also your build command and error messages.

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In passing, regarding terminology, this is an overload, not an override. The latter is what you have when you override a base class’ virtual member function.