Answer the following questions true (T) or false (F)

Question

1. If I have already written the #include header, I can overload operator<< for class A as follows:
std::ostream& operator<< (std::ostream& out,const A& obj);

2. You have a helping function that is not a member of your class. You want your class member functions to be able to see it and use it but no other file in your program may see it. You can place it in an unnamed namespace to make it invisible from outside the file.

Answer 1

1. True
Explanation: You can qualify any name in a namespace using the namespace name and the scope resolution operator.
2. True
Explanation: Unnamed namespaces make a collection of names available to any function or class member function in the file, but not to any function outside the file.