Nested Class using function in outer class?

[rich112]

class A:
hello()
greeting()
<>class B:
<>hello()

is there a way so that class B can access the functions in class A without having to retype the function?

[George P]

https://www.learncpp.com/cpp-tutorial/basic-inheritance-in-c/

[keskiverto]

What do you mean by "retype"?

// my first program in C++
#include <iostream>

class Foo {
  void hello() const {
    std::cout << "Hello Dolly!\n";
  }

public:
  struct Bar {
    void hello(int x) const {
      std::cout << "Hello " << x << " World!\n";
    }
    void hello( const Foo& f ) const {
      f.hello();
    }
  };
};

int main()
{
  Foo::Bar a;
  a.hello( 1 );
  Foo b;
  a.hello( b );
}

Hello 1 World!
Hello Dolly!

[Peter87]

Nested classes can access all member functions (and member variables) of the outer class but if it's a non-static member function you still need an object to call it on (as always).