Thread: nested class as friend

class Outer
{
class Inner
{
...
}
};

class Other
{
...
friend class Outer; // OK
friend class Outer::Inner; // Wrongo (Inner not visible in Other scope as a type within Outer.)
};

How in C++ can class Inner also be made friend of class Other? Perhaps friendship should automatically be extended to nested classes of outer class??

Using bcc32 this skeletal code compiled without error..

Code:

class Outer {
  class Inner {
    //...
  };
};

class Other {
  //...
  friend class Outer;
  friend class Outer::Inner;
};

Don't understand the problem your having

in C++ "friendship" is not shared, just b/c you declare Outer to be a friend of an Inner it doesn't mean that automaticly Inner is a friend of outer, it's a bit confusing and totally different when it comes to real world human friendship....

what you need to do is: inside the body of Inner declare Outer to it's friend and in the body of Inner declare Outer to be a friend of Inner..

Remember: "friendship" in C++ is not shared, nor inherited, nor it is nested.....

hope this helps...

matheo917