inherit class from structure
 

Hi,

Is this valid in C++??

struct A{...};

class B: public A{...};

Thanks!

Re: inherit class from structure
 

In C++ A Struct IS a Class. The only difference is that in a class, the members by default are private. In a Struct, they are by default public.

class base
{ protected:
struct node{};
};
class derived :public base
{
struct node *prev;
};

when i do this i 'm getting an error that prev is not a member of base::node.
what can i do if i want to declare an additional variable
of struct node type in class derived

richard bach, when I compile exactly what you have, i don't get a problem.
Using Visual Studio 2008. V.9.021022.8

#include <iostream>



using namespace std;





class base

{ protected:

struct node{};

};

class derived :public base

{

struct node *prev;

};





class A

{

   public:

      int a;

};



struct B : A { };



struct C

{

public:

      int c;

};



class D : public C { };



int main()

{

   B b;

   D d;

   b.a = 1;

   d.c = 2;

   cout << b.a << " " << d.c << endl;

}

I compile that and no errors, and I do actually get the numbers.
I don't know to what extend this works, but to this, it is working.