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// Build don't link:
// GROUPS passed visibility
// visibility file
// From: Gordon Joly <G.Joly@cs.ucl.ac.uk>
// Date: Wed, 21 Apr 93 09:42:07 +0100
// Subject: /*** BUG REPORT : THE MYTH OF PRIVATE INHERITANCE ***/
// Message-ID: <9304210842.AA01815@life.ai.mit.edu>
#include <iostream.h>
class A {
private:
int number;
public:
A(int i) : number(i)
{}
virtual ~A()
{}
virtual void Number(int c)
{ number = c; } // ERROR - private
virtual int Number()
{ return number; } // ERROR - private
};
class B : private A {
private:
int second_number;
public:
B(int c, int i) : second_number(c), A(i)
{}
virtual ~B()
{}
virtual void firstNumber(int b) // renames member function Number(int) of class A
{ A::Number(b); }
virtual int firstNumber() // renames member function Number() of class A
{ return A::Number(); }
};
class C {
private:
B* bobject;
public:
C(B* bp) : bobject(bp)
{}
virtual ~C()
{}
//
// the following two functions access
// private member functions of class B
// and they should not be able to do so
//
virtual void setBValue(int i)
{ if (bobject) bobject->Number(i); }// ERROR - .*
virtual int getBValue()
{ if (bobject) { return bobject->Number(); } return 0; }// ERROR - .*
};
main()
{
B* bobject = new B(2, 1);
C* cobject = new C(bobject);
cobject->setBValue(8);
cout << cobject->getBValue() << endl;
delete bobject;
delete cobject;
}
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