BUG: Debugger Shows Incorrect "this" Pointer

MORE INFORMATION

Sample Code to Demonstrate Problem

/* This code demonstrates the problem.
   Compile options needed: none
*/ 

#include <iostream.h>

// Class definitions
class A
{
protected:
   int aint;
public:
    virtual void fA(void) = 0;
};

class B
{
protected:
   int bint;
public:
    virtual void fB(void) = 0;
};

class AB : public A, public B
{
protected:
   int abint;
public:
    virtual void fAB(void);
};

class DAB : public AB
{
protected:
   int dabint;
public:
   DAB() {aint = 1; bint = 2; abint = 3; dabint = 4;}
    void fA(void)
    {
        cout << "DAB::fA - this=" << this << endl;
    }
    void fB(void)
    {
   // The "this" pointer will be displayed incorrectly in the
   // locals window during the execution of this function. The
   // address displayed in the output window will still be correct.

        cout << "DAB::fB - this=" << this << endl;

   // The base class member variables "aint" and "bint" will be
   // displayed incorrectly in the locals window, but the derived
   // class member variables "abint" and "dabint" will be
   // incorrect.  All will show correct values in the final output.

      cout << "aint: " << aint << " bint: " << bint
         << " abint: " << abint << " dabint: " << dabint <<
 endl;
    }
};

void AB::fAB(void)
{
    cout << "AB::fAB - this=" << hex << this << endl;
    fA();
    fB();
}

void main()
{
    DAB dab;
    dab.fAB();
}