Re: A simple problem with an abstract class...

Hi,

I'm working an a large legacy app that is built with Makefiles using the
Microsoft Visual Studio 8/VC/BIN/cl.EXE compiler. I have a crazy problem
that I'm hoping someone has seen before. I've included a simplified version
of the problem that runs fine in a VC++ console test project. The project
crashes if I instantiate an object of class B without commenting out the
call to the pure virtual function x() in A::doIt(); Naturally, B deals with
objects derived from A.

Thanks for taking a look.

class A
{
public:
      void doIt() { x(); }
      virtual void x() = 0;
      virtual ~A() {}
};

class B
{
public:

      B() {}
      void push(A* pA) { ... }
      A* pop() { A* pA = ...; return pA; }
      void tryIt() { A* pA = pop(); pA->doIt(); }
};