FIX: Destructor Called on Non Constructed Temporary

MORE INFORMATION

Sample Code to Reproduce Problem

/* Compile options needed, choose one of the following:
          none           - To demonstrate the problem.
          /DWORKAROUND1  - For workaround 1.
          /DWORKAROUND2  - For workaround 2.
          /DWORKAROUND3  - For workaround 3.
*/ 

#include <iostream.h>

class A;

class B
{
   B *pBthis;
public:
   B() {
      pBthis = this;
      cout << "-- B ctor called, Created B: " << (long)this << endl;
   }
#ifdef WORKAROUND1
   B(const A&) {
      pBthis = this;
      cout << "-- B(A) ctor called, Created B: " << (long)this << endl;
   }
#endif
   B( const B& b ) {
      pBthis = this;
      cout << "-- B copy ctor, Created B: " << (long)this << endl;
   }
   ~B() {
      cout << "-- B dtor called, Destroyed B: " << (long)this << endl;
     if (pBthis != this)
         cout << "    This B was never constructed!" << endl;
   }
};

class A
{
public:

   A() { cout << "-- A ctor called" << endl; }
   ~A() { cout << "-- A dtor called" << endl; }

#ifndef WORKAROUND1
   operator B() {
      cout << "-- Class A -> Class B conversion called" << endl;
      B b1;
      return b1;
   }
#endif

};

#ifdef WORKAROUND2
void test(const B &b)
#else
void test(B b)
#endif
{
   cout << "-- Calling function test(B) on B: " << (long)(&b) << endl;
}

int main()
{
   A a;
#ifdef WORKAROUND3

   B b(a);
   test(b);
#else
   test(a);
#endif
   return 0;
}