Re: VC++ 6.0 workaround for partial specialization

Thanks for the quick replay! The problem concerns the partial
specializations in my code, here it is again with error descriptions at the
corresponding lines:

#include <cstddef>
#include <iostream>

template <class T>
struct extract { typedef T type; };

// error C2989: 'A<T,2>' : template class has already been
// defined as a non-template class
// error C2988: unrecognizable template declaration/definition
template <class T, size_t N>
struct extract<T[N]> { typedef T type; };

template <class T> struct TrackNewHelper
{
    static T* TrackNew( T* ptr, const char* file, int line)
    {
        std::cout << "Tracking object allocation" << std::endl;
        return ptr;
    }
};

// error C2989: 'A<T,2>' : template class has already been
// defined as a non-template class
// error C2988: unrecognizable template declaration/definition
template <class T, size_t N> struct TrackNewHelper<T[N]>
{
    static T* TrackNew( T* ptr, const char* file, int line)
    {
        std::cout << "Tracking array allocation " << std::endl;
        return ptr;
    }
};

template <class T> typename extract<T>::type* TrackNew(
    typename extract<T>::type* ptr, const char* file, int line )
{
    return TrackNewHelper<T>::TrackNew( ptr, file, line );
}

#define NEW( T ) TrackNew<T>( new T, __FILE__, __LINE__ )

int main()
{
   int * p = NEW( int );
   delete p;

   p = NEW( int[64] );
   delete [] p;

   return 0;
}

The problem is also described here:
http://support.microsoft.com/kb/240866/en-us

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Matthias Hofmann
Anvil-Soft, CEO
http://www.anvil-soft.com - The Creators of Toilet Tycoon
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