Fatal Error C1202

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recursive type or function dependency context too complex

A template definition was recursive or exceeded complexity limits.

Example

The following sample generates C1202.

// C1202.cpp
// processor: x86 IPF
template<int n> 
class Factorial : public Factorial<n-1>  {   // C1202
public:
   operator int () { 
      return Factorial <n-1>::operator int () * n; 
   }
};
Factorial<7> facSeven;

Possible resolution.

// C1202b.cpp
// compile with: /c
template<int n> 
class Factorial : public Factorial<n-1> {
public:
   operator int () { 
      return Factorial <n-1>::operator int () * n; 
   }
};

template <>
class Factorial<0> {
public:
   operator int () { 
      return 1; 
   }
};

Factorial<7> facSeven;