Compiler Error C2937

'class' : type-class-id redefined as a global typedef

You can't use a generic or template class as a global typedef.

This error is obsolete in Visual Studio 2022 and later versions.

The following sample generates C2937:

// C2937.cpp
// compile with: /c
template<class T>
struct TC { };
typedef int TC<int>;   // C2937
typedef TC<int> c;   // OK

C2937 can also occur when using generics:

// C2937b.cpp
// compile with: /clr
generic<class T>
ref struct GC { };
typedef int GC<int>;   // C2937
typedef GC<int> xx;   // OK

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