Compiler Error C2624

 

For the latest documentation on Visual Studio 2017 RC, see Visual Studio 2017 RC Documentation.

local classes cannot be used to declare 'extern' variables

A local class or structure cannot be used to declare extern variables.

The following sample generates C2624:

// C2624.cpp  
int main() {  
   struct C {};  
   extern C ac;   // C2624  
}  

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