Compiler Error C2640

 

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

For the latest documentation on Visual Studio 2017, see Compiler Error C2640 on docs.microsoft.com. 'identifier' : __based modifier illegal on reference

The __based modifier can be used on pointers only.

The following sample generates C2640:

// C2640.cpp  
void f(int i) {  
    void *vp;  
    int _based(vp) &vr = I;  // C2640  
}  

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