Compiler Error C3808

'type' : a class with the ComImport attribute cannot define member 'member', only abstract or dllimport functions are allowed

Remarks

A type that derived from ComImportAttribute cannot define member.

The /clr:pure and /clr:safe compiler options are deprecated in Visual Studio 2015 and unsupported in Visual Studio 2017.

Example

The following example generates C3808.

// C3808.cpp
// compile with: /c /clr:pure user32.lib
using namespace System::Runtime::InteropServices;

[System::Runtime::InteropServices::ComImportAttribute()]
ref struct S1 {
   int f() {}   // C3808
   virtual int g() abstract;   // OK

   [DllImport("msvcrt.dll")]
   int printf(System::String ^, int i);   // OK
};