How to: Declare Override Specifiers in Native Compilations (C++/CLI)

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sealed](../Topic/sealed%20%20(C++%20Component%20Extensions).md), abstract, and override are available in compilations that do not use /ZW or /clr.

Example

Description

The following example shows that sealed is valid in native compilations.

Code

  
      // sealed_native_keyword.cpp  
#include <stdio.h>  
__interface I1 {  
   virtual void f();  
   virtual void g();  
};  
  
class X : public I1 {  
public:  
   virtual void g() sealed {}  
};  
  
class Y : public X {  
public:  
  
   // the following override generates a compiler error  
   virtual void g() {}   // C3248 X::g is sealed!  
};  

Example

Description

The next example shows that override is valid in native compilations.

Code

// override_native_keyword.cpp  
#include <stdio.h>  
__interface I1 {  
   virtual void f();  
};  
  
class X : public I1 {  
public:  
   virtual void f() override {}   // OK  
   virtual void g() override {}   // C3668 I1::g does not exist  
};  

Example

Description

This example shows that abstract is valid in native compilations.

Code

// abstract_native_keyword.cpp  
class X abstract {};  
  
int main() {  
   X * MyX = new X;   // C3622 cannot instantiate abstract class  
}  

See Also

Override Specifiers