Compiler Error CS0244

Neither 'is' nor 'as' is valid on pointer types

The is and as operators are not valid for use on pointer types. For more information, see Unsafe Code and Pointers.

The following sample generates CS0244:

C#

// CS0244.cs  
// compile with: /unsafe  
  
class UnsafeTest  
{  
   unsafe static void SquarePtrParam (int* p)  
   {  
      bool b = p is object;   // CS0244 p is pointer  
   }  
  
   unsafe public static void Main()  
   {  
      int i = 5;  
      SquarePtrParam (&i);  
   }  
}