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Compiler Error CS1554

Declaration is not valid; use '<type> operator op (...' instead

The return type for a user-defined operator must appear before the keyword operator.

The following sample generates CS1554:

// CS1554.cs
class MyClass
   public static operator ++ MyClass (MyClass f)    // CS1554
   // try the following line instead
   // public static MyClass operator ++ (MyClass f)
      return new MyClass ();

   public static void Main()
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