Merge pull request MicrosoftDocs#3649 from corob-msft/docs/corob/cpp-docs-3239

Address cpp-docs-3239

Author: PRMerger16

docs/error-messages/compiler-errors-1/compiler-error-c2259.md

@@ -1,18 +1,18 @@
 ---
 description: "Learn more about: Compiler Error C2259"
 title: "Compiler Error C2259"
-ms.date: "11/04/2016"
+ms.date: 07/08/2021
 f1_keywords: ["C2259"]
 helpviewer_keywords: ["C2259"]
 ms.assetid: e458236f-bdea-4786-9aa6-a98d8bffa5f4
 ---
 # Compiler Error C2259
 
-'class' : cannot instantiate abstract class
+> '*class*' : cannot instantiate abstract class
 
 Code declares an instance of an abstract class or structure.
 
-You cannot instantiate a class or structure with one or more pure virtual functions. To instantiate objects of a derived class, the derived class must override each pure virtual function.
+You can't instantiate a class or structure with one or more pure virtual functions. To instantiate objects of a derived class, the derived class must override each pure virtual function.
 
 For more information, see [Implicitly abstract classes](../../dotnet/how-to-define-and-consume-classes-and-structs-cpp-cli.md#BKMK_Implicitly_abstract_classes).
 
@@ -35,15 +35,11 @@ A a;  // C2259, A inherits func() as pure virtual
 B b;  // OK, B defines func()
 ```
 
-Whenever you derive from an interface and implement the interface methods in the derived class with access permissions other than public, you may receive C2259.  This occurs because the compiler expects the interface methods implemented in the derived class to have public access. When you implement the member functions for an interface with more restrictive access permissions, the compiler does not consider them to be implementations for the interface methods defined in the interface, which in turn makes the derived class an abstract class.
+Whenever you derive from an interface and implement the interface methods in the derived class with access permissions other than `public`, you may receive C2259. The error occurs because the compiler expects the interface methods implemented in the derived class to have `public` access.
 
-There are two possible workarounds for the problem:
+To resolve this issue, don't use more restrictive access permissions for the implementation methods. The compiler doesn't consider them as implementations for the interface methods defined in the interface. In turn, that makes the derived class an abstract class. Instead, make the access permissions `public` for the implemented methods.
 
-- Make the access permissions public for the implemented methods.
-
-- Use the scope resolution operator for the interface methods implemented in the derived class to qualify the implemented method name with the name of the interface.
-
-C2259 can also occur as a result of conformance work that was done in Visual Studio 2005, **/Zc:wchar_t** is now on by default. In this situation, C2599 can be resolved either by compiling with **/Zc:wchar_t-**, to get the behavior from previous versions, or preferably, by updating your types so they are compatible. For more information, see [/Zc:wchar_t (wchar_t Is Native Type)](../../build/reference/zc-wchar-t-wchar-t-is-native-type.md).
+C2259 can also occur because of conformance work that was done in Visual Studio 2005, **`/Zc:wchar_t`** is now on by default. In this situation, C2599 can be resolved either by compiling with **`/Zc:wchar_t-`**, to get the behavior from previous versions, or preferably, by updating your types so they're compatible. For more information, see [`/Zc:wchar_t` (wchar_t Is Native Type)](../../build/reference/zc-wchar-t-wchar-t-is-native-type.md).
 
 The following sample generates C2259:
 
@@ -96,9 +92,7 @@ ref class MyDerivedClass: public MyInterface {
 private:
    // Uncomment the following line to resolve.
    // public:
-   void MyMethod(){}
-   // or the following line
-   // void MyInterface::MyMethod() {};
+   virtual void MyMethod(){}
 };
 
 int main() {