Structure error references in range [C2491, C2520]

docs/error-messages/compiler-errors-1/compiler-error-c2491.md

@@ -1,20 +1,23 @@
 ---
-description: "Learn more about: Compiler Error C2491"
 title: "Compiler Error C2491"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Error C2491"
+ms.date: 11/04/2016
 f1_keywords: ["C2491"]
 helpviewer_keywords: ["C2491"]
-ms.assetid: 4e5a8f81-124e-402c-a5ec-d35a89b5469e
 ---
 # Compiler Error C2491
 
-'identifier' : definition of dllimport function not allowed
+> 'identifier' : definition of dllimport function not allowed
+
+## Remarks
 
 Data, static data members, and functions can be declared as `dllimport`s but not defined as `dllimport`s.
 
 To fix this issue, remove the `__declspec(dllimport)` specifier from the definition of the function.
 
-The following sample generates C2491:
+## Example
+
+The following example generates C2491:
 
 ```cpp
 // C2491.cpp

docs/error-messages/compiler-errors-1/compiler-error-c2492.md

@@ -1,18 +1,21 @@
 ---
-description: "Learn more about: Compiler Error C2492"
 title: "Compiler Error C2492"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Error C2492"
+ms.date: 11/04/2016
 f1_keywords: ["C2492"]
 helpviewer_keywords: ["C2492"]
-ms.assetid: 8c44c9bb-c366-4fe5-a0ab-882e38608aaa
 ---
 # Compiler Error C2492
 
-'*variable*': data with thread storage duration may not have dll interface
+> '*variable*': data with thread storage duration may not have dll interface
+
+## Remarks
 
 The variable is declared with the [thread](../../cpp/thread.md) attribute and with the DLL interface. The address of the `thread` variable is not known until run time, so it cannot be linked to a DLL import or export.
 
-The following sample generates C2492:
+## Example
+
+The following example generates C2492:
 
 ```cpp
 // C2492.cpp

docs/error-messages/compiler-errors-1/compiler-error-c2493.md

@@ -1,18 +1,21 @@
 ---
-description: "Learn more about: Compiler Error C2493"
 title: "Compiler Error C2493"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Error C2493"
+ms.date: 11/04/2016
 f1_keywords: ["C2493"]
 helpviewer_keywords: ["C2493"]
-ms.assetid: 68316cd5-682b-49c3-b6ea-23c4e5d296cf
 ---
 # Compiler Error C2493
 
-illegal form of __based
+> illegal form of __based
+
+## Remarks
 
 A **`__based`** expression must be based on a pointer.
 
-The following sample generates C2493:
+## Example
+
+The following example generates C2493:
 
 ```cpp
 // C2493.cpp

docs/error-messages/compiler-errors-1/compiler-error-c2494.md

@@ -1,18 +1,21 @@
 ---
-description: "Learn more about: Compiler Error C2494"
 title: "Compiler Error C2494"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Error C2494"
+ms.date: 11/04/2016
 f1_keywords: ["C2494"]
 helpviewer_keywords: ["C2494"]
-ms.assetid: 5dfd07ab-351d-49c9-b54e-f0a104776ab8
 ---
 # Compiler Error C2494
 
 > '*keyword*' cannot be called from within a filter expression or __finally/finally block
 
+## Remarks
+
 You cannot use *keyword* in a **`__finally`** or **`finally`** block.
 
-The following sample generates C2494:
+## Examples
+
+The following example generates C2494:
 
 ```cpp
 // C2494.cpp

docs/error-messages/compiler-errors-1/compiler-error-c2495.md

@@ -1,18 +1,21 @@
 ---
-description: "Learn more about: Compiler Error C2495"
 title: "Compiler Error C2495"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Error C2495"
+ms.date: 11/04/2016
 f1_keywords: ["C2495"]
 helpviewer_keywords: ["C2495"]
-ms.assetid: bb7066fe-3549-4901-97e4-157f3c04dd57
 ---
 # Compiler Error C2495
 
-'identifier' : 'nothrow' can only be applied to function declarations or definitions
+> 'identifier' : 'nothrow' can only be applied to function declarations or definitions
+
+## Remarks
 
 The [nothrow](../../cpp/nothrow-cpp.md) extended attribute can be applied to function declarations or definitions only.
 
-The following sample generates C2495:
+## Example
+
+The following example generates C2495:
 
 ```cpp
 // C2495.cpp

docs/error-messages/compiler-errors-1/compiler-error-c2496.md

@@ -1,18 +1,21 @@
 ---
-description: "Learn more about: Compiler Error C2496"
 title: "Compiler Error C2496"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Error C2496"
+ms.date: 11/04/2016
 f1_keywords: ["C2496"]
 helpviewer_keywords: ["C2496"]
-ms.assetid: 9a25237d-5bbb-4112-98f3-29cd99d3f89f
 ---
 # Compiler Error C2496
 
-'identifier' : 'selectany' can only be applied to data items with external linkage
+> 'identifier' : 'selectany' can only be applied to data items with external linkage
+
+## Remarks
 
 The [selectany](../../cpp/selectany.md) attribute can be applied only to externally visible and global data items.
 
-The following sample generates C2496:
+## Example
+
+The following example generates C2496:
 
 ```cpp
 // C2496.cpp

docs/error-messages/compiler-errors-1/compiler-error-c2498.md

@@ -1,20 +1,21 @@
 ---
-description: "Learn more about: Compiler Error C2498"
 title: "Compiler Error C2498"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Error C2498"
+ms.date: 11/04/2016
 f1_keywords: ["C2498"]
 helpviewer_keywords: ["C2498"]
-ms.assetid: 0839f12c-aaa4-4a02-bb33-7f072715dd14
 ---
 # Compiler Error C2498
 
-'function' : 'novtable' can only be applied to class declarations or definitions
+> 'function' : 'novtable' can only be applied to class declarations or definitions
+
+## Remarks
 
 This error can be caused by using `__declspec(novtable)` with a function.
 
 ## Example
 
-The following sample generates C2498:
+The following example generates C2498:
 
 ```cpp
 // C2498.cpp

docs/error-messages/compiler-errors-1/compiler-error-c2499.md

@@ -1,18 +1,21 @@
 ---
-description: "Learn more about: Compiler Error C2499"
 title: "Compiler Error C2499"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Error C2499"
+ms.date: 11/04/2016
 f1_keywords: ["C2499"]
 helpviewer_keywords: ["C2499"]
-ms.assetid: b323ff4d-b3c1-4bfd-b052-ae7292d53222
 ---
 # Compiler Error C2499
 
-'class' : a class cannot be its own base class
+> 'class' : a class cannot be its own base class
+
+## Remarks
 
 You attempted to specify the class that you are defining as a base class.
 
-The following sample generates C2499:
+## Example
+
+The following example generates C2499:
 
 ```cpp
 // C2499.cpp

docs/error-messages/compiler-errors-2/compiler-error-c2500.md

@@ -1,22 +1,25 @@
 ---
-description: "Learn more about: Compiler Error C2500"
 title: "Compiler Error C2500"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Error C2500"
+ms.date: 11/04/2016
 f1_keywords: ["C2500"]
 helpviewer_keywords: ["C2500"]
-ms.assetid: 6bff8161-dc9a-48ca-91f1-fd2eefdbbc93
 ---
 # Compiler Error C2500
 
-'identifier1' : 'identifier2' is already a direct base class
+> 'identifier1' : 'identifier2' is already a direct base class
+
+## Remarks
 
 A class or structure appears more than once in a list of base classes.
 
 A direct base is one mentioned in the base list. An indirect base is a base class of one of the classes in the base list.
 
 A class cannot be specified as a direct base class more than once. A class can be used as an indirect base class more than once.
 
-The following sample generates C2500:
+## Example
+
+The following example generates C2500:
 
 ```cpp
 // C2500.cpp

docs/error-messages/compiler-errors-2/compiler-error-c2502.md

@@ -1,18 +1,21 @@
 ---
-description: "Learn more about: Compiler Error C2502"
 title: "Compiler Error C2502"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Error C2502"
+ms.date: 11/04/2016
 f1_keywords: ["C2502"]
 helpviewer_keywords: ["C2502"]
-ms.assetid: affa0b86-15fc-4e17-b7f2-6aad4a3771c4
 ---
 # Compiler Error C2502
 
-'identifier' : too many access modifiers on the base class
+> 'identifier' : too many access modifiers on the base class
+
+## Remarks
 
 The base class has more than one access modifier. Only one access modifier (**`public`**, **`private`**, or **`protected`**) is allowed.
 
-The following sample generates C2502:
+## Example
+
+The following example generates C2502:
 
 ```cpp
 // C2502.cpp

docs/error-messages/compiler-errors-2/compiler-error-c2503.md

@@ -1,18 +1,21 @@
 ---
-description: "Learn more about: Compiler Error C2503"
 title: "Compiler Error C2503"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Error C2503"
+ms.date: 11/04/2016
 f1_keywords: ["C2503"]
 helpviewer_keywords: ["C2503"]
-ms.assetid: da86cc89-fd04-400b-aa8d-a5ffaf7e3918
 ---
 # Compiler Error C2503
 
-'class' : base classes cannot contain zero-sized arrays
+> 'class' : base classes cannot contain zero-sized arrays
+
+## Remarks
 
 A base class or structure contains a zero-sized array. An array in a class must have at least one element.
 
-The following sample generates C2503:
+## Example
+
+The following example generates C2503:
 
 ```cpp
 // C2503.cpp

docs/error-messages/compiler-errors-2/compiler-error-c2504.md

@@ -1,22 +1,25 @@
 ---
-description: "Learn more about: Compiler Error C2504"
 title: "Compiler Error C2504"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Error C2504"
+ms.date: 11/04/2016
 f1_keywords: ["C2504"]
 helpviewer_keywords: ["C2504"]
-ms.assetid: c9e002a6-a4ee-4ba7-970e-edf4adb83692
 ---
 # Compiler Error C2504
 
-'class' : base class undefined
+> 'class' : base class undefined
+
+## Remarks
 
 The base class is declared but never defined. Possible causes:
 
 1. Missing include file.
 
 1. External base class not declared with [extern](../../cpp/extern-cpp.md).
 
-The following sample generates C2504:
+## Example
+
+The following example generates C2504:
 
 ```cpp
 // C2504.cpp

docs/error-messages/compiler-errors-2/compiler-error-c2505.md

@@ -1,20 +1,23 @@
 ---
-description: "Learn more about: Compiler Error C2505"
 title: "Compiler Error C2505"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Error C2505"
+ms.date: 11/04/2016
 f1_keywords: ["C2505"]
 helpviewer_keywords: ["C2505"]
-ms.assetid: b19f5c53-399d-425e-90db-fe3ca9b40858
 ---
 # Compiler Error C2505
 
-'symbol' : '__declspec(modifer)' can only be applied to declarations or definitions of global objects or static data members
+> 'symbol' : '__declspec(modifer)' can only be applied to declarations or definitions of global objects or static data members
+
+## Remarks
 
 A **`__declspec`** modifier that is designed to only be used at global scope was used in a function.
 
 For more information, see [appdomain](../../cpp/appdomain.md) and [process](../../cpp/process.md).
 
-The following sample generates C2505:
+## Example
+
+The following example generates C2505:
 
 ```cpp
 // C2505.cpp

docs/error-messages/compiler-errors-2/compiler-error-c2506.md

@@ -1,22 +1,23 @@
 ---
-description: "Learn more about: Compiler Error C2506"
 title: "Compiler Error C2506"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Error C2506"
+ms.date: 11/04/2016
 f1_keywords: ["C2506"]
 helpviewer_keywords: ["C2506"]
-ms.assetid: cfed21cd-2404-46f2-985e-d0c2c3820830
 ---
 # Compiler Error C2506
 
-'member' : '__declspec(modifier)' cannot be applied to this symbol
+> 'member' : '__declspec(modifier)' cannot be applied to this symbol
+
+## Remarks
 
 You cannot declare per-process or per-appdomain for static members of a managed class.
 
 See [appdomain](../../cpp/appdomain.md) for more information.
 
 ## Example
 
-The following sample generates C2506.
+The following example generates C2506.
 
 ```cpp
 // C2506.cpp