MicrosoftDocs · Rageking8 · Aug 31, 2025 · Aug 31, 2025 · Aug 31, 2025 · Aug 31, 2025
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4621.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4621.md
@@ -1,17 +1,20 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4621"
 title: "Compiler Warning (level 1) C4621"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4621"
+ms.date: 11/04/2016
 f1_keywords: ["C4621"]
 helpviewer_keywords: ["C4621"]
-ms.assetid: 40931bd9-cb89-497e-86f0-cec9f016c63c
 ---
 # Compiler Warning (level 1) C4621
 
-no postfix form of 'operator --' found for type 'type', using prefix form
+> no postfix form of 'operator --' found for type 'type', using prefix form
+
+## Remarks
 
 There was no postfix decrement operator defined for the given type. The compiler used the overloaded prefix operator.
 
+## Example
+
 This warning can be avoided by defining a postfix `--` operator. Create a two-argument version of the `--` operator as shown below:
 
 ```cpp

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4624.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4624.md
@@ -1,18 +1,21 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4624"
 title: "Compiler Warning (level 1) C4624"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4624"
+ms.date: 11/04/2016
 f1_keywords: ["C4624"]
 helpviewer_keywords: ["C4624"]
-ms.assetid: 14f61769-d92e-482b-9515-debd87b30a66
 ---
 # Compiler Warning (level 1) C4624
 
-'derived class' : destructor was implicitly defined as deleted because a base class destructor is inaccessible or deleted
+> 'derived class' : destructor was implicitly defined as deleted because a base class destructor is inaccessible or deleted
+
+## Remarks
 
 A destructor was not accessible or deleted in a base class and was therefore not generated for a derived class. Any attempt to create an object of this type on the stack will cause a compiler error.
 
-The following sample generates C4624 and shows how to fix it:
+## Example
+
+The following example generates C4624 and shows how to fix it:
 
 ```cpp
 // C4624.cpp

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4627.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4627.md
@@ -1,20 +1,21 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4627"
 title: "Compiler Warning (level 1) C4627"
-ms.date: "09/09/2018"
+description: "Learn more about: Compiler Warning (level 1) C4627"
+ms.date: 09/09/2018
 f1_keywords: ["C4627"]
 helpviewer_keywords: ["C4627"]
-ms.assetid: 8840f3e6-b496-423a-8635-eb55d5f854a2
 ---
 # Compiler Warning (level 1) C4627
 
 > '*header_file*': skipped when looking for precompiled header use
 
+## Remarks
+
 If the current source file has the [/Yu \(Use precompiled header file)](../../build/reference/yu-use-precompiled-header-file.md) option set, then the compiler ignores everything in the file before the precompiled header is included. Warning **C4627** is generated in Visual Studio 2015 and earlier versions if *header_file* is included before the precompiled header file, and if the precompiled header does not also include *header_file*.
 
 ## Example
 
-This sample demonstrates how the error can occur, and shows how to fix it:
+This example demonstrates how the error can occur, and shows how to fix it:
 
 ```cpp
 // c4627.cpp

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4628.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4628.md
@@ -1,20 +1,23 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4628"
 title: "Compiler Warning (level 1) C4628"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4628"
+ms.date: 11/04/2016
 f1_keywords: ["C4628"]
 helpviewer_keywords: ["C4628"]
-ms.assetid: 20fdc6f8-5f6a-40cc-aff8-c7ccf3d8ec26
 ---
 # Compiler Warning (level 1) C4628
 
-digraphs not supported with -Ze. Character sequence 'digraph' not interpreted as alternate token for 'char'
+> digraphs not supported with -Ze. Character sequence 'digraph' not interpreted as alternate token for 'char'
+
+## Remarks
 
 Digraphs are not supported under [/Ze](../../build/reference/za-ze-disable-language-extensions.md). This warning will be followed by an error.
 
 This warning is off by default. See [Compiler Warnings That Are Off by Default](../../preprocessor/compiler-warnings-that-are-off-by-default.md) for more information.
 
-The following sample generates C4628:
+## Example
+
+The following example generates C4628:
 
 ```cpp
 // C4628.cpp

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4630.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4630.md
@@ -1,16 +1,21 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4630"
 title: "Compiler Warning (level 1) C4630"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4630"
+ms.date: 11/04/2016
 f1_keywords: ["C4630"]
 helpviewer_keywords: ["C4630"]
-ms.assetid: d8926376-7acc-4fc7-8438-6f0de3468870
 ---
 # Compiler Warning (level 1) C4630
 
-'symbol' : 'extern' storage class specifier illegal on member definition
+> 'symbol' : 'extern' storage class specifier illegal on member definition
+
+## Remarks
+
+A data member or member function is defined as **`extern`**. Members cannot be external, although entire objects can. The compiler ignores the **`extern`** keyword.
+
+## Example
 
-A data member or member function is defined as **`extern`**. Members cannot be external, although entire objects can. The compiler ignores the **`extern`** keyword. The following sample generates C4630:
+The following example generates C4630:
 
 ```cpp
 // C4630.cpp

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4631.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4631.md
@@ -1,13 +1,14 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4631"
 title: "Compiler Warning (level 1) C4631"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4631"
+ms.date: 11/04/2016
 f1_keywords: ["C4631"]
 helpviewer_keywords: ["C4631"]
-ms.assetid: d8636ff6-29a7-4fec-b9a6-e201d121c3ca
 ---
 # Compiler Warning (level 1) C4631
 
-MSXML or XPath unavailable, XML document comments will not be processed. reason
+> MSXML or XPath unavailable, XML document comments will not be processed. reason
+
+## Remarks
 
 Your common language runtime installation did not have the necessary files to support processing doc comment. Reinstall the common language runtime.
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4632.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4632.md
@@ -1,18 +1,21 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4632"
 title: "Compiler Warning (level 1) C4632"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4632"
+ms.date: 11/04/2016
 f1_keywords: ["C4632"]
 helpviewer_keywords: ["C4632"]
-ms.assetid: 9e35d205-cf21-4e34-8bd5-e1e7b0e2cdd3
 ---
 # Compiler Warning (level 1) C4632
 
-XML document comment: file - access denied: reason
+> XML document comment: file - access denied: reason
+
+## Remarks
 
 The path to .xdc file (`file`) was not valid, and no .xdc file created.
 
-The following sample generates C4632:
+## Example
+
+The following example generates C4632:
 
 ```cpp
 // C4632.cpp

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4650.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4650.md
@@ -1,14 +1,15 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4650"
 title: "Compiler Warning (level 1) C4650"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4650"
+ms.date: 11/04/2016
 f1_keywords: ["C4650"]
 helpviewer_keywords: ["C4650"]
-ms.assetid: 3190b3e3-dcd6-4846-939b-f900ab652b2a
 ---
 # Compiler Warning (level 1) C4650
 
-debugging information not in precompiled header; only global symbols from the header will be available
+> debugging information not in precompiled header; only global symbols from the header will be available
+
+## Remarks
 
 The precompiled header file was not compiled with Microsoft symbolic debugging information.
 

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4651.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4651.md
@@ -1,14 +1,15 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4651"
 title: "Compiler Warning (level 1) C4651"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4651"
+ms.date: 11/04/2016
 f1_keywords: ["C4651"]
 helpviewer_keywords: ["C4651"]
-ms.assetid: f1ea82aa-4dc1-4972-b55a-57fdb962f0dd
 ---
 # Compiler Warning (level 1) C4651
 
-'definition' specified for precompiled header but not for current compile
+> 'definition' specified for precompiled header but not for current compile
+
+## Remarks
 
 The definition was specified when the precompiled header was generated, but not in this compilation.
 

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4652.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4652.md
@@ -1,14 +1,15 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4652"
 title: "Compiler Warning (level 1) C4652"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4652"
+ms.date: 11/04/2016
 f1_keywords: ["C4652"]
 helpviewer_keywords: ["C4652"]
-ms.assetid: 2cf2c666-8cdd-4dd9-bda0-662921498b03
 ---
 # Compiler Warning (level 1) C4652
 
-compiler option 'option' inconsistent with precompiled header; current command-line option will override that defined in the precompiled header
+> compiler option 'option' inconsistent with precompiled header; current command-line option will override that defined in the precompiled header
+
+## Remarks
 
 The given command-line option differed from that given when the precompiled header (.pch) was created. The option specified in the current command line was used.
 

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4655.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4655.md
@@ -1,10 +1,9 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4655"
 title: "Compiler Warning (level 1) C4655"
-ms.date: "08/27/2018"
+description: "Learn more about: Compiler Warning (level 1) C4655"
+ms.date: 08/27/2018
 f1_keywords: ["C4655"]
 helpviewer_keywords: ["C4655"]
-ms.assetid: 540f2c7a-e4a1-49af-84b4-03eeea1bbf41
 ---
 # Compiler Warning (level 1) C4655
 

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4656.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4656.md
@@ -1,14 +1,15 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4656"
 title: "Compiler Warning (level 1) C4656"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4656"
+ms.date: 11/04/2016
 f1_keywords: ["C4656"]
 helpviewer_keywords: ["C4656"]
-ms.assetid: b5aaef74-2320-4345-a6ae-b813881a491c
 ---
 # Compiler Warning (level 1) C4656
 
-'symbol' : data type is new or has changed since the last build, or is defined differently elsewhere
+> 'symbol' : data type is new or has changed since the last build, or is defined differently elsewhere
+
+## Remarks
 
 You added or changed a data type, making it new to your source code since the last successful build. Edit and Continue does not support changes to existing data types.
 

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4657.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4657.md
@@ -1,14 +1,15 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4657"
 title: "Compiler Warning (level 1) C4657"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4657"
+ms.date: 11/04/2016
 f1_keywords: ["C4657"]
 helpviewer_keywords: ["C4657"]
-ms.assetid: eb750050-cea6-4ead-b80c-d5dcd4971cfc
 ---
 # Compiler Warning (level 1) C4657
 
-expression involves a data type that is new since the last build
+> expression involves a data type that is new since the last build
+
+## Remarks
 
 You added or changed a data type, making it new to your source code since the last successful build. Edit and Continue does not support changes to existing data types.
 

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4659.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4659.md
@@ -1,17 +1,22 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4659"
 title: "Compiler Warning (level 1) C4659"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4659"
+ms.date: 11/04/2016
 f1_keywords: ["C4659"]
 helpviewer_keywords: ["C4659"]
-ms.assetid: e29ba8db-7917-43f6-8e34-868b752279ae
 ---
 # Compiler Warning (level 1) C4659
 
-\#pragma 'pragma' : use of reserved segment 'segment' has undefined behavior, use #pragma comment(linker, ...)
+> #pragma 'pragma' : use of reserved segment 'segment' has undefined behavior, use #pragma comment(linker, ...)
+
+## Remarks
 
 The .drectve option was used to pass an option to the linker. Instead use pragma [comment](../../preprocessor/comment-c-cpp.md) for passing a linker option.
 
+## Example
+
+The following example generates C4659:
+
 ```cpp
 // C4659.cpp
 // compile with: /W1 /LD

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-2-c4653.md b/docs/error-messages/compiler-warnings/compiler-warning-level-2-c4653.md
@@ -1,14 +1,15 @@
 ---
-description: "Learn more about: Compiler Warning (level 2) C4653"
 title: "Compiler Warning (level 2) C4653"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 2) C4653"
+ms.date: 11/04/2016
 f1_keywords: ["C4653"]
 helpviewer_keywords: ["C4653"]
-ms.assetid: 90ec3317-3d39-4b4c-bcd1-97e7c799e1b6
 ---
 # Compiler Warning (level 2) C4653
 
-compiler option 'option' inconsistent with precompiled header; current command-line option ignored
+> compiler option 'option' inconsistent with precompiled header; current command-line option ignored
+
+## Remarks
 
 An option specified with the Use Precompiled Headers ([/Yu](../../build/reference/yu-use-precompiled-header-file.md)) option was inconsistent with the options specified when the precompiled header was created. This compilation used the option specified when the precompiled header was created.
 

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-3-c4622.md b/docs/error-messages/compiler-warnings/compiler-warning-level-3-c4622.md
@@ -1,14 +1,15 @@
 ---
-description: "Learn more about: Compiler Warning (level 3) C4622"
 title: "Compiler Warning (level 3) C4622"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 3) C4622"
+ms.date: 11/04/2016
 f1_keywords: ["C4622"]
 helpviewer_keywords: ["C4622"]
-ms.assetid: d3c879f0-4492-4f4b-b26d-230993f3a933
 ---
 # Compiler Warning (level 3) C4622
 
-Overwriting debug information formed during creation of the precompiled header in object file: 'file'
+> Overwriting debug information formed during creation of the precompiled header in object file: 'file'
+
+## Remarks
 
 CodeView information in the specified file was lost when it was compiled with the [/Yu](../../build/reference/yu-use-precompiled-header-file.md) (Use Precompiled Headers) option.
 

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-3-c4633.md b/docs/error-messages/compiler-warnings/compiler-warning-level-3-c4633.md
@@ -1,18 +1,21 @@
 ---
-description: "Learn more about: Compiler Warning (level 3) C4633"
 title: "Compiler Warning (level 3) C4633"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 3) C4633"
+ms.date: 11/04/2016
 f1_keywords: ["C4633"]
 helpviewer_keywords: ["C4633"]
-ms.assetid: 6d76f268-ba8c-448b-8e83-b903a18b583b
 ---
 # Compiler Warning (level 3) C4633
 
-XML document comment target: error:  reason
+> XML document comment target: error:  reason
+
+## Remarks
 
 A name passed to the [\<param>](../../build/reference/param-visual-cpp.md) tag was not found by the compiler.
 
-The following sample generates C4633:
+## Example
+
+The following example generates C4633:
 
 ```cpp
 // C4633.cpp