MicrosoftDocs · Rageking8 · Aug 26, 2025 · Aug 26, 2025 · Aug 26, 2025 · Aug 26, 2025
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4122.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4122.md
@@ -1,14 +1,15 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4122"
 title: "Compiler Warning (level 1) C4122"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4122"
+ms.date: 11/04/2016
 f1_keywords: ["C4122"]
 helpviewer_keywords: ["C4122"]
-ms.assetid: 9a83eb0d-8708-42f7-988a-b0b6f2f646a0
 ---
 # Compiler Warning (level 1) C4122
 
-'function' : alloc_text applicable only to functions with C linkage
+> 'function' : alloc_text applicable only to functions with C linkage
+
+## Remarks
 
 The **alloc_text** pragma applies only to functions declared with **extern c**. It cannot be used with external C++ functions.
 

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4124.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4124.md
@@ -1,14 +1,15 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4124"
 title: "Compiler Warning (level 1) C4124"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4124"
+ms.date: 11/04/2016
 f1_keywords: ["C4124"]
 helpviewer_keywords: ["C4124"]
-ms.assetid: c08c3a65-9584-47a1-a147-44f00c4b230e
 ---
 # Compiler Warning (level 1) C4124
 
-__fastcall with stack checking is inefficient
+> __fastcall with stack checking is inefficient
+
+## Remarks
 
 The **`__fastcall`** keyword was used with stack checking enabled.
 

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4129.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4129.md
@@ -1,22 +1,25 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4129"
 title: "Compiler Warning (level 1) C4129"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4129"
+ms.date: 11/04/2016
 f1_keywords: ["C4129"]
 helpviewer_keywords: ["C4129"]
-ms.assetid: a4190c64-4bfb-48fd-8e98-52720bc0d878
 ---
 # Compiler Warning (level 1) C4129
 
-'character' : unrecognized character escape sequence
+> 'character' : unrecognized character escape sequence
+
+## Remarks
 
 The `character` following a backslash (\\) in a character or string constant is not recognized as a valid escape sequence. The backslash is ignored and not printed. The character following the backslash is printed.
 
 To print a single backslash, specify a double backslash (\\\\).
 
 The C++ standard, in section 2.13.2 discusses escape sequences.
 
-The following sample generates C4129:
+## Example
+
+The following example generates C4129:
 
 ```cpp
 // C4129.cpp

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4138.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4138.md
@@ -1,19 +1,22 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4138"
 title: "Compiler Warning (level 1) C4138"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4138"
+ms.date: 11/04/2016
 f1_keywords: ["C4138"]
 helpviewer_keywords: ["C4138"]
-ms.assetid: 65ebf929-bba0-4237-923b-c1b66adfe17d
 ---
 # Compiler Warning (level 1) C4138
 
-'*/' found outside of comment
+> '*/' found outside of comment
+
+## Remarks
 
 The closing-comment delimiter is not preceded by an opening-comment delimiter. The compiler assumes a space between the asterisk (<strong>\*</strong>) and the forward slash (/).
 
 ## Example
 
+The following example generates C4138:
+
 ```cpp
 // C4138a.cpp
 // compile with: /W1

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4141.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4141.md
@@ -1,7 +1,7 @@
 ---
-description: "Learn more about: Compiler Warning (level 1, Error) C4141"
 title: "Compiler Warning (level 1, Error) C4141"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1, Error) C4141"
+ms.date: 11/04/2016
 f1_keywords: ["C4141"]
 helpviewer_keywords: ["C4141"]
 ---
@@ -11,6 +11,8 @@ helpviewer_keywords: ["C4141"]
 
 ## Example
 
+The following example generates C4141:
+
 ```cpp
 // C4141.cpp
 // compile with: /W1 /LD

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4142.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4142.md
@@ -1,14 +1,15 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4142"
 title: "Compiler Warning (level 1) C4142"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4142"
+ms.date: 11/04/2016
 f1_keywords: ["C4142"]
 helpviewer_keywords: ["C4142"]
-ms.assetid: 1fdfc3dc-60a2-4f00-b133-20e400f9b7a6
 ---
 # Compiler Warning (level 1) C4142
 
-benign redefinition of type
+> benign redefinition of type
+
+## Remarks
 
 A type is redefined in a manner that has no effect on the generated code.
 
@@ -18,7 +19,9 @@ To fix by checking the following possible causes:
 
 - A type defined with the **`typedef`** command is redefined using different syntax.
 
-The following sample generates C4142:
+## Example
+
+The following example generates C4142:
 
 ```c
 // C4142.c

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4143.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4143.md
@@ -1,13 +1,14 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4143"
 title: "Compiler Warning (level 1) C4143"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4143"
+ms.date: 11/04/2016
 f1_keywords: ["C4143"]
 helpviewer_keywords: ["same_seg", "C4143"]
-ms.assetid: ef0bd19f-d169-4034-8710-b22971bd642d
 ---
 # Compiler Warning (level 1) C4143
 
-pragma 'same_seg' not supported; use __based allocation
+> pragma 'same_seg' not supported; use __based allocation
+
+## Remarks
 
 The **#pragma same_seg** is no longer supported. Use the [__based](../../cpp/based-pointers-cpp.md) keyword instead.
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4144.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4144.md
@@ -1,16 +1,21 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4144"
 title: "Compiler Warning (level 1) C4144"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4144"
+ms.date: 11/04/2016
 f1_keywords: ["C4144"]
 helpviewer_keywords: ["C4144"]
-ms.assetid: a37b445d-dbc6-43b4-8d95-ffd0e4225464
 ---
 # Compiler Warning (level 1) C4144
 
-'expression' : relational expression as switch expression
+> 'expression' : relational expression as switch expression
+
+## Remarks
+
+The specified relational expression was used as the control expression of a [switch](../../cpp/switch-statement-cpp.md) statement. The associated case statements will be offered Boolean values.
+
+## Example
 
-The specified relational expression was used as the control expression of a [switch](../../cpp/switch-statement-cpp.md) statement. The associated case statements will be offered Boolean values. The following sample generates C4144:
+The following example generates C4144:
 
 ```cpp
 // C4144.cpp

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4145.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4145.md
@@ -1,20 +1,21 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4145"
 title: "Compiler Warning (level 1) C4145"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4145"
+ms.date: 11/04/2016
 f1_keywords: ["C4145"]
 helpviewer_keywords: ["C4145"]
-ms.assetid: 0440777a-cca2-4159-aff5-e67a254ad64a
 ---
 # Compiler Warning (level 1) C4145
 
-'expression1' : relational expression as switch expression; possible confusion with 'expression2'
+> 'expression1' : relational expression as switch expression; possible confusion with 'expression2'
+
+## Remarks
 
 A **`switch`** statement uses a relational expression as its control expression, which results in a Boolean value for the **`case`** statements. Did you mean *expression2*?
 
 ## Example
 
-The following sample generates C4145:
+The following example generates C4145:
 
 ```cpp
 // C4145.cpp

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4153.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4153.md
@@ -1,13 +1,14 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4153"
 title: "Compiler Warning (level 1) C4153"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4153"
+ms.date: 11/04/2016
 f1_keywords: ["C4153"]
 helpviewer_keywords: ["C4153"]
-ms.assetid: 37a15754-9dba-470b-adda-c4b888064b3e
 ---
 # Compiler Warning (level 1) C4153
 
-function/data pointer conversion in expression
+> function/data pointer conversion in expression
+
+## Remarks
 
 A function pointer is converted to or from a data pointer. This conversion is allowed under Microsoft extensions (/Ze) but not under ANSI C.
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4154.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4154.md
@@ -1,19 +1,22 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4154"
 title: "Compiler Warning (level 1) C4154"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4154"
+ms.date: 11/04/2016
 f1_keywords: ["C4154"]
 helpviewer_keywords: ["C4154"]
-ms.assetid: 4511afeb-e893-4cc6-83b6-4c7a0477f76b
 ---
 # Compiler Warning (level 1) C4154
 
-deletion of an array expression; conversion to pointer supplied
+> deletion of an array expression; conversion to pointer supplied
+
+## Remarks
 
 You cannot use **`delete`** on an array, so the compiler converts the array to a pointer.
 
 ## Example
 
+The following example generates C4154:
+
 ```cpp
 // C4154.cpp
 // compile with: /c /W1

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4155.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4155.md
@@ -1,20 +1,21 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4155"
 title: "Compiler Warning (level 1) C4155"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4155"
+ms.date: 11/04/2016
 f1_keywords: ["C4155"]
 helpviewer_keywords: ["C4155"]
-ms.assetid: ba233353-09e3-4195-8127-13a27ddd8d70
 ---
 # Compiler Warning (level 1) C4155
 
-deletion of an array expression without using the array form of 'delete'
+> deletion of an array expression without using the array form of 'delete'
+
+## Remarks
 
 The array form of **`delete`** should be used to delete an array. This warning occurs only under ANSI-compatibility (/Za).
 
 ## Example
 
-The following sample generates C4155:
+The following example generates C4155:
 
 ```cpp
 // C4155.cpp

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4157.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4157.md
@@ -1,13 +1,14 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4157"
 title: "Compiler Warning (level 1) C4157"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4157"
+ms.date: 11/04/2016
 f1_keywords: ["C4157"]
 helpviewer_keywords: ["C4157"]
-ms.assetid: 6dabc303-eba1-4a8e-a124-a6e1dc84f4bd
 ---
 # Compiler Warning (level 1) C4157
 
-pragma was ignored by C compiler
+> pragma was ignored by C compiler
+
+## Remarks
 
 Only the C++ compiler recognizes **init_seg()**.
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4158.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4158.md
@@ -1,13 +1,14 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4158"
 title: "Compiler Warning (level 1) C4158"
-ms.date: "11/04/2016"
+description: "Learn more about: Compiler Warning (level 1) C4158"
+ms.date: 11/04/2016
 f1_keywords: ["C4158"]
 helpviewer_keywords: ["C4158"]
-ms.assetid: 6513c6b9-6772-4849-b96c-5bb093d54de6
 ---
 # Compiler Warning (level 1) C4158
 
 > assuming #pragma pointers_to_members(full_generality, inheritance)
 
+## Remarks
+
 A `#pragma pointers_to_members( single | multiple | virtual )` was issued without an accompanying `#pragma pointers_to_members(full_generality)`.
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4160.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4160.md
@@ -1,10 +1,9 @@
 ---
-description: "Learn more about: Compiler Warning (level 1) C4160"
 title: "Compiler Warning (level 1) C4160"
-ms.date: "08/27/2018"
+description: "Learn more about: Compiler Warning (level 1) C4160"
+ms.date: 08/27/2018
 f1_keywords: ["C4160"]
 helpviewer_keywords: ["C4160"]
-ms.assetid: a9610cb7-cac4-4a74-8b4e-049030ebb92b
 ---
 # Compiler Warning (level 1) C4160
 

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-2-c4146.md b/docs/error-messages/compiler-warnings/compiler-warning-level-2-c4146.md
@@ -1,6 +1,6 @@
 ---
-description: "Learn more about: Compiler warning (level 2) C4146"
 title: "Compiler warning (level 2) C4146"
+description: "Learn more about: Compiler warning (level 2) C4146"
 ms.date: 04/22/2025
 f1_keywords: ["C4146"]
 helpviewer_keywords: ["C4146"]
@@ -9,10 +9,10 @@ helpviewer_keywords: ["C4146"]
 
 > unary minus operator applied to unsigned type, result still unsigned
 
-Unsigned types only hold non-negative values. So unary minus (negation) usually doesn't make sense when applied to an unsigned type. Both the operand and the result are non-negative.
-
 ## Remarks
 
+Unsigned types only hold non-negative values. So unary minus (negation) usually doesn't make sense when applied to an unsigned type. Both the operand and the result are non-negative.
+
 When you express a negative integer literal, the **`-`** in front of the value is parsed as a [unary negation](../../cpp/unary-plus-and-negation-operators-plus-and.md) operator. The compiler applies the operator after it parses the numeric value. If the numeric value fits in the range of an unsigned integer type, but not the corresponding signed integer type, the compiler interprets the value as unsigned.
 
 This warning often occurs when you try to express the minimum **`int`** value, -2147483648, or the minimum **`long long`** value, -9223372036854775808. These values can't be written as -2147483648 or -9223372036854775808ll. The reason is because the compiler processes the expression in two stages: first, it parses the numeric value, then it applies the negation operator. For example, when the compiler parses -2147483648, it follows these steps:
@@ -28,7 +28,7 @@ The [`/sdl` (Enable Additional Security Checks)](../../build/reference/sdl-enabl
 
 ## Example
 
-The following sample demonstrates the unexpected behavior that can happen when the compiler generates warning C4146:
+The following example demonstrates the unexpected behavior that can happen when the compiler generates warning C4146:
 
 ```cpp
 // C4146.cpp

diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-2-c4150.md b/docs/error-messages/compiler-warnings/compiler-warning-level-2-c4150.md
@@ -1,5 +1,5 @@
 ---
-title: Compiler warning (level 2) C4150
+title: "Compiler warning (level 2) C4150"
 description: "Learn more about: Compiler Warning (level 2) C4150"
 ms.date: 11/04/2016
 f1_keywords: ["C4150"]
@@ -9,11 +9,13 @@ helpviewer_keywords: ["C4150"]
 
 > deletion of pointer to incomplete type 'type'; no destructor called
 
+## Remarks
+
 The `delete` operator is called to delete a type that was declared but not defined. The compiler can't find the destructor to call because the definition isn't in the same translation unit as the `delete`.
 
 ## Example
 
-The following sample generates C4150 by declaring but not defining `class IncClass`:
+The following example generates C4150 by declaring but not defining `class IncClass`:
 
 ```cpp
 // compile with: /W2