Add "Remarks" and "Example" headings for warning references in range [C4201, C4230]

Rageking8 · web-flow · commit 7a6e4301979e · 2025-08-27T16:29:17.000+08:00
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4215.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4215.md
@@ -10,8 +10,12 @@ ms.assetid: f2aab64d-1bab-4f75-95ee-89e1263047b1
 
 > nonstandard extension used : long float
 
+## Remarks
+
 The default Microsoft extensions (/Ze) treat **long float** as **`double`**. ANSI compatibility ([/Za](../../build/reference/za-ze-disable-language-extensions.md)) does not. Use **`double`** to maintain compatibility.
 
+## Example
+
 The following sample generates C4215:
 
 ```cpp
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4216.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4216.md
@@ -10,7 +10,13 @@ ms.assetid: 211079dc-59d0-42a7-801c-2ddab21d7232
 
 > nonstandard extension used : float long
 
-The default Microsoft extensions (/Ze) treat **float long** as **`double`**. ANSI compatibility ([/Za](../../build/reference/za-ze-disable-language-extensions.md)) does not. Use **`double`** to maintain compatibility. The following sample generates C4216:
+## Remarks
+
+The default Microsoft extensions (/Ze) treat **float long** as **`double`**. ANSI compatibility ([/Za](../../build/reference/za-ze-disable-language-extensions.md)) does not. Use **`double`** to maintain compatibility.
+
+## Example
+
+The following sample generates C4216:
 
 ```cpp
 // C4216.cpp
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4218.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4218.md
@@ -9,6 +9,8 @@ helpviewer_keywords: ["C4218"]
 
 > nonstandard extension used: must specify at least a storage class or a type
 
+## Remarks
+
 With the default Microsoft extensions (`/Ze`), you can declare a variable without specifying a type or storage class. The default type is **`int`**.
 
 ## Example
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4224.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4224.md
@@ -10,6 +10,8 @@ ms.assetid: 1531cae0-5040-49fd-b149-005bb5085391
 
 > nonstandard extension used : formal parameter 'identifier' was previously defined as a type
 
+## Remarks
+
 The identifier was previously used as a **`typedef`**. This causes a warning under ANSI compatibility ([/Za](../../build/reference/za-ze-disable-language-extensions.md)).
 
 ## Example
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4226.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4226.md
@@ -10,6 +10,8 @@ ms.assetid: 69d6bbde-1300-4e48-8a9c-3648c80ab441
 
 > nonstandard extension used : '*keyword*' is an obsolete keyword
 
+## Remarks
+
 The current version of Visual C++ does not use this keyword.
 
 This warning is automatically promoted to an error.
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4227.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4227.md
@@ -10,6 +10,8 @@ ms.assetid: 78f98374-c00b-4000-aefa-1b1c67b4666b
 
 > anachronism used : qualifiers on reference are ignored
 
+## Remarks
+
 Using qualifiers like **`const`** or **`volatile`** with C++ references is an outdated practice.
 
 ## Example
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4228.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4228.md
@@ -10,6 +10,8 @@ ms.assetid: 9301d660-d601-464e-83f5-7ed844a3c6dc
 
 > nonstandard extension used : qualifiers after comma in declarator list are ignored
 
+## Remarks
+
 Use of qualifiers like **`const`** or **`volatile`** after a comma when declaring variables is a Microsoft extension ([/Ze](../../build/reference/za-ze-disable-language-extensions.md)).
 
 ## Example
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4229.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4229.md
@@ -9,6 +9,8 @@ helpviewer_keywords: ["C4229"]
 
 > anachronism used: modifiers on data are ignored
 
+## Remarks
+
 Using a Microsoft modifier such as **`__cdecl`** on a data declaration is an outdated practice.
 
 ## Example
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4230.md b/docs/error-messages/compiler-warnings/compiler-warning-level-1-c4230.md
@@ -10,6 +10,8 @@ ms.assetid: a4be8729-74b6-44df-a5ea-e3f45aad0f8f
 
 > anachronism used : modifiers/qualifiers interspersed; qualifier ignored
 
+## Remarks
+
 Using a qualifier before a Microsoft modifier such as **`__cdecl`** is an outdated practice.
 
 ## Example
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4201.md b/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4201.md
@@ -10,6 +10,8 @@ ms.assetid: 6156f508-9393-4d77-9e73-1ec3e1c32d0d
 
 > nonstandard extension used : nameless struct/union
 
+## Remarks
+
 Under Microsoft extensions (/Ze), you can specify a structure without a declarator as members of another structure or union. These structures generate an error under ANSI compatibility ([/Za](../../build/reference/za-ze-disable-language-extensions.md)).
 
 ## Example
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4202.md b/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4202.md
@@ -10,6 +10,8 @@ ms.assetid: 253293aa-97a3-4878-a2e8-c6cc9e20b1cb
 
 > nonstandard extension used : '...': prototype parameter in name list illegal
 
+## Remarks
+
 An old-style function definition contains variable arguments. These definitions generate an error under ANSI compatibility ([/Za](../../build/reference/za-ze-disable-language-extensions.md)).
 
 ## Example
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4204.md b/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4204.md
@@ -10,6 +10,8 @@ ms.assetid: 298d2880-6737-448e-b711-15572d540200
 
 > nonstandard extension used : non-constant aggregate initializer
 
+## Remarks
+
 With Microsoft extensions (/Ze), you can initialize aggregate types (arrays, structures, unions, and classes) with values that are not constants.
 
 ## Example
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4205.md b/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4205.md
@@ -9,6 +9,8 @@ helpviewer_keywords: ["C4205"]
 
 > nonstandard extension used : static function declaration in function scope
 
+## Remarks
+
 With Microsoft extensions (/Ze), **`static`** functions can be declared inside another function. The function is given global scope.
 
 ## Example
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4206.md b/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4206.md
@@ -10,6 +10,8 @@ ms.assetid: 3df97812-3ed7-4003-9769-057acf97ce3c
 
 > nonstandard extension used : translation unit is empty
 
+## Remarks
+
 The file was empty after preprocessing.
 
 This extension can prevent your code from being portable to other compilers. It generates an error under ANSI compatibility ([/Za](../../build/reference/za-ze-disable-language-extensions.md)) and only applies to C source code.
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4207.md b/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4207.md
@@ -10,6 +10,8 @@ ms.assetid: f4e09e3e-ac87-4489-8e3f-c8f76b82e721
 
 > nonstandard extension used : extended initializer form
 
+## Remarks
+
 With Microsoft extensions (/Ze), you can initialize an unsized array of **`char`** using a string within braces.
 
 ## Example
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4208.md b/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4208.md
@@ -10,8 +10,12 @@ ms.assetid: 5cb0a36e-3fb5-422f-a5f9-e40b70776c27
 
 > nonstandard extension used : delete [exp] - exp evaluated but ignored
 
+## Remarks
+
 With Microsoft extensions (/Ze), you can delete an array using a value within brackets with the [delete operator](../../cpp/delete-operator-cpp.md). The value is ignored.
 
+## Example
+
 ```cpp
 // C4208.cpp
 // compile with: /W4
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4210.md b/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4210.md
@@ -10,8 +10,12 @@ ms.assetid: f8600adf-dfe2-4022-a37a-3d4997641dfd
 
 > nonstandard extension used : function given file scope
 
+## Remarks
+
 With the default Microsoft extensions ([/Ze](../../build/reference/za-ze-disable-language-extensions.md)), function declarations have file scope.
 
+## Example
+
 ```c
 // C4210.c
 // compile with: /W4 /c
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4211.md b/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4211.md
@@ -10,6 +10,8 @@ ms.assetid: 3eea3455-6faa-4cdb-8730-73db7026bd1f
 
 > nonstandard extension used : redefined extern to static
 
+## Remarks
+
 With the default Microsoft extensions (/Ze), you can redefine an **`extern`** identifier as **`static`**.
 
 ## Example
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4212.md b/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4212.md
@@ -10,8 +10,12 @@ ms.assetid: df781ea1-182d-4f9f-9a31-55b6ce80c711
 
 > nonstandard extension used : function declaration used ellipsis
 
+## Remarks
+
 The function prototype has a variable number of arguments. The function definition does not.
 
+## Example
+
 The following sample generates C4212:
 
 ```c
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4213.md b/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4213.md
@@ -10,6 +10,8 @@ ms.assetid: 59fc3f61-ebd2-499e-99d7-f57bec11eda1
 
 > nonstandard extension used : cast on l-value
 
+## Remarks
+
 With the default Microsoft extensions (/Ze), you can use casts on the left side of an assignment statement.
 
 ## Example
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4214.md b/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4214.md
@@ -10,6 +10,8 @@ ms.assetid: 9b8db279-1f12-4a6b-a923-2db22acd1947
 
 > nonstandard extension used : bit field types other than int
 
+## Remarks
+
 With the default Microsoft extensions (/Ze), bitfield structure members can be of any integer type.
 
 ## Example
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4220.md b/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4220.md
@@ -9,6 +9,8 @@ helpviewer_keywords: ["C4220"]
 
 > varargs matches remaining parameters
 
+## Remarks
+
 Under the default Microsoft extensions (/Ze), a pointer to a function matches a pointer to a function with similar, but variable, arguments.
 
 ## Example
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4221.md b/docs/error-messages/compiler-warnings/compiler-warning-level-4-c4221.md
@@ -10,6 +10,8 @@ ms.assetid: 8532bd68-54dc-4526-8597-f61dcb0a0129
 
 > nonstandard extension used : 'identifier' : cannot be initialized using address of automatic variable
 
+## Remarks
+
 With the default Microsoft extensions (/Ze), you can initialize an aggregate type (**array**, **`struct`**, or **`union`**) with the address of a local (automatic) variable.
 
 ## Example
diff --git a/docs/error-messages/compiler-warnings/compiler-warning-levels-1-and-4-c4223.md b/docs/error-messages/compiler-warnings/compiler-warning-levels-1-and-4-c4223.md
@@ -10,4 +10,6 @@ ms.assetid: 6fc44336-0250-4432-928b-fc5dbe7b7c1c
 
 > nonstandard extension used: non-lvalue array converted to pointer
 
+## Remarks
+
 In standard C, you can't convert a nonlvalue array to a pointer. With the default Microsoft extensions ([`/Ze`](../../build/reference/za-ze-disable-language-extensions.md)), you can.
