Add language identifiers

docs/error-messages/compiler-warnings/compiler-warning-level-3-c4823.md

@@ -17,7 +17,7 @@ You can also manually unpin the object and ignore the warning.
 
 The following sample generates C4823.
 
-```
+```cpp
 // C4823.cpp
 // compile with: /clr /W3 /EHa-
 using namespace System;

docs/error-messages/compiler-warnings/compiler-warning-level-3-c4995.md

@@ -15,7 +15,7 @@ The compiler encountered a function that was marked with pragma [deprecated](../
 
 The following sample generates C4995:
 
-```
+```cpp
 // C4995.cpp
 // compile with: /W3
 #include <stdio.h>

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4001.md

@@ -19,7 +19,7 @@ Under strict ANSI compatibility ([/Za](../../build/reference/za-ze-disable-langu
 
 To disable warning, uncomment [#pragma warning(disable:4001)](../../preprocessor/warning.md).
 
-```
+```cpp
 // C4001.cpp
 // compile with: /W4 /Za /TC
 // #pragma warning(disable:4001)

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4019.md

@@ -15,7 +15,7 @@ This warning may be fixed if you remove the extra semicolon.
 
 ## Example
 
-```
+```c
 // C4019.c
 // compile with: /Za /W4
 #define declint( varname ) int varname;

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4032.md

@@ -15,7 +15,7 @@ This is an error in ANSI C ([/Za](../../build/reference/za-ze-disable-language-e
 
 ## Example
 
-```
+```c
 // C4032.c
 // compile with: /W4
 void func();

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4100.md

@@ -15,7 +15,7 @@ C4100 can also be issued when code calls a destructor on a otherwise unreference
 
 The following sample generates C4100:
 
-```
+```cpp
 // C4100.cpp
 // compile with: /W4
 void func(int i) {   // C4100, delete the unreferenced parameter to

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4121.md

@@ -11,7 +11,7 @@ ms.assetid: 8c5b85c9-2543-426b-88bc-319c50158c7e
 
 The compiler added padding to align a structure member on the packing boundary but the packing value is less than the member's size. For example, the following code snippet produces C4121:
 
-```
+```cpp
 // C4121.cpp
 // compile with: /W4 /c
 #pragma pack(2)

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4125.md

@@ -13,7 +13,7 @@ The compiler evaluates the octal number without the decimal digit and assumes th
 
 ## Example
 
-```
+```cpp
 // C4125a.cpp
 // compile with: /W4
 char array1[] = "\709"; // C4125
@@ -24,7 +24,7 @@ int main()
 
 If the digit 9 is intended as a character, correct the example as follows:
 
-```
+```cpp
 // C4125b.cpp
 // compile with: /W4
 char array[] = "\0709";  // C4125 String containing "89"

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4130.md

@@ -13,7 +13,7 @@ Using the operator with the address of a string literal produces unexpected code
 
 The following sample generates C4130:
 
-```
+```cpp
 // C4130.cpp
 // compile with: /W4
 int main()

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4131.md

@@ -15,7 +15,7 @@ Old-style function declarations should be converted to prototype form.
 
 The following example shows an old-style function declaration:
 
-```
+```c
 // C4131.c
 // compile with: /W4 /c
 void addrec( name, id ) // C4131 expected
@@ -26,7 +26,7 @@ int id;
 
 The following example shows a prototype form:
 
-```
+```c
 void addrec( char *name, int id )
 { }
 ```

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4189.md

@@ -13,7 +13,7 @@ A variable is declared and initialized but not used.
 
 The following sample generates C4189:
 
-```
+```cpp
 // C4189.cpp
 // compile with: /W4
 int main() {

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4201.md

@@ -13,7 +13,7 @@ Under Microsoft extensions (/Ze), you can specify a structure without a declarat
 
 ## Example
 
-```
+```cpp
 // C4201.cpp
 // compile with: /W4
 struct S

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4202.md

@@ -13,7 +13,7 @@ An old-style function definition contains variable arguments. These definitions
 
 ## Example
 
-```
+```c
 // C4202.c
 // compile with: /W4
 void func( a, b, ...)   // C4202

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4204.md

@@ -13,7 +13,7 @@ With Microsoft extensions (/Ze), you can initialize aggregate types (arrays, str
 
 ## Example
 
-```
+```c
 // C4204.c
 // compile with: /W4
 int func1()

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4205.md

@@ -13,7 +13,7 @@ With Microsoft extensions (/Ze), **static** functions can be declared inside ano
 
 ## Example
 
-```
+```c
 // C4205.c
 // compile with: /W4
 void func1()

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4207.md

@@ -13,7 +13,7 @@ With Microsoft extensions (/Ze), you can initialize an unsized array of `char` u
 
 ## Example
 
-```
+```c
 // C4207.c
 // compile with: /W4
 char c[] = { 'a', 'b', "cdefg" }; // C4207

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4208.md

@@ -11,7 +11,7 @@ nonstandard extension used : delete [exp] - exp evaluated but ignored
 
 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.
 
-```
+```cpp
 // C4208.cpp
 // compile with: /W4
 int main()

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4210.md

@@ -11,7 +11,7 @@ nonstandard extension used : function given file scope
 
 With the default Microsoft extensions ([/Ze](../../build/reference/za-ze-disable-language-extensions.md)), function declarations have file scope.
 
-```
+```c
 // C4210.c
 // compile with: /W4 /c
 void func1()

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4211.md

@@ -13,7 +13,7 @@ With the default Microsoft extensions (/Ze), you can redefine an `extern` identi
 
 ## Example
 
-```
+```c
 // C4211.c
 // compile with: /W4
 extern int i;

docs/error-messages/compiler-warnings/compiler-warning-level-4-c4212.md

@@ -13,7 +13,7 @@ The function prototype has a variable number of arguments. The function definiti
 
 The following sample generates C4212:
 
-```
+```c
 // C4212.c
 // compile with: /W4 /Ze /c
 void f(int , ...);