Updated C6276

UNICODE/ANSI -> wide/narrow

Author: MugBergerFries

docs/code-quality/c6276.md

@@ -11,17 +11,17 @@ ms.assetid: 88f288da-da81-4d32-ab0f-be9d01a2606a
 
 > Cast between semantically different string types: char* to wchar_t\*. Use of invalid string can lead to undefined behavior.
 
-This warning indicates a potentially incorrect cast from an ANSI string (`char_t*`) to a UNICODE string (`wchar_t *`).
+This warning indicates a potentially incorrect cast from an narrow character string (`char_t*`) to a wide character string (`wchar_t *`).
 
 ## Remarks
 
-Because UNICODE strings have a character size of 2 bytes, this cast might yield strings that aren't correctly terminated. Using such strings with the `wcs*` library of functions could cause buffer overruns and access violations.
+Because the Microsoft compiler implements wide strings with a character size of 2 bytes, casting from a narrow string might produce strings that aren't correctly terminated. If you use such strings with the `wcs*` functions in the runtime library, they could cause buffer overruns and access violations.
 
  Code analysis name: CHAR_TO_WCHAR_CAST
 
 ## Example
 
-The following code generates this warning. This issue stems from the improper casting of the character 'a' (1 byte) to a Unicode character (2 bytes):
+The following code generates this warning. It's caused by an improper cast of the narrow string `a` (2 bytes, one for the 'a' and one for the null terminator) to a wide string (a 2-byte wide character 'a' with no null terminator):
 
 ```cpp
 #include <windows.h>
@@ -35,7 +35,7 @@ void f()
 }
 ```
 
-The following code corrects this warning by appending the letter L to represent the ASCII character as a wide character:
+The following code corrects this warning. It removes the problem cast and adds an `L` prefix to the string to define it as a properly terminated wide character string:
 
 ```cpp
 #include <windows.h>