FIX: printf Does Not Recognize "\n\r" when Using Conversion

• The C Run-Time (CRT), included with:
  • Microsoft Visual C++ for Windows, versions 1.0, 1.5
  • Microsoft Visual C++ 32-bit Edition, version 1.0

SYMPTOMS

If an explicit type-conversion syntax is used for the return value of printf(), printf() does not recognize the escape sequence \n\r in its format string.

The following macro prints "<string x>\n\r":

   #define PRINT(x) void( printf("%s\n\r", x ) ) 

RESOLUTION

To correct the error, use one of the following workarounds:

1. Use ASCII values for the line feed and carriage return. For example:

   
         #define PRINT(x)  void( printf("%s%c%c",x,10,13 ) ) 



-or-


2. Use explicit typecasting instead. For example:

   
         #define PRINT(x)  (void)( printf("%s\n\r",x ) ) 



-or-


3. Program without the conversion or casting if possible. For example:

   
         #define PRINT(x)  printf("%s\n\r", x ) 

STATUS

Microsoft has confirmed this to be a bug in the products listed at the beginning of this article. This problem was corrected in Visual C++ 32-bit Edition, version 2.0.

Additional query words: 1.00 1.50

Keywords : kbCRT kbVC
Version : winnt:
Platform : winnt
Issue type :