BUG: Error Using _ttoi64 with Non-Unicode Applications

 Last reviewed: May 12, 1997
Article ID: Q168433
The information in this article applies to:
  • Microsoft Visual C++, 32-bit Editions, version 5.0

SYMPTOMS

_ttoi64 is incorrectly defined in TCHAR.H in Visual C/C++ 5.0.

RESOLUTION

Undefine _ttoi64 and redefine it correctly. For the complete solution see the MORE INFORMATION section of this article.

STATUS

Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. We are researching this bug and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

_ttoi64 is a define that substitutes _atoi64 (if _UNICODE is not defined ) or _wtoi64 if _UNICODE is defined. On line 481 of TCHAR.H is the following: 

   #define _ttoi64     atoi64
this should be: 

   #define _ttoi64     _atoi64
You may add the following code to your source file to correct the problem: 

   // _ttoi64 is incorrectly defined in TCHAR.H, so you need to undefine
   // it and redefine it correctly to avoid a compile error when
   // building a non-Unicode version of your application.
   
      #ifdef _UNICODE
        #ifdef  _ttoi64
          #undef  _ttoi64
          #define _ttoi64 _wtoi64
        #endif
      #else
        #ifdef  _ttoi64
          #undef  _ttoi64
          #define _ttoi64 _atoi64
        #endif
      #endif

Keywords : vcbuglist500 kbbuglist
Version : 5.0
Platform : NT WINDOWS
Issue type : kbbug

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Last reviewed: May 12, 1997
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