Article: Q171543
Product(s): Microsoft C Compiler
Version(s): WINNT:5.0sp1,5.0sp2,97,97sp1,97sp2
Operating System(s):
Keyword(s): kbCRT kbVC500bug kbVS97bug kbVS97sp1bug kbVS97sp1fix kbVS97sp2bug kbVS97sp2fix
Last Modified: 17-JUL-2001
-------------------------------------------------------------------------------
The information in this article applies to:
- The C Run-Time (CRT), included with:
- Microsoft Visual C++, 32-bit Enterprise Edition, version 5.0sp1
- Microsoft Visual C++, 32-bit Professional Edition, version 5.0sp1
- Microsoft Visual C++, 32-bit Enterprise Edition, version 5.0sp2
- Microsoft Visual C++, 32-bit Professional Edition, version 5.0sp2
- Microsoft Visual Studio versions 97, 97sp1, 97sp2
-------------------------------------------------------------------------------
SYMPTOMS
========
The C Run-time (CRT) Library function _getmbcp is supposed to return 0 if a
single-byte code page is in use. However, this is not true with the CRT Library
shipped with Visual C++ 5.0 in Visual Studio 97 Service Pack 1 and Service Pack
2. The function returns the current code page value irrespective of whether it
is a single byte or multi byte code page. This behavior breaks existing programs
that were using this call primarily to query whether a single-byte code page is
active.
STATUS
======
Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article. This bug has been fixed in Visual Studio 97 Service
Pack 3.
For additional information about , please click the article number(s) below to
view the article(s) in the Microsoft Knowledge Base:
Q170365 INFO: Visual Studio 97 Service Packs - What, Where, and Why
MORE INFORMATION
================
The following sample program demonstrates the bug:
//sample.cpp
/* Compiler options: none */
#include <mbctype.h>
#include <stdio.h>
main()
{
printf("The return value from _getmbcp is= %d \n", _getmbcp());
return 0;
}
Additional query words:
======================================================================
Keywords : kbCRT kbVC500bug kbVS97bug kbVS97sp1bug kbVS97sp1fix kbVS97sp2bug kbVS97sp2fix
Technology : kbVCsearch kbAudDeveloper kbCRT
Version : WINNT:5.0sp1,5.0sp2,97,97sp1,97sp2
Issue type : kbbug
Solution Type : kbfix
=============================================================================