Microsoft KB Archive/171543

= FIX: _getmbp CRT Function Does Not Return Correct Value =

Article ID: 171543

Article Last Modified on 10/17/2003

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APPLIES TO


 * The C Run-Time (CRT), when used with:
 * Microsoft Visual Studio 97 Service Pack 3

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This article was previously published under Q171543



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:

170365 INFO: Visual Studio 97 Service Packs - What, Where, and Why



MORE INFORMATION
The following sample program demonstrates the bug: //sample.cpp /* Compiler options: none */
 * 1) include 
 * 2) include 

main { printf("The return value from _getmbcp is= %d \n", _getmbcp); return 0; }

Keywords: kbbug kbfix kbcrt kbvs97sp1fix kbvs97sp2fix KB171543

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