DOCUMENT:Q104638  22-JUL-2001  [visualc]
TITLE   :FIX: CFile::SetStatus Throws Exception When Setting Time
PRODUCT :Microsoft C Compiler
PROD/VER:1.0
OPER/SYS:
KEYWORDS:kbFileIO kbMFC kbVC

======================================================================
-------------------------------------------------------------------------------
The information in this article applies to:

 - The Microsoft Foundation Classes (MFC), included with:
    - Microsoft Visual C++, 32-bit Editions, version 1.0 
-------------------------------------------------------------------------------

SYMPTOMS
========

An attempt to set the status of a file using the function CFile::SetStatus
results in a CFileException. If you do not have an exception handler defined,
the result will depend on what the target type for the application is:

 - If it is a Win32-based application, a modal dialog box will pop up that says
   the command failed.

 - If running a console application, you will see output similar to:

   CFile exception: generic, OS error information = 1812 Warning: Throwing an
   Exception of type CFileException Error: Un-caught Exception (CFileException)
   AfxTerminate called AfxAbort called

   abnormal program termination

CAUSE
=====

This behavior occurs whenever the CFileStatus member m_mtime is nonzero. There
is a coding problem that incorrectly throws an exception when updating the file
time.

The following console application duplicates this error:

      /* Build as a console application using
      ** Microsoft Foundation Classes
      ** Be sure that TEMP.DAT file exists in the same directory.
      */ 
      #include <afx.h>
      CFileStatus fs;
      void main(void) {
        CFile::GetStatus("TEMP.DAT",fs);
        CFile::SetStatus("TEMP.DAT",fs);
      }

RESOLUTION
==========

To work around this problem, update the Microsoft Foundation Class (MFC) library
files by making a modification to the MFC source file FILEST.CPP. Remove the
semicolon from the end of the "if" statement in line 134:

Change the following:

      if (!SystemTimeToFileTime((LPSYSTEMTIME)&sysTime, pFileTime));

to the following:

      if (!SystemTimeToFileTime((LPSYSTEMTIME)&sysTime, pFileTime))

You must then rebuild the MFC libraries. For more information on building these
library files, refer to:

 - Appendix B of the online "Class Library User's Guide"

-or-

 - The README.TXT file in the MSVC\MFC\SRC directory

Here are two ways to build a debug and non-debug version of the MFC Library for
Windows NT:

Run the NMAKE command from the \MSVCNT\MFC\SRC directory.

The debug version:

      NMAKE MODEL=N TARGET=W DEBUG=1 CODEVIEW=2

The release version:

      NMAKE MODEL=N TARGET=W DEBUG=0

STATUS
======

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

Additional query words:

======================================================================
Keywords          : kbFileIO kbMFC kbVC 
Technology        : kbAudDeveloper kbMFC
Version           : 1.0
Issue type        : kbbug
Solution Type     : kbfix

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.  MICROSOFT DISCLAIMS
ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  IN NO
EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.  SOME STATES DO NOT ALLOW THE EXCLUSION
OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
SO THE FOREGOING LIMITATION MAY NOT APPLY.

Copyright Microsoft Corporation 2001.