KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q98592: INFO: /Zg Not Designed for Use with .CPP or .CXX Files

Article: Q98592
Product(s): Microsoft C Compiler
Version(s): 1.0,1.5,1.51,1.52,2.0,2.1,4.0,7.0
Operating System(s): 
Keyword(s): kbCompiler kbCPPonly kbVC
Last Modified: 29-NOV-2001

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

- Microsoft C/C++ for MS-DOS, version 7.0 
- Microsoft Visual C++ for Windows, 16-bit edition, versions 1.0, 1.5, 1.51, 1.52 
- Microsoft Visual C++, 32-bit Editions, versions 1.0, 2.0, 2.1, 4.0 
-------------------------------------------------------------------------------

SUMMARY
=======

If you specify the /Zg compiler option switch when compiling a file with the
.CPP or .CXX file extension, the compiler may generate a large number of
function prototypes. If the number of prototypes is very large, a null pointer
assignment, run-time overflow, or other error can occur. This behavior varies
depending on the amount of memory available to the compiler.

The /Zg option is not designed for use with .CPP or .CXX files. It is designed to
generate function prototypes only for .C files.

Sample Code
-----------

     /*
      * Compile options needed: /Zg
      */ 

     #include <iostream.h>

     void main()
     {
        cout << "Hello out there";
     }

REFERENCES
==========

For an example of the behavior described in this article, please see the
following article in the Microsoft Knowledge Base:

  Q122042 BUG: Fatal Error C1001 Using /Zg with Large C++ Header Files

Additional query words: 8.00 8.00c 9.00 9.10

======================================================================
Keywords          : kbCompiler kbCPPonly kbVC 
Technology        : kbVCsearch kbVC400 kbAudDeveloper kbZNotKeyword8 kbvc150 kbvc100 kbZNotKeyword3 kbCVC700DOS kbVC151 kbVC200 kbVC210 kbVC32bitSearch kbVC16bitSearch kbVC152
Version           : :1.0,1.5,1.51,1.52,2.0,2.1,4.0,7.0
Issue type        : kbinfo

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

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.