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Q120965: FIX: C1001: ‘e:\b_bld\c2\P2\main.c’, line 374 with /Zi Switch

Article: Q120965
Product(s): Microsoft C Compiler
Version(s): 2.0
Operating System(s): 
Keyword(s): 
Last Modified: 22-JUL-2001

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The information in this article applies to:

- Microsoft C/C++ Compiler (CL.EXE), included with:
   - *EDITOR Please do not choose this product*Microsoft Visual C++ 32-bit Edition* use 241, 265, 225, version 2.0 
-------------------------------------------------------------------------------

SYMPTOMS
========

Compiling an application that uses a local temporary static union, as does the
sample code shown in the More Information section below, may cause the following
internal compiler error when built with debug information only:

  TEST.CPP(9) : fatal error C1001: INTERNAL COMPILER ERROR
  (compiler file 'e:\b_bld\c2\P2\main.c', line 374)
  Please choose the Technical Support command on the Visual C++ Help menu, or
  open the Technical Support help file for more information

TEST.CPP is the sample code file given in the More Information section below.

RESOLUTION
==========

Use either of these two workarounds:

- Remove the /Zi compiler option.

-or-

- Create an object to represent the local static union:

        static union { int z;} tmp;

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article. This problem was fixed in Visual C++, 32-bit Edition,
version 4.0.

MORE INFORMATION
================

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


  /* Compile options needed: /Zi
  */ 

  static union { int i; };
  static union { int k; };

  void local()
  {
     union { int x; };
     union { int y; };
     static union { int z; };
  }


Additional query words: 2.00 9.00

======================================================================
Keywords          :  
Technology        : kbVCsearch kbAudDeveloper kbCVCComp
Version           : :2.0
Issue type        : kbbug
Solution Type     : kbfix

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

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