Q128213: FIX: C1001 Internal Compiler Error in MAIN.C File Line 374

Article: Q128213
Product(s): Microsoft C Compiler
Version(s): 2.0,2.1,2.2
Operating System(s): 
Keyword(s): kbCompiler kbCPPonly kbVCkbbuglist kbfixlist
Last Modified: 12-DEC-2001

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

- Microsoft Visual C++, 32-bit Editions, versions 2.0, 2.1, 2.2 
-------------------------------------------------------------------------------

SYMPTOMS
========

Defining a static member function together with a user-defined class destructor
in a class that is used only as a return type of a member function in another
class may cause the Microsoft C++ compiler version 9.0 to generate the following
compiler error:

  fatal error C1001: INTERNAL COMPILER ERROR
  (compiler file 'd:\b_bld\c2.m2\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

The sample code in the More Information section below demonstrates this problem.

RESOLUTION
==========

To work around the problem, use one of the following suggestions:

- Instead of using the chain notation to call the static member function, break
  the statement into two statements. For example,

        b.GetClassA().problem(10);     // error

        a = b.GetClassA();             // work-around
        a.problem(10);

  where a is an instance of class A, b is an instance of class B based on the
  sample code below.

-or-

- Define the static member function as a non-static member function.

-or-

- Instead of returning object A for function GetClassA() in the following
  sample code, return a reference to A.

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 4.0.

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

The sample code below can be used to generate the C1001 error.

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

  /* Compile options needed: none
  */ 

  class A
  {
    public:
    ~A() {}
    static void problem(int a) {}
  };

  class B
  {
    public:
    A GetClassA();
  };

  void main()
  {
    B b;
    b.GetClassA().problem(10);
  }

Additional query words: 2.00 2.10 2.20 9.00 9.10

======================================================================
Keywords          : kbCompiler kbCPPonly kbVC kbbuglist kbfixlist
Technology        : kbVCsearch kbAudDeveloper kbVC220 kbVC200 kbVC210 kbVC32bitSearch
Version           : :2.0,2.1,2.2
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 1986-2002.