DOCUMENT:Q167348  13-MAY-2001  [visualc]
TITLE   :FIX: Non-const Member Function Call Via const Object Allowed
PRODUCT :Microsoft C Compiler
PROD/VER:winnt:4.0,4.1,4.2,5.0
OPER/SYS:
KEYWORDS:kbcode kbVC400bug kbVC410bug kbVC420bug kbVC500bug kbVC600fix

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The information in this article applies to:

 - Microsoft Visual C++, versions 4.0, 4.1 
 - Microsoft Visual C++, 32-bit Enterprise Edition, versions 4.2, 5.0 
 - Microsoft Visual C++, 32-bit Professional Edition, versions 4.2, 5.0 
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SYMPTOMS
========

A compiler error is not generated when a non-const member function is called via
a temporary const object.

STATUS
======

Microsoft has confirmed this to be a problem in the Microsoft products that are
listed at the beginning of this article.This problem was corrected in Microsoft
Visual C++ version 6.0.

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

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

      /* Compile Options Needed: None */ 
      class myClass
      {
      public:
        const myClass f();
        const myClass g();
      };

      int main( )
      {
        myClass mc;

        mc.f().g();     // The return value of f() is const, but g()
                        // is not a const member function. Therefore,
                        // an error should be generated.
        return 0;

      }

Additional query words:

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Keywords          : kbcode kbVC400bug kbVC410bug kbVC420bug kbVC500bug kbVC600fix 
Technology        : kbVCsearch kbVC400 kbAudDeveloper kbVC410 kbVC420 kbVC500 kbVC32bitSearch kbVC500Search
Version           : winnt:4.0,4.1,4.2,5.0
Issue type        : kbbug
Solution Type     : kbfix

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Copyright Microsoft Corporation 2001.