DOCUMENT:Q263589 03-MAY-2001 [visualc] TITLE :BUG: Pointer to Member Allows Non-const Method Call on const Obj PRODUCT :Microsoft C Compiler PROD/VER:winnt:6.0 OPER/SYS: KEYWORDS:kbCompiler kbCPPonly kbVC600bug ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - The C/C++ Compiler (CL.EXE), included with: - Microsoft Visual C++, 32-bit Enterprise Edition, version 6.0 - Microsoft Visual C++, 32-bit Professional Edition, version 6.0 - Microsoft Visual C++, 32-bit Learning Edition, version 6.0 ------------------------------------------------------------------------------- SYMPTOMS ======== No error or warning message is generated if you try to call a non-const member function on a const class object by using a member pointer. STATUS ====== Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. MORE INFORMATION ================ Steps to Reproduce Behavior --------------------------- The following sample code demonstrates the bug: //test.cpp //compiler option needed: none class A { int m_val; public: A(int i=0) : m_val(i) {} void Add(int val) { m_val+=val; } }; int main() { void(A::*MFptr)(int) = &A::Add; const A ca; //const object (ca.*MFptr)(5); //no error here return 0; } Additional query words: ====================================================================== Keywords : kbCompiler kbCPPonly kbVC600bug Technology : kbVCsearch kbAudDeveloper kbCVCComp Version : winnt:6.0 Issue type : kbbug ============================================================================= 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.