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Microsoft KB Archive/102166

From BetaArchive Wiki

FIX: Incorrect Debugging Information for Nested Classes


1.00 | 1.00 WINDOWS | WINDOWS NT kbtool kbbuglist kbfixlist kbfasttip ---------------------------------------------------------------------- The information in this article applies to: - The Microsoft C/C++ Compiler (CL.EXE), included with: - Microsoft Visual C++ for Windows, version 1.0 - Microsoft Visual C++, 32-bit Edition, version 1.0 ---------------------------------------------------------------------- SYMPTOMS ======== An attempt to expand a local variable in the Local or Watch window may fail and display incorrect values. CAUSE ===== The data type of the local variable uses nested classes. RESOLUTION ========== To work around this problem, specify the /Z7 compiler option switch when you build the application. STATUS ====== Microsoft has confirmed this to be a problem in the C/C++ Compiler (CL.EXE) version 8.0 for Windows. This problem was corrected in C/C++ compiler version 8.0c, included in Visual C++ for Windows, version 1.5. MORE INFORMATION ================ When you debug the code example below in Visual C++ version 1.0, the local objects a and b refer to nested class C defined in class A when you expand the objects. This problem does not occur in Microsoft C/C++ version 7.0 for MS-DOS. Sample Code ----------- /* * Compiler options needed: /Zi /Od */ class A { public: class C { public: int *a; }; C *temp; }; class B { public: class C { public: float *a; }; C *temp; }; void main(void) { A a; B b; // b refers to nested class C defined in class A } Additional reference words: 1.00 8.00 KBCategory: kbtool kbfixlist kbfasttip kbbuglist KBSubcategory: CPPIss

Keywords : kb16bitonly kbCompiler kbCPPonly kbVC
Issue type :
Technology : kbVCsearch kbAudDeveloper kbvc100 kbCVCComp

Last Reviewed: May 5, 2001
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