Q263600: BUG: Nested Class Does Not See typedef in the Enclosing Class

Article: Q263600
Product(s): Microsoft C Compiler
Version(s): 6.0
Operating System(s): 
Keyword(s): kbCompiler kbCPPonly kbVC600bug kbDSupport
Last Modified: 03-MAY-2001

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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 
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SYMPTOMS
========

According to the ANSI C++ Standard, a nested class should find a symbol in its
enclosing class's scope before it finds it in global scope. However, when the
code is compiled with Microsoft C++ compiler, the global scope is searched ahead
of the enclosing class's scope.

Please refer to the sample code in the "More Information" section for details.

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: /GX

  #include <iostream>
  using std::cout;
  using std::endl;

  struct Target
  {
    static void test()
    {
      cout <<
        "BUG: Nested class doesn't see typedef in the enclosing class."
      << endl;
    }
  };

  struct CorrectTarget
  {
    static void test()
    {
      cout <<
        "Good: Nested  class CORRECTLY finds 'Target' as typedef in the enclosing class."
      << endl;
    }
  };

  struct Tester
  {
    typedef CorrectTarget Target;

    struct Inner
    {
      static void test()
      {
        Target::test();
      }
    };
  };

  void main()
  {
    Tester::Inner::test();
  }

Program output: BUG: Nested class doesn't see typedef in the enclosing class.

Additional query words:

======================================================================
Keywords          : kbCompiler kbCPPonly kbVC600bug kbDSupport 
Technology        : kbVCsearch kbAudDeveloper kbCVCComp
Version           : :6.0
Issue type        : kbbug

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

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