The information in this article applies to:
- The Microsoft C/C++ Compiler (CL.EXE) included with:
- Microsoft Visual C++, 32-bit Edition, versions 4.0, 4.1, 4.2
SYMPTOMS
Minimal Rebuild fails to detect the significance of access specifier
changes for enums that are declared inside a class. For example, if the
public definition of an enum in a class in a header file is changed to
private, minimal rebuild does not see the change as significant, and files
that depend on the header and the definition of the enum are not rebuilt.
The following message is displayed:
Generating Code...
Skipping... (no relevant changes detected)
RESOLUTION
Doing a rebuild all or disabling minimal rebuild forces a full compile and
correctly evaluates changes to the access specification of the enum. For
details, please see the "More Information" section of this article.
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 Visual C++
version 5.0.
MORE INFORMATION
Steps to Recreate Problem
- Create a default MFC application. On the File menu, click New, and then
click Project Workspace. Name it Test, and select the default for all of
the dialog boxes that follow.
- In the main header file for the application, before the first
public: in the application's class declaration, add the following enum
definitions:
class CMyTestApp : public CWinApp
{
public: //add these 3 lines
enum e1 {E1,E2}; //to the header file Test.h
enum {UE1, UE2}; //
public:
CMyTestApp();
- In the constructor of CAboutDlg, add references to the enums:
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
int i= CMy3209App::UE1; //Add these 2 lines
CMy3209App::e1 e = CMy3209App::E2; //to Test.cpp
}
- Check to ensure that minimal rebuild is enabled. On the Build menu,
click Settings, and then click C/C++ and category Customize. Build the
application.
- Comment out the first public: in the application's class declaration:
// public: //add these 3 lines
- Build the appplication again (not rebuild all). There are no error
messages.
- Rebuild All. The following errors are generated:
Test.cpp(129) : error C2248: 'UE1' : cannot access private
enumerator declared in class 'CMyTestApp'
Test.cpp(130) : error C2248: 'e1' : cannot access private enum
declared in class 'CMyTestApp'
Test.cpp(130) : error C2248: 'E2' : cannot access private enumerator
declared in class 'CMyTestApp'
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