[Bug c++/50097] New: Private base class enumeration

[Bug c++/50097] New: Private base class enumeration

[wolfgang.roehrl@gi-de.com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50097

             Bug #: 50097
           Summary: Private base class enumeration
    Classification: Unclassified
           Product: gcc
           Version: 4.5.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: wolfgang.roehrl@gi-de.com


Hi all,

I would like to post a bug report for the GNU C/C++ compiler version 4.5.2
(powerpc-rtems4.11).

We use the compiler to generate code for a PowerPC processor.

The compiler is invoked with the following options:

ccppc -c -x c++ -ansi -Wall -Werror -g -mcpu=8540 -fverbose-asm -mbig
      -mfloat-gprs=double -mspe -mabi=spe -meabi -msdata -fno-common
      -mmultiple -mno-string -misel -mstrict-align -fgcse-sm
      -fno-rename-registers -fno-section-anchors -G 8 -Os
      -fno-exceptions -fno-rtti
      -I<some include paths>
      -D<some #define's>
      X.CPP -oX.O

// file X.CPP

class X
{
    enum E { E1, E2 };
public:
    void f1 (E);
};

template <typename T_>
struct Y : private X
{
    void f2 ();
};


template <typename T_>
void Y<T_>::f2 ()
{ this->f1 (X::E1); }     // <--- accessing private enum of X

Y<int> y;

void f3 ()
{ y.f2 (); }


The code compiles fine even though function Y<>::f2() accesses the private
X::E1 enumerator.

BTW, Comeau online rejects the code above.

Kind regards
W. Roehrl

[Bug c++/50097] Private base class enumeration

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50097

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-08-16 11:53:16 UTC ---
this is a duplicate of at least one of these bugs:
http://gcc.gnu.org/bugzilla/buglist.cgi?list_id=653&short_desc=access
template&bug_status=UNCONFIRMED&bug_status=NEW&bug_status=ASSIGNED&short_desc_type=allwordssubstr&component=c%2B%2B&product=gcc

[Bug c++/50097] Private base class enumeration

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50097

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-08-16 11:55:08 UTC ---
bah, you'll need to copy that entire URL, bugzilla inserted linebreaks

it's probably PR 41437 or PR 47346

[Bug c++/50097] Private base class enumeration

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50097

Paolo Carlini <paolo.carlini at oracle dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |DUPLICATE

--- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-10-18 11:31:06 UTC ---
Let's close as duplicate of PR47346, and let's ask Dodji to double check that
his ongoing work fixes this one too.

*** This bug has been marked as a duplicate of bug 47346 ***