[Bug c++/56558] New: Address of operator with template base class member (C++ source compile error)
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56558 Bug #: 56558 Summary: Address of operator with template base class member (C++ source compile error) Classification: Unclassified Product: gcc Version: 4.6.4 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassig...@gcc.gnu.org ReportedBy: thierry.mor...@connotech.com Created attachment 29606 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29606 C++ source code (minimal) The C++ source file attached is minimal and causes a compiler error with 4.2 and 4.6 (latest snapshot), but neither 4.7 (except a 4.7.0 RC) nor 4.8. In member function 'void t2::f() [with int SIZE = 1000]': error: cannot convert 'int t1<1000>::*' to 'int*' in initialization
[Bug c++/56558] Address of operator with template base class member (C++ source compile error)
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56558
--- Comment #1 from Thierry Moreau
2013-03-07 02:02:05 UTC ---
Latest check was made with tools:
GCC_VERS=4.6-20130301
BINUTILS_VERS=2.23
GMP_VERS=5.0.5
MPFR_VERS=3.1.1
MPC_VERS=1.0.1
../gcc-${GCC_VERS}/configure \
-prefix=$HOME/tools_${NEXT_DEVLEVEL} \
-with-gmp=$HOME/tools_${NEXT_DEVLEVEL} \
-with-mpfr=$HOME/tools_${NEXT_DEVLEVEL} \
-with-mpc=$HOME/tools_${NEXT_DEVLEVEL} \
-program-prefix=${NEXT_DEVLEVEL_} \
-with-build-time-tools=$HOME/tools_${NEXT_DEVLEVEL} \
-enable-threads=posix \
-enable-clocale=gnu \
-disable-nls \
-enable-__cxa_atexit \
-enable-languages=c,c++ \
-with-boot-ldflags="-Wl,-rpath-link=$HOME/tools_${NEXT_DEVLEVEL}/lib
-Wl,-rpath=$HOME/tools_${NEXT_DEVLEVEL}/lib -Wl,-gc-sections"
[Bug c++/56558] Address of operator with template base class member (C++ source compile error)
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56558 --- Comment #3 from Thierry Moreau 2013-03-07 02:11:20 UTC --- pinskia at gcc dot gnu.org wrote: > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56558 > > --- Comment #2 from Andrew Pinski 2013-03-07 > 02:07:47 UTC --- >> The C++ source file attached is minimal and causes a compiler error with 4.2 >> and 4.6 (latest snapshot), but neither 4.7 (except a 4.7.0 RC) nor 4.8. > > So it was fixed in 4.7. > Yes.
[Bug c++/56558] Address of operator with template base class member (C++ source compile error)
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56558 --- Comment #5 from Thierry Moreau 2013-03-07 14:45:20 UTC --- paolo.carlini at oracle dot com wrote: > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56558 > > Paolo Carlini changed: > >What|Removed |Added > > Status|UNCONFIRMED |RESOLVED > Resolution||DUPLICATE > > --- Comment #4 from Paolo Carlini > 2013-03-07 08:47:18 UTC --- > Indeed. > > *** This bug has been marked as a duplicate of bug 48593 *** > Indeed, and thanks. I reported this bug (against 4.6 -- still supported by volunteers) because it *might* prevent the C++-converted gcc from being build with gcc in the range 3.x to 4.6. Working around bugs 48593 or 56558 is easy: get the pointer value through a reference declaration. The workaround may become a recommended coding style, with rationale being lost in the meantime. I don't know the terminology for gcc developers for applying a bug correction to an earlier version. So, I'm leaving it to you to determine if these bugs are relevant to 4.6 (and prior?) in view of the C++ conversion. Thanks and best regards,
