Launchpad has imported 9 comments from the remote bug at https://gcc.gnu.org/bugzilla/show_bug.cgi?id=16889.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://documentation.ubuntu.com/launchpad/user/reference/bugs/multi-project-bugs/about-multi-project-bugs/#bugs-in-external-trackers. ------------------------------------------------------------------------ On 2004-08-05T19:30:01+00:00 Dvv-v wrote: Ambiguity is not detected in this code: // start of code class B { public: B* p; B* f(); virtual ~B(); }; class B1 : virtual public B { }; class B2 : virtual public B { }; class B3 : public B { }; class BB : public B1, public B2, public B3 { }; #include <iostream> B* B::f () { std::cout << this << std::endl; return this; } B::~B() { std::cout << this << ".~B()" << std::endl; } int main () { BB b; b.B1::f(); b.B2::f(); b.B3::f(); b.f(); } // end of code 2.95.3 correctly rejects this code. Reply at: https://bugs.launchpad.net/ubuntu/+source/gcc-4.4/+bug/424838/comments/0 ------------------------------------------------------------------------ On 2004-08-05T19:34:53+00:00 Pinskia wrote: Confirmed. Reply at: https://bugs.launchpad.net/ubuntu/+source/gcc-4.4/+bug/424838/comments/1 ------------------------------------------------------------------------ On 2004-08-05T20:31:22+00:00 Bangerth wrote: This is the obvious minimal example: ---------------------------- struct B { int f(); }; struct B1 : virtual B {}; struct B2 : B {}; struct BB : B1, B2 {}; int i = BB().f(); ------------------------------------- g/x> ~/bin/gcc-3.4*/bin/c++ -c x.cc g/x> ~/bin/gcc-3.3/bin/c++ -c x.cc x.cc:9: error: request for member `f' is ambiguous x.cc:2: error: candidates are: int B::f() x.cc:2: error: int B::f() To my great surprise, the picture changes once one makes member function f() a member _variable_: --------------------------- struct B { int i; }; struct B1 : virtual B {}; struct B2 : B {}; struct BB : B1, B2 {}; int i = BB().i; ------------------------------------ In this case, gcc3.4 suddently does spit out an error message (though not a very enlightening) whereas 3.3 shows the same message as before: g/x> ~/bin/gcc-3.4*/bin/c++ -c x.cc x.cc:9: error: `B' is an ambiguous base of `BB' g/x> ~/bin/gcc-3.3/bin/c++ -c x.cc x.cc:9: error: request for member `i' is ambiguous x.cc:2: error: candidates are: int B::i x.cc:2: error: int B::i W. Reply at: https://bugs.launchpad.net/ubuntu/+source/gcc-4.4/+bug/424838/comments/2 ------------------------------------------------------------------------ On 2004-08-05T20:36:30+00:00 Pinskia wrote: : Search converges between 2003-02-19-trunk (#187) and 2003-02-20-trunk (#188). Reply at: https://bugs.launchpad.net/ubuntu/+source/gcc-4.4/+bug/424838/comments/3 ------------------------------------------------------------------------ On 2004-08-05T20:48:57+00:00 Pinskia wrote: Most likely caused by: 2003-02-20 Nathan Sidwell <[email protected]> Change base class access representation. Share virtual base binfos. * cp/call.c (build_special_member_call): Remove binfo_for_vbase call. * cp/class.c (build_base_path): Likewise. .... Reply at: https://bugs.launchpad.net/ubuntu/+source/gcc-4.4/+bug/424838/comments/4 ------------------------------------------------------------------------ On 2004-08-24T16:06:37+00:00 Cvs-commit wrote: Subject: Bug 16889 CVSROOT: /cvs/gcc Module name: gcc Changes by: [email protected] 2004-08-24 16:06:22 Modified files: gcc/cp : ChangeLog search.c gcc/testsuite : ChangeLog Added files: gcc/testsuite/g++.dg/lookup: ambig1.C ambig2.C Log message: cp: PR c++/16889 * (is_subobject_of_p): Resurrect & optimize. (lookup_field_r): Use it. testsuite: PR c++/16889 * g++.dg/lookup/ambig[12].C: New. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.4299&r2=1.4300 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/search.c.diff?cvsroot=gcc&r1=1.310&r2=1.311 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4181&r2=1.4182 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/lookup/ambig1.C.diff?cvsroot=gcc&r1=NONE&r2=1.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/lookup/ambig2.C.diff?cvsroot=gcc&r1=NONE&r2=1.1 Reply at: https://bugs.launchpad.net/ubuntu/+source/gcc-4.4/+bug/424838/comments/5 ------------------------------------------------------------------------ On 2004-08-24T16:18:47+00:00 Natoan wrote: PR c++/16889 * (is_subobject_of_p): Resurrect & optimize. (lookup_field_r): Use it. Reply at: https://bugs.launchpad.net/ubuntu/+source/gcc-4.4/+bug/424838/comments/6 ------------------------------------------------------------------------ On 2004-08-24T16:34:24+00:00 Cvs-commit wrote: Subject: Bug 16889 CVSROOT: /cvs/gcc Module name: gcc Branch: gcc-3_4-branch Changes by: [email protected] 2004-08-24 16:34:15 Modified files: gcc/cp : ChangeLog search.c gcc/testsuite : ChangeLog Added files: gcc/testsuite/g++.dg/lookup: ambig1.C ambig2.C Log message: cp: PR c++/16889 * (is_subobject_of_p): Resurrect & optimize. (lookup_field_r): Use it. testsuite: PR c++/16889 * g++.dg/lookup/ambig[12].C: New. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3892.2.151&r2=1.3892.2.152 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/search.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.284.4.3&r2=1.284.4.4 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3389.2.258&r2=1.3389.2.259 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/lookup/ambig1.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.2.1 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/lookup/ambig2.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.2.1 Reply at: https://bugs.launchpad.net/ubuntu/+source/gcc-4.4/+bug/424838/comments/7 ------------------------------------------------------------------------ On 2004-09-24T14:05:05+00:00 Cvs-commit wrote: Subject: Bug 16889 CVSROOT: /cvs/gcc Module name: gcc Changes by: [email protected] 2004-09-24 14:04:59 Modified files: gcc/cp : search.c ChangeLog gcc/testsuite : ChangeLog Added files: gcc/testsuite/g++.dg/lookup: ambig3.C Log message: cp: PR c++/16889 * search.c (lookup_field_queue_p): Correct check for hidden base. * search.c (bfs_walk): Remove. (lookup_member): Use dfs_walk_real. (dfs_walk_real): Move and adjust documentation from bfs_walk. testsuite: PR c++/16889 * g++.dg/lookup/ambig3.C: New. Patches: http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/search.c.diff?cvsroot=gcc&r1=1.321&r2=1.322 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&r1=1.4383&r2=1.4384 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4341&r2=1.4342 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/lookup/ambig3.C.diff?cvsroot=gcc&r1=NONE&r2=1.1 Reply at: https://bugs.launchpad.net/ubuntu/+source/gcc-4.4/+bug/424838/comments/8 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/424838 Title: g++ fails on qualified name in multiple inheritance To manage notifications about this bug go to: https://bugs.launchpad.net/gcc/+bug/424838/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
