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* [Bug c++/17775] New: -frepo with function template in anonymous namespace fails to compile
@ 2004-10-01 14:08 rainy6144 at gmail dot com
2004-10-01 14:14 ` [Bug c++/17775] [3.3/3.4/4.0 Regression] " pinskia at gcc dot gnu dot org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: rainy6144 at gmail dot com @ 2004-10-01 14:08 UTC (permalink / raw)
To: gcc-bugs
This is the same bug as bug #6564. Using the same source file and compile
options as described there, linking fails in the same way in GCC 3.4.2:
collect: recompiling anontest2.cc
collect: relinking
collect: recompiling anontest2.cc
collect: relinking
collect: recompiling anontest2.cc
collect: relinking
collect: recompiling anontest2.cc
collect: relinking
collect: recompiling anontest2.cc
collect: relinking
collect: recompiling anontest2.cc
collect: relinking
collect: recompiling anontest2.cc
collect: relinking
collect: recompiling anontest2.cc
collect: relinking
collect: recompiling anontest2.cc
collect: relinking
collect: recompiling anontest2.cc
collect: relinking
collect: recompiling anontest2.cc
collect: relinking
collect: recompiling anontest2.cc
collect: relinking
collect: recompiling anontest2.cc
collect: relinking
collect: recompiling anontest2.cc
collect: relinking
collect: recompiling anontest2.cc
collect: relinking
collect: recompiling anontest2.cc
collect: relinking
collect: recompiling anontest2.cc
collect: relinking
anontest2.o(.text+0x21): In function `main':
: undefined reference to `void foo<(anonymous namespace)::Foo>((anonymous
namespace)::Foo)'
collect2: ld returned 1 exit status
The gcc in redhat linux 9 (3.2.2-5) works okay.
--
Summary: -frepo with function template in anonymous namespace
fails to compile
Product: gcc
Version: 3.4.2
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rainy6144 at gmail dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17775
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug c++/17775] [3.3/3.4/4.0 Regression] -frepo with function template in anonymous namespace fails to compile 2004-10-01 14:08 [Bug c++/17775] New: -frepo with function template in anonymous namespace fails to compile rainy6144 at gmail dot com @ 2004-10-01 14:14 ` pinskia at gcc dot gnu dot org 2004-10-01 16:04 ` bangerth at dealii dot org 2004-10-28 6:24 ` mmitchel at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu dot org @ 2004-10-01 14:14 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-01 14:14 ------- Confirmed, I think this comes from the fact that anonymous namespaces get some random name. -- What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed| |1 Keywords| |rejects-valid Last reconfirmed|0000-00-00 00:00:00 |2004-10-01 14:14:31 date| | Summary|-frepo with function |[3.3/3.4/4.0 Regression] - |template in anonymous |frepo with function template |namespace fails to compile |in anonymous namespace fails | |to compile Target Milestone|--- |3.4.3 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17775 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/17775] [3.3/3.4/4.0 Regression] -frepo with function template in anonymous namespace fails to compile 2004-10-01 14:08 [Bug c++/17775] New: -frepo with function template in anonymous namespace fails to compile rainy6144 at gmail dot com 2004-10-01 14:14 ` [Bug c++/17775] [3.3/3.4/4.0 Regression] " pinskia at gcc dot gnu dot org @ 2004-10-01 16:04 ` bangerth at dealii dot org 2004-10-28 6:24 ` mmitchel at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: bangerth at dealii dot org @ 2004-10-01 16:04 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From bangerth at dealii dot org 2004-10-01 16:04 ------- I assume this is broken by the fix to PR 9393. However, reverting that patch is going to open a much larger problem than it would fix here, given that not many people use -frepo. For reference, here is the code from PR 6564: ----------------------- namespace { struct Foo {}; } template <typename Tp> void foo(Tp) {} int main() { foo(Foo()); } --------------------------- g/x> /home/bangerth/bin/gcc-4.0-pre/bin/c++ -frepo -Wall -c x.cc g/x> /home/bangerth/bin/gcc-4.0-pre/bin/c++ -frepo -Wall x.o -o x collect: recompiling x.cc collect: relinking collect: recompiling x.cc collect: relinking collect: recompiling x.cc collect: relinking collect: recompiling x.cc collect: relinking collect: recompiling x.cc collect: relinking collect: recompiling x.cc .... W. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17775 ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c++/17775] [3.3/3.4/4.0 Regression] -frepo with function template in anonymous namespace fails to compile 2004-10-01 14:08 [Bug c++/17775] New: -frepo with function template in anonymous namespace fails to compile rainy6144 at gmail dot com 2004-10-01 14:14 ` [Bug c++/17775] [3.3/3.4/4.0 Regression] " pinskia at gcc dot gnu dot org 2004-10-01 16:04 ` bangerth at dealii dot org @ 2004-10-28 6:24 ` mmitchel at gcc dot gnu dot org 2 siblings, 0 replies; 4+ messages in thread From: mmitchel at gcc dot gnu dot org @ 2004-10-28 6:24 UTC (permalink / raw) To: gcc-bugs ------- Additional Comments From mmitchel at gcc dot gnu dot org 2004-10-28 06:24 ------- There is really no easy way to fix this problem. If we were to have -frepo set the random seed to a known value, we'd then get link errors when linking multiple translation units containing anonymous namespaces. We've discussed giving members of anonymous namespaces internal linkage (from the ELF point of view) even though the C++ standard gives them external linkage. That's probably the right fix, but it will not happen soon. Postponed until GCC 4.1. -- What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|3.4.3 |4.1.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17775 ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2004-10-28 6:24 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2004-10-01 14:08 [Bug c++/17775] New: -frepo with function template in anonymous namespace fails to compile rainy6144 at gmail dot com 2004-10-01 14:14 ` [Bug c++/17775] [3.3/3.4/4.0 Regression] " pinskia at gcc dot gnu dot org 2004-10-01 16:04 ` bangerth at dealii dot org 2004-10-28 6:24 ` mmitchel at gcc dot gnu dot org
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