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* [Bug c++/56009] New: Nested global destruction semantics not working (mingw) @ 2013-01-16 19:58 daniel.kruegler at googlemail dot com 2013-01-21 10:46 ` [Bug c++/56009] " daniel.kruegler at googlemail dot com ` (3 more replies) 0 siblings, 4 replies; 5+ messages in thread From: daniel.kruegler at googlemail dot com @ 2013-01-16 19:58 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56009 Bug #: 56009 Summary: Nested global destruction semantics not working (mingw) Classification: Unclassified Product: gcc Version: 4.7.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassigned@gcc.gnu.org ReportedBy: daniel.kruegler@googlemail.com The following program - compiled with flags -Wall -pedantic-errors produces an unexpected output: //----------------------------------- extern "C" int printf(const char *, ...); class A { A(const A&); A& operator=(const A&); A() { printf("A()\n"); } ~A() { printf("~A()\n"); } public: void use() { printf("A is here!\n"); } static A& get_instance() { static A result; return result; } }; void use_A(const char* message) { A& a = A::get_instance(); printf("Using A %s\n", message); a.use(); } struct B { ~B() { use_A("from ~B()"); } } b; int main() {} //----------------------------------- A() Using A from ~B() A is here! Note the lack of the expected last line: ~A() Some further characteristics: 1) The problem is observed on a mingw-64bit system (Windows 7). I have been told that the problem doesn't occur on Linux(?) systems (Thanks to Jonathan Wakely) 2) The kind of global destruction semantics doesn't matter: Instead of a local static variables we can use corresponding series of nested atexit() registrations. 3) The problem is not related to flushing: Replacement of above printf calls by e.g. std::cout with an effective std::flush call doesn't change anything ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug c++/56009] Nested global destruction semantics not working (mingw) 2013-01-16 19:58 [Bug c++/56009] New: Nested global destruction semantics not working (mingw) daniel.kruegler at googlemail dot com @ 2013-01-21 10:46 ` daniel.kruegler at googlemail dot com 2013-01-21 11:03 ` [Bug target/56009] " paolo.carlini at oracle dot com ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: daniel.kruegler at googlemail dot com @ 2013-01-21 10:46 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56009 Daniel Krügler <daniel.kruegler at googlemail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |ktietz at gcc dot gnu.org --- Comment #1 from Daniel Krügler <daniel.kruegler at googlemail dot com> 2013-01-21 10:45:58 UTC --- Added Kai hoping to raise his interest in this issue ;-) ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/56009] Nested global destruction semantics not working (mingw) 2013-01-16 19:58 [Bug c++/56009] New: Nested global destruction semantics not working (mingw) daniel.kruegler at googlemail dot com 2013-01-21 10:46 ` [Bug c++/56009] " daniel.kruegler at googlemail dot com @ 2013-01-21 11:03 ` paolo.carlini at oracle dot com 2024-04-09 2:35 ` pinskia at gcc dot gnu.org 2024-04-09 2:38 ` pinskia at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: paolo.carlini at oracle dot com @ 2013-01-21 11:03 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56009 Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2013-01-21 CC| |jason at gcc dot gnu.org Component|c++ |target Ever Confirmed|0 |1 --- Comment #2 from Paolo Carlini <paolo.carlini at oracle dot com> 2013-01-21 11:03:20 UTC --- Let's add Jason in CC. Confirmed that doesn't happen on Linux. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/56009] Nested global destruction semantics not working (mingw) 2013-01-16 19:58 [Bug c++/56009] New: Nested global destruction semantics not working (mingw) daniel.kruegler at googlemail dot com 2013-01-21 10:46 ` [Bug c++/56009] " daniel.kruegler at googlemail dot com 2013-01-21 11:03 ` [Bug target/56009] " paolo.carlini at oracle dot com @ 2024-04-09 2:35 ` pinskia at gcc dot gnu.org 2024-04-09 2:38 ` pinskia at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: pinskia at gcc dot gnu.org @ 2024-04-09 2:35 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56009 --- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- This is IIRC the whole atexit vs __cxa_atexit issue. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/56009] Nested global destruction semantics not working (mingw) 2013-01-16 19:58 [Bug c++/56009] New: Nested global destruction semantics not working (mingw) daniel.kruegler at googlemail dot com ` (2 preceding siblings ...) 2024-04-09 2:35 ` pinskia at gcc dot gnu.org @ 2024-04-09 2:38 ` pinskia at gcc dot gnu.org 3 siblings, 0 replies; 5+ messages in thread From: pinskia at gcc dot gnu.org @ 2024-04-09 2:38 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56009 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- See Also| |https://gcc.gnu.org/bugzill | |a/show_bug.cgi?id=2474 --- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- (In reply to Andrew Pinski from comment #3) > This is IIRC the whole atexit vs __cxa_atexit issue. Which is PR 2474 . ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2024-04-09 2:38 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2013-01-16 19:58 [Bug c++/56009] New: Nested global destruction semantics not working (mingw) daniel.kruegler at googlemail dot com 2013-01-21 10:46 ` [Bug c++/56009] " daniel.kruegler at googlemail dot com 2013-01-21 11:03 ` [Bug target/56009] " paolo.carlini at oracle dot com 2024-04-09 2:35 ` pinskia at gcc dot gnu.org 2024-04-09 2:38 ` pinskia at gcc dot gnu.org
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