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* [Bug libstdc++/60921] New: 'final' allocators are incompatible with the Empty Base-class Optimisation
@ 2014-04-22 14:35 redi at gcc dot gnu.org
2014-04-22 14:36 ` [Bug libstdc++/60921] " redi at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: redi at gcc dot gnu.org @ 2014-04-22 14:35 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60921
Bug ID: 60921
Summary: 'final' allocators are incompatible with the Empty
Base-class Optimisation
Product: gcc
Version: 4.10.0
Status: UNCONFIRMED
Keywords: rejects-valid
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: redi at gcc dot gnu.org
Depends on: 51365
+++ This bug was initially created as a clone of Bug #51365 +++
Deriving from allocators to use the EBO doesn't work if they are final:
#include <future>
#include <memory>
template<typename T>
struct final_allocator final : std::allocator<T>
{
final_allocator() = default;
template<typename U>
final_allocator(const final_allocator<U>&) { }
template<typename U>
struct rebind { typedef final_allocator<U> other; };
};
final_allocator<int> a;
std::promise<int> p(std::allocator_arg, a);
This affects the containers and most types in <future>. See Bug 51365 comment 6
for a partial fix.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug libstdc++/60921] 'final' allocators are incompatible with the Empty Base-class Optimisation
2014-04-22 14:35 [Bug libstdc++/60921] New: 'final' allocators are incompatible with the Empty Base-class Optimisation redi at gcc dot gnu.org
@ 2014-04-22 14:36 ` redi at gcc dot gnu.org
2014-04-25 15:00 ` redi at gcc dot gnu.org
2021-04-19 10:40 ` redi at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: redi at gcc dot gnu.org @ 2014-04-22 14:36 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60921
Bug 60921 depends on bug 51365, which changed state.
Bug 51365 Summary: cannot use final empty class in std::tuple
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51365
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug libstdc++/60921] 'final' allocators are incompatible with the Empty Base-class Optimisation
2014-04-22 14:35 [Bug libstdc++/60921] New: 'final' allocators are incompatible with the Empty Base-class Optimisation redi at gcc dot gnu.org
2014-04-22 14:36 ` [Bug libstdc++/60921] " redi at gcc dot gnu.org
@ 2014-04-25 15:00 ` redi at gcc dot gnu.org
2021-04-19 10:40 ` redi at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: redi at gcc dot gnu.org @ 2014-04-25 15:00 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60921
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2014-04-25
Assignee|unassigned at gcc dot gnu.org |redi at gcc dot gnu.org
Ever confirmed|0 |1
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug libstdc++/60921] 'final' allocators are incompatible with the Empty Base-class Optimisation
2014-04-22 14:35 [Bug libstdc++/60921] New: 'final' allocators are incompatible with the Empty Base-class Optimisation redi at gcc dot gnu.org
2014-04-22 14:36 ` [Bug libstdc++/60921] " redi at gcc dot gnu.org
2014-04-25 15:00 ` redi at gcc dot gnu.org
@ 2021-04-19 10:40 ` redi at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: redi at gcc dot gnu.org @ 2021-04-19 10:40 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60921
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|redi at gcc dot gnu.org |unassigned at gcc dot gnu.org
Status|ASSIGNED |NEW
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-04-19 10:40 UTC | newest]
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2014-04-22 14:35 [Bug libstdc++/60921] New: 'final' allocators are incompatible with the Empty Base-class Optimisation redi at gcc dot gnu.org
2014-04-22 14:36 ` [Bug libstdc++/60921] " redi at gcc dot gnu.org
2014-04-25 15:00 ` redi at gcc dot gnu.org
2021-04-19 10:40 ` redi at gcc dot gnu.org
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