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* [Bug libstdc++/52931] New: std::hash shouldn't be defined for unknown types
@ 2012-04-11 7:43 marc.glisse at normalesup dot org
2012-04-11 10:02 ` [Bug libstdc++/52931] " paolo.carlini at oracle dot com
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: marc.glisse at normalesup dot org @ 2012-04-11 7:43 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52931
Bug #: 52931
Summary: std::hash shouldn't be defined for unknown types
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: marc.glisse@normalesup.org
As explained by Daniel Krügler in c++std-lib-32420 and nearby messages, the
default definition of std::hash is non-standard, it is supposed to be undefined
so we can test with sfinae whether hash was specialized for some type.
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug libstdc++/52931] std::hash shouldn't be defined for unknown types 2012-04-11 7:43 [Bug libstdc++/52931] New: std::hash shouldn't be defined for unknown types marc.glisse at normalesup dot org @ 2012-04-11 10:02 ` paolo.carlini at oracle dot com 2012-04-11 11:28 ` paolo at gcc dot gnu.org 2012-04-11 11:30 ` paolo.carlini at oracle dot com 2 siblings, 0 replies; 4+ messages in thread From: paolo.carlini at oracle dot com @ 2012-04-11 10:02 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52931 Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2012-04-11 AssignedTo|unassigned at gcc dot |paolo.carlini at oracle dot |gnu.org |com Target Milestone|--- |4.8.0 Ever Confirmed|0 |1 --- Comment #1 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-04-11 10:01:56 UTC --- No big deal. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug libstdc++/52931] std::hash shouldn't be defined for unknown types 2012-04-11 7:43 [Bug libstdc++/52931] New: std::hash shouldn't be defined for unknown types marc.glisse at normalesup dot org 2012-04-11 10:02 ` [Bug libstdc++/52931] " paolo.carlini at oracle dot com @ 2012-04-11 11:28 ` paolo at gcc dot gnu.org 2012-04-11 11:30 ` paolo.carlini at oracle dot com 2 siblings, 0 replies; 4+ messages in thread From: paolo at gcc dot gnu.org @ 2012-04-11 11:28 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52931 --- Comment #2 from paolo at gcc dot gnu.org <paolo at gcc dot gnu.org> 2012-04-11 11:27:57 UTC --- Author: paolo Date: Wed Apr 11 11:27:50 2012 New Revision: 186310 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=186310 Log: 2012-04-11 Paolo Carlini <paolo.carlini@oracle.com> PR libstdc++/52931 * include/bits/functional_hash.h (struct hash): Remove definition. * testsuite/20_util/hash/52931.cc: New. Added: trunk/libstdc++-v3/testsuite/20_util/hash/52931.cc Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/include/bits/functional_hash.h ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug libstdc++/52931] std::hash shouldn't be defined for unknown types 2012-04-11 7:43 [Bug libstdc++/52931] New: std::hash shouldn't be defined for unknown types marc.glisse at normalesup dot org 2012-04-11 10:02 ` [Bug libstdc++/52931] " paolo.carlini at oracle dot com 2012-04-11 11:28 ` paolo at gcc dot gnu.org @ 2012-04-11 11:30 ` paolo.carlini at oracle dot com 2 siblings, 0 replies; 4+ messages in thread From: paolo.carlini at oracle dot com @ 2012-04-11 11:30 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52931 Paolo Carlini <paolo.carlini at oracle dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED --- Comment #3 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-04-11 11:29:34 UTC --- Done. ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2012-04-11 11:30 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2012-04-11 7:43 [Bug libstdc++/52931] New: std::hash shouldn't be defined for unknown types marc.glisse at normalesup dot org 2012-04-11 10:02 ` [Bug libstdc++/52931] " paolo.carlini at oracle dot com 2012-04-11 11:28 ` paolo at gcc dot gnu.org 2012-04-11 11:30 ` paolo.carlini at oracle dot com
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