[Bug libstdc++/77537] pair constructors do not properly SFINAE

2016-09-21 Thread ville.voutilainen at gmail dot com 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77537

Ville Voutilainen  changed:

   What|Removed |Added

 Status|RESOLVED|REOPENED
   Last reconfirmed||2016-09-21
 Resolution|FIXED   |---
 Ever confirmed|0   |1

--- Comment #6 from Ville Voutilainen  ---
Reopen for tracking the backport.

[Bug libstdc++/77537] pair constructors do not properly SFINAE

2016-09-21 Thread ville.voutilainen at gmail dot com 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77537

Ville Voutilainen  changed:

   What|Removed |Added

   Assignee|unassigned at gcc dot gnu.org  |ville.voutilainen at 
gmail dot com

--- Comment #7 from Ville Voutilainen  ---
And mine, again.

[Bug libstdc++/77537] pair constructors do not properly SFINAE

2016-09-21 Thread ville.voutilainen at gmail dot com 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77537

--- Comment #5 from Ville Voutilainen  ---
There's a fairly decent chance, sure. :) I'll cook up a patch.

[Bug libstdc++/77537] pair constructors do not properly SFINAE

2016-09-21 Thread Casey at Carter dot net 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77537

--- Comment #4 from Casey Carter  ---
Any chance of applying this to 6-branch as well? This is breaking both range-v3
and cmcstl2 in a nasty and hard-to-workaround way.

[Bug libstdc++/77537] pair constructors do not properly SFINAE

2016-09-21 Thread ville.voutilainen at gmail dot com 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77537

Ville Voutilainen  changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution|--- |FIXED

--- Comment #3 from Ville Voutilainen  ---
Fixed.

[Bug libstdc++/77537] pair constructors do not properly SFINAE

2016-09-21 Thread ville at gcc dot gnu.org 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77537

--- Comment #2 from ville at gcc dot gnu.org ---
Author: ville
Date: Wed Sep 21 16:48:35 2016
New Revision: 240322

URL: https://gcc.gnu.org/viewcvs?rev=240322=gcc=rev
Log:
PR libstdc++/77537
Implement LWG 2729 for pair.
* include/bits/stl_pair.h (_PCC): New.
(_ConstructiblePair, _ImplicitlyConvertiblePair):
Turn into static member functions of _PCC.
(_MoveConstructiblePair, _ImplicitlyMoveConvertiblePair): Likewise.
(_PCCP): New.
(pair(const _T1&, const _T2&)): Adjust.
(_PCCFP): New.
(pair(const pair<_U1, _U2>&)): Adjust.
(pair(_U1&&, const _T2&)): Likewise.
(pair(const _T1&, _U2&&)): Likewise.
(pair(_U1&&, _U2&&)): Likewise.
(pair(pair<_U1, _U2>&&)): Likewise.
(operator=(const pair&)): Make conditionally deleted.
(operator=(pair&&)): Make conditionally suppressed.
(operator=(const pair<_U1, _U2>&)): Constrain.
(operator=(pair<_U1, _U2>&&): Likewise.
* include/std/type_traits (__nonesuch): New.
* testsuite/20_util/pair/traits.cc: New.

Added:
trunk/libstdc++-v3/testsuite/20_util/pair/traits.cc
Modified:
trunk/libstdc++-v3/ChangeLog
trunk/libstdc++-v3/include/bits/stl_pair.h
trunk/libstdc++-v3/include/std/type_traits

[Bug libstdc++/77537] pair constructors do not properly SFINAE

2016-09-08 Thread ville.voutilainen at gmail dot com 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77537

--- Comment #1 from Ville Voutilainen  ---
See https://gcc.gnu.org/ml/gcc-patches/2016-08/msg01230.html