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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/96303] [10/11 Regression] Ambiguous overload for
 operator!= for std::__debug::bitset compiled with -std=c++20 and -pedantic.
Date: Thu, 23 Jul 2020 19:18:57 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96303

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
           Assignee|unassigned at gcc dot gnu.org      |redi at gcc dot gnu=
.org
   Last reconfirmed|                            |2020-07-23
             Status|UNCONFIRMED                 |ASSIGNED
      Known to work|                            |9.3.0
      Known to fail|                            |10.2.0, 11.0
            Summary|Ambiguous overload for      |[10/11 Regression]
                   |operator!=3D for              |Ambiguous overload for
                   |std::__debug::bitset        |operator!=3D for
                   |compiled with -std=3Dc++20    |std::__debug::bitset
                   |and -pedantic.              |compiled with -std=3Dc++20
                   |                            |and -pedantic.
   Target Milestone|---                         |10.3
           Keywords|                            |rejects-valid

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Yes I didn't realise the debug bitset defines its own rel ops. I wonder if =
it
really needs them at all.=