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From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/96673] [8/9/10/11 Regression] Friend class with templates
 and default constructor not recognized in C++14 or later
Date: Tue, 18 Aug 2020 16:08:06 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96673

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
                 CC|                            |mpolacek at gcc dot gnu.org
   Target Milestone|---                         |8.5
   Last reconfirmed|                            |2020-08-18
           Keywords|                            |rejects-valid
            Summary|Friend class with templates |[8/9/10/11 Regression]
                   |and default constructor not |Friend class with templates
                   |recognized in C++14 or      |and default constructor not
                   |later                       |recognized in C++14 or
                   |                            |later

--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed.  GCC 5 actualled ICEd on this.  GCC 4.9 compiled it even with
-std=3Dc++14.=