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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++/112477] [13/14 Regression] Assignment of
 value-initialized iterators differs from value-initialization
Date: Tue, 09 Jan 2024 16:17:34 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112477

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Assignment of               |[13/14 Regression]
                   |value-initialized iterators |Assignment of
                   |differs from                |value-initialized iterators
                   |value-initialization        |differs from
                   |                            |value-initialization
      Known to fail|                            |13.2.0
      Known to work|                            |12.3.0
                 CC|                            |fdumont at gcc dot gnu.org
   Target Milestone|---                         |13.3

--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
You didn't mention this is a recent regression, I assumed it was a pre-exis=
ting
problem. It seems that the error for Guiseppe's original testcase is also a
recent regression, almost certainly the same bug.

That seems to be an unintended consequence of that change. As far as I can =
see,
it was supposed to only affect detached iterators, but your example doesn't
have any.

Fran=C3=A7ois, please take a look.=