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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++/108118] std::weak_ptr lacks a self-usurp check on
 move
Date: Thu, 15 Dec 2022 09:36:07 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108118

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2022-12-15
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Actually for this type the standard does require it to be effectively a no-=
op:

weak_ptr& operator=3D(weak_ptr&& r) noexcept;

Effects: Equivalent to weak_ptr(std::move(r)).swap(*this).=