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From: "eaneiros at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/107768] New: Bogus -Wzero-as-null-pointer-constant in
 coroutine
Date: Sun, 20 Nov 2022 13:00:38 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107768

            Bug ID: 107768
           Summary: Bogus -Wzero-as-null-pointer-constant in coroutine
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: eaneiros at gmail dot com
  Target Milestone: ---

Created attachment 53930
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D53930&action=3Dedit
Sample code

I was trying one of the cppreference coroutine examples and encountered what
appears to be a false positive for -Wzero-as-null-pointer-constant. See
attached for sample code.

According to godbolt.org this happens in gcc trunk. To trigger it just comp=
ile
with -Wzero-as-null-pointer-constant.

Godbolt link: https://godbolt.org/z/41aMEErx4=