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From: "pavel.kryukov at phystech dot edu" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/103853] New: std::forward_list::merge should check if __list != this
Date: Tue, 28 Dec 2021 20:43:50 +0000	[thread overview]
Message-ID: <bug-103853-4@http.gcc.gnu.org/bugzilla/> (raw)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103853

            Bug ID: 103853
           Summary: std::forward_list::merge should check if __list !=
                    this
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pavel.kryukov at phystech dot edu
  Target Milestone: ---

Created attachment 52080
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52080&action=edit
check if __list==this in std::forward_list::merge

C++ standard does not require 'do nothing' if std::forward_list::merge argument
equals to 'this', however it does not say 'undefined behavior' or 'infinite
loop' too.

I've attached my patch to fix and test it, but since I'm not an experienced GCC
contributor, I don't know how to run the tests. Following instructions on
CONTRIBUTING page builds whole GCC ending with some problems with my machine. I
would be grateful if you tell how I can test only libstdc++.

             reply	other threads:[~2021-12-28 20:43 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-28 20:43 pavel.kryukov at phystech dot edu [this message]
2021-12-29 10:12 ` [Bug libstdc++/103853] " redi at gcc dot gnu.org
2021-12-29 10:22 ` redi at gcc dot gnu.org
2022-01-05 10:06 ` redi at gcc dot gnu.org
2022-01-05 10:48 ` redi at gcc dot gnu.org
2022-01-05 14:40 ` pavel.kryukov at phystech dot edu
2022-01-05 14:47 ` redi at gcc dot gnu.org
2022-01-06 10:50 ` pavel.kryukov at phystech dot edu
2022-01-06 15:00 ` cvs-commit at gcc dot gnu.org
2022-01-06 15:39 ` redi at gcc dot gnu.org
2022-01-06 19:02 ` pavel.kryukov at phystech dot edu
2022-04-21 12:33 ` cvs-commit at gcc dot gnu.org
2022-04-26 13:11 ` cvs-commit at gcc dot gnu.org
2022-05-09 16:40 ` cvs-commit at gcc dot gnu.org
2022-05-09 19:45 ` redi at gcc dot gnu.org

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