From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 8F213385661B; Tue, 30 May 2023 11:21:48 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 8F213385661B DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1685445708; bh=N/PLDE06IEBBLFtbEYHezy79Bf0Nye1FR8Qc8GuJ6t0=; h=From:To:Subject:Date:In-Reply-To:References:From; b=tBnSETwHR4IyvzyvViy4rkTWlvJKmOr9XUYISRXp2cS8iQKgwm/bRyQsBaWYtH9P0 a3bCkUInNOkio/L83e+Z+XRtdeVCps6VpAtY91SEmhp2KdjbqQ4cKQAglWvoszaM4R eC5JbCefa0naKluk+0rz5OFWEZUDHtxaQPAR8+yY= From: "redi at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/86880] Incorrect mersenne_twister_engine equality comparison between rotated states Date: Tue, 30 May 2023 11:21:48 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: libstdc++ X-Bugzilla-Version: 9.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: redi at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D86880 --- Comment #3 from Jonathan Wakely --- We have the same problem with std::subtract_with_carry_engine. Its equality operator doesn't work for rotated states.=