From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 8EEF43858419; Wed, 3 Jan 2024 10:14:53 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 8EEF43858419 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1704276893; bh=g9w7h31+cEIjbB5h4FT2FTp9CkudaaE+B5HKFTy6BBc=; h=From:To:Subject:Date:In-Reply-To:References:From; b=T9ATX4UFfYQDICohmXLpUULepsDV/f5hjBYP3l9ftmQdZBM9dd7oIRe9WvuUdZZVN XikRMzHwkvZN2LEMiKuPEGSCLbXMZiDxeLrIn+XMHnGTL4oOK7b/41iHfydD/2W8rV iWnO8Sl3ca0JAfxBgFFwZB9cYU8QtRf+gXh1Jxoc= From: "pinskia at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/113202] std::find does not work with the maximum range of pointers Date: Wed, 03 Jan 2024 10:14:52 +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: 13.2.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: pinskia at gcc dot gnu.org X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: INVALID 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=3D113202 --- Comment #8 from Andrew Pinski --- The assumption is first and last are part of the same iterator which means = in the case of pointers, it needs to be addresses inside the array or one elem= ent past the array. Everything else is undefined. It just happens to work for msvc's library does not mean it is defined code= .=