From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 9C6723857009; Wed, 17 May 2023 14:32:25 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 9C6723857009 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1684333945; bh=iANczxPNOQ/gxoeWfGCWpAmC4m0lPzWlx5T/1bMsqd0=; h=From:To:Subject:Date:In-Reply-To:References:From; b=stqUCIuYu3A/TXNlsx/YCj09WkLZfDxcFuTEV6IKkjn55fnzx4g5Q6tTljiI6sZXk hGE+4oVk7fuT1hegHv1FU6Q122PkZgkQRFyjJbOMEBqkHpVS8IG3smCgfijODe3wKT /Umv4H+NbqSjXRJ7Vx3lNydAVT00lTB+5YNTFFTI= From: "redi at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/109891] Null pointer special handling in ostream's operator << for C-strings Date: Wed, 17 May 2023 14:32:25 +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: 14.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: redi at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED 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=3D109891 --- Comment #2 from Jonathan Wakely --- --- a/libstdc++-v3/include/bits/ostream.tcc +++ b/libstdc++-v3/include/bits/ostream.tcc @@ -306,6 +306,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION basic_ostream<_CharT, _Traits>& operator<<(basic_ostream<_CharT, _Traits>& __out, const char* __s) { + _GLIBCXX_DEBUG_PEDANTIC(__s !=3D 0); if (!__s) __out.setstate(ios_base::badbit); else=