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From: "Giovanni Bajo" <bagio@zh.t2-design.com> To: nobody@gcc.gnu.org Cc: gcc-prs@gcc.gnu.org, Subject: Re: c++/8417: g++ 3.2 generating different (and incorrect?) code from g++ 2.95.4 Date: Fri, 01 Nov 2002 00:46:00 -0000 [thread overview] Message-ID: <20021101084605.28461.qmail@sources.redhat.com> (raw) The following reply was made to PR c++/8417; it has been noted by GNATS. From: "Giovanni Bajo" <bagio@zh.t2-design.com> To: <gcc-gnats@gcc.gnu.org>, <gcc-prs@gcc.gnu.org>, <germain@cs.utah.edu>, <gcc-bugs@gcc.gnu.org>, <nobody@gcc.gnu.org> Cc: Subject: Re: c++/8417: g++ 3.2 generating different (and incorrect?) code from g++ 2.95.4 Date: Fri, 1 Nov 2002 16:38:07 +0800 This is a multi-part message in MIME format. ------=_NextPart_000_1771_01C281C5.0E6A1990 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=3Dview%20audit-trail&database=3D= gcc&pr=3D8417 The value of this can be changed by the compiler at any time, there is = no guarantee (in the C++ standard) that it remains the same across the = derived class tree. For example, it is very usual that the value changes = when you are using multiple inheritance. This is not a bug in the = compiler. ------=_NextPart_000_1771_01C281C5.0E6A1990 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 5.50.4916.2300" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><A=20 href=3D"http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=3Dview%20audit-trail&a= mp;database=3Dgcc&pr=3D8417">http://gcc.gnu.org/cgi-bin/gnatsweb.pl?c= md=3Dview%20audit-trail&database=3Dgcc&pr=3D8417</A></DIV> <DIV><FONT face=3DArial size=3D2></FONT> </DIV> <DIV><FONT face=3DArial size=3D2>The value of this can be changed by the = compiler at=20 any time, there is no guarantee (in the C++ standard) that it remains = the same=20 across the derived class tree. For example, it is very usual that the = value=20 changes when you are using multiple inheritance. This is not a bug in = the=20 compiler.</FONT></DIV></BODY></HTML> ------=_NextPart_000_1771_01C281C5.0E6A1990--
next reply other threads:[~2002-11-01 8:46 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2002-11-01 0:46 Giovanni Bajo [this message] -- strict thread matches above, loose matches on Subject: below -- 2002-11-01 17:50 bangerth 2002-10-31 13:36 germain
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