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From: "gdr at cs dot tamu dot edu" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/23628] Typeinfo comparison code easily breaks shared libs Date: Sat, 21 Jan 2006 21:45:00 -0000 [thread overview] Message-ID: <20060121214530.6490.qmail@sourceware.org> (raw) In-Reply-To: <bug-23628-10681@http.gcc.gnu.org/bugzilla/> ------- Comment #27 from gdr at cs dot tamu dot edu 2006-01-21 21:45 ------- Subject: Re: Typeinfo comparison code easily breaks shared libs "rjohnson at dogstar-interactive dot com" <gcc-bugzilla@gcc.gnu.org> writes: | I just got bit by this using | gcc version 4.0.3 20051201 (prerelease) (Debian 4.0.2-5) (powerpc) | | It's just my $.02 from the gallery, but that address comparison in the | type_info::oprator==() implementation looks suspect. Stroustrup (3rd edition, | $15.4.4) specifically says: | | It is _not_ guaranteed that there is only one type_info object for each type in | the system. | | and then he goes on to call out dynamically linked libraries as a particular | case. | | If folks are interested, I can propose a relatively inexpensive (i.e. | non-strcmp) runtime strawman for consideration. Please look more carefully at the real implementation and look up the archive. -- Gaby -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23628
next prev parent reply other threads:[~2006-01-21 21:45 UTC|newest] Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <bug-23628-10681@http.gcc.gnu.org/bugzilla/> 2006-01-21 21:02 ` rjohnson at dogstar-interactive dot com 2006-01-21 21:45 ` gdr at cs dot tamu dot edu [this message] 2006-09-18 21:02 ` geoffk at gcc dot gnu dot org 2005-08-29 19:55 [Bug c++/23628] New: " mmarcus at emarcus dot org 2005-08-29 19:58 ` [Bug c++/23628] " pinskia at gcc dot gnu dot org 2005-08-29 19:59 ` pinskia at gcc dot gnu dot org 2005-08-29 20:23 ` mmarcus at emarcus dot org 2005-08-29 20:27 ` mmarcus at emarcus dot org 2005-08-29 20:30 ` pinskia at gcc dot gnu dot org 2005-08-29 20:31 ` pinskia at gcc dot gnu dot org 2005-08-29 20:34 ` pinskia at gcc dot gnu dot org 2005-08-29 20:40 ` pinskia at gcc dot gnu dot org 2005-08-29 20:49 ` mmarcus at emarcus dot org 2005-08-29 20:56 ` pinskia at gcc dot gnu dot org 2005-08-29 20:57 ` pinskia at gcc dot gnu dot org 2005-08-29 21:01 ` mmarcus at emarcus dot org 2005-08-29 21:05 ` mmarcus at emarcus dot org 2005-08-29 21:11 ` pinskia at gcc dot gnu dot org 2005-08-29 21:32 ` mmarcus at emarcus dot org 2005-08-29 21:32 ` Andrew Pinski 2005-08-29 21:57 ` pinskia at physics dot uc dot edu 2005-08-29 22:14 ` mmarcus at emarcus dot org 2005-08-30 13:17 ` ghost at cs dot msu dot su 2005-08-30 13:44 ` gdr at integrable-solutions dot net 2005-08-31 7:19 ` ghost at cs dot msu dot su 2005-08-31 14:21 ` pinskia at gcc dot gnu dot org 2005-08-31 14:39 ` ghost at cs dot msu dot su 2005-08-31 14:56 ` gdr at integrable-solutions dot net 2005-09-01 8:35 ` mmarcus at emarcus dot org 2005-09-01 10:42 ` s_gccbugzilla at nedprod dot com
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