------- 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" <[EMAIL PROTECTED]> 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

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