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List:       kde-devel
Subject:    Re: RTTI / dynamic casts in KDE?
From:       David Faure <david () mandrakesoft ! com>
Date:       2002-01-28 22:49:37
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On Monday 28 January 2002 22:47, Manuel Arriaga wrote:
> I don't know what this means, but I suppose that if no rtti option is passed 
> to GCC then RTTI will be used. (Just guessing :-) )

Right, rtti is on by default.

> But I would be interested in knowing more about what Waldo mentioned: that 
> "rtti is not reliable in combination with dynamically loaded code". Does 
this 
> mean that using RTTI inside a shared library isn't a good idea (as it seems 
> to happen with kdelibs??)? 
No problem with shared libraries that apps link to.

> Or that RTTI shouldn't be used in programs which 
> link against shared libraries at runtime? Or both?

Problem is when dlopening a module, and using rtti on the objects defined 
inside that module. See discussion with the gcc developers, about RTDL_GLOBAL 
etc.

-- 
David FAURE, david@mandrakesoft.com, faure@kde.org
http://people.mandrakesoft.com/~david, http://www.konqueror.org
KDE 3.0: Konquering the Desktops

 
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