Re: [Boost-users] boost::any typeid and different modules

From: Gernot Vormayr (gernot.vormayr_at_[hidden])
Date: 2007-09-02 18:07:48

Thank you for the link. This was just what I was looking for. After 
reading the thread (and a thread which was linked by this one) I hope to 
fully understand what is going on. Well -rdynamic didn't work for me, 
cause I'm developing on mac os x, but after removing -fvisibility=hidden 
it started working.

thx,
Gernot

Stephan Diederich schrieb:
> Hi Gernot,
> 
> On 9/1/07, *Gernot Vormayr* <gernot.vormayr_at_[hidden] 
> <mailto:gernot.vormayr_at_[hidden]>> wrote:
> 
>     Hi!
> 
>     I have some problems using boost::any in different modules that get
>     loaded with libdl. If i store an int in the boost::any it works like a
>     charm - but when i use a std::string then the boost::any (holding a
>     std::string) isn't any_castable to a std::string because it seems that
>     typeid(std::string) != boost::any.type(). Only thing which is the same
>     is the string represantation of type().name().
> 
> 
> I've recently encountered this issue, too. The comparison failes because 
> it compares pointers and each module has its own static rtti 
> information. You could try 
> http://lists.boost.org/Archives/boost/2007/07/124502.php for a solution.
> 
> HTH,
> Stephan
> 
> 
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