RE: [boost] shared_ptr, interface and dlls

From: Stefan Seefeld (sseefeld_at_[hidden])
Date: 2004-12-08 12:51:05

> From: Peter Dimov [mailto:pdimov_at_[hidden]]

> > Is your advice
> > above simply due to a limitation with MSVC ?
> 
> It seems so. From a quick test, g++ and bcc32 do return C++ 
> classes from 
> extern "C" functions, only MSVC emits an error. I'm not sure 
> whether such a 
> function makes sense, though. If you suppress name mangling, 
> presumably 
> because two different compilers mangle names differently, 
> what are the 
> chances that the object layout will be the same? 

Oh, ABI compatibility is an entirely different issue, I agree.
However, if you want to write your own component model you
have to use an entry point with extern C linkage, even though
the whole thing will be compiled with the same toolchain.

Regards,
                Stefan