Michael Marcin wrote:
Hi,
I've been toying around with the idea of using fusion in my geometry library (at least that seems to be the terminology in use around here). I started reading the documentation and I ran into a problem with the firs thing I tried to do.
[...]
fails to compile with:
[...]
changing deref::call from: return it.array[Iterator::index::value]; to: return it.array.at( Iterator::index::value );
causes it to compile so I'm thinking it is a compiler bug that needs to be worked around.
It is indeed a compiler bug, but I think there's more to it than that. With your fix, VC7.1 complains: boost\array.hpp(159) : error C3861: 'size': identifier not found, even with argument-dependent lookup while VC8 is ok. This is not a problem on any other compiler though. Also, it's funny that the fusion test for array is also ok. I noted that the thing that's causing problems is the header include: #include <boost/array.hpp> #include <boost/fusion/iterator.hpp> #include <boost/fusion/sequence.hpp> Changing this to #include <boost/array.hpp> #include <boost/fusion/sequence/adapted/array.hpp> #include <boost/fusion/sequence/intrinsic.hpp> makes VC++ happy. I'll investigate further... Regards, -- Joel de Guzman http://www.boost-consulting.com http://spirit.sf.net