Hi Zeljko, On Wed, Sep 17, 2008 at 8:25 AM, Zeljko Vrba wrote:

A very concrete question:

I have map, pair, ..> as input. How do I produce map, pair on output?

Take a look at `transform` (algorithm/transformation/transform in the docs), I think that should work for you. If you are only interested in transforming the type, mpl::transform might work better (fusion's transform is lazy, so to get the map type out you'd also need `result_of::as_map` (container/conversion/metafunctions in the docs)). If you want to use mpl's transform on a fusion map, #include

- what is the purpose of for_each metafunction when the docs say that it always returns void? (and no side-effects are possible at compile-time)

fusion is not just compile-time - the types are compile time but the values are run-time. Regardless, the function invoked by for_each can have side-effects (there is also an mpl for_each which is useful). Best, Stjepan

Sorry to interrupt all, I am a newer for python/boost.python from c++, I want to use boost.python to extend python in Windows/VS2008, and I have download a installer and instal it from: http://www.boostpro.com/products/free I see some pages on the net that they say boost.python should be compile first before use, Now I have a question, Do i need to compile boost.python after I instal the installer? (from the installer, I think I don't need to compile it again ) If you can help me, just reply to me Separately or tell me through my MSN: way418@hotmail.com Thank you for all. _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users