Re: [boost] Possible bug with mpl::joint_view working on two mpl::maps

Martin Apel wrote in message news:46C19A4F.9080505@simpack.de...

Aleksey Gurtovoy wrote:

...

All in all, to get the behavior you want with the current library you need to actually merge two maps into a third one. [...]

I'm not sure, if I understand this correctly. What is the recommended way of merging two maps into a third one? Is it possible with the current MPL implementation?

Sure.

I only found an map::insert metafunction to insert a single element, but not a whole range of pairs.

You can actually to do something along these lines (untested): typedef copy< joint_view<Map1,Map2> , inserter< map0<>, insert<_1,_2> > >::type JointMap; -- Aleksey Gurtovoy MetaCommunications Engineering