Re: [Boost-users] multi-index-container with nested templates => problem getting iterator on 2nd index.

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typedef boost::multi_index_container< value_type, indexed_by< ordered_non_unique< tag<index1>,member >,

This cannot possibly work, as value_type does not have a member called first (you're using a tuple, not an std::pair). Anyway, the problem does not lie here.

Yes, I've been ignoring this while I figured out the iterator... it's leftover from the example and I just named things first,second,third while I get the rest figured out. What I did instead was use the structure below... I didn't want to mess with stuff like tuple_element<N>::template get<RET>(x) (or whatever the correct type-independent tuple-element accessor would be) becuase I'm really not that familiar with this sort of meta programming... this seems like it will work but if you're familiar with a better way, I'd love to hear about it. template struct bimultimap_triple { typedef T1 first_type; typedef T2 second_type; typedef T3 third_type; bimultimap_triple():first(T1()),second(T2()),third(T3()){} bimultimap_triple(const T1& f,const T2& s, const T3& t):first(f),second(s),third(t){} T1 first; T2 second; T3 third; };

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typedef typename bimultimap:: bimimap::index<index2>::type::iterator bimimapIterator2;

You need a disambiguating template keyword:

typedef typename bimultimap:: bimimap::template index<index2>::type::iterator bimimapIterator2;

That compiles (BIG THANK YOU). Next step is for me to figure out what this actually does. :) Can you give me some background (or point me to the correct reading material) on why the "template" qualifier is needed and what effect that has? I need to learn more about this...

Hope this helps. Thanks for using Boost.MultiIndex,

Definitely helped. Thanks. :)

Joaquín M López Muñoz Telefónica, Investigación y Desarrollo

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