De: boost-users-bounces@lists.boost.org [boost-users-bounces@lists.boost.org] En nombre de Ramesh [rramesh1@gmail.com]
Enviado el: martes, 19 de agosto de 2008 20:16
Para: boost-users@lists.boost.org
Asunto: Re: [Boost-users] Multi-index container (Modifying non-unique key in the container)



On Wed, Aug 13, 2008 at 10:20 AM, JOAQUIN M. LOPEZ MUÑOZ <joaquin@tid.es> wrote:
De: boost-users-bounces@lists.boost.org [boost-users-bounces@lists.boost.org] En nombre de Ramesh [rramesh1@gmail.com]
Enviado el: martes, 12 de agosto de 2008 20:40
[...]
Hmm... I'm not referring to your myclass wrapper, but rather to the fact
that you're storing DataMaps objects into the container rather than
A*s directly.
 
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

> Sorry if I got your question wrong, I am storing only pointers to objects
> inside the map and each instance of myclass would hold one such
> container to hold pointers to objects of class A along with keys.
Yes, but DataMap seems to *replicate* the keys that are already
present in A. Cannot you just have the following?
 
typedef multi_index_container<
  A*, 
    indexed_by<
        ordered_unique<
            tag <Key1>, BOOST_MULTI_INDEX_MEMBER(A,std::string,Key1)>,
        ordered_non_unique<
                  tag<Key2>,BOOST_MULTI_INDEX_MEMBER(A,long,Key2)>,   
              ordered_unique<
                  tag<Key3>,BOOST_MULTI_INDEX_MEMBER(A,long,Key3)>
    >
> tDMap;
 
Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo