Re: [Boost-users] multi_index_container for composite key

Subject: Re: [Boost-users] multi_index_container for composite key
From: Andrew Holden (aholden_at_[hidden])
Date: 2010-06-01 09:39:40

On Tuesday, June 01, 2010 5:41 AM, Uthpal Urubail wrote:
> Hi 
> How could I loop through the container to get all the keys.
> Eg:
>       For(int i=0;i< beambook.count();++i)
> Or 
>       Beambook:: iter1 = beambook.begin(), iter2 = beambook.end();
>
> My requirement is to loop through the size and list compositeKey vs list of element Ids
>
>  Thanks,
> UJ    
>
> // define a multi_index_container with a composite key on
> typedef multi_index_container<
>     Beam_entry,
>     indexed_by<
>     //non-unique as some  might have more than ids
>     ordered_non_unique< 
>         composite_key<
>             Beam_entry,
>             member<Beam_entry,unsigned int,&Beam_entry::pid>,
>             member<Beam_entry,double,&Beam_entry::orientX>,
>             member<Beam_entry,double,&Beam_entry::orientY>,
>             member<Beam_entry,double,&Beam_entry::orientZ>,
>             member<Beam_entry,double,&Beam_entry::OffsetA>,
>             member<Beam_entry,double,&Beam_entry::OffsetB>
>             >
>     >,
>     ordered_unique< 
>     member<Beam_entry,unsigned int,&Beam_entry::eid>
>     >
>     >
> > beambook;

for (beambook::iterator iter = container.begin(), i_end = container.end(); iter != i_end; iter = container.upper_bound (get key from iter))