[Boost-users] How to sort multi_index_container + composite_key + Sort by Vale. Is it possible?

Subject: [Boost-users] How to sort multi_index_container + composite_key + Sort by Vale. Is it possible?
From: Uthpal Urubail (uthpal.urubail_at_[hidden])
Date: 2013-05-16 15:58:57

Is it possible to sort the container by value? In below example by "member<Element_Entry,size_t,&Element_Entry::Id>"
Or also other keys like: Sort by "member<Element_Entry,size_t,&Element_Entry::Index>"

typedef multi_index_container<
    Element_Entry,
    indexed_by<
    ordered_non_unique< 
    composite_key<
    Element_Entry,
    member<Element_Entry,size_t,&Element_Entry::MatId>,
    member<Element_Entry,double,&Element_Entry::Thickness>,
    member<Element_Entry,double,&Element_Entry::Angle>,
    member<Element_Entry,size_t,&Element_Entry::Index>
    >
    >,
    ordered_unique< 
    member<Element_Entry,size_t,&Element_Entry::Id>
    >
    >
> ElementRecord;

Regards,
UJ