Re: [boost] [multi_index] composite keys: request for advice

From: Rob Stewart (stewart_at_[hidden])
Date: 2004-04-26 15:16:38

From: Joaquin M Lopez Munoz <joaquin_at_[hidden]>
> 
> Composite keys can be specified by a new construct
> called composite_key in the following manner:
> 
> struct record
> {
>   int first;
>   int second
>   int third;
> };
> 
> multi_index_container<
>   record,
>   indexed_by<
>     composite_key<
>       record, //base value
>       member<record,int,&record::first>, // first key

Would that you could make this work to avoid the duplication and
chance for errors:

        member< &record::first >

I know a function template can deduce the other types, but I
can't think of how to make it work here.

-- 
Rob Stewart                           stewart_at_[hidden]
Software Engineer                     http://www.sig.com
Susquehanna International Group, LLP  using std::disclaimer;