----- Mensaje original ----- De: "David B. Held" <dheld@codelogicconsulting.com> Fecha: Martes, Febrero 3, 2004 8:00 pm Asunto: [boost] Re: 4 more associative containers.

"Jeremy Maitin-Shepard" <jbms@attbi.com> wrote in message news:87u128yr3g.fsf@jbms.ath.cx...

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I believe that a library named ``indexed_set,'' which has been proposed and is pending formal review, provides this functionality in addition to supporting multiple indices.

Are you sure it does the same thing? I was under the impression that Joaquin's library lets you define *additional* indexes, but what if you just want to use an existing index, but it is comparable to something other than the key_type?

indexed_set does provide this functionality (multiple indices aside.) See http://tinyurl.com/2vu5g, section "Special lookup operations". See also http://tinyurl.com/3dyzh, section "Index set operations" for a formal definition of the kind of special lookup operations provided. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo