Re: [boost] Multi Index Container - key extractor on a member of a member

From: JOAQUIN LOPEZ MU?Z (joaquin_at_[hidden])
Date: 2007-12-25 17:12:26

----- Mensaje original -----
De: Avi Revivo <revivoavi_at_[hidden]>
Fecha: Martes, Diciembre 25, 2007 7:47 am
Asunto: Re: [boost] Multi Index Container - key extractor on a member 
of a member
Para: boost_at_[hidden]

> 
> Thank you very much for the fast reply,
> 
> If i have no problem adding a function that returns the value to 
> sort by (e.g. long GetClientId) and i use
> BOOST_MULTI_INDEX_CONST_MEM_FUN define key extractor. 
> 
> Would you suggest i use BOOST_MULTI_INDEX_CONST_MEM_FUN,write my 
> own custom key extractor or it does not matter in terms of
> performance (or anythingelse)?

>From the point of view of performance there shouldn't be
any difference between both approaches. So I guess it's a
matter of taste; I'd go for the custom extractor if
using BOOST_MULTI_INDEX_CONST_MEM_FUN somehow forces you
to change the design of your class or looks forced.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo