[Boost-users] [multi-index] member arguments [Was: how to use in herit member as index]

From: Filip Konvička (filip.konvicka_at_[hidden])
Date: 2007-06-27 17:56:05

> If you're using Boost 1.34, then you can simply use
>
>   hashed_unique<
>       tag<userid>,
>       member<Peer,std::string,&Peer::userid> >
>   
Hi,

I'm just curious - is there a reason why "member" takes 3 template 
parameters, and not just one, like in

      member<&Peer::userid>

? The first two types can be extracted from the member pointer, so I 
find this a bit redundant...

Thanks,
Filip