Re: [Boost-users] Correction: Using multi-index as container type in templatedclass

From: Joaquín Mª López Muñoz (joaquin_at_[hidden])
Date: 2007-09-21 02:23:14

Joaquín Mª López Muñoz ha escrito:

> Hi Paul,
>

[...]

> So, instead of
>
>   typedef typename mi::nth_index<0>::type mi_by_value;
>
> you can write
>
>   typedef typename nth_index<mi,0>::type mi_by_value;

Hello Paul, upon concidentally revisiting this same problem when answering
the post at http://lists.boost.org/boost-users/2007/09/30953.php , I've realized
that GCC has no issues with dependent nested types, the problem is that
you were missing a dependent template keyword:

  typedef typename mi::template nth_index<0>::type mi_by_value;

Of course, the resort to global nth_index<...> is also valid.

Sorry for the confusion,

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo