Re: [Boost-users] [fusion] sequence conversion

From: David Abrahams (dave_at_[hidden])
Date: 2008-07-22 20:11:48

on Mon Jul 21 2008, Daryle Walker <darylew-AT-hotmail.com> wrote:

> On Jul 20, 2008, at 9:04 PM, David Abrahams wrote:
>
>> on Sun Jul 20 2008, Daryle Walker <darylew-AT-hotmail.com> wrote:
>>
>>> I think that MPL lists are limited to 20 elements total.
>>
>> MPL lists are infinitely extensible (at least up to the limitations of
>> your compiler.)  There are numbered forms for lists of any practical
>> length longer than 20 elements, and you can always construct longer
>> lists by catenating them.  However, it's nearly always more
>> efficient to
>> use MPL vector than MPL list.
>
> I meant "list" in a generic sense.  (I actually did start with a
> mpl::list, but switched to a mpl::vector because some operations
> weren't supported otherwise.)  I think my needs are "impractical";
> the numbered-form lists stop at around 50, and I'll need to go to
> nearly 70 (until 128-bit types come forth).  How do you concatenate
> lists, hopefully so I wouldn't have to change the code that expects a
> "normal" sized list?

I might user joint_view if I were you.

-- 
Dave Abrahams
BoostPro Computing
http://www.boostpro.com