Re: [Boost-users] [Bind] arity of arbitrary object

From: Sohail Somani (s.somani_at_[hidden])
Date: 2007-01-17 02:14:29

-----Original Message-----
From: boost-users-bounces_at_[hidden] on behalf of Chris Uzdavinis
Sent: Tue 1/16/2007 9:30 PM
To: boost-users_at_[hidden]
Subject: Re: [Boost-users] [Bind] arity of arbitrary object
 
On 1/16/07, Sohail Somani <s.somani_at_[hidden]> wrote:
>  Ok the incomplete type was because there was no specialization of
> _bi::value<T> which occurs when the user actually supplies a value. Does
> this solve the problem then?

Thanks, that is pretty clever!  I was, however, holding onto a little
hope that the solution would have been a little easier or
straight-forward.  Utilizing implementation details like that makes me
simultaneously smile and cringe.  Watching this discussion unfold has
been rather enlightening.  My thanks to you and Peter.

-----------

You're welcome. Of course using implementation details like that totally sucks. But without a canned solution, what do you do? I think if you write a small python script to generate the required partial specializations, it wouldn't be so much work for a lot of gain.

I think maybe boost::function, boost::bind and boost::lambda all could stand from partially specializing some of the traits in the function_types library.

Sohail

PS: I don't mind having a shot at converting list0..N to using fusion::tuple, if someone is interested