Re: [boost] [multi_index + mpl + bind] Regression?

From: JOAQUIN LOPEZ MU?Z (joaquin_at_[hidden])
Date: 2004-09-25 13:19:57

Hi again Volodya, after thinking this over I'm
not so sure the mpl::deref thing has anything to do
with your problem --still, it'd be good to know
whether it has some impact, if you can do the test
locally. I'm afraid we're in Alexsey's hands to
solve this out. BTW, boost/bind/arg.hpp is deceivingly
simple I can't figure out how its inclusion can
make a difference.

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo

----- Mensaje original -----
De: JOAQUIN LOPEZ MU?Z <joaquin_at_[hidden]>
Fecha: Sábado, Septiembre 25, 2004 3:56 pm
Asunto: Re: [boost] [multi_index + mpl + bind] Regression?

> Vladimir, I don't have my compiler handy right
> now, but I think this is due to an overlook when
> doing the adaptation to the new MPL. In particular,
> the line 50 in boost/multi_index/detail/node_type.hpp:
> 
> typedef typename IndexSpecifierIterator::type index_specifier;
> 
> should be changed to
>    
> typedef typename mpl::deref<IndexSpecifierIterator>::type 
> index_specifier;
> 
> (also, the corresponginf #include <boost/mp/defer.hpp>
> must be inserted)
> Could you please try this locally and report the results?
> If the problem is solved, I'll commit something along this
> line next Monday.
> 
> I don't know the rationale for having to use deref, since
> I thought these two expressions are equivalent, but there
> must be some difference, for Alexsey changed some of the
> code in multi_index to do that when mergien the new MPL.
> 
> Joaquín M López Muñoz
> Telefónica, Investigación y Desarrollo
> 
> 
> ----- Mensaje original -----
> De: Vladimir Prus <ghost_at_[hidden]>
> Fecha: Sábado, Septiembre 25, 2004 2:41 pm
> Asunto: [boost] [multi_index + mpl + bind] Regression?
> 
> > 
> > The attached code, which use the multi_index library, produces 
> > screens of 
> > errors from mpl.  The STLfilted log is attached too.
> > 
> > Commenting out #include <boost/bind/arg.hpp> makes the error go 
> > away, as well 
> > as including it after multi_index.
> > 
> > This happens with:
> > gcc version 3.3.4 (Debian 1:3.3.4-6sarge1)
> > gcc version 3.4.1 (Debian 3.4.1-4sarge1)
> > 
> > The code used to work some time ago, but I can't give the exact 
> date.> 
> > I've tried too look at the problem, but got lost in MPL internals.
> > 
> > - Volodya
> > 
> 


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