Re: [Boost-users] Template type to constant string

From: Mike Marchywka (marchywka_at_[hidden])
Date: 2007-11-06 07:01:01

I happen to skim this thread and had a related question.

> > > Maybe you can try with typeid(t_type).name(), included in <typeinfo>.

Is this evaluated at compile time ( I thought the OP said something about
macros )? I was looking for template programming ideas and I hit
a case where I needed compile-time type information and I didn't know
offhand how to do it so I gave up ( for some reason a specialization
didn't seem like an easy thing to do).

Does anyone have a good reference link on interesting (portable) template 
programming
approaches ? I found a few things on google but nothing stuck me as
being a complete reference.

Thanks.

>From: "Olivier Tournaire" <olitour_at_[hidden]>
>Reply-To: boost-users_at_[hidden]
>To: boost-users_at_[hidden]
>Subject: Re: [Boost-users] Template type to constant string
>Date: Tue, 6 Nov 2007 01:53:04 +0100
>
>Hi,
>
>This is not MS specific. It works with many compilers, and at least with 
>gcc
>(do not remember the exact version). However, I think "name()" return value
>is not standard and can vary between platforms.
>
>Regards
>
>2007/11/6, Robert Dailey <rcdailey_at_[hidden]>:
> >
> > Thanks!
> >
> > This seems to work, however looking at the implementation of <typeinfo> 
>I
> > don't see the keyword "typeid" anywhere. Where in the world is it coming
> > from? Is <typeinfo> part of the standard? It's obviously not in STL 
>since it
> > lacks the namespace. I'm a little confused as to where the file comes 
>from,
> > as I've never heard of it before. I'm guessing it is a microsoft 
>specific
> > thing.
> >
> > Let me know. Thanks again.
> >
> > On 11/5/07, Olivier Tournaire <olitour_at_[hidden]> wrote:
> > >
> > > Maybe you can try with typeid(t_type).name(), included in <typeinfo>.
> > >
> > > Regards,
> > >
> > > Olivier
> > >
> > > 2007/11/5, Robert Dailey < rcdailey_at_[hidden] >:
> > > >
> > > > Hi,
> > > >
> > > > As you know, with Microsoft VS preprocessor operators you can 
>convert
> > > > a type passed in to a macro to a string. For example:
> > > >
> > > > #define TO_STRING( type ) #type
> > > >
> > > > I would like to do the same thing with a template type:
> > > >
> > > > template< typename t_type >
> > > > void TO_STRING()
> > > > {
> > > >   // Do something here with t_type to make it a string and then 
>return
> > > > it
> > > > }
> > > >
> > > > Is there something in boost that can facilitate the behavior I'm
> > > > describing? Thanks.
> > > >
> > > > _______________________________________________
> > > > Boost-users mailing list
> > > > Boost-users_at_[hidden]
> > > > http://lists.boost.org/mailman/listinfo.cgi/boost-users
> > > >
> > >
> > >
> > >
> > > --
> > > Le temps des cerises reviendra. Dans l'immédiat, c'est le temps des
> > > noyaux. Courage.
> > > _______________________________________________
> > > Boost-users mailing list
> > > Boost-users_at_[hidden]
> > > http://lists.boost.org/mailman/listinfo.cgi/boost-users
> > >
> >
> >
> > _______________________________________________
> > Boost-users mailing list
> > Boost-users_at_[hidden]
> > http://lists.boost.org/mailman/listinfo.cgi/boost-users
> >
>
>
>
>--
>Le temps des cerises reviendra. Dans l'immédiat, c'est le temps des noyaux.
>Courage.

>_______________________________________________
>Boost-users mailing list
>Boost-users_at_[hidden]
>http://lists.boost.org/mailman/listinfo.cgi/boost-users

_________________________________________________________________
See what you’re getting into…before you go there 
http://newlivehotmail.com/?ocid=TXT_TAGHM_migration_HM_viral_preview_0507