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

From: Olivier Tournaire (olitour_at_[hidden])
Date: 2007-11-06 07:25:58

2007/11/6, Mike Marchywka <marchywka_at_[hidden]>:
>
>
> 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 )?

No, evaluated at run time

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.
>
>
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-- 
Le temps des cerises reviendra. Dans l'immédiat, c'est le temps des noyaux.
Courage.