Boost logo

Boost :

Subject: Re: [boost] [Preprocessor] Adding variadic macros support
From: Edward Diener (eldiener_at_[hidden])
Date: 2010-11-24 07:55:17

On 11/24/2010 3:22 AM, Mathias Gaunard wrote:
> Variadic macros would allow to support tuples better in Boost.PP, as it
> would not be necessary to specify the size of the tuple, and it could be
> possible to provide other nice features around tuples.
> Other possible applications could be to accept the sequence (a)(b, c,
> d)(e) as being the same as (a)((b, c, d))(e).
> If you think other things could be improved in PP with variadic macros,
> feel free to point out where.
> The question is: how should it be done?
> Should the new macros be named, say, BOOST_PPV_*? Should the macros in
> BOOST_PP_* be "overloaded" on arity (a possibility with variadic macros)
> so as to exhibit both the old and new interface?

Please see my variadic_macro_data library in the sandbox. I have already
addressed the problem of uniting variadic macros with Boost PP there as
well as providing the support for tuples which you suggest in your
opening paragraph above.

Boost list run by bdawes at, gregod at, cpdaniel at, john at