Re: [boost] Re: [config] New workaround macro

From: John Maddock (jm_at_[hidden])
Date: 2003-04-12 05:26:07

>Ah! Then, grepping for that, I have found a usage for the new macro in
>tuple/detail/tuple_basic.hpp too.

Add cast.hpp to the list as well, maybe others.

> Thanks. There's just one thing I've cheated about: the above form is
> only suitable for the first parameter, as it lacks a comma.
>
> Should we have two separate macros?
>
> #ifndef BOOST_NO_EXPLICIT_FUNCTION_TEMPLATE_ARGUMENTS
> #  define BOOST_DUMMY_DEFAULTED_PARAM(t)
> #  define BOOST_APPEND_DUMMY_DEFAULTED_PARAM(t)
> #else
> #  define BOOST_DUMMY_DEFAULTED_PARAM(t) t* = 0
> #  define BOOST_APPEND_DUMMY_DEFAULTED_PARAM(t) \
>                , BOOST_DUMMY_DEFAULTED_PARAM(t)
> #endif
>
> or is there a better solution?

Not really, are ther really cases that require two args ?

We need these added to the config docs as well if/when they are added (into
the helper macros section).

> >As long as the authors of those libraries are prepared to use it and make
> >the necessary changes...
>
> Yeah, I can vouch for one of those libraries :-)

Good point :-)

John.