Re: [Boost-users] [preprocessor] using ENUM_PARAMS to generate macro call arguments

Subject: Re: [Boost-users] [preprocessor] using ENUM_PARAMS to generate macro call arguments
From: Daniel James (dnljms_at_[hidden])
Date: 2011-06-15 18:29:35

On 15 June 2011 14:15, Krzysztof Czainski <1czajnik_at_[hidden]> wrote:

> My goal here is to keep INVOKE as simple and non-redundant as possible,
> because alternative versions of INVOKE for alternative sets of given macros
> will be added later on.
> Now the call A2(1,2) doesn't compile. If I understand correctly, the reason
> is ENUM_PARAMS(n_args,arg) is passed to M2, while I need the result of macro
> expansion of ENUM_PARAMS(...)  to be passed to M2. So my question is: Is
> there a way around this?

Maybe BOOST_PP_EXPAND?

http://www.boost.org/libs/preprocessor/doc/ref/expand.html