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

2011/6/16 Daniel James

On 15 June 2011 14:15, Krzysztof Czainski <1czajnik@gmail.com> 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

Exactly what I needed, thanks a lot, Daniel ;-)

I attach the complete solution using EXPAND in case anyone is interested. Cheers, Kris