Re: [boost] [typeof] preprocessor reentrancy

From: Cromwell Enage (sponage_at_[hidden])
Date: 2006-01-14 12:19:22

--- Arkadiy Vertleyb wrote:
> "Cromwell Enage" wrote
> > I'm also studying file iteration so I can see if
> > that helps me out.
> 
> File iteration works good with typeof, and you don't
> have to explicitly specify IDs.  The only problem --
> you can't use the file iteration in a macro.

Understood.

> The following example works (vc71):
> 
> ----------------
> #define BOOST_TYPEOF_COMPLIANT
> #include <boost/typeof/typeof.hpp>
> 
> template<int n, short m> class x
> {};
> 
> #define seq (int)(short)
> #define MACRO(z, n, text) (BOOST_PP_SEQ_ELEM(n,
> text))
> BOOST_TYPEOF_REGISTER_TEMPLATE(x,
>     BOOST_PP_REPEAT(BOOST_PP_SEQ_SIZE(seq), MACRO,
> seq))
> 
> typedef BOOST_TYPEOF((x<1, 2>())) type;
> type y;
> 
> int main()
> {}

Okay, I'll give it a roll.

                              Cromwell D. Enage

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