RE: [Boost-users] Boost.Preprocessor question

From: Paul Mensonides (pmenso57_at_[hidden])
Date: 2005-01-21 03:44:58

> -----Original Message-----
> From: boost-users-bounces_at_[hidden] 
> [mailto:boost-users-bounces_at_[hidden]] On Behalf Of Paul Mensonides

> #include <boost/preprocessor/repetition/enum.hpp>
> 
> #define index(z, n, _) n
> 
> unsigned char tmp[256] = { BOOST_PP_ENUM(256, index, ~) };
> 
> #undef index
> 
> (Note, however, that you can't go any higher than 256 repetitions.)

More specifically, the library cannot _directly_ generate more than 256
repetitions in one pass.  You can do something like this, for example:

#define index(z, n, offset) n + offset

unsigned char tmp[512] = { BOOST_PP_ENUM(256, index, 0), BOOST_PP_ENUM(256,
index, 256) };

#undef index

Regards,
Paul Mensonides