Re: [Boost-users] PP: commas issues

"MM" writes:

Hi,

I am trying to generate a list of instances of the same template with different pairs of args, to populate a mpl container, with PP

so, mpl::vector< tmpl, tmpl, tmpl >

i'm having trouble with the commas.

I successfully generate the pp sequence (tmpl)(tmpl) (tmpl)

but from this to get the enumeration, it's impossible using SEQ_ENUM, because the sequence contains commas

MM You could use something like:

#include #include #define SEQ (A)(B)(C) BOOST_PP_SEQ_ENUM(SEQ) #define TMPL(elem) (tmpl) #define MACRO(z,n,data) TMPL(BOOST_PP_SEQ_ELEM(n, SEQ)) BOOST_PP_ENUM(3, MACRO, ) This also has the benefit of separating the class names from what you want to do with them. HTH, Philipp Moeller