-----Original Message----- From: boost-bounces@lists.boost.org [mailto:boost-bounces@lists.boost.org] On Behalf Of Ryan Saunders
Hi Ryan.
typedef typename meta_func< typename T0::inner_type, typename T1::inner_type, typename T2::inner_type>::type;
I don't see a way to do this with any of the ENUM_XXX macros. Maybe something like ENUM_SPLIT_PARAMS(COUNT, PREF, SUFF) that would generate PREF ## n ## SUFF?
The ENUM_BINARY_PARAMS is the general form for this kind of stuff. You typically use it with INTERCEPT, such as: #include <boost/preprocessor/facilities/intercept.hpp> #include <boost/preprocessor/repetition/enum_binary_params.hpp> BOOST_PP_ENUM_BINARY_PARAMS( 3, typename T, ::inner_type BOOST_PP_INTERCEPT ) INTERCEPT (unsurpisingly) intercepts the numeric concatenation and expands to nothing. Normally the library avoids macros that have very specific uses. In fact, ENUM_PARAMS and ENUM_BINARY_PARAMS are probably the two most domain-specific macros in the library. If the usage scenario is too complex for ENUM_PARAMS or ENUM_BINARY_PARAMS (possibly with INTERCEPT), then you need to use the much more general form, ENUM. Regards, Paul Mensonides