[boost] [parameter] Redefining BOOST_PARAMETER_MAX_ARITY

Should I expect to be able to redefine BOOST_PARAMETER_MAX_ARITY and be able to compile? <http://www.boost.org/doc/libs/1_36_0/libs/parameter/doc/html/reference.html#boost-parameter-max-arity> For example using, #define BOOST_PARAMETER_MAX_ARITY 6 #include <boost/parameter/name.hpp> #include <boost/parameter/preprocessor.hpp> // ... code here ... does not compile. Before I spend time digging into the source to figure out the problem I thought I'd post in case the answer was 'no'. Also I wonder if there is some theoretical or practical upper limit? Thanks, Jamie