The BOOST_PP_LIMIT_FOR macro
defines the maximum number of BOOST_PP_FOR repetitions.
Usage
BOOST_PP_LIMIT_FOR
Remarks
This macro expands by default to 256. The end-user can
change this to 512 or 1024 by defining this macro to either value
before including any library headers, as long as the end-user also
defines the BOOST_PP_LIMIT_MAG
macro to be equal to or greater than this value.