The BOOST_PP_LIMIT_ITERATION
macro defines the maximum number of local and file
iterations.
Usage
BOOST_PP_LIMIT_ITERATION
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.