boost::functionはデフォルトで10個までしか引数をサポートしていない。
増やすには例えば:
# define BOOST_FUNCTION_NUM_ARGS 11
# include <boost/function/detail/maybe_include.hpp>
# undef BOOST_FUNCTION_NUM_ARGS
# define BOOST_FUNCTION_NUM_ARGS 12
# include <boost/function/detail/maybe_include.hpp>
# undef BOOST_FUNCTION_NUM_ARGS