id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
2674	request to make BOOST_PARAMETER_MAX_ARITY re-defineable	Frank Mori Hess	Daniel Wallin	I'd like to be able to increase BOOST_PARAMETER_MAX_ARITY in my library header if needed, and then include the Boost.Parameter library without worrying that the user might have already included Boost.Parameter headers and thus made my attempt to increase the max arity futile.  I believe the Boost.Function library has this feature.  My use case is trying to apply Boost.Parameter to the boost::signals2::signal class, which currently has 7 template type parameters (but BOOST_PARAMETER_MAX_ARITY defaults to 5).	Feature Requests	new	Boost 1.38.0	parameter	Boost 1.37.0	Problem