id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
3792	Boolean Metafunction for determining whether a type has been registered	Edward Diener <eld@…>	Peder Holt	The typeof library should have a boolean metafunction which can be used to determine whether a type has been registered or not. This would greatly aid in using typeof in template metaprogramming.	Support Requests	new	Boost 1.42.0	typeof	Boost 1.41.0	Problem