id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
2482	msvc-9.0 unreferenced formal parameter warning when using boost::breadth_first_visit	Jürgen Hunold	jsiek	"Boost. 1.37.0 (maybe earlier) and Boost.Trunk trigger msvc "" warning C4100: 'b' : unreferenced formal parameter"" in concept_check.hpp(144) and in concept/detail/msvc.hpp(21) : warning C4100: 'x' : unreferenced formal parameter.

Full obfuscated template instation stack attached.

I've attached our patch against 1.37.0, a patch against current trunk for msvc.hpp and a patch showing that trunk and release version of boost/concept_check.hpp are different.
"	Patches	new	Boost 1.38.0	concept_check	Boost Release Branch	Problem		msvc concept_check warnings 9.0