id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
3395	Assignment to optional is not possible if operator& is overriden	Andrey Semashev	Fernando Cacciola	"The assignment operator for optional< T > uses T::operator& to dispatch the call between assign_expr functions. This dispatch breaks if the T::operator& returns something else than T*. This is the case with ATL types, such as CComBSTR.

The suggested fix is to replace call to operator& with addressof. Please, find the attached patch against the 1.40 release.
"	Bugs	closed	Boost 1.41.0	optional	Boost 1.40.0	Problem	fixed	optional assignment