id summary reporter owner description type status milestone component version severity resolution keywords cc 1888 Why doesn't InputIterator require that reference is convertible to value_type? Eric Niebler jsiek "Bug title says it all. boost::InputIterator doesn't enforce any relationship between the reference and value_type associated types. Seems wrong to me, but perhaps there is a reason. It also doesn't check that the type of dereferencing an input iterator is reference. " Bugs new Boost 1.36.0 concept_check Boost 1.35.0 Problem