id summary reporter owner description type status milestone component version severity resolution keywords cc 1992 boost::mpl::zip_view does not support use as a metafunction with ::type John Bytheway anonymous "According to the [http://www.boost.org/doc/libs/1_35_0/libs/mpl/doc/refmanual/zip-view.html zip_view documentation] (under Expression Semantics) you can use zip_view as a metafunction (i.e. `zip_view::type` as well as just `zip_view`), but this doesn't work. The zip_view class contains no definition of type, so it couldn't possibly work. I attach an example program exhibiting the bug and a trivial patch for zip_view.hpp which I believe defines type appropriately, fixing the bug." Bugs closed Boost 1.43.0 mpl Boost 1.43.0 Problem fixed