hkaiser: I think #5235 is almost done
Please see this, (https://github.com/srinivasyadav18/hpx/compare/fixing_datapar...srinivasyadav18:datapar_test)
my local branch I made for debugging circle ci, there some problem
with vc in circle ci, (its broken and its using vc 1.3), in this branch I am using latest(1.4.1)
which work fine ( I disabled COMPILER_WARNINGS_AS_ERRORS)