adapted transform loop

transform_loop.hpp

    namespace detail {
        template <typename Iter>
        struct transform_loop
        {
            template <typename InIterB, typename InIterE, typename OutIter, typename F>
            HPX_HOST_DEVICE HPX_FORCEINLINE static util::in_out_result<InIterB, OutIter>
            call(InIterB first, InIterE last, OutIter dest, F&& f)
            {
                for (/* */; first != last; (void) ++first, ++dest)
                {
                    *dest = hpx::util::invoke(std::forward<F>(f), first);
                }
                return util::in_out_result<InIterB, OutIter>(std::move(first), std::move(dest));
            }
        };
    }    // namespace detail