From: Wolfgang Bangerth <bangerth@colostate.edu>
Date: Mon, 6 Dec 2021 18:27:18 +0000 (-0700)
Subject: Take tokens as pointers, not references to pointers.
X-Git-Tag: v9.4.0-rc1~769^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F13032%2Fhead;p=dealii.git

Take tokens as pointers, not references to pointers.
---

diff --git a/include/deal.II/base/work_stream.h b/include/deal.II/base/work_stream.h
index 6c5e94adca..13e23c3f8b 100644
--- a/include/deal.II/base/work_stream.h
+++ b/include/deal.II/base/work_stream.h
@@ -517,7 +517,7 @@ namespace WorkStream
                worker),
            copier_exists =
              static_cast<bool>(std::function<void(const CopyData &)>(copier))](
-            ItemType *&current_item) {
+            ItemType *current_item) {
             // we need to find an unused scratch data object in the list that
             // corresponds to the current thread and then mark it as used. if
             // we can't find one, create one
@@ -619,7 +619,7 @@ namespace WorkStream
         auto tbb_copier_filter = tbb::make_filter<ItemType *, void>(
           tbb::filter::serial,
           [copier = std::function<void(const CopyData &)>(copier)](
-            ItemType *&current_item) {
+            ItemType *current_item) {
             if (copier)
               {
                 // Initiate copying data. For the same reasons as in the worker