From: Daniel Arndt <arndtd@ornl.gov>
Date: Fri, 18 Oct 2019 14:54:18 +0000 (-0400)
Subject: Use empty function object for copier
X-Git-Tag: v9.2.0-rc1~966^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F8891%2Fhead;p=dealii.git

Use empty function object for copier
---

diff --git a/examples/step-51/step-51.cc b/examples/step-51/step-51.cc
index 269ef7ec13..433632338d 100644
--- a/examples/step-51/step-51.cc
+++ b/examples/step-51/step-51.cc
@@ -1035,7 +1035,7 @@ namespace Step51
                unsigned int &                                        data) {
           this->postprocess_one_cell(cell, scratch, data);
         },
-        [](const unsigned int &) {},
+        std::function<void(const unsigned int &)>(),
         scratch,
         0U);
     }
diff --git a/examples/step-9/step-9.cc b/examples/step-9/step-9.cc
index 7a19ff1ecb..836afd2be5 100644
--- a/examples/step-9/step-9.cc
+++ b/examples/step-9/step-9.cc
@@ -955,7 +955,7 @@ namespace Step9
     WorkStream::run(dof_handler.begin_active(),
                     dof_handler.end(),
                     &GradientEstimation::template estimate_cell<dim>,
-                    [](const EstimateCopyData &) {},
+                    std::function<void(const EstimateCopyData &)>(),
                     EstimateScratchData<dim>(dof_handler.get_fe(),
                                              solution,
                                              error_per_cell),