From 16de6907309e8306b6d4ca47ee42a6fd42da736d Mon Sep 17 00:00:00 2001
From: Martin Kronbichler <martin.kronbichler@it.uu.se>
Date: Tue, 30 Nov 2021 22:35:43 +0100
Subject: [PATCH] Do not use uninitialized variable in tests

---
 tests/matrix_free/multigrid_dg_periodic.cc               | 2 +-
 tests/matrix_free/multigrid_dg_sip_01.cc                 | 2 +-
 tests/matrix_free/multigrid_dg_sip_02.cc                 | 2 +-
 tests/matrix_free/parallel_multigrid.cc                  | 2 +-
 tests/matrix_free/parallel_multigrid_adaptive_01.cc      | 2 +-
 tests/matrix_free/parallel_multigrid_adaptive_03.cc      | 2 +-
 tests/matrix_free/parallel_multigrid_adaptive_05.cc      | 2 +-
 tests/matrix_free/parallel_multigrid_fullydistributed.cc | 2 +-
 tests/matrix_free/parallel_multigrid_mf.cc               | 2 +-
 9 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/tests/matrix_free/multigrid_dg_periodic.cc b/tests/matrix_free/multigrid_dg_periodic.cc
index 0ab4b763c2..09606de214 100644
--- a/tests/matrix_free/multigrid_dg_periodic.cc
+++ b/tests/matrix_free/multigrid_dg_periodic.cc
@@ -273,7 +273,7 @@ private:
   compute_inverse_diagonal()
   {
     data.initialize_dof_vector(inverse_diagonal_entries);
-    unsigned int dummy;
+    unsigned int dummy = 0;
     data.loop(&LaplaceOperator::local_diagonal_cell,
               &LaplaceOperator::local_diagonal_face,
               &LaplaceOperator::local_diagonal_boundary,
diff --git a/tests/matrix_free/multigrid_dg_sip_01.cc b/tests/matrix_free/multigrid_dg_sip_01.cc
index f3ae6632ab..381b615514 100644
--- a/tests/matrix_free/multigrid_dg_sip_01.cc
+++ b/tests/matrix_free/multigrid_dg_sip_01.cc
@@ -282,7 +282,7 @@ private:
   compute_inverse_diagonal()
   {
     data.initialize_dof_vector(inverse_diagonal_entries);
-    unsigned int dummy;
+    unsigned int dummy = 0;
     data.loop(&LaplaceOperator::local_diagonal_cell,
               &LaplaceOperator::local_diagonal_face,
               &LaplaceOperator::local_diagonal_boundary,
diff --git a/tests/matrix_free/multigrid_dg_sip_02.cc b/tests/matrix_free/multigrid_dg_sip_02.cc
index 8f610c4509..609cc72576 100644
--- a/tests/matrix_free/multigrid_dg_sip_02.cc
+++ b/tests/matrix_free/multigrid_dg_sip_02.cc
@@ -285,7 +285,7 @@ private:
   compute_inverse_diagonal()
   {
     data.initialize_dof_vector(inverse_diagonal_entries);
-    unsigned int dummy;
+    unsigned int dummy = 0;
     data.cell_loop(&LaplaceOperator::local_diagonal_cell,
                    this,
                    inverse_diagonal_entries,
diff --git a/tests/matrix_free/parallel_multigrid.cc b/tests/matrix_free/parallel_multigrid.cc
index b9d7f65c98..f0ab3f8a76 100644
--- a/tests/matrix_free/parallel_multigrid.cc
+++ b/tests/matrix_free/parallel_multigrid.cc
@@ -222,7 +222,7 @@ private:
   compute_inverse_diagonal()
   {
     data.initialize_dof_vector(inverse_diagonal_entries);
-    unsigned int dummy;
+    unsigned int dummy = 0;
     data.cell_loop(&LaplaceOperator::local_diagonal_cell,
                    this,
                    inverse_diagonal_entries,
diff --git a/tests/matrix_free/parallel_multigrid_adaptive_01.cc b/tests/matrix_free/parallel_multigrid_adaptive_01.cc
index 7647e3c795..1dfeaf273f 100644
--- a/tests/matrix_free/parallel_multigrid_adaptive_01.cc
+++ b/tests/matrix_free/parallel_multigrid_adaptive_01.cc
@@ -330,7 +330,7 @@ private:
   compute_inverse_diagonal()
   {
     data.initialize_dof_vector(inverse_diagonal_entries);
-    unsigned int dummy;
+    unsigned int dummy = 0;
     data.cell_loop(&LaplaceOperator::local_diagonal_cell,
                    this,
                    inverse_diagonal_entries,
diff --git a/tests/matrix_free/parallel_multigrid_adaptive_03.cc b/tests/matrix_free/parallel_multigrid_adaptive_03.cc
index 422fa58860..c5dc325f5d 100644
--- a/tests/matrix_free/parallel_multigrid_adaptive_03.cc
+++ b/tests/matrix_free/parallel_multigrid_adaptive_03.cc
@@ -337,7 +337,7 @@ private:
   compute_inverse_diagonal()
   {
     data.initialize_dof_vector(inverse_diagonal_entries);
-    unsigned int dummy;
+    unsigned int dummy = 0;
     data.cell_loop(&LaplaceOperator::local_diagonal_cell,
                    this,
                    inverse_diagonal_entries,
diff --git a/tests/matrix_free/parallel_multigrid_adaptive_05.cc b/tests/matrix_free/parallel_multigrid_adaptive_05.cc
index bd18147d1e..6cb67244a7 100644
--- a/tests/matrix_free/parallel_multigrid_adaptive_05.cc
+++ b/tests/matrix_free/parallel_multigrid_adaptive_05.cc
@@ -334,7 +334,7 @@ private:
   compute_inverse_diagonal()
   {
     data.initialize_dof_vector(inverse_diagonal_entries);
-    unsigned int dummy;
+    unsigned int dummy = 0;
     data.cell_loop(&LaplaceOperator::local_diagonal_cell,
                    this,
                    inverse_diagonal_entries,
diff --git a/tests/matrix_free/parallel_multigrid_fullydistributed.cc b/tests/matrix_free/parallel_multigrid_fullydistributed.cc
index 27b0a321f3..fc068d8ae7 100644
--- a/tests/matrix_free/parallel_multigrid_fullydistributed.cc
+++ b/tests/matrix_free/parallel_multigrid_fullydistributed.cc
@@ -226,7 +226,7 @@ private:
   compute_inverse_diagonal()
   {
     data.initialize_dof_vector(inverse_diagonal_entries);
-    unsigned int dummy;
+    unsigned int dummy = 0;
     data.cell_loop(&LaplaceOperator::local_diagonal_cell,
                    this,
                    inverse_diagonal_entries,
diff --git a/tests/matrix_free/parallel_multigrid_mf.cc b/tests/matrix_free/parallel_multigrid_mf.cc
index e75b03cc9f..60467a8c65 100644
--- a/tests/matrix_free/parallel_multigrid_mf.cc
+++ b/tests/matrix_free/parallel_multigrid_mf.cc
@@ -222,7 +222,7 @@ private:
   compute_inverse_diagonal()
   {
     data.initialize_dof_vector(inverse_diagonal_entries);
-    unsigned int dummy;
+    unsigned int dummy = 0;
     data.cell_loop(&LaplaceOperator::local_diagonal_cell,
                    this,
                    inverse_diagonal_entries,
-- 
2.39.5