From: Martin Kronbichler <martin.kronbichler@uni-a.de>
Date: Sun, 18 Sep 2022 13:51:09 +0000 (+0200)
Subject: Make sure not to work with possibly uninitialized variables
X-Git-Tag: v9.5.0-rc1~958^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F14280%2Fhead;p=dealii.git

Make sure not to work with possibly uninitialized variables
---

diff --git a/tests/matrix_free/stokes_computation.cc b/tests/matrix_free/stokes_computation.cc
index baf0623f19..58a4c813df 100644
--- a/tests/matrix_free/stokes_computation.cc
+++ b/tests/matrix_free/stokes_computation.cc
@@ -256,7 +256,7 @@ namespace StokesClass
       // apply the top right block
       {
         LinearAlgebra::distributed::BlockVector<double> dst_tmp(dst);
-        dst_tmp.block(0) *= 0.0;
+        dst_tmp.block(0) = 0.0;
         stokes_matrix.vmult(utmp, dst_tmp); // B^T
         utmp.block(0) *= -1.0;
         utmp.block(0) += src.block(0);
diff --git a/tests/numerics/no_flux_18.cc b/tests/numerics/no_flux_18.cc
index 5bd134fdcf..7d42a17830 100644
--- a/tests/numerics/no_flux_18.cc
+++ b/tests/numerics/no_flux_18.cc
@@ -257,7 +257,7 @@ namespace StokesClass
       // apply the top right block
       {
         LinearAlgebra::distributed::BlockVector<double> dst_tmp(dst);
-        dst_tmp.block(0) *= 0.0;
+        dst_tmp.block(0) = 0.0;
         stokes_matrix.vmult(utmp, dst_tmp); // B^T
         utmp.block(0) *= -1.0;
         utmp.block(0) += src.block(0);