[container.matrix-view] fix test

dune/xt/la/container/matrix-view.hh

@@ -87,7 +87,7 @@ public:
     , past_last_row_(0)
     , first_col_(0)
     , past_last_col_(0)
-    , pattern_(nullptr)
+    , pattern_(std::shared_ptr<SparsityPatternDefault>(nullptr))
   {
     DUNE_THROW(XT::Common::Exceptions::you_are_using_this_wrong, "This constructor does not make sense for MatrixView");
   }
@@ -102,7 +102,7 @@ public:
     , past_last_row_(0)
     , first_col_(0)
     , past_last_col_(0)
-    , pattern_(nullptr)
+    , pattern_(std::shared_ptr<SparsityPatternDefault>(nullptr))
   {
     DUNE_THROW(XT::Common::Exceptions::you_are_using_this_wrong, "This constructor does not make sense for MatrixView");
   }
@@ -118,7 +118,7 @@ public:
     , past_last_row_(past_last_row)
     , first_col_(first_col)
     , past_last_col_(past_last_col)
-    , pattern_(nullptr)
+    , pattern_(std::shared_ptr<SparsityPatternDefault>(nullptr))
   {}
 
   size_t row_index(const size_t ii) const

dune/xt/la/test/pattern.cc

@@ -111,15 +111,19 @@ GTEST_TEST(SparsityPatternDefaultTest, test_creation_functions)
   EXPECT_TRUE(diagonal_patt.size() == ROWS);
   EXPECT_TRUE(subdiagonal_patt.size() == ROWS);
   for (size_t ii = 0; ii < ROWS; ++ii) {
-    if (ii < COLS)
+    if (ii < COLS) {
       EXPECT_TRUE(diagonal_patt.contains(ii, ii));
-    if (ii > 0)
+    }
+    if (ii > 0) {
       EXPECT_TRUE(subdiagonal_patt.contains(ii, ii - 1));
+    }
     for (size_t jj = 0; jj < COLS; ++jj) {
-      if (jj != ii)
+      if (jj != ii) {
         EXPECT_FALSE(diagonal_patt.contains(ii, jj));
-      if (jj != ii - 1)
+      }
+      if (jj != ii - 1) {
         EXPECT_FALSE(subdiagonal_patt.contains(ii, jj));
+      }
     } // jj
   } // ii