diff --git a/.clang-tidy b/.clang-tidy
index 7db6dba41c9ae5919b9470998799b8c61a2cbd62..ff349ead9c83e28ccccff7b13e2b85de075ba47c 100644
--- a/.clang-tidy
+++ b/.clang-tidy
@@ -5,3 +5,10 @@ WarningsAsErrors: ''
 HeaderFilterRegex: '.*'
 AnalyzeTemporaryDtors: false
 FormatStyle:     file
+CheckOptions:
+  - key:             google-readability-braces-around-statements.ShortStatementLines
+    value:           '1'
+  - key:             hicpp-braces-around-statements.ShortStatementLines
+    value:           '1'
+  - key:             readability-braces-around-statements.ShortStatementLines
+    value:           '1'
diff --git a/Applications/DataExplorer/Base/CheckboxDelegate.h b/Applications/DataExplorer/Base/CheckboxDelegate.h
index be4449ac56a6f037f1e932de1a15e49f75f421f0..4d876b97d2a53b6cc8c68b0338811cb672bc5648 100644
--- a/Applications/DataExplorer/Base/CheckboxDelegate.h
+++ b/Applications/DataExplorer/Base/CheckboxDelegate.h
@@ -31,7 +31,7 @@ class CheckboxDelegate : public QItemDelegate
 
 public:
     /// \brief Constructor
-    CheckboxDelegate(QObject* parent = nullptr);
+    explicit CheckboxDelegate(QObject* parent = nullptr);
 
     /// \brief Paints a checkbox. This overrides the default painting of a combo box.
     void paint(QPainter* painter, const QStyleOptionViewItem& option,
diff --git a/Applications/DataExplorer/Base/ColorPickerPushButton.h b/Applications/DataExplorer/Base/ColorPickerPushButton.h
index 0e53871a4eb4dc2f251ba7e95e6a19482f160f60..040a9638d54350c75743c5d72d30fa92b0bd8bfa 100644
--- a/Applications/DataExplorer/Base/ColorPickerPushButton.h
+++ b/Applications/DataExplorer/Base/ColorPickerPushButton.h
@@ -30,7 +30,7 @@ class ColorPickerPushButton : public QPushButton
     Q_OBJECT
 
 public:
-    ColorPickerPushButton(QWidget* parent = nullptr);
+    explicit ColorPickerPushButton(QWidget* parent = nullptr);
 
 public slots:
     /// Calls the QColorDialog
diff --git a/Applications/DataExplorer/Base/QNonScalableGraphicsTextItem.h b/Applications/DataExplorer/Base/QNonScalableGraphicsTextItem.h
index 5c0c66f711d255baa0568cdf253bdae4777a3c59..80dd621ff932572ac039e92b83b60292aa284598 100644
--- a/Applications/DataExplorer/Base/QNonScalableGraphicsTextItem.h
+++ b/Applications/DataExplorer/Base/QNonScalableGraphicsTextItem.h
@@ -24,9 +24,9 @@
 class QNonScalableGraphicsTextItem : public QGraphicsTextItem
 {
 public:
-    QNonScalableGraphicsTextItem(QGraphicsItem* parent = nullptr);
-    QNonScalableGraphicsTextItem(const QString& text,
-                                 QGraphicsItem* parent = nullptr);
+    explicit QNonScalableGraphicsTextItem(QGraphicsItem* parent = nullptr);
+    explicit QNonScalableGraphicsTextItem(const QString& text,
+                                          QGraphicsItem* parent = nullptr);
     ~QNonScalableGraphicsTextItem() override;
 
     void paint(QPainter* painter,
diff --git a/Applications/DataExplorer/Base/QValueTooltipSlider.h b/Applications/DataExplorer/Base/QValueTooltipSlider.h
index ff41723c530a1319bcd936e3d24f32d73551b754..e62784b4ec7143b45ccc24fdc55eb1bac0dffef3 100644
--- a/Applications/DataExplorer/Base/QValueTooltipSlider.h
+++ b/Applications/DataExplorer/Base/QValueTooltipSlider.h
@@ -23,7 +23,7 @@ class QValueTooltipSlider : public QSlider
     Q_OBJECT
 
 public:
-    QValueTooltipSlider(QWidget* parent = nullptr);
+    explicit QValueTooltipSlider(QWidget* parent = nullptr);
 
 public slots:
     void setTooltipValue(int value);
diff --git a/Applications/DataExplorer/Base/StrictDoubleValidator.h b/Applications/DataExplorer/Base/StrictDoubleValidator.h
index d447e1d7ae5d99a2fe260254923a989f15e6c96c..6ad1e9d41b3990e71519d94cd2af9cd3aed6026e 100644
--- a/Applications/DataExplorer/Base/StrictDoubleValidator.h
+++ b/Applications/DataExplorer/Base/StrictDoubleValidator.h
@@ -26,8 +26,8 @@ public:
         QDoubleValidator( min, max, decimals, parent)
     {}
 
-    StrictDoubleValidator ( QObject* parent = nullptr) :
-        QDoubleValidator( parent)
+    explicit StrictDoubleValidator(QObject* parent = nullptr)
+        : QDoubleValidator(parent)
     {}
 
     QValidator::State validate(QString& input, int& pos) const override
diff --git a/Applications/DataExplorer/Base/TreeModel.h b/Applications/DataExplorer/Base/TreeModel.h
index 2e063ce6c869169c80d1f2939a1218f09a32e788..797f434229d41d5fb98343213a446bb72614b2bf 100644
--- a/Applications/DataExplorer/Base/TreeModel.h
+++ b/Applications/DataExplorer/Base/TreeModel.h
@@ -31,7 +31,7 @@ class TreeModel : public QAbstractItemModel
     Q_OBJECT
 
 public:
-    TreeModel(QObject* parent = nullptr);
+    explicit TreeModel(QObject* parent = nullptr);
     ~TreeModel() override;
 
     QVariant data(const QModelIndex& index, int role) const override;
diff --git a/Applications/DataExplorer/Base/TreeModelIterator.h b/Applications/DataExplorer/Base/TreeModelIterator.h
index d309e4412718f8553506c518a2d28eb8ea08aa96..9d0c91d84bb338cba2ef6f9c2e6a6368cd63780b 100644
--- a/Applications/DataExplorer/Base/TreeModelIterator.h
+++ b/Applications/DataExplorer/Base/TreeModelIterator.h
@@ -35,7 +35,7 @@ class TreeModelIterator
 {
 public:
     /// \brief Constructor. Provide a tree model to iterate over.
-    TreeModelIterator(TreeModel* model);
+    explicit TreeModelIterator(TreeModel* model);
 
     /// \brief Dereferencing the iterator to retrieve the current TreeItem.
     /// Returns nullptr if the iterator is at the end.
diff --git a/Applications/DataExplorer/DataView/AddLayerToMeshDialog.h b/Applications/DataExplorer/DataView/AddLayerToMeshDialog.h
index 90398aae90006e6b157bfb54c66abddaa15dd590..e6052c7fd5bc1ccbb7048621d7f12fe3bb609556 100644
--- a/Applications/DataExplorer/DataView/AddLayerToMeshDialog.h
+++ b/Applications/DataExplorer/DataView/AddLayerToMeshDialog.h
@@ -27,7 +27,7 @@ class AddLayerToMeshDialog : public QDialog, private Ui_AddLayerToMesh
     Q_OBJECT
 
 public:
-    AddLayerToMeshDialog(QDialog* parent = nullptr);
+    explicit AddLayerToMeshDialog(QDialog* parent = nullptr);
 
     /// Returns if the top layer button is selected (if false, bottom is selected).
     bool isTopLayer() const { return this->topButton->isChecked(); };
diff --git a/Applications/DataExplorer/DataView/BaseItem.h b/Applications/DataExplorer/DataView/BaseItem.h
index d97437f142e6098527721ed92f79fb46dc455bba..d76baa5c8acee3f0fa13f63a834173408e945ded 100644
--- a/Applications/DataExplorer/DataView/BaseItem.h
+++ b/Applications/DataExplorer/DataView/BaseItem.h
@@ -31,8 +31,8 @@ class Point;
 class BaseItem
 {
 public:
-    BaseItem(const QString& listName,
-             const std::vector<GeoLib::Point*>* stations = nullptr)
+    explicit BaseItem(const QString& listName,
+                      const std::vector<GeoLib::Point*>* stations = nullptr)
         : _stations(stations), _vtkSource(VtkStationSource::New())
     {
         // create the vtk-object for 3d-visualisation of this list
diff --git a/Applications/DataExplorer/DataView/ColorTableModel.h b/Applications/DataExplorer/DataView/ColorTableModel.h
index 3b21f6261c6176135e2c31ec7a6ad52bc4ae97c4..45a619cf0a197ff34ab36b200a69659bda57d441 100644
--- a/Applications/DataExplorer/DataView/ColorTableModel.h
+++ b/Applications/DataExplorer/DataView/ColorTableModel.h
@@ -27,7 +27,7 @@ class ColorTableModel : public QAbstractTableModel
     Q_OBJECT
 
 public:
-    ColorTableModel(
+    explicit ColorTableModel(
         const std::map<std::string, DataHolderLib::Color*>& colorLookupTable,
         QObject* parent = nullptr);
     ~ColorTableModel() override;
diff --git a/Applications/DataExplorer/DataView/ColorTableView.h b/Applications/DataExplorer/DataView/ColorTableView.h
index c25717050bfc087d0f1aa7bee180fb51a6309df1..3b231904f2e0fa287f82d32a08a05b9cc94f5e5c 100644
--- a/Applications/DataExplorer/DataView/ColorTableView.h
+++ b/Applications/DataExplorer/DataView/ColorTableView.h
@@ -25,7 +25,7 @@ class ColorTableView : public QTableView
 
 public:
     /// Constructor
-    ColorTableView(QWidget* parent = nullptr);
+    explicit ColorTableView(QWidget* parent = nullptr);
 };
 
 /**
@@ -37,7 +37,10 @@ class ColorTableViewDelegate : public QItemDelegate
 
 public:
     /// Constructor
-    ColorTableViewDelegate(QWidget* parent = nullptr) : QItemDelegate(parent) {}
+    explicit ColorTableViewDelegate(QWidget* parent = nullptr)
+        : QItemDelegate(parent)
+    {
+    }
     /// Overwrites the paint-method to set user-defined properties instead of the default properties.
     void paint(QPainter* painter, const QStyleOptionViewItem& option,
                const QModelIndex& index) const override;
diff --git a/Applications/DataExplorer/DataView/CondFromRasterDialog.h b/Applications/DataExplorer/DataView/CondFromRasterDialog.h
index ade6924fd1da640fd7b39582a03634aa0ebaa645..5152b823bdea1b1c5308f8af04a49e3f0c646e99 100644
--- a/Applications/DataExplorer/DataView/CondFromRasterDialog.h
+++ b/Applications/DataExplorer/DataView/CondFromRasterDialog.h
@@ -31,8 +31,8 @@ class CondFromRasterDialog : public QDialog, private Ui_CondFromRaster
     Q_OBJECT
 
 public:
-    CondFromRasterDialog(std::vector<MeshLib::Mesh*> msh_vec,
-                         QDialog* parent = nullptr);
+    explicit CondFromRasterDialog(std::vector<MeshLib::Mesh*> msh_vec,
+                                  QDialog* parent = nullptr);
     ~CondFromRasterDialog() override;
 
 private:
diff --git a/Applications/DataExplorer/DataView/CreateStructuredGridDialog.h b/Applications/DataExplorer/DataView/CreateStructuredGridDialog.h
index 56d6ec6c91cc7de7b1097359a279acc263a2e1ad..5d17ca84f9fddf835d86ab469e8e0cbeec87d391 100644
--- a/Applications/DataExplorer/DataView/CreateStructuredGridDialog.h
+++ b/Applications/DataExplorer/DataView/CreateStructuredGridDialog.h
@@ -27,7 +27,7 @@ class CreateStructuredGridDialog : public QDialog, private Ui_CreateStructuredGr
     Q_OBJECT
 
 public:
-    CreateStructuredGridDialog(QDialog* parent = nullptr);
+    explicit CreateStructuredGridDialog(QDialog* parent = nullptr);
 
 private slots:
     void on_lineButton_toggled()  const;
diff --git a/Applications/DataExplorer/DataView/DataExplorerSettingsDialog.h b/Applications/DataExplorer/DataView/DataExplorerSettingsDialog.h
index 613e5bab35394bef6850f17fc57c4dcb194369f3..bf0a1ff6151e5fd74cea5ba5af16917556f85347 100644
--- a/Applications/DataExplorer/DataView/DataExplorerSettingsDialog.h
+++ b/Applications/DataExplorer/DataView/DataExplorerSettingsDialog.h
@@ -25,7 +25,7 @@ class DataExplorerSettingsDialog : public QDialog, private Ui_DataExplorerSettin
     Q_OBJECT
 
 public:
-    DataExplorerSettingsDialog(QDialog* parent = nullptr);
+    explicit DataExplorerSettingsDialog(QDialog* parent = nullptr);
     ~DataExplorerSettingsDialog() override;
 
 private slots:
diff --git a/Applications/DataExplorer/DataView/DiagramView/DetailWindow.h b/Applications/DataExplorer/DataView/DiagramView/DetailWindow.h
index 35ec29d2c4fff6c33aed2579636eb994bea4e609..ee7a563e6819ab14495f3a96fb275311def9cde9 100644
--- a/Applications/DataExplorer/DataView/DiagramView/DetailWindow.h
+++ b/Applications/DataExplorer/DataView/DiagramView/DetailWindow.h
@@ -27,22 +27,23 @@ class DetailWindow : public QWidget, private Ui_DetailWindow
 
 public:
     /// Creates an empty diagram window.
-    DetailWindow(QWidget* parent = nullptr);
+    explicit DetailWindow(QWidget* parent = nullptr);
     /**
      * Creates a window containing a diagram.
      * \param filename ASCII file containing x and y values for the graph to be displayed.
      * \param parent The parent QWidget.
      */
-    DetailWindow(QString filename, QWidget* parent = nullptr);
+    explicit DetailWindow(QString filename, QWidget* parent = nullptr);
 
     /**
      * Creates a window containing a diagram
      * \param list A QDiagramList containing all the data points and necessary metainformation for a graph to be displayed
      * \param parent The parent QWidget.
      */
-    DetailWindow(DiagramList* list, QWidget* parent = nullptr);
+    explicit DetailWindow(DiagramList* list, QWidget* parent = nullptr);
 
-    DetailWindow(std::vector<std::size_t> data, QWidget* parent = nullptr);
+    explicit DetailWindow(std::vector<std::size_t> data,
+                          QWidget* parent = nullptr);
 
     ~DetailWindow() override;
 
diff --git a/Applications/DataExplorer/DataView/DiagramView/DiagramPrefsDialog.h b/Applications/DataExplorer/DataView/DiagramView/DiagramPrefsDialog.h
index 0fe9041baa2ccf5d0b37aa55f05b8a93210578a8..9ead7c8b11db57c52dd9b3ad984793c5c71bf98c 100644
--- a/Applications/DataExplorer/DataView/DiagramView/DiagramPrefsDialog.h
+++ b/Applications/DataExplorer/DataView/DiagramView/DiagramPrefsDialog.h
@@ -58,7 +58,8 @@ public:
      * \param stn The station object associated the diagram.
      * \param parent The parent QDialog.
      */
-    DiagramPrefsDialog(GeoLib::Station* stn, QDialog* parent = nullptr);
+    explicit DiagramPrefsDialog(GeoLib::Station* stn,
+                                QDialog* parent = nullptr);
 
     /**
      * Opens a new dialog and automatically reads data from the specified file. The diagram is not associated
@@ -67,9 +68,9 @@ public:
      * \param[out] window Returns the created DetailWindow.
      * \param parent The parent QDialog.
      */
-    DiagramPrefsDialog(const QString& filename,
-                       DetailWindow* window = nullptr,
-                       QDialog* parent = nullptr);
+    explicit DiagramPrefsDialog(const QString& filename,
+                                DetailWindow* window = nullptr,
+                                QDialog* parent = nullptr);
 
     ~DiagramPrefsDialog() override;
 
diff --git a/Applications/DataExplorer/DataView/DiagramView/DiagramScene.h b/Applications/DataExplorer/DataView/DiagramView/DiagramScene.h
index 1c34c20b22486dadbbcb41f8970bb2584a5f0980..6c8cdb065607bb4ce74ed78007105136fd04bd9c 100644
--- a/Applications/DataExplorer/DataView/DiagramView/DiagramScene.h
+++ b/Applications/DataExplorer/DataView/DiagramView/DiagramScene.h
@@ -28,8 +28,8 @@ class QDateTime;
 class DiagramScene : public QGraphicsScene
 {
 public:
-    DiagramScene(QObject* parent = nullptr);
-    DiagramScene(DiagramList* list, QObject* parent = nullptr);
+    explicit DiagramScene(QObject* parent = nullptr);
+    explicit DiagramScene(DiagramList* list, QObject* parent = nullptr);
     ~DiagramScene() override;
 
     QArrow* addArrow(qreal length, qreal angle, QPen& pen);
diff --git a/Applications/DataExplorer/DataView/DiagramView/DiagramView.h b/Applications/DataExplorer/DataView/DiagramView/DiagramView.h
index 5711e5e2e1e8c00975645ecddfe50777a9b054ed..a5956d093d54de0fef9a1875a6a96ea6796ba205 100644
--- a/Applications/DataExplorer/DataView/DiagramView/DiagramView.h
+++ b/Applications/DataExplorer/DataView/DiagramView/DiagramView.h
@@ -31,13 +31,13 @@ public:
     /**
      * Creates an empty view.
      */
-    DiagramView(QWidget* parent = nullptr);
+    explicit DiagramView(QWidget* parent = nullptr);
     /**
      * Creates a view already containing a graph
      * \param list Contains a list of data points and metainformation to be displayed by the scene.
      * \param parent The parent QWidget.
      */
-    DiagramView(DiagramList* list, QWidget* parent = nullptr);
+    explicit DiagramView(DiagramList* list, QWidget* parent = nullptr);
     ~DiagramView() override;
 
     /// Adds a new graph to the scene.
diff --git a/Applications/DataExplorer/DataView/ElementTreeModel.h b/Applications/DataExplorer/DataView/ElementTreeModel.h
index 3acf2ef00294cf38783dc2d25655e6c95ffa7827..ac421d75220d663d03b6dd18408b4d8efaa9e500 100644
--- a/Applications/DataExplorer/DataView/ElementTreeModel.h
+++ b/Applications/DataExplorer/DataView/ElementTreeModel.h
@@ -32,7 +32,7 @@ class ElementTreeModel : public TreeModel
     Q_OBJECT
 
 public:
-    ElementTreeModel(QObject* parent = nullptr);
+    explicit ElementTreeModel(QObject* parent = nullptr);
     ~ElementTreeModel() override;
 
     vtkUnstructuredGridAlgorithm const* getSource() const { return _mesh_source; };
diff --git a/Applications/DataExplorer/DataView/ElementTreeView.h b/Applications/DataExplorer/DataView/ElementTreeView.h
index 821b6ff5685afa193125eda68b002e92105e4dcf..f5d7f98f595e590a5a3e9db21aba1cc0750a1c07 100644
--- a/Applications/DataExplorer/DataView/ElementTreeView.h
+++ b/Applications/DataExplorer/DataView/ElementTreeView.h
@@ -26,7 +26,7 @@ class ElementTreeView : public QTreeView
 
 public:
     /// Constructor
-    ElementTreeView(QWidget* parent = nullptr);
+    explicit ElementTreeView(QWidget* parent = nullptr);
 
 public slots:
     void updateView();
diff --git a/Applications/DataExplorer/DataView/FemConditionModel.h b/Applications/DataExplorer/DataView/FemConditionModel.h
index d6b21c0ac67efe853554671023f64c911aef29fa..06cf594259589100465c70f276732761e4280233 100644
--- a/Applications/DataExplorer/DataView/FemConditionModel.h
+++ b/Applications/DataExplorer/DataView/FemConditionModel.h
@@ -22,7 +22,7 @@ class FemConditionModel : public TreeModel
     Q_OBJECT
 
 public:
-    FemConditionModel(QObject* parent = nullptr);
+    explicit FemConditionModel(QObject* parent = nullptr);
 
     int columnCount(
         const QModelIndex& /*parent*/ = QModelIndex()) const override
diff --git a/Applications/DataExplorer/DataView/FemConditionView.h b/Applications/DataExplorer/DataView/FemConditionView.h
index 898855d0bc4f79542ed2146540976ea24dc73c05..43d49b406b8f04514679cecbca99c65173e31b9f 100644
--- a/Applications/DataExplorer/DataView/FemConditionView.h
+++ b/Applications/DataExplorer/DataView/FemConditionView.h
@@ -24,7 +24,7 @@ class FemConditionView final : public QTreeView
 
 public:
     /// Constructor
-    FemConditionView(QWidget* parent = nullptr);
+    explicit FemConditionView(QWidget* parent = nullptr);
 
 public slots:
     void updateView();
diff --git a/Applications/DataExplorer/DataView/GEOModels.h b/Applications/DataExplorer/DataView/GEOModels.h
index 525cc21cea61a08e9165f405e5ebe9ffd19dc9ea..91ae62d9a8de32e445f55c8e5ac77a1737535db1 100644
--- a/Applications/DataExplorer/DataView/GEOModels.h
+++ b/Applications/DataExplorer/DataView/GEOModels.h
@@ -38,7 +38,8 @@ class GEOModels : public QObject
     Q_OBJECT
 
 public:
-    GEOModels(GeoLib::GEOObjects& geo_objects, QObject* parent = nullptr);
+    explicit GEOModels(GeoLib::GEOObjects& geo_objects,
+                       QObject* parent = nullptr);
     ~GEOModels() override;
 
     GeoTreeModel* getGeoModel() { return _geoModel; }
diff --git a/Applications/DataExplorer/DataView/GMSHPrefsDialog.h b/Applications/DataExplorer/DataView/GMSHPrefsDialog.h
index 79ea7a486422cf41973bbc7995b2d4ad6fbdf802..86acd8c8780e61f18c82b9e053353ffdbe984992 100644
--- a/Applications/DataExplorer/DataView/GMSHPrefsDialog.h
+++ b/Applications/DataExplorer/DataView/GMSHPrefsDialog.h
@@ -32,7 +32,8 @@ class GMSHPrefsDialog : public QDialog, private Ui_GMSHPrefs
     Q_OBJECT
 
 public:
-    GMSHPrefsDialog(GeoLib::GEOObjects const& geoObjects, QDialog* parent = nullptr);
+    explicit GMSHPrefsDialog(GeoLib::GEOObjects const& geoObjects,
+                             QDialog* parent = nullptr);
     ~GMSHPrefsDialog() override;
 
 private:
diff --git a/Applications/DataExplorer/DataView/GeoOnMeshMappingDialog.h b/Applications/DataExplorer/DataView/GeoOnMeshMappingDialog.h
index 18775962dd4c9b6c0c70b96b3ec1da5df73d0299..a38a9953a5bf39eb1915b1676ea921cd8bb94a12 100644
--- a/Applications/DataExplorer/DataView/GeoOnMeshMappingDialog.h
+++ b/Applications/DataExplorer/DataView/GeoOnMeshMappingDialog.h
@@ -31,7 +31,7 @@ class GeoOnMeshMappingDialog : public QDialog, private Ui_GeoOnMeshMapping
     Q_OBJECT
 
 public:
-    GeoOnMeshMappingDialog(
+    explicit GeoOnMeshMappingDialog(
         std::vector<std::unique_ptr<MeshLib::Mesh>> const& mesh_vec,
         QDialog* parent = nullptr);
     ~GeoOnMeshMappingDialog() override;
diff --git a/Applications/DataExplorer/DataView/GeoTabWidget.h b/Applications/DataExplorer/DataView/GeoTabWidget.h
index 28e41780b88b9cc2ff56decac63a8e683630a61d..9d51f344ceebf8f38274805b42e1d8ec385966fd 100644
--- a/Applications/DataExplorer/DataView/GeoTabWidget.h
+++ b/Applications/DataExplorer/DataView/GeoTabWidget.h
@@ -25,7 +25,7 @@ class GeoTabWidget : public QWidget, public Ui_GeoTabWidgetBase
     Q_OBJECT
 
 public:
-    GeoTabWidget(QWidget* parent = nullptr);
+    explicit GeoTabWidget(QWidget* parent = nullptr);
 
 private:
 
diff --git a/Applications/DataExplorer/DataView/GeoTreeModel.h b/Applications/DataExplorer/DataView/GeoTreeModel.h
index e6840e701c86a60696e7241364a91f56b8808e24..7f861ab7e9f6e5f9d1457bab135773d56b3a2c84 100644
--- a/Applications/DataExplorer/DataView/GeoTreeModel.h
+++ b/Applications/DataExplorer/DataView/GeoTreeModel.h
@@ -42,7 +42,7 @@ class GeoTreeModel : public TreeModel
     Q_OBJECT
 
 public:
-    GeoTreeModel(QObject* parent = nullptr);
+    explicit GeoTreeModel(QObject* parent = nullptr);
     ~GeoTreeModel() override;
 
     /**
diff --git a/Applications/DataExplorer/DataView/GeoTreeView.h b/Applications/DataExplorer/DataView/GeoTreeView.h
index 5b2d2df63f82e9664db26d1a2d3b9722e43f0dce..609d51213f827bcea1a50baf7021bffe5c1d5d0f 100644
--- a/Applications/DataExplorer/DataView/GeoTreeView.h
+++ b/Applications/DataExplorer/DataView/GeoTreeView.h
@@ -31,7 +31,7 @@ class GeoTreeView : public QTreeView
 
 public:
     /// Constructor
-    GeoTreeView(QWidget* parent = nullptr);
+    explicit GeoTreeView(QWidget* parent = nullptr);
 
     /// Update the view to visualise changes made to the underlying data
     void updateView();
diff --git a/Applications/DataExplorer/DataView/LicenseDialog.h b/Applications/DataExplorer/DataView/LicenseDialog.h
index e3f8f83a0da53cc125db18307750c9b5c5000ba9..23e44a25a07d169036e7246ba1083904ce89486a 100644
--- a/Applications/DataExplorer/DataView/LicenseDialog.h
+++ b/Applications/DataExplorer/DataView/LicenseDialog.h
@@ -25,7 +25,7 @@ class LicenseDialog : public QDialog, private Ui_License
     Q_OBJECT
 
 public:
-    LicenseDialog(QDialog* parent = nullptr);
+    explicit LicenseDialog(QDialog* parent = nullptr);
     ~LicenseDialog() override = default;
     ;
 
diff --git a/Applications/DataExplorer/DataView/LineEditDialog.h b/Applications/DataExplorer/DataView/LineEditDialog.h
index cc6df5993a9141ef22aca8ea7735c8214ae2eda7..ae9f7da773c2519233da46c802c22331fe982a1f 100644
--- a/Applications/DataExplorer/DataView/LineEditDialog.h
+++ b/Applications/DataExplorer/DataView/LineEditDialog.h
@@ -31,8 +31,8 @@ class LineEditDialog : public QDialog, private Ui_LineEdit
     Q_OBJECT
 
 public:
-    LineEditDialog(const GeoLib::PolylineVec& ply_vec,
-                   QDialog* parent = nullptr);
+    explicit LineEditDialog(const GeoLib::PolylineVec& ply_vec,
+                            QDialog* parent = nullptr);
     ~LineEditDialog() override;
 
 private:
diff --git a/Applications/DataExplorer/DataView/MergeGeometriesDialog.h b/Applications/DataExplorer/DataView/MergeGeometriesDialog.h
index 15e2adf049c015e622697d7b918ea6b2ffa27fdd..296517ad1acde3190da7d5c65f76da244b56e136 100644
--- a/Applications/DataExplorer/DataView/MergeGeometriesDialog.h
+++ b/Applications/DataExplorer/DataView/MergeGeometriesDialog.h
@@ -32,8 +32,8 @@ class MergeGeometriesDialog : public QDialog, private Ui_MergeGeometries
     Q_OBJECT
 
 public:
-    MergeGeometriesDialog(GeoLib::GEOObjects& geoObjects,
-                          QDialog* parent = nullptr);
+    explicit MergeGeometriesDialog(GeoLib::GEOObjects& geoObjects,
+                                   QDialog* parent = nullptr);
     ~MergeGeometriesDialog() override;
 
     /// Returns a vector of selected geometries
diff --git a/Applications/DataExplorer/DataView/MeshAnalysisDialog.h b/Applications/DataExplorer/DataView/MeshAnalysisDialog.h
index 0da4a578ba4b4f5a0fea93efa813556235a356b5..adfc8ab0e50458a7b4977edf265633681f02b26e 100644
--- a/Applications/DataExplorer/DataView/MeshAnalysisDialog.h
+++ b/Applications/DataExplorer/DataView/MeshAnalysisDialog.h
@@ -33,7 +33,7 @@ class MeshAnalysisDialog : public QDialog, private Ui_MeshAnalysis
     Q_OBJECT
 
 public:
-    MeshAnalysisDialog(
+    explicit MeshAnalysisDialog(
         std::vector<std::unique_ptr<MeshLib::Mesh>> const& mesh_vec,
         QDialog* parent = nullptr);
     ~MeshAnalysisDialog() override;
diff --git a/Applications/DataExplorer/DataView/MeshElementRemovalDialog.h b/Applications/DataExplorer/DataView/MeshElementRemovalDialog.h
index 93b51d2248f249569b2c658133895ca336774c81..0017aabf9eb1a9affbee775045d760b27587ae1f 100644
--- a/Applications/DataExplorer/DataView/MeshElementRemovalDialog.h
+++ b/Applications/DataExplorer/DataView/MeshElementRemovalDialog.h
@@ -39,8 +39,8 @@ class MeshElementRemovalDialog : public QDialog, private Ui_MeshElementRemoval
     Q_OBJECT
 
 public:
-    MeshElementRemovalDialog(DataHolderLib::Project const& project,
-                             QDialog* parent = nullptr);
+    explicit MeshElementRemovalDialog(DataHolderLib::Project const& project,
+                                      QDialog* parent = nullptr);
     ~MeshElementRemovalDialog() override;
 
 private slots:
diff --git a/Applications/DataExplorer/DataView/MeshLayerEditDialog.h b/Applications/DataExplorer/DataView/MeshLayerEditDialog.h
index 2d9511200046800370d6a50753e24108a12a99d9..fe73025d53bf90950e941e641b0a61e3585b9d6d 100644
--- a/Applications/DataExplorer/DataView/MeshLayerEditDialog.h
+++ b/Applications/DataExplorer/DataView/MeshLayerEditDialog.h
@@ -40,7 +40,8 @@ class MeshLayerEditDialog : public QDialog, private Ui_MeshLayerEdit
     Q_OBJECT
 
 public:
-    MeshLayerEditDialog(const MeshLib::Mesh* mesh, QDialog* parent = nullptr);
+    explicit MeshLayerEditDialog(const MeshLib::Mesh* mesh,
+                                 QDialog* parent = nullptr);
     ~MeshLayerEditDialog() override;
 
 private:
diff --git a/Applications/DataExplorer/DataView/MeshMapping2DDialog.h b/Applications/DataExplorer/DataView/MeshMapping2DDialog.h
index 112f7bacd683fd0bca2915560de7059a1507e345..74e89434fd22b04b4ab57bca2313e6ed68a4807e 100644
--- a/Applications/DataExplorer/DataView/MeshMapping2DDialog.h
+++ b/Applications/DataExplorer/DataView/MeshMapping2DDialog.h
@@ -23,7 +23,7 @@ class MeshMapping2DDialog : public QDialog, private Ui_MeshMapping2D
     Q_OBJECT
 
 public:
-    MeshMapping2DDialog(QDialog* parent = nullptr);
+    explicit MeshMapping2DDialog(QDialog* parent = nullptr);
 
     bool useRasterMapping() const { return this->rasterValueButton->isChecked(); }
     bool useStaticMapping() const { return this->staticValueButton->isChecked(); }
diff --git a/Applications/DataExplorer/DataView/MeshModel.h b/Applications/DataExplorer/DataView/MeshModel.h
index 19cfdce43aed0a2e8853b71a8fc7b0771f2004e1..a00b4f1e57d776d3ffa5d99f87f716bfb1629ab9 100644
--- a/Applications/DataExplorer/DataView/MeshModel.h
+++ b/Applications/DataExplorer/DataView/MeshModel.h
@@ -39,7 +39,8 @@ class MeshModel : public TreeModel
     Q_OBJECT
 
 public:
-    MeshModel(DataHolderLib::Project& project, QObject* parent = nullptr);
+    explicit MeshModel(DataHolderLib::Project& project,
+                       QObject* parent = nullptr);
 
     /// Adds a new mesh
     void addMesh(std::unique_ptr<MeshLib::Mesh> mesh);
@@ -59,7 +60,7 @@ public slots:
     /// Removes the mesh with the given name.
     bool removeMesh(const std::string &name);
     /// Updates the model/view for a mesh.
-    void updateMesh(MeshLib::Mesh*);
+    void updateMesh(MeshLib::Mesh* /*mesh*/);
     /// Updates the model based on the ProjectData-object
     void updateModel();
     /// Returns the VTK source item for the mesh with the given index.
diff --git a/Applications/DataExplorer/DataView/MeshQualitySelectionDialog.h b/Applications/DataExplorer/DataView/MeshQualitySelectionDialog.h
index 76f2c77408d939a464e6af8330420533894dc30c..0743748f0733d353b15ef104ace1fdefb04cbd22 100644
--- a/Applications/DataExplorer/DataView/MeshQualitySelectionDialog.h
+++ b/Applications/DataExplorer/DataView/MeshQualitySelectionDialog.h
@@ -29,7 +29,7 @@ class MeshQualitySelectionDialog : public QDialog, private Ui_MeshQualitySelecti
     Q_OBJECT
 
 public:
-    MeshQualitySelectionDialog(QDialog* parent = nullptr);
+    explicit MeshQualitySelectionDialog(QDialog* parent = nullptr);
     ~MeshQualitySelectionDialog() override;
 
     /// Returns selected metric
diff --git a/Applications/DataExplorer/DataView/MeshTabWidget.h b/Applications/DataExplorer/DataView/MeshTabWidget.h
index 74827ed9cb183c470ac0d41dc70f638a65055145..97700a0dc5f2228b7b63a8a4c90c0d7b5aeb9233 100644
--- a/Applications/DataExplorer/DataView/MeshTabWidget.h
+++ b/Applications/DataExplorer/DataView/MeshTabWidget.h
@@ -25,7 +25,7 @@ class MeshTabWidget : public QWidget, public Ui_MeshTabWidgetBase
     Q_OBJECT
 
 public:
-    MeshTabWidget(QWidget* parent = nullptr);
+    explicit MeshTabWidget(QWidget* parent = nullptr);
 
 private slots:
     void enableSaveButton(bool enable) { this->saveMeshPushButton->setEnabled(enable); };
diff --git a/Applications/DataExplorer/DataView/MeshValueEditDialog.h b/Applications/DataExplorer/DataView/MeshValueEditDialog.h
index c38791d73eac99e3ef0cd16832d8a778ac438b9e..c394d709d5dad1d6bf3f8290cd90d1488d2fb32d 100644
--- a/Applications/DataExplorer/DataView/MeshValueEditDialog.h
+++ b/Applications/DataExplorer/DataView/MeshValueEditDialog.h
@@ -31,7 +31,8 @@ class MeshValueEditDialog : public QDialog, private Ui_MeshValueEdit
 
 public:
     /// Constructor for creating a new FEM condition.
-    MeshValueEditDialog(MeshLib::Mesh* mesh, QDialog* parent = nullptr);
+    explicit MeshValueEditDialog(MeshLib::Mesh* mesh,
+                                 QDialog* parent = nullptr);
 
     ~MeshValueEditDialog() override;
 
diff --git a/Applications/DataExplorer/DataView/MeshView.h b/Applications/DataExplorer/DataView/MeshView.h
index 2baac35821629f0e5ff19d2b5d634cb7fef02a9e..ba20c7f6b6d4e201ac5af2ace7c7b0ac8dac3e85 100644
--- a/Applications/DataExplorer/DataView/MeshView.h
+++ b/Applications/DataExplorer/DataView/MeshView.h
@@ -37,7 +37,7 @@ class MeshView : public QTreeView
     Q_OBJECT
 
 public:
-    MeshView(QWidget* parent = nullptr);
+    explicit MeshView(QWidget* parent = nullptr);
     ~MeshView() override;
 
 public slots:
diff --git a/Applications/DataExplorer/DataView/ModellingTabWidget.h b/Applications/DataExplorer/DataView/ModellingTabWidget.h
index 19aadec186de4e0f14614e83fc80db104bd42a00..9fa2939b27fce31a5f61db58679ac64db4e17724 100644
--- a/Applications/DataExplorer/DataView/ModellingTabWidget.h
+++ b/Applications/DataExplorer/DataView/ModellingTabWidget.h
@@ -25,7 +25,7 @@ class ModellingTabWidget : public QWidget, public Ui_ModellingTabWidgetBase
     Q_OBJECT
 
 public:
-    ModellingTabWidget(QWidget* parent = nullptr);
+    explicit ModellingTabWidget(QWidget* parent = nullptr);
 
 private slots:
 
diff --git a/Applications/DataExplorer/DataView/ProcessModel.h b/Applications/DataExplorer/DataView/ProcessModel.h
index dc505bc6bda02a2f7a59df67c3f3ba124ca11e4b..6a4a61cc74d51b11efe43ef3bc3db772dd226d36 100644
--- a/Applications/DataExplorer/DataView/ProcessModel.h
+++ b/Applications/DataExplorer/DataView/ProcessModel.h
@@ -37,7 +37,8 @@ class ProcessModel final : public TreeModel
     Q_OBJECT
 
 public:
-    ProcessModel(DataHolderLib::Project& project, QObject* parent = nullptr);
+    explicit ProcessModel(DataHolderLib::Project& project,
+                          QObject* parent = nullptr);
 
     int columnCount(const QModelIndex& parent = QModelIndex()) const override;
 
diff --git a/Applications/DataExplorer/DataView/ProcessView.h b/Applications/DataExplorer/DataView/ProcessView.h
index b47f947ddda40b08a845e655bae8adc25a091171..d36bac7cfe1f976860bd2671fce8e62bb41fecf0 100644
--- a/Applications/DataExplorer/DataView/ProcessView.h
+++ b/Applications/DataExplorer/DataView/ProcessView.h
@@ -32,7 +32,7 @@ class ProcessView final : public QTreeView
 
 public:
     /// Constructor
-    ProcessView(QWidget* parent = nullptr);
+    explicit ProcessView(QWidget* parent = nullptr);
 
     /// Update the view to visualise changes made to the underlying data
     void updateView();
diff --git a/Applications/DataExplorer/DataView/SaveMeshDialog.h b/Applications/DataExplorer/DataView/SaveMeshDialog.h
index f3451474796688bc93cc3ad33e9fbd0b44d6fab0..54d3d494811be279f13dd30ebd89590507ca9c0b 100644
--- a/Applications/DataExplorer/DataView/SaveMeshDialog.h
+++ b/Applications/DataExplorer/DataView/SaveMeshDialog.h
@@ -29,7 +29,8 @@ class SaveMeshDialog : public QDialog, private Ui_SaveMesh
     Q_OBJECT
 
 public:
-    SaveMeshDialog(MeshLib::Mesh const& mesh, QDialog* parent = nullptr);
+    explicit SaveMeshDialog(MeshLib::Mesh const& mesh,
+                            QDialog* parent = nullptr);
     ~SaveMeshDialog() override = default;
 
 private slots:
diff --git a/Applications/DataExplorer/DataView/StationTabWidget.h b/Applications/DataExplorer/DataView/StationTabWidget.h
index 6ca268f68e48b6066e16a5313002052353d52265..16ba71f93f4c30d1355e998dff6fe22052ea63ce 100644
--- a/Applications/DataExplorer/DataView/StationTabWidget.h
+++ b/Applications/DataExplorer/DataView/StationTabWidget.h
@@ -25,7 +25,7 @@ class StationTabWidget : public QWidget, public Ui_StationTabWidgetBase
     Q_OBJECT
 
 public:
-    StationTabWidget(QWidget* parent = nullptr);
+    explicit StationTabWidget(QWidget* parent = nullptr);
 
 private:
 
diff --git a/Applications/DataExplorer/DataView/StationTreeModel.h b/Applications/DataExplorer/DataView/StationTreeModel.h
index ba99cfddd0c766eb9285867fbaa273c3fd1f9ab2..44c60e8692c155bf27bd6fe8f87907ee55b16483 100644
--- a/Applications/DataExplorer/DataView/StationTreeModel.h
+++ b/Applications/DataExplorer/DataView/StationTreeModel.h
@@ -44,7 +44,7 @@ class StationTreeModel : public TreeModel
     Q_OBJECT
 
 public:
-    StationTreeModel(QObject* parent = nullptr);
+    explicit StationTreeModel(QObject* parent = nullptr);
     ~StationTreeModel() override;
 
     void addStationList(QString listName, const std::vector<GeoLib::Point*>* stations);
diff --git a/Applications/DataExplorer/DataView/StationTreeView.h b/Applications/DataExplorer/DataView/StationTreeView.h
index 0094c07569e3aac33e55bd43fa5bc4a06e608a4b..159ec9025e8d9df528447846a34d2e82fd2dd136 100644
--- a/Applications/DataExplorer/DataView/StationTreeView.h
+++ b/Applications/DataExplorer/DataView/StationTreeView.h
@@ -30,7 +30,7 @@ class StationTreeView : public QTreeView
 
 public:
     /// Constructor
-    StationTreeView(QWidget* parent = nullptr);
+    explicit StationTreeView(QWidget* parent = nullptr);
 
     /// Update the view to visualise changes made to the underlying data
     void updateView();
diff --git a/Applications/DataExplorer/DataView/StratView/StratBar.h b/Applications/DataExplorer/DataView/StratView/StratBar.h
index 7155142d9475efdb9c8871087615b6a7387d1bfc..28736f78e29b837473203145d09fe76efa3e626d 100644
--- a/Applications/DataExplorer/DataView/StratView/StratBar.h
+++ b/Applications/DataExplorer/DataView/StratView/StratBar.h
@@ -35,9 +35,10 @@ public:
      * \param stratColors A color map.
      * \param parent The parent QGraphicsItem.
      */
-    StratBar(GeoLib::StationBorehole* station,
-             std::map<std::string, DataHolderLib::Color>* stratColors = nullptr,
-             QGraphicsItem* parent = nullptr);
+    explicit StratBar(
+        GeoLib::StationBorehole* station,
+        std::map<std::string, DataHolderLib::Color>* stratColors = nullptr,
+        QGraphicsItem* parent = nullptr);
     ~StratBar() override = default;
 
     /// Returns the bounding rectangle of the bar.
diff --git a/Applications/DataExplorer/DataView/StratView/StratScene.h b/Applications/DataExplorer/DataView/StratView/StratScene.h
index 8ab6461a1bf3e8fa51510076803a0343224d3a7a..e4f19dbe2ba1d24ac93ddb8285fec02c94322d64 100644
--- a/Applications/DataExplorer/DataView/StratView/StratScene.h
+++ b/Applications/DataExplorer/DataView/StratView/StratScene.h
@@ -29,7 +29,7 @@ class StratScene : public QGraphicsScene
 {
 public:
     /// Constructor
-    StratScene(
+    explicit StratScene(
         GeoLib::StationBorehole* station,
         std::map<std::string, DataHolderLib::Color>* stratColors = nullptr,
         QObject* parent = nullptr);
diff --git a/Applications/DataExplorer/DataView/StratView/StratView.h b/Applications/DataExplorer/DataView/StratView/StratView.h
index 0fc64a60436d5d9901b9e6d8d51af77287bcc82b..32176d3d9f23058c1ae3a0c7b21b4c6f079ff843 100644
--- a/Applications/DataExplorer/DataView/StratView/StratView.h
+++ b/Applications/DataExplorer/DataView/StratView/StratView.h
@@ -34,7 +34,7 @@ public:
     /**
      * Creates an empty view.
      */
-    StratView(QWidget* parent = nullptr) { Q_UNUSED(parent); }
+    explicit StratView(QWidget* parent = nullptr) { Q_UNUSED(parent); }
     ~StratView() override;
 
     /// Sets the Borehole whose data should be visualised.
diff --git a/Applications/DataExplorer/DataView/StratView/StratWindow.h b/Applications/DataExplorer/DataView/StratView/StratWindow.h
index 3e44de0bd8520c0f6e52dc874964581af20940b8..f1ba17558cf6515fe7b52464def4b40a846ef82f 100644
--- a/Applications/DataExplorer/DataView/StratView/StratWindow.h
+++ b/Applications/DataExplorer/DataView/StratView/StratWindow.h
@@ -36,7 +36,7 @@ public:
      * \param stratColors A color map.
      * \param parent The parent QWidget.
      */
-    StratWindow(
+    explicit StratWindow(
         GeoLib::StationBorehole* station,
         std::map<std::string, DataHolderLib::Color>* stratColors = nullptr,
         QWidget* parent = nullptr);
diff --git a/Applications/DataExplorer/DataView/SurfaceExtractionDialog.h b/Applications/DataExplorer/DataView/SurfaceExtractionDialog.h
index 936ed97f4e4fb60eb69cbc2bd50a6efb113d3258..beea7116aacf6e363ccfe1e2ebef5181e3f2cc68 100644
--- a/Applications/DataExplorer/DataView/SurfaceExtractionDialog.h
+++ b/Applications/DataExplorer/DataView/SurfaceExtractionDialog.h
@@ -31,7 +31,7 @@ class SurfaceExtractionDialog : public QDialog, private Ui_SurfaceExtraction
     Q_OBJECT
 
 public:
-    SurfaceExtractionDialog(QDialog* parent = nullptr);
+    explicit SurfaceExtractionDialog(QDialog* parent = nullptr);
     ~SurfaceExtractionDialog() override = default;
 
     int getTolerance() const { return _tolerance; }
diff --git a/Applications/DataExplorer/VtkVis/MeshFromRasterDialog.h b/Applications/DataExplorer/VtkVis/MeshFromRasterDialog.h
index 0ea29d3eb33234b75bc945e0a3e2bd74d3bd59d6..a3fe99cd8e7ff74bfa91ff5aaa8d7168a7f6173f 100644
--- a/Applications/DataExplorer/VtkVis/MeshFromRasterDialog.h
+++ b/Applications/DataExplorer/VtkVis/MeshFromRasterDialog.h
@@ -34,7 +34,7 @@ class MeshFromRasterDialog : public QDialog, private Ui_MeshFromRaster
 
 public:
     /// Constructor
-    MeshFromRasterDialog(QDialog* parent = nullptr);
+    explicit MeshFromRasterDialog(QDialog* parent = nullptr);
     ~MeshFromRasterDialog() override;
 
     std::string getMeshName() const { return _mesh_name; }
diff --git a/Applications/DataExplorer/VtkVis/VisualizationWidget.h b/Applications/DataExplorer/VtkVis/VisualizationWidget.h
index c0155df259271fbab53e3c1a0886ea4e07c7e2fd..da506e21cfa156c6032986a009e520d63d59b2f5 100644
--- a/Applications/DataExplorer/VtkVis/VisualizationWidget.h
+++ b/Applications/DataExplorer/VtkVis/VisualizationWidget.h
@@ -32,7 +32,7 @@ class VisualizationWidget : public QWidget, public Ui_VisualizationWidgetBase
 public:
 
     /// @brief Constructor.
-    VisualizationWidget(QWidget* parent = nullptr);
+    explicit VisualizationWidget(QWidget* parent = nullptr);
 
     /// @brief Destructor.
     ~VisualizationWidget() override;
diff --git a/Applications/DataExplorer/VtkVis/VtkAlgorithmProperties.h b/Applications/DataExplorer/VtkVis/VtkAlgorithmProperties.h
index 7bfc0b434896de1215da80a92fadc3c387dc0743..af0ff3cbbab9b86c828546cf4146b451a3db4365 100644
--- a/Applications/DataExplorer/VtkVis/VtkAlgorithmProperties.h
+++ b/Applications/DataExplorer/VtkVis/VtkAlgorithmProperties.h
@@ -140,7 +140,7 @@ class VtkAlgorithmProperties : public QObject
 
 public:
     /// Constructor (sets default values)
-    VtkAlgorithmProperties(QObject* parent = nullptr);
+    explicit VtkAlgorithmProperties(QObject* parent = nullptr);
 
     ~VtkAlgorithmProperties() override;
 
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeColorByHeightFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeColorByHeightFilter.h
index 4c6f07ea96ad8aa68dcd6ce900d5fab19dc3e1ec..c69e3209e224b5624f17b68d0cafa8e3e11abe29 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeColorByHeightFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeColorByHeightFilter.h
@@ -22,7 +22,7 @@ class vtkSphereSource;
 class VtkCompositeColorByHeightFilter : public VtkCompositeFilter
 {
 public:
-    VtkCompositeColorByHeightFilter(vtkAlgorithm* inputAlgorithm);
+    explicit VtkCompositeColorByHeightFilter(vtkAlgorithm* inputAlgorithm);
     ~VtkCompositeColorByHeightFilter() override = default;
 
     void init() override;
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeColormapToImageFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeColormapToImageFilter.h
index a63f01860cea1779fdab274d878f519c72ab5e6d..8800983270b67395b1480dbddc01068d5008146b 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeColormapToImageFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeColormapToImageFilter.h
@@ -20,7 +20,7 @@
 class VtkCompositeColormapToImageFilter : public VtkCompositeFilter
 {
 public:
-    VtkCompositeColormapToImageFilter(vtkAlgorithm* inputAlgorithm);
+    explicit VtkCompositeColormapToImageFilter(vtkAlgorithm* inputAlgorithm);
     ~VtkCompositeColormapToImageFilter() override;
 
     void init() override;
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeContourFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeContourFilter.h
index 0a02824772dcd42b35d04da47df60ed662cc7703..493d8f83254f307c4fc16e74995aee76287883f8 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeContourFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeContourFilter.h
@@ -22,7 +22,7 @@
 class VtkCompositeContourFilter : public VtkCompositeFilter
 {
 public:
-    VtkCompositeContourFilter(vtkAlgorithm* inputAlgorithm);
+    explicit VtkCompositeContourFilter(vtkAlgorithm* inputAlgorithm);
     ~VtkCompositeContourFilter() override;
 
     void init() override;
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeElementSelectionFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeElementSelectionFilter.h
index cd364f986f11937f1fe05adbba7caf4cfcecd6b2..c61e716312b9d454fe4b4b2ee266d866293abd28 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeElementSelectionFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeElementSelectionFilter.h
@@ -26,7 +26,7 @@ class VtkColorLookupTable;
 class VtkCompositeElementSelectionFilter : public VtkCompositeFilter
 {
 public:
-    VtkCompositeElementSelectionFilter(vtkAlgorithm* inputAlgorithm);
+    explicit VtkCompositeElementSelectionFilter(vtkAlgorithm* inputAlgorithm);
     ~VtkCompositeElementSelectionFilter() override = default;
 
     void init() override;
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeFilter.h
index 3414bf34a6c33407e1783565ab94258b662ce2b6..91e073ab982ed87356772e352b9fabcf030b6cf4 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeFilter.h
@@ -43,7 +43,7 @@ class VtkCompositeFilter : public VtkAlgorithmProperties
 public:
     /// @brief Constructor.
     /// @param inputAlgorithm The algorithm to attach this filter to.
-    VtkCompositeFilter(vtkAlgorithm* inputAlgorithm);
+    explicit VtkCompositeFilter(vtkAlgorithm* inputAlgorithm);
 
     /// @brief Destructor.
     ~VtkCompositeFilter() override;
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeGeoObjectFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeGeoObjectFilter.h
index 3aa3644e05559430f35048c4adc63ac06176e04b..0ab673b6e2a549ddfe4117a140737dc61401f7d1 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeGeoObjectFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeGeoObjectFilter.h
@@ -23,7 +23,7 @@ class vtkThreshold;
 class VtkCompositeGeoObjectFilter : public VtkCompositeFilter
 {
 public:
-    VtkCompositeGeoObjectFilter(vtkAlgorithm* inputAlgorithm);
+    explicit VtkCompositeGeoObjectFilter(vtkAlgorithm* inputAlgorithm);
     ~VtkCompositeGeoObjectFilter() override;
 
     void init() override;
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeImageToCylindersFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeImageToCylindersFilter.h
index 2c00445c3cd88b23cff21915f7df29f9c3f7370c..a4b140976b19dabb5b57ff8dfaf2968272eed76b 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeImageToCylindersFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeImageToCylindersFilter.h
@@ -24,7 +24,7 @@ class VtkImageDataToLinePolyDataFilter;
 class VtkCompositeImageToCylindersFilter : public VtkCompositeFilter
 {
 public:
-    VtkCompositeImageToCylindersFilter(vtkAlgorithm* inputAlgorithm);
+    explicit VtkCompositeImageToCylindersFilter(vtkAlgorithm* inputAlgorithm);
     ~VtkCompositeImageToCylindersFilter() override;
 
     void init() override;
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeImageToPointCloudFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeImageToPointCloudFilter.h
index e9ffec6ed5f9b4e67b3f80bd9942aa9fadf55a77..17d5f6e0397f8d620998e4e0af75565dabcb505f 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeImageToPointCloudFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeImageToPointCloudFilter.h
@@ -16,7 +16,7 @@ class VtkImageDataToPointCloudFilter;
 class VtkCompositeImageToPointCloudFilter : public VtkCompositeFilter
 {
 public:
-    VtkCompositeImageToPointCloudFilter(vtkAlgorithm* inputAlgorithm);
+    explicit VtkCompositeImageToPointCloudFilter(vtkAlgorithm* inputAlgorithm);
     ~VtkCompositeImageToPointCloudFilter() override = default;
 
     void init() override;
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeImageToSurfacePointsFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeImageToSurfacePointsFilter.h
index f53faf66a40a14535b3827008878277697182d40..e4576d19c56ec607dfc56e1f4ca25a4e4342aeb0 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeImageToSurfacePointsFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeImageToSurfacePointsFilter.h
@@ -16,7 +16,8 @@ class VtkImageDataToSurfacePointsFilter;
 class VtkCompositeImageToSurfacePointsFilter : public VtkCompositeFilter
 {
 public:
-    VtkCompositeImageToSurfacePointsFilter(vtkAlgorithm* inputAlgorithm);
+    explicit VtkCompositeImageToSurfacePointsFilter(
+        vtkAlgorithm* inputAlgorithm);
     ~VtkCompositeImageToSurfacePointsFilter() override = default;
 
     void init() override;
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeLineToTubeFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeLineToTubeFilter.h
index bbb226daa09255ccb28650434f8c882bcddd53a8..eed50103078b7e0f49ef1da263cc67fe0d81cb37 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeLineToTubeFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeLineToTubeFilter.h
@@ -20,7 +20,7 @@
 class VtkCompositeLineToTubeFilter : public VtkCompositeFilter
 {
 public:
-    VtkCompositeLineToTubeFilter(vtkAlgorithm* inputAlgorithm);
+    explicit VtkCompositeLineToTubeFilter(vtkAlgorithm* inputAlgorithm);
     ~VtkCompositeLineToTubeFilter() override;
 
     void init() override;
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeNodeSelectionFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeNodeSelectionFilter.h
index 67f1a735600dffe9bdbd18b599e1947dce7187d8..2835f57df0237849a02bd47ee101465a5ded6eb5 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeNodeSelectionFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeNodeSelectionFilter.h
@@ -23,7 +23,7 @@
 class VtkCompositeNodeSelectionFilter : public VtkCompositeFilter
 {
 public:
-    VtkCompositeNodeSelectionFilter(vtkAlgorithm* inputAlgorithm);
+    explicit VtkCompositeNodeSelectionFilter(vtkAlgorithm* inputAlgorithm);
     ~VtkCompositeNodeSelectionFilter() override;
 
     void init() override;
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositePointToGlyphFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositePointToGlyphFilter.h
index 54790254b64e145187c67a1303e60ec3cd1d0955..96fa3d11ae3d5a519013248983231cf7da64a6e8 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositePointToGlyphFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositePointToGlyphFilter.h
@@ -22,7 +22,7 @@ class vtkSphereSource;
 class VtkCompositePointToGlyphFilter : public VtkCompositeFilter
 {
 public:
-    VtkCompositePointToGlyphFilter(vtkAlgorithm* inputAlgorithm);
+    explicit VtkCompositePointToGlyphFilter(vtkAlgorithm* inputAlgorithm);
     ~VtkCompositePointToGlyphFilter() override;
 
     void init() override;
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeTextureOnSurfaceFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeTextureOnSurfaceFilter.h
index 44c89fd76bea9516f0bfff04350a8abd4317695d..3b479c17ebc233015d2f7ee14a16f060060039ae 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeTextureOnSurfaceFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeTextureOnSurfaceFilter.h
@@ -22,7 +22,7 @@ class vtkSphereSource;
 class VtkCompositeTextureOnSurfaceFilter : public VtkCompositeFilter
 {
 public:
-    VtkCompositeTextureOnSurfaceFilter(vtkAlgorithm* inputAlgorithm);
+    explicit VtkCompositeTextureOnSurfaceFilter(vtkAlgorithm* inputAlgorithm);
     ~VtkCompositeTextureOnSurfaceFilter() override;
 
     void init() override;
diff --git a/Applications/DataExplorer/VtkVis/VtkCompositeThresholdFilter.h b/Applications/DataExplorer/VtkVis/VtkCompositeThresholdFilter.h
index 77e4d5387b2cecb28341f8f04e5c268df0780e3d..aaa9684df2d91c51235bcb507ad775876d4c37f1 100644
--- a/Applications/DataExplorer/VtkVis/VtkCompositeThresholdFilter.h
+++ b/Applications/DataExplorer/VtkVis/VtkCompositeThresholdFilter.h
@@ -22,7 +22,7 @@
 class VtkCompositeThresholdFilter : public VtkCompositeFilter
 {
 public:
-    VtkCompositeThresholdFilter(vtkAlgorithm* inputAlgorithm);
+    explicit VtkCompositeThresholdFilter(vtkAlgorithm* inputAlgorithm);
     ~VtkCompositeThresholdFilter() override;
 
     void init() override;
diff --git a/Applications/DataExplorer/VtkVis/VtkConsoleOutputWindow.h b/Applications/DataExplorer/VtkVis/VtkConsoleOutputWindow.h
index b6db5d80a8352197084272da1e75d560036493b4..c80f5c580e5ce10a4c79a813bbf152c703e065e8 100644
--- a/Applications/DataExplorer/VtkVis/VtkConsoleOutputWindow.h
+++ b/Applications/DataExplorer/VtkVis/VtkConsoleOutputWindow.h
@@ -24,7 +24,7 @@ public:
     void PrintSelf(ostream& os, vtkIndent indent) override;
 
     static VtkConsoleOutputWindow * New();
-    void DisplayText(const char*) override;
+    void DisplayText(const char* /*unused*/) override;
 
     VtkConsoleOutputWindow(const VtkConsoleOutputWindow&) = delete;
     void operator=(const VtkConsoleOutputWindow&) = delete;
diff --git a/Applications/DataExplorer/VtkVis/VtkVisPipeline.h b/Applications/DataExplorer/VtkVis/VtkVisPipeline.h
index ccbea1d46a1caa019b856c2e70c36f0c898e18ba..1d9aa2d417cec3b98d1845042d9603b310c8210a 100644
--- a/Applications/DataExplorer/VtkVis/VtkVisPipeline.h
+++ b/Applications/DataExplorer/VtkVis/VtkVisPipeline.h
@@ -57,7 +57,7 @@ class VtkVisPipeline : public TreeModel
     Q_OBJECT
 
 public:
-    VtkVisPipeline(vtkRenderer* renderer, QObject* parent = nullptr);
+    explicit VtkVisPipeline(vtkRenderer* renderer, QObject* parent = nullptr);
 
     /// \brief Emits vtkVisPipelineChanged() and calls base class method.
     bool setData(const QModelIndex& index, const QVariant& value,
diff --git a/Applications/DataExplorer/VtkVis/VtkVisPipelineView.h b/Applications/DataExplorer/VtkVis/VtkVisPipelineView.h
index 61370f8e9f0eeaa16624fe2328466b49ddd07ed5..fefee39ed9939a1e245cc054d5164628b793e1c0 100644
--- a/Applications/DataExplorer/VtkVis/VtkVisPipelineView.h
+++ b/Applications/DataExplorer/VtkVis/VtkVisPipelineView.h
@@ -40,7 +40,7 @@ class VtkVisPipelineView : public QTreeView
 
 public:
     /// @brief Constructor.
-    VtkVisPipelineView(QWidget* parent = nullptr);
+    explicit VtkVisPipelineView(QWidget* parent = nullptr);
 
     /// @brief Overridden to set model specific header properties.
     void setModel(QAbstractItemModel* model) override;
diff --git a/Applications/DataExplorer/VtkVis/VtkVisTabWidget.h b/Applications/DataExplorer/VtkVis/VtkVisTabWidget.h
index 1ccd0ac61b09b05fb5a6918188628c9974bac97f..3be22090265071cf48808a9977a7be73f1648f11 100644
--- a/Applications/DataExplorer/VtkVis/VtkVisTabWidget.h
+++ b/Applications/DataExplorer/VtkVis/VtkVisTabWidget.h
@@ -30,7 +30,7 @@ class VtkVisTabWidget : public QWidget, public Ui_VtkVisTabWidgetBase
 
 public:
     /// Constructor
-    VtkVisTabWidget(QWidget* parent = nullptr);
+    explicit VtkVisTabWidget(QWidget* parent = nullptr);
 
 protected slots:
     /// Updates the property panels to show informations on the given VtkVisPipelineItem.
diff --git a/Applications/DataExplorer/mainwindow.h b/Applications/DataExplorer/mainwindow.h
index b5532f95f5b0d5c4c1f5494cba47357cc526f56d..7f6d2cbce8692a4306b1f202e3cdf5a531e62907 100644
--- a/Applications/DataExplorer/mainwindow.h
+++ b/Applications/DataExplorer/mainwindow.h
@@ -42,7 +42,7 @@ class MainWindow : public QMainWindow, public Ui_MainWindowClass
     Q_OBJECT
 
 public:
-    MainWindow(QWidget* parent = nullptr);
+    explicit MainWindow(QWidget* parent = nullptr);
 
     void ShowWindow();
     void HideWindow();
diff --git a/Applications/FileIO/Gmsh/GMSHAdaptiveMeshDensity.h b/Applications/FileIO/Gmsh/GMSHAdaptiveMeshDensity.h
index f1036515ddf62819d2120a813606eaaa2385e265..8c7ac58e0a4fb8bae49b1759cf70e824e15a7218 100644
--- a/Applications/FileIO/Gmsh/GMSHAdaptiveMeshDensity.h
+++ b/Applications/FileIO/Gmsh/GMSHAdaptiveMeshDensity.h
@@ -37,7 +37,8 @@ public:
     void initialize(std::vector<GeoLib::Point const*> const& pnts) override;
     double getMeshDensityAtPoint(GeoLib::Point const* const pnt) const override;
     void addPoints(std::vector<GeoLib::Point const*> const& pnts);
-    double getMeshDensityAtStation(GeoLib::Point const* const) const override;
+    double getMeshDensityAtStation(
+        GeoLib::Point const* const /*unused*/) const override;
     void getSteinerPoints (std::vector<GeoLib::Point*> & pnts,
                            std::size_t additional_levels = 0) const;
 #ifndef NDEBUG
diff --git a/Applications/FileIO/Gmsh/GMSHFixedMeshDensity.h b/Applications/FileIO/Gmsh/GMSHFixedMeshDensity.h
index 34b3f6193959086ef79c56811f4b9feda1232bf9..b838a680e0258dfdacfc4c9fecdf7d45cb0df45d 100644
--- a/Applications/FileIO/Gmsh/GMSHFixedMeshDensity.h
+++ b/Applications/FileIO/Gmsh/GMSHFixedMeshDensity.h
@@ -22,8 +22,10 @@ class GMSHFixedMeshDensity final : public GMSHMeshDensityStrategy
 public:
     explicit GMSHFixedMeshDensity(double mesh_density);
     void initialize(std::vector<GeoLib::Point const*> const& vec) override;
-    double getMeshDensityAtPoint(GeoLib::Point const* const) const override;
-    double getMeshDensityAtStation(GeoLib::Point const* const) const override;
+    double getMeshDensityAtPoint(
+        GeoLib::Point const* const /*unused*/) const override;
+    double getMeshDensityAtStation(
+        GeoLib::Point const* const /*unused*/) const override;
     ~GMSHFixedMeshDensity() override = default;
 
 private:
diff --git a/Applications/Utils/OGSFileConverter/OGSFileConverter.h b/Applications/Utils/OGSFileConverter/OGSFileConverter.h
index 2d5a0e67057f9181489bf136ec91df10b7817ede..33fb685176ddf6a3102f5468db8dd2797d800162 100644
--- a/Applications/Utils/OGSFileConverter/OGSFileConverter.h
+++ b/Applications/Utils/OGSFileConverter/OGSFileConverter.h
@@ -26,7 +26,8 @@ class OGSFileConverter : public QDialog, private Ui_OGSFileConverter
 
 public:
     /// Constructor
-    OGSFileConverter(std::string const& gmsh_path, QWidget* parent = nullptr);
+    explicit OGSFileConverter(std::string const& gmsh_path,
+                              QWidget* parent = nullptr);
     /// Destructor
     ~OGSFileConverter() override;
 
diff --git a/BaseLib/ConfigTree-impl.h b/BaseLib/ConfigTree-impl.h
index 9acdf51c07393bdcf350664932dd6092fcc08916..a4ffe1907640d15873f4801df43cea4d14f3d140 100644
--- a/BaseLib/ConfigTree-impl.h
+++ b/BaseLib/ConfigTree-impl.h
@@ -71,7 +71,7 @@ boost::optional<T> ConfigTree::getConfigParameterOptional(
 
 template <typename T>
 boost::optional<T> ConfigTree::getConfigParameterOptionalImpl(
-    std::string const& param, T*) const
+    std::string const& param, T* /*unused*/) const
 {
     if (auto p = getConfigSubtreeOptional(param))
     {
@@ -83,7 +83,7 @@ boost::optional<T> ConfigTree::getConfigParameterOptionalImpl(
 
 template <typename T>
 boost::optional<std::vector<T>> ConfigTree::getConfigParameterOptionalImpl(
-    std::string const& param, std::vector<T>*) const
+    std::string const& param, std::vector<T>* /*unused*/) const
 {
     if (auto p = getConfigSubtreeOptional(param))
     {
diff --git a/BaseLib/ConfigTree.h b/BaseLib/ConfigTree.h
index a7634b56ba9d136dce4309218c2c539ec6a05888..7f55a51f06f9eff9987d5b12f3481ef35c3b0ccc 100644
--- a/BaseLib/ConfigTree.h
+++ b/BaseLib/ConfigTree.h
@@ -268,7 +268,7 @@ public:
 
     //! After being moved from, \c other is in an undefined state and must not be
     //! used anymore!
-    ConfigTree& operator=(ConfigTree &&);
+    ConfigTree& operator=(ConfigTree&& other);
 
     //! Used to get the project file name.
     std::string const& getProjectFileName() const { return _filename; }
@@ -520,12 +520,14 @@ public:
 
 private:
     //! Default implementation of reading a value of type T.
-    template<typename T> boost::optional<T>
-    getConfigParameterOptionalImpl(std::string const& param, T*) const;
+    template <typename T>
+    boost::optional<T> getConfigParameterOptionalImpl(std::string const& param,
+                                                      T* /*unused*/) const;
 
     //! Implementation of reading a vector of values of type T.
-    template<typename T> boost::optional<std::vector<T>>
-    getConfigParameterOptionalImpl(std::string const& param, std::vector<T>*) const;
+    template <typename T>
+    boost::optional<std::vector<T>> getConfigParameterOptionalImpl(
+        std::string const& param, std::vector<T>* /*unused*/) const;
 
     struct CountType
     {
diff --git a/BaseLib/FileFinder.h b/BaseLib/FileFinder.h
index b08cac34d04df615d6bbfd7c35702e7f93d9e541..b33a60078cf99d3381ae75c5c01645292f5cbc09 100644
--- a/BaseLib/FileFinder.h
+++ b/BaseLib/FileFinder.h
@@ -37,7 +37,7 @@ public:
      *
      * @param dirs   an initializer list of additional directory paths to the search-space
      */
-    explicit FileFinder(std::initializer_list<std::string> dirs);
+    FileFinder(std::initializer_list<std::string> dirs);
 
     /**
      * \brief Adds another directory to the search-space.
diff --git a/BaseLib/Functional.h b/BaseLib/Functional.h
index 09f0c0ff0f0bf81969c275040f670a57766953da..632414a92c3376a75e4a123afa3c755f766377fd 100644
--- a/BaseLib/Functional.h
+++ b/BaseLib/Functional.h
@@ -100,7 +100,7 @@ template <int... Indices, typename Object, typename MethodClass,
           typename ReturnType, typename... Args>
 std::function<ReturnType(Args...)> easyBind_inner(
     ReturnType (MethodClass::*method)(Args...), Object&& obj,
-    std::integer_sequence<int, Indices...>)
+    std::integer_sequence<int, Indices...> /*unused*/)
 {
     return easyBind_innermost<Indices...>(method, std::forward<Object>(obj));
 }
@@ -109,7 +109,7 @@ template <int... Indices, typename Object, typename MethodClass,
           typename ReturnType, typename... Args>
 std::function<ReturnType(Args...)> easyBind_inner(
     ReturnType (MethodClass::*method)(Args...) const, Object&& obj,
-    std::integer_sequence<int, Indices...>)
+    std::integer_sequence<int, Indices...> /*unused*/)
 {
     return easyBind_innermost<Indices...>(method, std::forward<Object>(obj));
 }
diff --git a/BaseLib/TCLAPCustomOutput.h b/BaseLib/TCLAPCustomOutput.h
index 3c3ef0034f4c2f3a7d56b4060bcc9c7c4e6782ee..0154040ef28511cdd71d8b0bdd9e70aab817ce63 100644
--- a/BaseLib/TCLAPCustomOutput.h
+++ b/BaseLib/TCLAPCustomOutput.h
@@ -35,7 +35,7 @@ public:
      * produce alternative behavior.
      * \param c - The CmdLine object the output is generated for.
      */
-    virtual void usage(TCLAP::CmdLineInterface& c);
+    virtual void usage(TCLAP::CmdLineInterface& _cmd);
 
     /**
      * Prints (to stderr) an error message, short usage
@@ -43,8 +43,7 @@ public:
      * \param c - The CmdLine object the output is generated for.
      * \param e - The ArgException that caused the failure.
      */
-    virtual void failure(TCLAP::CmdLineInterface& c,
-            TCLAP::ArgException& e );
+    virtual void failure(TCLAP::CmdLineInterface& _cmd, TCLAP::ArgException& e);
 
 protected:
 
@@ -53,7 +52,7 @@ protected:
      * \param c - The CmdLine object the output is generated for.
      * \param os - The stream to write the message to.
      */
-    void _shortUsage( TCLAP::CmdLineInterface& c, std::ostream& os ) const;
+    void _shortUsage(TCLAP::CmdLineInterface& _cmd, std::ostream& os) const;
 
     /**
      * Writes a longer usage message with long and short args,
@@ -61,8 +60,7 @@ protected:
      * \param c - The CmdLine object the output is generated for.
      * \param os - The stream to write the message to.
      */
-    void _longUsage( TCLAP::CmdLineInterface& c, std::ostream& os ) const;
-
+    void _longUsage(TCLAP::CmdLineInterface& _cmd, std::ostream& os) const;
 };
 
 inline void TCLAPCustomOutput::usage(TCLAP::CmdLineInterface& _cmd )
diff --git a/GeoLib/GEOObjects.h b/GeoLib/GEOObjects.h
index abf5218d9c737448f53ff217c299b151e9a2a4c2..5772f49776e9f24168567859c4644b7fe211a928 100644
--- a/GeoLib/GEOObjects.h
+++ b/GeoLib/GEOObjects.h
@@ -64,17 +64,20 @@ class GEOObjects final
 public:
     struct Callbacks
     {
-        virtual void addPointVec(std::string const&){}
-        virtual void removePointVec(std::string const&){}
-        virtual void addStationVec(std::string const&){}
-        virtual void removeStationVec(std::string const&){}
-        virtual void addPolylineVec(std::string const&){}
-        virtual void appendPolylineVec(std::string const&){}
-        virtual void removePolylineVec(std::string const&){}
-        virtual void addSurfaceVec(std::string const&){}
-        virtual void appendSurfaceVec(std::string const&){}
-        virtual void removeSurfaceVec(std::string const&){}
-        virtual void renameGeometry(std::string const&, std::string const&) {}
+        virtual void addPointVec(std::string const& /*unused*/) {}
+        virtual void removePointVec(std::string const& /*unused*/) {}
+        virtual void addStationVec(std::string const& /*unused*/) {}
+        virtual void removeStationVec(std::string const& /*unused*/) {}
+        virtual void addPolylineVec(std::string const& /*unused*/) {}
+        virtual void appendPolylineVec(std::string const& /*unused*/) {}
+        virtual void removePolylineVec(std::string const& /*unused*/) {}
+        virtual void addSurfaceVec(std::string const& /*unused*/) {}
+        virtual void appendSurfaceVec(std::string const& /*unused*/) {}
+        virtual void removeSurfaceVec(std::string const& /*unused*/) {}
+        virtual void renameGeometry(std::string const& /*unused*/,
+                                    std::string const& /*unused*/)
+        {
+        }
         virtual ~Callbacks() = default;
     };
 
@@ -308,34 +311,22 @@ public:
     std::unique_ptr<Callbacks> _callbacks{new Callbacks};
 
     std::function<void(std::string const&)> addPolylineVecCallback =
-        [](std::string const&)
-    {
-    };
+        [](std::string const& /*unused*/) {};
 
     std::function<void(std::string const&)> appendPolylineVecCallback =
-        [](std::string const&)
-    {
-    };
+        [](std::string const& /*unused*/) {};
 
     std::function<void(std::string const&)> removePolylineVecCallback =
-        [](std::string const&)
-    {
-    };
+        [](std::string const& /*unused*/) {};
 
     std::function<void(std::string const&)> addSurfaceVecCallback =
-        [](std::string const&)
-    {
-    };
+        [](std::string const& /*unused*/) {};
 
     std::function<void(std::string const&)> appendSurfaceVecCallback =
-        [](std::string const&)
-    {
-    };
+        [](std::string const& /*unused*/) {};
 
     std::function<void(std::string const&)> removeSurfaceVecCallback =
-        [](std::string const&)
-    {
-    };
+        [](std::string const& /*unused*/) {};
 
 private:
     /**
diff --git a/GeoLib/Grid.h b/GeoLib/Grid.h
index a67254118f75b9af2dd86f2bb0a7ef0988929f97..5691c02b34e5cd8986e21606b0ccb99812139ae2 100644
--- a/GeoLib/Grid.h
+++ b/GeoLib/Grid.h
@@ -49,7 +49,8 @@ public:
      *
      */
     template <typename InputIterator>
-    Grid(InputIterator first, InputIterator last, std::size_t items_per_cell = 512);
+    Grid(InputIterator first, InputIterator last,
+         std::size_t max_num_per_grid_cell = 512);
 
     /**
      * This is the destructor of the class. It deletes the internal data structures *not*
@@ -165,7 +166,7 @@ private:
      */
     template <typename P>
     std::array<double, 6> getPointCellBorderDistances(
-        P const& pnt, std::array<std::size_t,3> const& coordinates) const;
+        P const& pnt, std::array<std::size_t, 3> const& coords) const;
 
     template <typename P>
     bool calcNearestPointInGridCell(P const& pnt,
diff --git a/MaterialLib/Adsorption/Reaction.h b/MaterialLib/Adsorption/Reaction.h
index e5ee5c1d78bcaa638ba2888d358f3a46f1b0006b..213d588abdf270faeb053da5e0c0027ffc17ee7a 100644
--- a/MaterialLib/Adsorption/Reaction.h
+++ b/MaterialLib/Adsorption/Reaction.h
@@ -27,7 +27,10 @@ public:
                                      const double M_Ads, const double loading) const = 0;
 
     // TODO get rid of
-    virtual double getEquilibriumLoading(const double, const double, const double) const {
+    virtual double getEquilibriumLoading(const double /*unused*/,
+                                         const double /*unused*/,
+                                         const double /*unused*/) const
+    {
         return -1.0;
     }
 
diff --git a/MaterialLib/FractureModels/Permeability/ConstantPermeability.h b/MaterialLib/FractureModels/Permeability/ConstantPermeability.h
index cbe99490ead5260a02832f496b10525c2ab6f0ba..86d0abd68bc6bfced047366831e77ea5ac40a055 100644
--- a/MaterialLib/FractureModels/Permeability/ConstantPermeability.h
+++ b/MaterialLib/FractureModels/Permeability/ConstantPermeability.h
@@ -18,7 +18,7 @@ namespace MaterialLib::Fracture::Permeability
 class ConstantPermeability final : public Permeability
 {
 public:
-    ConstantPermeability(double const permeability);
+    explicit ConstantPermeability(double const permeability);
 
 private:
     double permeability(PermeabilityState const* const /*state*/,
diff --git a/MathLib/Integration/WeightedSum.h b/MathLib/Integration/WeightedSum.h
index cbb932d34e8716bdd8d5e531a5c826fb46aa4cfd..947c4a61e5c953fb2aee680131191c55835a9964 100644
--- a/MathLib/Integration/WeightedSum.h
+++ b/MathLib/Integration/WeightedSum.h
@@ -32,9 +32,7 @@ template <typename Method>
 struct SUM<0, Method>
 {
     template <typename F>
-    static
-    double
-    add(F const&)
+    static double add(F const& /*unused*/)
     {
         return 0;
     }
diff --git a/MathLib/LinAlg/Dense/DenseMatrix.h b/MathLib/LinAlg/Dense/DenseMatrix.h
index bfc93604f6de6110fea97bc944dd06208efd1fd9..19ea433ef7a9b145091022464f96a78e7cdf0d97 100644
--- a/MathLib/LinAlg/Dense/DenseMatrix.h
+++ b/MathLib/LinAlg/Dense/DenseMatrix.h
@@ -33,7 +33,7 @@ public:
 
    /// Dense rectangular matrix constructor.
    DenseMatrix (IDX_TYPE rows, IDX_TYPE cols);
-   DenseMatrix (IDX_TYPE rows, IDX_TYPE cols, const FP_TYPE& val);
+   DenseMatrix(IDX_TYPE rows, IDX_TYPE cols, const FP_TYPE& initial_value);
    DenseMatrix (const DenseMatrix &src);
    /**
     * Move constructor.
diff --git a/MathLib/LinAlg/FinalizeMatrixAssembly.h b/MathLib/LinAlg/FinalizeMatrixAssembly.h
index f278275eeeb24b24bf292362a0b6ddcce0c15f12..96fe660c8d814e24dd91b72bedf06d3b3d168ff4 100644
--- a/MathLib/LinAlg/FinalizeMatrixAssembly.h
+++ b/MathLib/LinAlg/FinalizeMatrixAssembly.h
@@ -15,9 +15,8 @@
 
 namespace MathLib
 {
-
 template <typename MAT_T>
-bool finalizeMatrixAssembly(MAT_T &)
+bool finalizeMatrixAssembly(MAT_T& /*unused*/)
 {
     return true;
 }
diff --git a/MathLib/LinAlg/FinalizeVectorAssembly.h b/MathLib/LinAlg/FinalizeVectorAssembly.h
index a1de94eef03510a462e071f7e0da130e4aa4c014..eb47de7741f955b4e71f83ae08ee9d1807a1a60c 100644
--- a/MathLib/LinAlg/FinalizeVectorAssembly.h
+++ b/MathLib/LinAlg/FinalizeVectorAssembly.h
@@ -17,7 +17,7 @@ namespace MathLib
 {
 /// General function to finalize the vector assembly
 template <typename VEC_T>
-void finalizeVectorAssembly(VEC_T &)
+void finalizeVectorAssembly(VEC_T& /*unused*/)
 {
 }
 
diff --git a/MathLib/LinAlg/SetMatrixSparsity.h b/MathLib/LinAlg/SetMatrixSparsity.h
index 3013e9d1c2aad3074a160c092f5c575e75cef070..bbcd1ec0c42102c83ea2fd5caf400f0d09e944f5 100644
--- a/MathLib/LinAlg/SetMatrixSparsity.h
+++ b/MathLib/LinAlg/SetMatrixSparsity.h
@@ -17,8 +17,7 @@ namespace MathLib
 template <typename MATRIX, typename SPARSITY_PATTERN>
 struct SetMatrixSparsity
 {
-    void operator()(MATRIX&, SPARSITY_PATTERN const&)
-    { }
+    void operator()(MATRIX& /*unused*/, SPARSITY_PATTERN const& /*unused*/) {}
 };
 
 /// Sets the sparsity pattern of the underlying matrix.
diff --git a/MeshLib/Elements/HexRule8.h b/MeshLib/Elements/HexRule8.h
index ebf9de650b24903ebb3cc926a49ba0981e5a5df3..001a1476d9d9b0f97395dc285cbbf1f3f4d609f7 100644
--- a/MeshLib/Elements/HexRule8.h
+++ b/MeshLib/Elements/HexRule8.h
@@ -91,7 +91,7 @@ public:
     static ElementErrorCode validate(const Element* e);
 
     /// Returns the ID of a face given an array of nodes.
-    static unsigned identifyFace(Node const* const*, Node* nodes[3]);
+    static unsigned identifyFace(Node const* const* /*_nodes*/, Node* nodes[3]);
 
     /// Calculates the volume of a convex hexahedron by partitioning it into six tetrahedra.
     static double computeVolume(Node const* const* _nodes);
diff --git a/MeshLib/Elements/LineRule2.h b/MeshLib/Elements/LineRule2.h
index d5576eaf76b1b2bb91272f355c42e8690fb151ff..f671d75551778553a021cb10c68b2da030f756fe 100644
--- a/MeshLib/Elements/LineRule2.h
+++ b/MeshLib/Elements/LineRule2.h
@@ -60,7 +60,7 @@ public:
     static ElementErrorCode validate(const Element* e);
 
     /// Returns the ID of a face given an array of nodes.
-    static unsigned identifyFace(Node const* const*, Node* nodes[1]);
+    static unsigned identifyFace(Node const* const* /*_nodes*/, Node* nodes[1]);
 
     /// Calculates the length of a line
     static double computeVolume(Node const* const* _nodes);
diff --git a/MeshLib/Elements/PointRule1.h b/MeshLib/Elements/PointRule1.h
index 6f4713efcc13c89f45b12dfadf87d0ae2a2738d3..386da78e813487e96b11dfef504c634d3c59925b 100644
--- a/MeshLib/Elements/PointRule1.h
+++ b/MeshLib/Elements/PointRule1.h
@@ -55,7 +55,7 @@ public:
     static ElementErrorCode validate(const Element* e);
 
     /// Returns the ID of a face given an array of nodes.
-    static unsigned identifyFace(Node const* const*, Node* nodes[1]);
+    static unsigned identifyFace(Node const* const* /*_nodes*/, Node* nodes[1]);
 
     /// Calculates the length of a line
     static double computeVolume(Node const* const* _nodes);
diff --git a/MeshLib/Elements/PrismRule6.h b/MeshLib/Elements/PrismRule6.h
index 5e93fa003f4dc93dc8b81e45133174f129dcc34b..0682a5d5e28f7113f4014813d835a37bc1f62ee7 100644
--- a/MeshLib/Elements/PrismRule6.h
+++ b/MeshLib/Elements/PrismRule6.h
@@ -92,7 +92,7 @@ public:
     static ElementErrorCode validate(const Element* e);
 
     /// Returns the ID of a face given an array of nodes.
-    static unsigned identifyFace(Node const* const*, Node* nodes[3]);
+    static unsigned identifyFace(Node const* const* /*_nodes*/, Node* nodes[3]);
 
     /// Calculates the volume of a convex hexahedron by partitioning it into six tetrahedra.
     static double computeVolume(Node const* const* _nodes);
diff --git a/MeshLib/Elements/PyramidRule5.h b/MeshLib/Elements/PyramidRule5.h
index bdf2c0f941208718113c8e437785e0ada0d9857a..c40dd3d96bc2eabb80e5c2a836c7c18b1afdf6a8 100644
--- a/MeshLib/Elements/PyramidRule5.h
+++ b/MeshLib/Elements/PyramidRule5.h
@@ -91,7 +91,7 @@ public:
     static ElementErrorCode validate(const Element* e);
 
     /// Returns the ID of a face given an array of nodes.
-    static unsigned identifyFace(Node const* const*, Node* nodes[3]);
+    static unsigned identifyFace(Node const* const* /*_nodes*/, Node* nodes[3]);
 
     /// Calculates the volume of a convex hexahedron by partitioning it into six tetrahedra.
     static double computeVolume(Node const* const* _nodes);
diff --git a/MeshLib/Elements/QuadRule4.h b/MeshLib/Elements/QuadRule4.h
index 8a78c7a62ab8e0a6bfd21b912ca8c65958c36cc9..eb10d5df9f91ca9793b2781720baa3655920897d 100644
--- a/MeshLib/Elements/QuadRule4.h
+++ b/MeshLib/Elements/QuadRule4.h
@@ -73,7 +73,7 @@ public:
     static ElementErrorCode validate(const Element* e);
 
     /// Returns the ID of a face given an array of nodes.
-    static unsigned identifyFace(Node const* const*, Node* nodes[3]);
+    static unsigned identifyFace(Node const* const* /*_nodes*/, Node* nodes[3]);
 
     /// Calculates the volume of a convex hexahedron by partitioning it into six tetrahedra.
     static double computeVolume(Node const* const* _nodes);
diff --git a/MeshLib/Elements/TetRule4.h b/MeshLib/Elements/TetRule4.h
index 76ac9ac5930eedc03df275885900219b537b79ac..de46bf4ec99ad278b097bb78e53c2e275e8fdd16 100644
--- a/MeshLib/Elements/TetRule4.h
+++ b/MeshLib/Elements/TetRule4.h
@@ -86,7 +86,7 @@ public:
     static ElementErrorCode validate(const Element* e);
 
     /// Returns the ID of a face given an array of nodes.
-    static unsigned identifyFace(Node const* const*, Node* nodes[3]);
+    static unsigned identifyFace(Node const* const* /*_nodes*/, Node* nodes[3]);
 
     /// Calculates the volume of the element
     static double computeVolume(Node const* const* _nodes);
diff --git a/MeshLib/Elements/TriRule3.h b/MeshLib/Elements/TriRule3.h
index 67178beb3acb9d4da378fcf7e9da93b44d0686b1..56f000799292f13a724177ef5f338e43b29b4651 100644
--- a/MeshLib/Elements/TriRule3.h
+++ b/MeshLib/Elements/TriRule3.h
@@ -74,7 +74,7 @@ public:
     static ElementErrorCode validate(const Element* e);
 
     /// Returns the ID of a face given an array of nodes.
-    static unsigned identifyFace(Node const* const*, Node* nodes[3]);
+    static unsigned identifyFace(Node const* const* /*_nodes*/, Node* nodes[3]);
 
     /// Calculates the volume of a convex hexahedron by partitioning it into six tetrahedra.
     static double computeVolume(Node const* const* _nodes);
diff --git a/MeshLib/Properties.h b/MeshLib/Properties.h
index 7eb20426a596b311f6412f5c4e03320246b53432..efb465ad3b3df4068335c1ab6357949c1b04ffbc 100644
--- a/MeshLib/Properties.h
+++ b/MeshLib/Properties.h
@@ -116,7 +116,7 @@ public:
     template <typename T>
     PropertyVector<T>* getPropertyVector(std::string const& name,
                                          MeshItemType const item_type,
-                                         int const number_of_components);
+                                         int const n_components);
 
     void removePropertyVector(std::string const& name);
 
diff --git a/MeshLib/Vtk/VtkMappedMeshSource.h b/MeshLib/Vtk/VtkMappedMeshSource.h
index 05e04784cfcd157f51efcb12dddcec39416cf2a7..613d8577037e7efc328e1ec463aa2d6c4322e439 100644
--- a/MeshLib/Vtk/VtkMappedMeshSource.h
+++ b/MeshLib/Vtk/VtkMappedMeshSource.h
@@ -67,10 +67,12 @@ protected:
     int ProcessRequest(vtkInformation* request,
                        vtkInformationVector** inputVector,
                        vtkInformationVector* outputVector) override;
-    int RequestData(vtkInformation*, vtkInformationVector**,
-                    vtkInformationVector*) override;
-    int RequestInformation(vtkInformation*, vtkInformationVector**,
-                           vtkInformationVector*) override;
+    int RequestData(vtkInformation* /*request*/,
+                    vtkInformationVector** /*inputVector*/,
+                    vtkInformationVector* /*outputVector*/) override;
+    int RequestInformation(vtkInformation* /*request*/,
+                           vtkInformationVector** /*inputVector*/,
+                           vtkInformationVector* /*outputVector*/) override;
 
 private:
     /// Adds a zero-copy vtk array wrapper.
diff --git a/MeshLib/Vtk/VtkMeshNodalCoordinatesTemplate-impl.h b/MeshLib/Vtk/VtkMeshNodalCoordinatesTemplate-impl.h
index 39a659db6eda51c3bf607c17b788141e43d3baba..791a3c74c67efabb2f3271b76032dc0d66b91430 100644
--- a/MeshLib/Vtk/VtkMeshNodalCoordinatesTemplate-impl.h
+++ b/MeshLib/Vtk/VtkMeshNodalCoordinatesTemplate-impl.h
@@ -201,99 +201,113 @@ template <class Scalar> Scalar& VtkMeshNodalCoordinatesTemplate<Scalar>
     return (*(*this->_nodes)[tuple])[comp];
 }
 
-template <class Scalar> int VtkMeshNodalCoordinatesTemplate<Scalar>
-::Allocate(vtkIdType, vtkIdType)
+template <class Scalar>
+int VtkMeshNodalCoordinatesTemplate<Scalar>::Allocate(vtkIdType /*unused*/,
+                                                      vtkIdType /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return 0;
 }
 
-template <class Scalar> int VtkMeshNodalCoordinatesTemplate<Scalar>
-::Resize(vtkIdType)
+template <class Scalar>
+int VtkMeshNodalCoordinatesTemplate<Scalar>::Resize(vtkIdType /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return 0;
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::SetNumberOfTuples(vtkIdType)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::SetNumberOfTuples(
+    vtkIdType /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::SetTuple(vtkIdType, vtkIdType, vtkAbstractArray *)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::SetTuple(
+    vtkIdType /*unused*/, vtkIdType /*unused*/, vtkAbstractArray* /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::SetTuple(vtkIdType, const float *)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::SetTuple(vtkIdType /*unused*/,
+                                                       const float* /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::SetTuple(vtkIdType, const double *)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::SetTuple(vtkIdType /*unused*/,
+                                                       const double* /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::InsertTuple(vtkIdType, vtkIdType, vtkAbstractArray *)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::InsertTuple(
+    vtkIdType /*unused*/, vtkIdType /*unused*/, vtkAbstractArray* /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::InsertTuple(vtkIdType, const float *)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::InsertTuple(
+    vtkIdType /*unused*/, const float* /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::InsertTuple(vtkIdType, const double *)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::InsertTuple(
+    vtkIdType /*unused*/, const double* /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::InsertTuples(vtkIdList *, vtkIdList *, vtkAbstractArray *)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::InsertTuples(
+    vtkIdList* /*unused*/, vtkIdList* /*unused*/, vtkAbstractArray* /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::InsertTuples(vtkIdType, vtkIdType, vtkIdType, vtkAbstractArray*)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::InsertTuples(
+    vtkIdType /*unused*/, vtkIdType /*unused*/, vtkIdType /*unused*/,
+    vtkAbstractArray* /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
 }
 
-template <class Scalar> vtkIdType VtkMeshNodalCoordinatesTemplate<Scalar>
-::InsertNextTuple(vtkIdType, vtkAbstractArray *)
+template <class Scalar>
+vtkIdType VtkMeshNodalCoordinatesTemplate<Scalar>::InsertNextTuple(
+    vtkIdType /*unused*/, vtkAbstractArray* /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return -1;
 }
 
-template <class Scalar> vtkIdType VtkMeshNodalCoordinatesTemplate<Scalar>
-::InsertNextTuple(const float *)
+template <class Scalar>
+vtkIdType VtkMeshNodalCoordinatesTemplate<Scalar>::InsertNextTuple(
+    const float* /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return -1;
 }
 
-template <class Scalar> vtkIdType VtkMeshNodalCoordinatesTemplate<Scalar>
-::InsertNextTuple(const double *)
+template <class Scalar>
+vtkIdType VtkMeshNodalCoordinatesTemplate<Scalar>::InsertNextTuple(
+    const double* /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return -1;
@@ -305,44 +319,49 @@ template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
     vtkErrorMacro("Read only container.");
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::DeepCopy(vtkAbstractArray *)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::DeepCopy(
+    vtkAbstractArray* /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::DeepCopy(vtkDataArray *)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::DeepCopy(vtkDataArray* /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::InterpolateTuple(vtkIdType, vtkIdList *, vtkAbstractArray *, double *)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::InterpolateTuple(
+    vtkIdType /*unused*/, vtkIdList* /*unused*/, vtkAbstractArray* /*unused*/,
+    double* /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::InterpolateTuple(vtkIdType, vtkIdType, vtkAbstractArray*, vtkIdType,
-                   vtkAbstractArray*, double)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::InterpolateTuple(
+    vtkIdType /*unused*/, vtkIdType /*unused*/, vtkAbstractArray* /*unused*/,
+    vtkIdType /*unused*/, vtkAbstractArray* /*unused*/, double /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::SetVariantValue(vtkIdType, vtkVariant)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::SetVariantValue(
+    vtkIdType /*unused*/, vtkVariant /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::RemoveTuple(vtkIdType)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::RemoveTuple(vtkIdType /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
@@ -362,22 +381,25 @@ template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
     return;
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::SetValue(vtkIdType, Scalar)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::SetValue(vtkIdType /*unused*/,
+                                                       Scalar /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
 }
 
-template <class Scalar> vtkIdType VtkMeshNodalCoordinatesTemplate<Scalar>
-::InsertNextValue(Scalar)
+template <class Scalar>
+vtkIdType VtkMeshNodalCoordinatesTemplate<Scalar>::InsertNextValue(
+    Scalar /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return -1;
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::InsertValue(vtkIdType, Scalar)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::InsertValue(vtkIdType /*unused*/,
+                                                          Scalar /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
@@ -430,22 +452,25 @@ template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
     tuple[2] = (*(*this->_nodes)[tupleId])[2];
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::SetTypedTuple(vtkIdType, const Scalar*)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::SetTypedTuple(
+    vtkIdType /*unused*/, const Scalar* /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
 }
 
-template <class Scalar> void VtkMeshNodalCoordinatesTemplate<Scalar>
-::InsertTypedTuple(vtkIdType, const Scalar*)
+template <class Scalar>
+void VtkMeshNodalCoordinatesTemplate<Scalar>::InsertTypedTuple(
+    vtkIdType /*unused*/, const Scalar* /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return;
 }
 
-template <class Scalar> vtkIdType VtkMeshNodalCoordinatesTemplate<Scalar>
-::InsertNextTypedTuple(const Scalar *)
+template <class Scalar>
+vtkIdType VtkMeshNodalCoordinatesTemplate<Scalar>::InsertNextTypedTuple(
+    const Scalar* /*unused*/)
 {
     vtkErrorMacro("Read only container.");
     return -1;
diff --git a/MeshLib/Vtk/VtkMeshNodalCoordinatesTemplate.h b/MeshLib/Vtk/VtkMeshNodalCoordinatesTemplate.h
index 45d0eb6ba298e9ace2e31454f5de342db89c990a..cc5e9bc6856c856e4b2c2014c40f9fd9da91ce32 100644
--- a/MeshLib/Vtk/VtkMeshNodalCoordinatesTemplate.h
+++ b/MeshLib/Vtk/VtkMeshNodalCoordinatesTemplate.h
@@ -81,7 +81,9 @@ public:
     void InsertTuple(vtkIdType i, const double *source) override;
     void InsertTuples(vtkIdList *dstIds, vtkIdList *srcIds,
                       vtkAbstractArray *source) override;
-    void InsertTuples(vtkIdType, vtkIdType, vtkIdType, vtkAbstractArray*) override;
+    void InsertTuples(vtkIdType /*unused*/, vtkIdType /*unused*/,
+                      vtkIdType /*unused*/,
+                      vtkAbstractArray* /*unused*/) override;
     vtkIdType InsertNextTuple(vtkIdType j, vtkAbstractArray *source) override;
     vtkIdType InsertNextTuple(const float *source) override;
     vtkIdType InsertNextTuple(const double *source) override;
@@ -103,7 +105,7 @@ public:
 #if !(VTK_MAJOR_VERSION < 7 || VTK_MAJOR_VERSION == 7 && VTK_MINOR_VERSION < 1)
     Scalar& GetValueReference(vtkIdType idx) const;
     Scalar GetValue(vtkIdType idx) const override;
-    void GetTypedTuple(vtkIdType idx, Scalar* t) const override;
+    void GetTypedTuple(vtkIdType tupleId, Scalar* t) const override;
     void SetTypedTuple(vtkIdType i, const Scalar* t) override;
     void InsertTypedTuple(vtkIdType i, const Scalar* t) override;
     vtkIdType InsertNextTypedTuple(const Scalar* t) override;
diff --git a/NumLib/DOF/LocalToGlobalIndexMap.h b/NumLib/DOF/LocalToGlobalIndexMap.h
index 50d3602016b54becf33cd7eb16b3aee4dc4a08b2..6795460a08037b3c411c5f6bcca28c3039582568 100644
--- a/NumLib/DOF/LocalToGlobalIndexMap.h
+++ b/NumLib/DOF/LocalToGlobalIndexMap.h
@@ -174,7 +174,8 @@ public:
         std::vector<int> const& global_component_ids,
         std::vector<int> const& variable_component_offsets,
         std::vector<MeshLib::Element*> const& elements,
-        NumLib::MeshComponentMap&& mesh_component_map, ConstructorTag);
+        NumLib::MeshComponentMap&& mesh_component_map,
+        ConstructorTag /*unused*/);
 
 private:
     template <typename ElementIterator>
diff --git a/NumLib/Fem/CoordinatesMapping/ShapeMatrices-impl.h b/NumLib/Fem/CoordinatesMapping/ShapeMatrices-impl.h
index e3ef9f6eb83e79a0ea15d7b6b5cef1e439a058d6..e6c8810d219ec3387a12636c23d91b9eea2a34db 100644
--- a/NumLib/Fem/CoordinatesMapping/ShapeMatrices-impl.h
+++ b/NumLib/Fem/CoordinatesMapping/ShapeMatrices-impl.h
@@ -50,19 +50,22 @@ void setVectorZero(T &vec)
 template <ShapeMatrixType FIELD_TYPE> struct ShapeDataFieldType {};
 
 template <class T_N, class T_DNDR, class T_J, class T_DNDX>
-inline void setZero(ShapeMatrices<T_N, T_DNDR, T_J, T_DNDX> &shape, ShapeDataFieldType<ShapeMatrixType::N>)
+inline void setZero(ShapeMatrices<T_N, T_DNDR, T_J, T_DNDX>& shape,
+                    ShapeDataFieldType<ShapeMatrixType::N> /*unused*/)
 {
     setVectorZero(shape.N);
 }
 
 template <class T_N, class T_DNDR, class T_J, class T_DNDX>
-inline void setZero(ShapeMatrices<T_N, T_DNDR, T_J, T_DNDX> &shape, ShapeDataFieldType<ShapeMatrixType::DNDR>)
+inline void setZero(ShapeMatrices<T_N, T_DNDR, T_J, T_DNDX>& shape,
+                    ShapeDataFieldType<ShapeMatrixType::DNDR> /*unused*/)
 {
     setMatrixZero(shape.dNdr);
 }
 
 template <class T_N, class T_DNDR, class T_J, class T_DNDX>
-inline void setZero(ShapeMatrices<T_N, T_DNDR, T_J, T_DNDX> &shape, ShapeDataFieldType<ShapeMatrixType::DNDR_J>)
+inline void setZero(ShapeMatrices<T_N, T_DNDR, T_J, T_DNDX>& shape,
+                    ShapeDataFieldType<ShapeMatrixType::DNDR_J> /*unused*/)
 {
     setZero(shape, ShapeDataFieldType<ShapeMatrixType::DNDR>());
     setMatrixZero(shape.J);
@@ -71,14 +74,16 @@ inline void setZero(ShapeMatrices<T_N, T_DNDR, T_J, T_DNDX> &shape, ShapeDataFie
 }
 
 template <class T_N, class T_DNDR, class T_J, class T_DNDX>
-inline void setZero(ShapeMatrices<T_N, T_DNDR, T_J, T_DNDX> &shape, ShapeDataFieldType<ShapeMatrixType::N_J>)
+inline void setZero(ShapeMatrices<T_N, T_DNDR, T_J, T_DNDX>& shape,
+                    ShapeDataFieldType<ShapeMatrixType::N_J> /*unused*/)
 {
     setZero(shape, ShapeDataFieldType<ShapeMatrixType::N>());
     setZero(shape, ShapeDataFieldType<ShapeMatrixType::DNDR_J>());
 }
 
 template <class T_N, class T_DNDR, class T_J, class T_DNDX>
-inline void setZero(ShapeMatrices<T_N, T_DNDR, T_J, T_DNDX> &shape, ShapeDataFieldType<ShapeMatrixType::DNDX>)
+inline void setZero(ShapeMatrices<T_N, T_DNDR, T_J, T_DNDX>& shape,
+                    ShapeDataFieldType<ShapeMatrixType::DNDX> /*unused*/)
 {
     setZero(shape, ShapeDataFieldType<ShapeMatrixType::DNDR_J>());
     setMatrixZero(shape.invJ);
@@ -86,7 +91,8 @@ inline void setZero(ShapeMatrices<T_N, T_DNDR, T_J, T_DNDX> &shape, ShapeDataFie
 }
 
 template <class T_N, class T_DNDR, class T_J, class T_DNDX>
-inline void setZero(ShapeMatrices<T_N, T_DNDR, T_J, T_DNDX> &shape, ShapeDataFieldType<ShapeMatrixType::ALL>)
+inline void setZero(ShapeMatrices<T_N, T_DNDR, T_J, T_DNDX>& shape,
+                    ShapeDataFieldType<ShapeMatrixType::ALL> /*unused*/)
 {
     setZero(shape, ShapeDataFieldType<ShapeMatrixType::N>());
     setZero(shape, ShapeDataFieldType<ShapeMatrixType::DNDX>());
diff --git a/NumLib/Fem/ShapeFunction/ShapePrism15.h b/NumLib/Fem/ShapeFunction/ShapePrism15.h
index 26dab800d4bb7e728a146c231b6d5c26adc14882..1fc4f8abe69255368b7de16a9eedf601714fbc89 100644
--- a/NumLib/Fem/ShapeFunction/ShapePrism15.h
+++ b/NumLib/Fem/ShapeFunction/ShapePrism15.h
@@ -28,7 +28,7 @@ public:
      * @param [out] N   a vector of calculated shape functions
      */
     template <class T_X, class T_N>
-    static void computeShapeFunction(const T_X &r, T_N &N);
+    static void computeShapeFunction(const T_X& x, T_N& N);
 
     /**
      * Evaluate derivatives of the shape function at the given point
@@ -37,7 +37,7 @@ public:
      * @param [out] dN  a matrix of the derivatives
      */
     template <class T_X, class T_N>
-    static void computeGradShapeFunction(const T_X &r, T_N &dN);
+    static void computeGradShapeFunction(const T_X& x, T_N& dN);
 
     using MeshElement = MeshLib::Prism15;
     static const unsigned DIM = MeshElement::dimension;
diff --git a/NumLib/Fem/ShapeFunction/ShapePrism6.h b/NumLib/Fem/ShapeFunction/ShapePrism6.h
index 12dd8456be5b1d9ac83b7f883ce7143f0ef8974a..fd392232aed793f51969a8706884e960c4c30a5e 100644
--- a/NumLib/Fem/ShapeFunction/ShapePrism6.h
+++ b/NumLib/Fem/ShapeFunction/ShapePrism6.h
@@ -28,7 +28,7 @@ public:
      * @param [out] N   a vector of calculated shape functions
      */
     template <class T_X, class T_N>
-    static void computeShapeFunction(const T_X &r, T_N &N);
+    static void computeShapeFunction(const T_X& x, T_N& N);
 
     /**
      * Evaluate derivatives of the shape function at the given point
@@ -37,7 +37,7 @@ public:
      * @param [out] dN  a matrix of the derivatives
      */
     template <class T_X, class T_N>
-    static void computeGradShapeFunction(const T_X &r, T_N &dN);
+    static void computeGradShapeFunction(const T_X& x, T_N& dN);
 
     using MeshElement = MeshLib::Prism;
     static const unsigned DIM = MeshElement::dimension;
diff --git a/NumLib/Fem/ShapeFunction/ShapePyra13.h b/NumLib/Fem/ShapeFunction/ShapePyra13.h
index d66f49fac800488a1e7e81d3baa32771b9f3bbd2..8c7446fd7a740a0158fcb0ba3d3a54ac52287b1a 100644
--- a/NumLib/Fem/ShapeFunction/ShapePyra13.h
+++ b/NumLib/Fem/ShapeFunction/ShapePyra13.h
@@ -28,7 +28,7 @@ public:
      * @param [out] N   a vector of calculated shape functions
      */
     template <class T_X, class T_N>
-    static void computeShapeFunction(const T_X &r, T_N &N);
+    static void computeShapeFunction(const T_X& x, T_N& N);
 
     /**
      * Evaluate derivatives of the shape function at the given point
@@ -37,7 +37,7 @@ public:
      * @param [out] dN  a matrix of the derivatives
      */
     template <class T_X, class T_N>
-    static void computeGradShapeFunction(const T_X &r, T_N &dN);
+    static void computeGradShapeFunction(const T_X& x, T_N& dN);
 
     using MeshElement = MeshLib::Pyramid13;
     static const unsigned DIM = MeshElement::dimension;
diff --git a/NumLib/Fem/ShapeFunction/ShapePyra5.h b/NumLib/Fem/ShapeFunction/ShapePyra5.h
index 2bd1fd5a52566efbd0fe70d383bc5908f646df1c..50d56e71161b8b3fc9c876f34e7afeb7a893ba2c 100644
--- a/NumLib/Fem/ShapeFunction/ShapePyra5.h
+++ b/NumLib/Fem/ShapeFunction/ShapePyra5.h
@@ -28,7 +28,7 @@ public:
      * @param [out] N   a vector of calculated shape functions
      */
     template <class T_X, class T_N>
-    static void computeShapeFunction(const T_X &r, T_N &N);
+    static void computeShapeFunction(const T_X& x, T_N& N);
 
     /**
      * Evaluate derivatives of the shape function at the given point
@@ -37,7 +37,7 @@ public:
      * @param [out] dN  a matrix of the derivatives
      */
     template <class T_X, class T_N>
-    static void computeGradShapeFunction(const T_X &r, T_N &dN);
+    static void computeGradShapeFunction(const T_X& x, T_N& dN);
 
     using MeshElement = MeshLib::Pyramid;
     static const unsigned DIM = MeshElement::dimension;
diff --git a/NumLib/NamedFunction.h b/NumLib/NamedFunction.h
index 80100218dfff3a601133f700b728ed6d8a96cd07..d415bc8f66bc65e05da50c30191ed90832834c3c 100644
--- a/NumLib/NamedFunction.h
+++ b/NumLib/NamedFunction.h
@@ -63,7 +63,7 @@ public:
                   std::function<ReturnType(Arguments...)>&& function);
 
     NamedFunction(NamedFunction&& other);
-    NamedFunction(NamedFunction const&);
+    NamedFunction(NamedFunction const& other);
 
     ~NamedFunction();
 
diff --git a/NumLib/NamedFunctionCaller.h b/NumLib/NamedFunctionCaller.h
index 365b1907a373a68141597ec30e994d4fc7f4d9c3..6c98637c2bf377cfd9cb44f338579d0cf6f14535 100644
--- a/NumLib/NamedFunctionCaller.h
+++ b/NumLib/NamedFunctionCaller.h
@@ -22,7 +22,7 @@ class NamedFunctionCaller final
 {
 public:
     //! Constructs an instance whose unbound arguments have the given names.
-    explicit NamedFunctionCaller(
+    NamedFunctionCaller(
         std::initializer_list<std::string> unbound_argument_names);
 
     //! Adds the given named function
diff --git a/NumLib/ODESolver/TimeDiscretization.h b/NumLib/ODESolver/TimeDiscretization.h
index 8bf113f9281e9d12190a3a79aca44acd170ae53f..9694ad7749375ffe34e201ba232d841ade678682 100644
--- a/NumLib/ODESolver/TimeDiscretization.h
+++ b/NumLib/ODESolver/TimeDiscretization.h
@@ -269,7 +269,7 @@ public:
         GlobalVector const& x, MathLib::VecNormType norm_type) override;
 
     void pushState(const double /*t*/, GlobalVector const& x,
-                   InternalMatrixStorage const&) override
+                   InternalMatrixStorage const& /*strg*/) override
     {
         MathLib::LinAlg::copy(x, _x_old);
     }
@@ -327,7 +327,7 @@ public:
         GlobalVector const& x, MathLib::VecNormType norm_type) override;
 
     void pushState(const double /*t*/, GlobalVector const& x,
-                   InternalMatrixStorage const&) override
+                   InternalMatrixStorage const& /*strg*/) override
     {
         MathLib::LinAlg::copy(x, _x_old);
     }
@@ -411,7 +411,7 @@ public:
     double getRelativeChangeFromPreviousTimestep(
         GlobalVector const& x, MathLib::VecNormType norm_type) override;
 
-    void pushState(const double, GlobalVector const& x,
+    void pushState(const double /*t*/, GlobalVector const& x,
                    InternalMatrixStorage const& strg) override
     {
         MathLib::LinAlg::copy(x, _x_old);
@@ -494,8 +494,8 @@ public:
     double getRelativeChangeFromPreviousTimestep(
         GlobalVector const& x, MathLib::VecNormType norm_type) override;
 
-    void pushState(const double, GlobalVector const& x,
-                   InternalMatrixStorage const&) override;
+    void pushState(const double /*t*/, GlobalVector const& x,
+                   InternalMatrixStorage const& /*strg*/) override;
 
     void popState(GlobalVector& x) override
     {
diff --git a/ParameterLib/GroupBasedParameter.h b/ParameterLib/GroupBasedParameter.h
index 71d9d979cdfcba3fa5d18f21c107f9771e5059ae..f0064d1e96ad05458b49e8882dd15b9f4de4e4cc 100644
--- a/ParameterLib/GroupBasedParameter.h
+++ b/ParameterLib/GroupBasedParameter.h
@@ -84,13 +84,15 @@ private:
     };
 
     static boost::optional<std::size_t> getMeshItemID(
-        SpatialPosition const& pos, type<MeshLib::MeshItemType::Cell>)
+        SpatialPosition const& pos,
+        type<MeshLib::MeshItemType::Cell> /*unused*/)
     {
         return pos.getElementID();
     }
 
     static boost::optional<std::size_t> getMeshItemID(
-        SpatialPosition const& pos, type<MeshLib::MeshItemType::Node>)
+        SpatialPosition const& pos,
+        type<MeshLib::MeshItemType::Node> /*unused*/)
     {
         return pos.getNodeID();
     }
diff --git a/ProcessLib/HydroMechanics/LocalDataInitializer.h b/ProcessLib/HydroMechanics/LocalDataInitializer.h
index 123de39a53c53672309c6e72ce3bcf00cb2619ac..0c32fd94ae01102b60465655b81b8038e95ec12d 100644
--- a/ProcessLib/HydroMechanics/LocalDataInitializer.h
+++ b/ProcessLib/HydroMechanics/LocalDataInitializer.h
@@ -255,7 +255,7 @@ private:
     /// 1),
     /// (Line2, 2), (Line2, 3), (Hex20, 3) but not (Hex20, 2) or (Hex20, 1).
     template <typename ShapeFunctionDisplacement>
-    static LADataBuilder makeLocalAssemblerBuilder(std::true_type*)
+    static LADataBuilder makeLocalAssemblerBuilder(std::true_type* /*unused*/)
     {
         // (Lower order elements = Order(ShapeFunctionDisplacement) - 1).
         using ShapeFunctionPressure =
@@ -273,7 +273,7 @@ private:
     /// Returns nullptr for shape functions whose dimensions are less than the
     /// global dimension.
     template <typename ShapeFunctionDisplacement>
-    static LADataBuilder makeLocalAssemblerBuilder(std::false_type*)
+    static LADataBuilder makeLocalAssemblerBuilder(std::false_type* /*unused*/)
     {
         return nullptr;
     }
diff --git a/ProcessLib/LIE/HydroMechanics/LocalAssembler/HydroMechanicsLocalAssemblerMatrixNearFracture.h b/ProcessLib/LIE/HydroMechanics/LocalAssembler/HydroMechanicsLocalAssemblerMatrixNearFracture.h
index be07a6d3fbd7eb0179d5fcda6fcc9c08b4aed364..c44c76d63e2b2c4d56302eeb7789d8b3dbfb213b 100644
--- a/ProcessLib/LIE/HydroMechanics/LocalAssembler/HydroMechanicsLocalAssemblerMatrixNearFracture.h
+++ b/ProcessLib/LIE/HydroMechanics/LocalAssembler/HydroMechanicsLocalAssemblerMatrixNearFracture.h
@@ -55,8 +55,8 @@ public:
 
 private:
     void assembleWithJacobianConcrete(double const t,
-                                      Eigen::VectorXd const& local_u,
-                                      Eigen::VectorXd const& local_udot,
+                                      Eigen::VectorXd const& local_x,
+                                      Eigen::VectorXd const& local_x_dot,
                                       Eigen::VectorXd& local_b,
                                       Eigen::MatrixXd& local_J) override;
 
diff --git a/ProcessLib/LIE/HydroMechanics/LocalAssembler/LocalDataInitializer.h b/ProcessLib/LIE/HydroMechanics/LocalAssembler/LocalDataInitializer.h
index 106070878f6268c7ea04438965eb7046b365a46d..ed9fa66adf58090a742a92c1ebeb1da700adbae5 100644
--- a/ProcessLib/LIE/HydroMechanics/LocalAssembler/LocalDataInitializer.h
+++ b/ProcessLib/LIE/HydroMechanics/LocalAssembler/LocalDataInitializer.h
@@ -339,7 +339,7 @@ private:
     /// 1),
     /// (Line2, 2), (Line2, 3), (Hex20, 3) but not (Hex20, 2) or (Hex20, 1).
     template <typename ShapeFunctionDisplacement>
-    static LADataBuilder makeLocalAssemblerBuilder(std::true_type*)
+    static LADataBuilder makeLocalAssemblerBuilder(std::true_type* /*unused*/)
     {
         // (Lower order elements = Order(ShapeFunctionDisplacement) - 1).
         using ShapeFunctionPressure =
@@ -375,7 +375,7 @@ private:
     /// Returns nullptr for shape functions whose dimensions are less than the
     /// global dimension.
     template <typename ShapeFunctionDisplacement>
-    static LADataBuilder makeLocalAssemblerBuilder(std::false_type*)
+    static LADataBuilder makeLocalAssemblerBuilder(std::false_type* /*unused*/)
     {
         return nullptr;
     }
diff --git a/ProcessLib/LIE/SmallDeformation/LocalAssembler/LocalDataInitializer.h b/ProcessLib/LIE/SmallDeformation/LocalAssembler/LocalDataInitializer.h
index bd64e20df2292132f892a9ba2b23005092eff400..f02a619189c34e45db88d90bf062236524683181 100644
--- a/ProcessLib/LIE/SmallDeformation/LocalAssembler/LocalDataInitializer.h
+++ b/ProcessLib/LIE/SmallDeformation/LocalAssembler/LocalDataInitializer.h
@@ -343,7 +343,7 @@ private:
     /// combinations of shape functions and global dimensions: (Line2, 1),
     /// (Line2, 2), (Line2, 3), (Hex20, 3) but not (Hex20, 2) or (Hex20, 1).
     template <typename ShapeFunction>
-    static LADataBuilder makeLocalAssemblerBuilder(std::true_type*)
+    static LADataBuilder makeLocalAssemblerBuilder(std::true_type* /*unused*/)
     {
         return [](MeshLib::Element const& e,
                   std::size_t const n_variables,
@@ -374,7 +374,7 @@ private:
     /// Returns nullptr for shape functions whose dimensions are less than the
     /// global dimension.
     template <typename ShapeFunction>
-    static LADataBuilder makeLocalAssemblerBuilder(std::false_type*)
+    static LADataBuilder makeLocalAssemblerBuilder(std::false_type* /*unused*/)
     {
         return nullptr;
     }
diff --git a/ProcessLib/LIE/SmallDeformation/LocalAssembler/SmallDeformationLocalAssemblerFracture.h b/ProcessLib/LIE/SmallDeformation/LocalAssembler/SmallDeformationLocalAssemblerFracture.h
index 9174300f014a4dc0f9345bea63c20dab6b092a38..8df89c26179775fc76da200ec4b9867de6aa317e 100644
--- a/ProcessLib/LIE/SmallDeformation/LocalAssembler/SmallDeformationLocalAssemblerFracture.h
+++ b/ProcessLib/LIE/SmallDeformation/LocalAssembler/SmallDeformationLocalAssemblerFracture.h
@@ -92,7 +92,7 @@ public:
     }
 
     void computeSecondaryVariableConcreteWithVector(
-        const double t, Eigen::VectorXd const& local_x) override;
+        const double t, Eigen::VectorXd const& local_u) override;
 
     Eigen::Map<const Eigen::RowVectorXd> getShapeMatrix(
         const unsigned integration_point) const override
diff --git a/ProcessLib/ProcessVariable.h b/ProcessLib/ProcessVariable.h
index 30b374aa60b0152d5c95e30ab4fcaa0c4787ec84..23838df06f432f8abdafe25611b57b46611dbf5b 100644
--- a/ProcessLib/ProcessVariable.h
+++ b/ProcessLib/ProcessVariable.h
@@ -51,7 +51,7 @@ public:
         std::vector<std::unique_ptr<ParameterLib::ParameterBase>> const&
             parameters);
 
-    ProcessVariable(ProcessVariable&&);
+    ProcessVariable(ProcessVariable&& other);
 
     std::string const& getName() const;
 
diff --git a/ProcessLib/RichardsMechanics/LocalDataInitializer.h b/ProcessLib/RichardsMechanics/LocalDataInitializer.h
index b6a4eb63db8b809d70a36e6d28a5804631c13c97..8f3dafe35a446c5afc7cc4b9d3b3220fc7f7d967 100644
--- a/ProcessLib/RichardsMechanics/LocalDataInitializer.h
+++ b/ProcessLib/RichardsMechanics/LocalDataInitializer.h
@@ -255,7 +255,7 @@ private:
     /// 1),
     /// (Line2, 2), (Line2, 3), (Hex20, 3) but not (Hex20, 2) or (Hex20, 1).
     template <typename ShapeFunctionDisplacement>
-    static LADataBuilder makeLocalAssemblerBuilder(std::true_type*)
+    static LADataBuilder makeLocalAssemblerBuilder(std::true_type* /*unused*/)
     {
         // (Lower order elements = Order(ShapeFunctionDisplacement) - 1).
         using ShapeFunctionPressure =
@@ -273,7 +273,7 @@ private:
     /// Returns nullptr for shape functions whose dimensions are less than the
     /// global dimension.
     template <typename ShapeFunctionDisplacement>
-    static LADataBuilder makeLocalAssemblerBuilder(std::false_type*)
+    static LADataBuilder makeLocalAssemblerBuilder(std::false_type* /*unused*/)
     {
         return nullptr;
     }
diff --git a/ProcessLib/SmallDeformation/LocalDataInitializer.h b/ProcessLib/SmallDeformation/LocalDataInitializer.h
index a266324c43e692277a03985249eab736f7afd04e..47ef8894f02b51d3c79183fc559d210a82076742 100644
--- a/ProcessLib/SmallDeformation/LocalDataInitializer.h
+++ b/ProcessLib/SmallDeformation/LocalDataInitializer.h
@@ -274,7 +274,7 @@ private:
     /// combinations of shape functions and global dimensions: (Line2, 1),
     /// (Line2, 2), (Line2, 3), (Hex20, 3) but not (Hex20, 2) or (Hex20, 1).
     template <typename ShapeFunction>
-    static LADataBuilder makeLocalAssemblerBuilder(std::true_type*)
+    static LADataBuilder makeLocalAssemblerBuilder(std::true_type* /*unused*/)
     {
         return [](MeshLib::Element const& e,
                   std::size_t const local_matrix_size,
@@ -287,7 +287,7 @@ private:
     /// Returns nullptr for shape functions whose dimensions are less than the
     /// global dimension.
     template <typename ShapeFunction>
-    static LADataBuilder makeLocalAssemblerBuilder(std::false_type*)
+    static LADataBuilder makeLocalAssemblerBuilder(std::false_type* /*unused*/)
     {
         return nullptr;
     }
diff --git a/ProcessLib/TES/TESReactionAdaptor.h b/ProcessLib/TES/TESReactionAdaptor.h
index 331c64bea242b21e55aa64cee1cc44d51a3316d0..a2c6a2b51c922f84444c67a2e72987fbd3e0c780 100644
--- a/ProcessLib/TES/TESReactionAdaptor.h
+++ b/ProcessLib/TES/TESReactionAdaptor.h
@@ -86,7 +86,7 @@ private:
 class TESFEMReactionAdaptorInert final : public TESFEMReactionAdaptor
 {
 public:
-    explicit TESFEMReactionAdaptorInert(TESLocalAssemblerData const&);
+    explicit TESFEMReactionAdaptorInert(TESLocalAssemblerData const& /*data*/);
 
     ReactionRate initReaction(const unsigned int_pt) override;
 
@@ -99,7 +99,7 @@ class TESFEMReactionAdaptorSinusoidal final : public TESFEMReactionAdaptor
 public:
     explicit TESFEMReactionAdaptorSinusoidal(TESLocalAssemblerData const& data);
 
-    ReactionRate initReaction(const unsigned) override;
+    ReactionRate initReaction(const unsigned /*int_pt*/) override;
 
 private:
     TESLocalAssemblerData const& _d;
@@ -110,7 +110,7 @@ class TESFEMReactionAdaptorCaOH2 final : public TESFEMReactionAdaptor
 public:
     explicit TESFEMReactionAdaptorCaOH2(TESLocalAssemblerData const& data);
 
-    ReactionRate initReaction(const unsigned) override;
+    ReactionRate initReaction(const unsigned /*int_pt*/) override;
 
 private:
     using Data = TESLocalAssemblerData;
diff --git a/ProcessLib/ThermoHydroMechanics/LocalDataInitializer.h b/ProcessLib/ThermoHydroMechanics/LocalDataInitializer.h
index f8801c2b3315c5c69a4f8719fb7aeb81870c6069..b624e5c15008db4d560ab57a409cf088e2291cad 100644
--- a/ProcessLib/ThermoHydroMechanics/LocalDataInitializer.h
+++ b/ProcessLib/ThermoHydroMechanics/LocalDataInitializer.h
@@ -254,7 +254,7 @@ private:
     /// 1),
     /// (Line2, 2), (Line2, 3), (Hex20, 3) but not (Hex20, 2) or (Hex20, 1).
     template <typename ShapeFunctionDisplacement>
-    static LADataBuilder makeLocalAssemblerBuilder(std::true_type*)
+    static LADataBuilder makeLocalAssemblerBuilder(std::true_type* /*unused*/)
     {
         // (Lower order elements = Order(ShapeFunctionDisplacement) - 1).
         using ShapeFunctionPressure =
@@ -272,7 +272,7 @@ private:
     /// Returns nullptr for shape functions whose dimensions are less than the
     /// global dimension.
     template <typename ShapeFunctionDisplacement>
-    static LADataBuilder makeLocalAssemblerBuilder(std::false_type*)
+    static LADataBuilder makeLocalAssemblerBuilder(std::false_type* /*unused*/)
     {
         return nullptr;
     }
diff --git a/ProcessLib/Utils/LocalDataInitializer.h b/ProcessLib/Utils/LocalDataInitializer.h
index e51b329c2c947e99f38df39b71bd3cddf38bd157..f368b986cf8eb1f7ea18911a8eff5e352fdf2e5d 100644
--- a/ProcessLib/Utils/LocalDataInitializer.h
+++ b/ProcessLib/Utils/LocalDataInitializer.h
@@ -371,7 +371,7 @@ private:
     /// combinations of shape functions and global dimensions: (Line2, 1),
     /// (Line2, 2), (Line2, 3), (Hex20, 3) but not (Hex20, 2) or (Hex20, 1).
     template <typename ShapeFunction>
-    static LADataBuilder makeLocalAssemblerBuilder(std::true_type*)
+    static LADataBuilder makeLocalAssemblerBuilder(std::true_type* /*unused*/)
     {
         return [](MeshLib::Element const& e,
                   std::size_t const local_matrix_size,
@@ -384,7 +384,7 @@ private:
     /// Returns nullptr for shape functions whose dimensions are less than the
     /// global dimension.
     template <typename ShapeFunction>
-    static LADataBuilder makeLocalAssemblerBuilder(std::false_type*)
+    static LADataBuilder makeLocalAssemblerBuilder(std::false_type* /*unused*/)
     {
         return nullptr;
     }
diff --git a/ProcessLib/VariableTransformation.h b/ProcessLib/VariableTransformation.h
index 2f00a1d20f9985f1474a20a513cf46a871bfeb83..5162e027dc949f7ef34eb91837569038dbc58cc1 100644
--- a/ProcessLib/VariableTransformation.h
+++ b/ProcessLib/VariableTransformation.h
@@ -65,7 +65,7 @@ struct TrafoTanh
 
 struct TrafoScale
 {
-    TrafoScale(const double factor) : _factor{factor} {}
+    explicit TrafoScale(const double factor) : _factor{factor} {}
 
     static const bool constrained = false;
 
diff --git a/Tests/AutoCheckTools.h b/Tests/AutoCheckTools.h
index f28ebd5ab2ddeb8ff754c434591162257e9e3806..03aec6d7fa0c444d9fd52b389675496e612a28a0 100644
--- a/Tests/AutoCheckTools.h
+++ b/Tests/AutoCheckTools.h
@@ -122,13 +122,10 @@ struct randomCoordinateIndexGenerator
     Gen source;
     using result_type = T;
 
-    result_type operator()(std::size_t)
-    {
-        return source() % DIM;
-    }
+    result_type operator()(std::size_t /*unused*/) { return source() % DIM; }
 };
 
-inline double absoluteValue(double&& v, std::size_t)
+inline double absoluteValue(double&& v, std::size_t /*unused*/)
 {
     return std::abs(v);
 }
diff --git a/Tests/InstanceCounter.h b/Tests/InstanceCounter.h
index b1fa755a4663b067241ac2093aa137c551d0ac5a..50a22b2473f2dd706c4e134149bb2c7e5a3be3cd 100644
--- a/Tests/InstanceCounter.h
+++ b/Tests/InstanceCounter.h
@@ -16,12 +16,8 @@ public:
     InstanceCounter() {
         ++_num_constructed;
     }
-    InstanceCounter(InstanceCounter<T> const&) {
-        ++_num_copied;
-    }
-    InstanceCounter(InstanceCounter<T>&&) {
-        ++_num_moved;
-    }
+    InstanceCounter(InstanceCounter<T> const& /*unused*/) { ++_num_copied; }
+    InstanceCounter(InstanceCounter<T>&& /*unused*/) { ++_num_moved; }
     virtual ~InstanceCounter() {
         ++_num_destroyed;
     }
diff --git a/Tests/NumLib/SteadyDiffusion2DExample1.h b/Tests/NumLib/SteadyDiffusion2DExample1.h
index d8f91bc10ed87b0f43055d9a7807c700c825ac7f..b89f4d5d4bf0614d0de5b0a11ab493b56a4cf3f7 100644
--- a/Tests/NumLib/SteadyDiffusion2DExample1.h
+++ b/Tests/NumLib/SteadyDiffusion2DExample1.h
@@ -31,10 +31,10 @@ template<typename IndexType>struct SteadyDiffusion2DExample1
     class LocalAssemblerData
     {
     public:
-        void init(MeshLib::Element const&,
-            std::size_t const /*local_matrix_size*/,
-            LocalMatrixType const& localA,
-            LocalVectorType const& localRhs)
+        void init(MeshLib::Element const& /*unused*/,
+                  std::size_t const /*local_matrix_size*/,
+                  LocalMatrixType const& localA,
+                  LocalVectorType const& localRhs)
         {
             _localA = &localA;
             _localRhs = &localRhs;