diff --git a/src/libs/modelinglib/qmt/diagram_controller/diagramcontroller.cpp b/src/libs/modelinglib/qmt/diagram_controller/diagramcontroller.cpp
index 7b75d792708..9352335181d 100644
--- a/src/libs/modelinglib/qmt/diagram_controller/diagramcontroller.cpp
+++ b/src/libs/modelinglib/qmt/diagram_controller/diagramcontroller.cpp
@@ -326,8 +326,8 @@ private:
 
 DiagramController::DiagramController(QObject *parent)
     : QObject(parent),
-      m_modelController(0),
-      m_undoController(0)
+      m_modelController(nullptr),
+      m_undoController(nullptr)
 {
 }
 
diff --git a/src/libs/modelinglib/qmt/diagram_scene/diagramscenemodelitemvisitors.cpp b/src/libs/modelinglib/qmt/diagram_scene/diagramscenemodelitemvisitors.cpp
index 565d656ba00..370b901d6b2 100644
--- a/src/libs/modelinglib/qmt/diagram_scene/diagramscenemodelitemvisitors.cpp
+++ b/src/libs/modelinglib/qmt/diagram_scene/diagramscenemodelitemvisitors.cpp
@@ -54,7 +54,7 @@ namespace qmt {
 
 DiagramSceneModel::CreationVisitor::CreationVisitor(DiagramSceneModel *diagramSceneModel)
     : m_diagramSceneModel(diagramSceneModel),
-      m_graphicsItem(0)
+      m_graphicsItem(nullptr)
 {
 }
 
diff --git a/src/libs/modelinglib/qmt/diagram_scene/latchcontroller.cpp b/src/libs/modelinglib/qmt/diagram_scene/latchcontroller.cpp
index bd519df5979..f9b7643e9f5 100644
--- a/src/libs/modelinglib/qmt/diagram_scene/latchcontroller.cpp
+++ b/src/libs/modelinglib/qmt/diagram_scene/latchcontroller.cpp
@@ -41,7 +41,7 @@ namespace qmt {
 
 LatchController::LatchController(QObject *parent)
     : QObject(parent),
-      m_diagramSceneModel(0),
+      m_diagramSceneModel(nullptr),
       m_horizontalAlignLine(new AlignLineItem(AlignLineItem::Horizontal, 0)),
       m_verticalAlignLine(new AlignLineItem(AlignLineItem::Vertical, 0)),
       m_foundHorizontalLatch(false),
diff --git a/src/libs/modelinglib/qmt/diagram_scene/parts/arrowitem.cpp b/src/libs/modelinglib/qmt/diagram_scene/parts/arrowitem.cpp
index 6874fe23c2e..7de0bf0d984 100644
--- a/src/libs/modelinglib/qmt/diagram_scene/parts/arrowitem.cpp
+++ b/src/libs/modelinglib/qmt/diagram_scene/parts/arrowitem.cpp
@@ -248,9 +248,9 @@ ArrowItem::ArrowItem(const ArrowItem &rhs, QGraphicsItem *parent)
       m_arrowSize(rhs.m_arrowSize),
       m_diamondSize(rhs.m_diamondSize),
       m_startHead(rhs.m_startHead),
-      m_startHeadItem(0),
+      m_startHeadItem(nullptr),
       m_endHead(rhs.m_endHead),
-      m_endHeadItem(0)
+      m_endHeadItem(nullptr)
 {
 }
 
diff --git a/src/libs/modelinglib/qmt/diagram_scene/parts/arrowitem.h b/src/libs/modelinglib/qmt/diagram_scene/parts/arrowitem.h
index c4865e5a69f..0f4af541fc2 100644
--- a/src/libs/modelinglib/qmt/diagram_scene/parts/arrowitem.h
+++ b/src/libs/modelinglib/qmt/diagram_scene/parts/arrowitem.h
@@ -88,13 +88,13 @@ private:
     void updateGeometry();
 
     Shaft m_shaft = ShaftSolid;
-    GraphicsShaftItem *m_shaftItem = 0;
+    GraphicsShaftItem *m_shaftItem = nullptr;
     double m_arrowSize = 10.0;
     double m_diamondSize = 15.0;
     Head m_startHead = HeadNone;
-    GraphicsHeadItem *m_startHeadItem = 0;
+    GraphicsHeadItem *m_startHeadItem = nullptr;
     Head m_endHead = HeadNone;
-    GraphicsHeadItem *m_endHeadItem = 0;
+    GraphicsHeadItem *m_endHeadItem = nullptr;
     QList<QPointF> m_points;
 };
 
diff --git a/src/libs/modelinglib/qmt/diagram_ui/sceneinspector.cpp b/src/libs/modelinglib/qmt/diagram_ui/sceneinspector.cpp
index 55e6f853573..283506cb2ae 100644
--- a/src/libs/modelinglib/qmt/diagram_ui/sceneinspector.cpp
+++ b/src/libs/modelinglib/qmt/diagram_ui/sceneinspector.cpp
@@ -39,7 +39,7 @@ namespace qmt {
 
 SceneInspector::SceneInspector(QObject *parent)
     : QObject(parent),
-      m_diagramsManager(0)
+      m_diagramsManager(nullptr)
 {
 }
 
diff --git a/src/libs/modelinglib/qmt/diagram_widgets_ui/diagramsview.cpp b/src/libs/modelinglib/qmt/diagram_widgets_ui/diagramsview.cpp
index 635f764ab46..f878944159a 100644
--- a/src/libs/modelinglib/qmt/diagram_widgets_ui/diagramsview.cpp
+++ b/src/libs/modelinglib/qmt/diagram_widgets_ui/diagramsview.cpp
@@ -38,7 +38,7 @@ namespace qmt {
 
 DiagramsView::DiagramsView(QWidget *parent)
     : QTabWidget(parent),
-      m_diagramsManager(0)
+      m_diagramsManager(nullptr)
 {
     setTabsClosable(true);
     setMovable(true);
diff --git a/src/libs/modelinglib/qmt/diagram_widgets_ui/stackeddiagramsview.cpp b/src/libs/modelinglib/qmt/diagram_widgets_ui/stackeddiagramsview.cpp
index 15f33390aae..c459463bb0c 100644
--- a/src/libs/modelinglib/qmt/diagram_widgets_ui/stackeddiagramsview.cpp
+++ b/src/libs/modelinglib/qmt/diagram_widgets_ui/stackeddiagramsview.cpp
@@ -38,7 +38,7 @@ namespace qmt {
 
 StackedDiagramsView::StackedDiagramsView(QWidget *parent)
     : QStackedWidget(parent),
-      m_diagramsManager(0)
+      m_diagramsManager(nullptr)
 {
     connect(this, &QStackedWidget::currentChanged, this, &StackedDiagramsView::onCurrentChanged);
 }
diff --git a/src/libs/modelinglib/qmt/model_ui/treemodelmanager.cpp b/src/libs/modelinglib/qmt/model_ui/treemodelmanager.cpp
index 3fabf004033..a90fd546fd7 100644
--- a/src/libs/modelinglib/qmt/model_ui/treemodelmanager.cpp
+++ b/src/libs/modelinglib/qmt/model_ui/treemodelmanager.cpp
@@ -39,8 +39,8 @@ namespace qmt {
 
 TreeModelManager::TreeModelManager(QObject *parent) :
     QObject(parent),
-    m_treeModel(0),
-    m_modelTreeView(0)
+    m_treeModel(nullptr),
+    m_modelTreeView(nullptr)
 {
 }
 
diff --git a/src/libs/modelinglib/qmt/model_widgets_ui/modeltreeview.cpp b/src/libs/modelinglib/qmt/model_widgets_ui/modeltreeview.cpp
index 04906636eb7..f392a59e60c 100644
--- a/src/libs/modelinglib/qmt/model_widgets_ui/modeltreeview.cpp
+++ b/src/libs/modelinglib/qmt/model_widgets_ui/modeltreeview.cpp
@@ -49,8 +49,8 @@ namespace qmt {
 
 ModelTreeView::ModelTreeView(QWidget *parent)
     : QTreeView(parent),
-      m_sortedTreeModel(0),
-      m_elementTasks(0)
+      m_sortedTreeModel(nullptr),
+      m_elementTasks(nullptr)
 {
     setHeaderHidden(true);
     setSortingEnabled(false);
diff --git a/src/libs/modelinglib/qmt/tasks/finddiagramvisitor.cpp b/src/libs/modelinglib/qmt/tasks/finddiagramvisitor.cpp
index 822f517623b..8bbb88f60fa 100644
--- a/src/libs/modelinglib/qmt/tasks/finddiagramvisitor.cpp
+++ b/src/libs/modelinglib/qmt/tasks/finddiagramvisitor.cpp
@@ -32,7 +32,7 @@ namespace qmt {
 
 FindDiagramVisitor::FindDiagramVisitor()
     : MVoidConstVisitor(),
-      m_diagram(0)
+      m_diagram(nullptr)
 {
 }
 
diff --git a/src/libs/modelinglib/qmt/tasks/findrootdiagramvisitor.cpp b/src/libs/modelinglib/qmt/tasks/findrootdiagramvisitor.cpp
index 390b3236921..cf73774f324 100644
--- a/src/libs/modelinglib/qmt/tasks/findrootdiagramvisitor.cpp
+++ b/src/libs/modelinglib/qmt/tasks/findrootdiagramvisitor.cpp
@@ -31,7 +31,7 @@ namespace qmt {
 
 FindRootDiagramVisitor::FindRootDiagramVisitor()
     : MVoidVisitor(),
-      m_diagram(0)
+      m_diagram(nullptr)
 {
 }
 
diff --git a/src/libs/qmleditorwidgets/contextpanewidgetimage.cpp b/src/libs/qmleditorwidgets/contextpanewidgetimage.cpp
index 2334606aad2..e914bdcbc94 100644
--- a/src/libs/qmleditorwidgets/contextpanewidgetimage.cpp
+++ b/src/libs/qmleditorwidgets/contextpanewidgetimage.cpp
@@ -67,7 +67,7 @@ bool WheelFilter::eventFilter(QObject *obj, QEvent *event)
 
 ContextPaneWidgetImage::ContextPaneWidgetImage(QWidget *parent, bool borderImage) :
     QWidget(parent),
-    ui(0), uiBorderImage(0), previewWasVisible(false)
+    ui(nullptr), uiBorderImage(nullptr), previewWasVisible(false)
 {
     LabelFilter *labelFilter = new LabelFilter(this);
 
diff --git a/src/libs/utils/changeset.cpp b/src/libs/utils/changeset.cpp
index feaa0e46cea..1624c7509e6 100644
--- a/src/libs/utils/changeset.cpp
+++ b/src/libs/utils/changeset.cpp
@@ -30,12 +30,12 @@
 namespace Utils {
 
 ChangeSet::ChangeSet()
-    : m_string(0), m_cursor(0), m_error(false)
+    : m_string(nullptr), m_cursor(nullptr), m_error(false)
 {
 }
 
 ChangeSet::ChangeSet(const QList<EditOp> &operations)
-    : m_string(0), m_cursor(0), m_operationList(operations), m_error(false)
+    : m_string(nullptr), m_cursor(nullptr), m_operationList(operations), m_error(false)
 {
 }
 
diff --git a/src/libs/utils/detailswidget.cpp b/src/libs/utils/detailswidget.cpp
index 4faf0cdd58e..754f30b4c52 100644
--- a/src/libs/utils/detailswidget.cpp
+++ b/src/libs/utils/detailswidget.cpp
@@ -94,8 +94,8 @@ DetailsWidgetPrivate::DetailsWidgetPrivate(QWidget *parent) :
         m_summaryLabel(new QLabel(parent)),
         m_summaryCheckBox(new QCheckBox(parent)),
         m_additionalSummaryLabel(new QLabel(parent)),
-        m_toolWidget(0),
-        m_widget(0),
+        m_toolWidget(nullptr),
+        m_widget(nullptr),
         m_state(DetailsWidget::Collapsed),
         m_hovered(false),
         m_useCheckBox(false)
diff --git a/src/libs/utils/mimetypes/mimedatabase.cpp b/src/libs/utils/mimetypes/mimedatabase.cpp
index 11f4547c220..12f37ee4fa6 100644
--- a/src/libs/utils/mimetypes/mimedatabase.cpp
+++ b/src/libs/utils/mimetypes/mimedatabase.cpp
@@ -76,14 +76,14 @@ MimeDatabasePrivate *MimeDatabasePrivate::instance()
 }
 
 MimeDatabasePrivate::MimeDatabasePrivate()
-    : m_provider(0), m_defaultMimeType(QLatin1String("application/octet-stream"))
+    : m_provider(nullptr), m_defaultMimeType(QLatin1String("application/octet-stream"))
 {
 }
 
 MimeDatabasePrivate::~MimeDatabasePrivate()
 {
     delete m_provider;
-    m_provider = 0;
+    m_provider = nullptr;
 }
 
 MimeProviderBase *MimeDatabasePrivate::provider()
diff --git a/src/plugins/coreplugin/dialogs/newdialog.cpp b/src/plugins/coreplugin/dialogs/newdialog.cpp
index 10cd14003a5..731ad2bac9a 100644
--- a/src/plugins/coreplugin/dialogs/newdialog.cpp
+++ b/src/plugins/coreplugin/dialogs/newdialog.cpp
@@ -191,7 +191,7 @@ QWidget *NewDialog::m_currentDialog = nullptr;
 NewDialog::NewDialog(QWidget *parent) :
     QDialog(parent),
     m_ui(new Ui::NewDialog),
-    m_okButton(0)
+    m_okButton(nullptr)
 {
     QTC_CHECK(m_currentDialog == nullptr);
 
diff --git a/src/plugins/coreplugin/locator/directoryfilter.cpp b/src/plugins/coreplugin/locator/directoryfilter.cpp
index 79298fb8749..8a3bc2b3957 100644
--- a/src/plugins/coreplugin/locator/directoryfilter.cpp
+++ b/src/plugins/coreplugin/locator/directoryfilter.cpp
@@ -35,7 +35,7 @@ using namespace Core;
 using namespace Core::Internal;
 
 DirectoryFilter::DirectoryFilter(Id id)
-    : m_dialog(0)
+    : m_dialog(nullptr)
 {
     setId(id);
     setIncludedByDefault(true);
diff --git a/src/plugins/coreplugin/progressmanager/progressview.cpp b/src/plugins/coreplugin/progressmanager/progressview.cpp
index 7abef6df0ea..1369c229825 100644
--- a/src/plugins/coreplugin/progressmanager/progressview.cpp
+++ b/src/plugins/coreplugin/progressmanager/progressview.cpp
@@ -32,7 +32,7 @@ using namespace Core;
 using namespace Core::Internal;
 
 ProgressView::ProgressView(QWidget *parent)
-    : QWidget(parent), m_referenceWidget(0), m_hovered(false)
+    : QWidget(parent), m_referenceWidget(nullptr), m_hovered(false)
 {
     m_layout = new QVBoxLayout;
     setLayout(m_layout);
diff --git a/src/plugins/coreplugin/systemsettings.cpp b/src/plugins/coreplugin/systemsettings.cpp
index ec0df193655..74d097e7282 100644
--- a/src/plugins/coreplugin/systemsettings.cpp
+++ b/src/plugins/coreplugin/systemsettings.cpp
@@ -49,7 +49,7 @@ namespace Core {
 namespace Internal {
 
 SystemSettings::SystemSettings()
-    : m_page(0), m_dialog(0)
+    : m_page(nullptr), m_dialog(0)
 {
     setId(Constants::SETTINGS_ID_SYSTEM);
     setDisplayName(tr("System"));
diff --git a/src/plugins/debugger/sourceagent.cpp b/src/plugins/debugger/sourceagent.cpp
index 1d9042d16ec..d5371adf06a 100644
--- a/src/plugins/debugger/sourceagent.cpp
+++ b/src/plugins/debugger/sourceagent.cpp
@@ -69,7 +69,7 @@ public:
 
 SourceAgentPrivate::SourceAgentPrivate()
   : editor(0)
-  , locationMark(0)
+  , locationMark(nullptr)
   , producer(QLatin1String("remote"))
 {
 }
@@ -91,7 +91,7 @@ SourceAgent::SourceAgent(DebuggerEngine *engine)
 SourceAgent::~SourceAgent()
 {
     delete d;
-    d = 0;
+    d = nullptr;
 }
 
 void SourceAgent::setSourceProducerName(const QString &name)
diff --git a/src/plugins/projectexplorer/processparameters.cpp b/src/plugins/projectexplorer/processparameters.cpp
index bb68745c349..0718724f692 100644
--- a/src/plugins/projectexplorer/processparameters.cpp
+++ b/src/plugins/projectexplorer/processparameters.cpp
@@ -47,7 +47,7 @@
 using namespace ProjectExplorer;
 
 ProcessParameters::ProcessParameters() :
-    m_macroExpander(0),
+    m_macroExpander(nullptr),
     m_commandMissing(false)
 {
 }
diff --git a/src/plugins/texteditor/fontsettingspage.cpp b/src/plugins/texteditor/fontsettingspage.cpp
index d51e139c5fa..18d324a7e8c 100644
--- a/src/plugins/texteditor/fontsettingspage.cpp
+++ b/src/plugins/texteditor/fontsettingspage.cpp
@@ -172,7 +172,7 @@ FontSettingsPagePrivate::FontSettingsPagePrivate(const FormatDescriptions &fd,
     m_displayName(displayName),
     m_settingsGroup(Utils::settingsKey(category)),
     m_descriptions(fd),
-    m_ui(0),
+    m_ui(nullptr),
     m_schemeListModel(new SchemeListModel),
     m_refreshingSchemeList(false)
 {
diff --git a/src/plugins/texteditor/generichighlighter/highlightersettingspage.cpp b/src/plugins/texteditor/generichighlighter/highlightersettingspage.cpp
index 7f4ab0b3ad1..05fd707e1f6 100644
--- a/src/plugins/texteditor/generichighlighter/highlightersettingspage.cpp
+++ b/src/plugins/texteditor/generichighlighter/highlightersettingspage.cpp
@@ -59,7 +59,7 @@ HighlighterSettingsPagePrivate(Core::Id id) :
     m_id(id),
     m_displayName(tr("Generic Highlighter")),
     m_settingsPrefix(QLatin1String("Text")),
-    m_page(0)
+    m_page(nullptr)
 {}
 
 void HighlighterSettingsPage::HighlighterSettingsPagePrivate::ensureInitialized()