6 files changed, 10 insertions, 10 deletions
diff --git a/src/widgets/widgets/qabstractscrollarea.cpp b/src/widgets/widgets/qabstractscrollarea.cpp
index 320b3bf7ef..257cffda62 100644
--- a/src/widgets/widgets/qabstractscrollarea.cpp
+++ b/src/widgets/widgets/qabstractscrollarea.cpp
@@ -512,8 +512,8 @@ QAbstractScrollArea::~QAbstractScrollArea()
   Sets the viewport to be the given \a widget.
   The QAbstractScrollArea will take ownership of the given \a widget.
 
-  If \a widget is 0, QAbstractScrollArea will assign a new QWidget instance
-  for the viewport.
+  If \a widget is \nullptr, QAbstractScrollArea will assign a new QWidget
+  instance for the viewport.
 
   \sa viewport()
 */
@@ -720,7 +720,7 @@ QWidget *QAbstractScrollArea::cornerWidget() const
     You will probably also want to set at least one of the scroll bar
     modes to \c AlwaysOn.
 
-    Passing 0 shows no widget in the corner.
+    Passing \nullptr shows no widget in the corner.
 
     Any previous corner widget is hidden.
 
diff --git a/src/widgets/widgets/qcombobox.cpp b/src/widgets/widgets/qcombobox.cpp
index 9826cabe50..aa3788c404 100644
--- a/src/widgets/widgets/qcombobox.cpp
+++ b/src/widgets/widgets/qcombobox.cpp
@@ -2044,7 +2044,7 @@ const QValidator *QComboBox::validator() const
     \since 4.2
 
     Sets the \a completer to use instead of the current completer.
-    If \a completer is 0, auto completion is disabled.
+    If \a completer is \nullptr, auto completion is disabled.
 
     By default, for an editable combo box, a QCompleter that
     performs case insensitive inline completion is automatically created.
diff --git a/src/widgets/widgets/qdialogbuttonbox.cpp b/src/widgets/widgets/qdialogbuttonbox.cpp
index 2e12320bc3..28c4f59d0d 100644
--- a/src/widgets/widgets/qdialogbuttonbox.cpp
+++ b/src/widgets/widgets/qdialogbuttonbox.cpp
@@ -699,7 +699,7 @@ QList<QAbstractButton *> QDialogButtonBox::buttons() const
 
 /*!
     Returns the button role for the specified \a button. This function returns
-    \l InvalidRole if \a button is 0 or has not been added to the button box.
+    \l InvalidRole if \a button is \nullptr or has not been added to the button box.
 
     \sa buttons(), addButton()
 */
diff --git a/src/widgets/widgets/qdockwidget.cpp b/src/widgets/widgets/qdockwidget.cpp
index 299e5da8d3..1d358c493e 100644
--- a/src/widgets/widgets/qdockwidget.cpp
+++ b/src/widgets/widgets/qdockwidget.cpp
@@ -1674,8 +1674,8 @@ QAction * QDockWidget::toggleViewAction() const
     \since 4.3
 
     Sets an arbitrary \a widget as the dock widget's title bar. If \a widget
-    is 0, any custom title bar widget previously set on the dock widget is
-    removed, but not deleted, and the default title bar will be used
+    is \nullptr, any custom title bar widget previously set on the dock widget
+    is removed, but not deleted, and the default title bar will be used
     instead.
 
     If a title bar widget is set, QDockWidget will not use native window
diff --git a/src/widgets/widgets/qmdiarea.cpp b/src/widgets/widgets/qmdiarea.cpp
index 3272ac440b..da6eb47372 100644
--- a/src/widgets/widgets/qmdiarea.cpp
+++ b/src/widgets/widgets/qmdiarea.cpp
@@ -103,8 +103,8 @@
     \fn void QMdiArea::subWindowActivated(QMdiSubWindow *window)
 
     QMdiArea emits this signal after \a window has been activated. When \a
-    window is 0, QMdiArea has just deactivated its last active window, and
-    there are no active windows on the workspace.
+    window is \nullptr, QMdiArea has just deactivated its last active window,
+    and there are no active windows on the workspace.
 
     \sa QMdiArea::activeSubWindow()
 */
diff --git a/src/widgets/widgets/qtabwidget.cpp b/src/widgets/widgets/qtabwidget.cpp
index f0bfe67e3a..a19dacda52 100644
--- a/src/widgets/widgets/qtabwidget.cpp
+++ b/src/widgets/widgets/qtabwidget.cpp
@@ -612,7 +612,7 @@ void QTabWidget::setTabVisible(int index, bool visible)
 
   Only the horizontal element of the \a corner will be used.
 
-  Passing 0 shows no widget in the corner.
+  Passing \nullptr shows no widget in the corner.
 
   Any previously set corner widget is hidden.