Tidy nullptr usage

Move away from using 0 as pointer literal.

Done using clang-tidy. This is not complete as
run-clang-tidy can't handle all of qtbase in one go.

Change-Id: I1076a21f32aac0dab078af6f175f7508145eece0
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

1 files changed, 19 insertions, 19 deletions

diff --git a/src/widgets/dialogs/qwizard.cpp b/src/widgets/dialogs/qwizard.cpp
index 7c4a473976..a4789f40b1 100644
--- a/src/widgets/dialogs/qwizard.cpp
+++ b/src/widgets/dialogs/qwizard.cpp
@@ -115,7 +115,7 @@ static QWidget *iWantTheFocus(QWidget *ancestor)
                 return candidate;
         }
     }
-    return 0;
+    return nullptr;
 }
 
 static bool objectInheritsXAndXIsCloserThanY(const QObject *object, const QByteArray &classX,
@@ -165,7 +165,7 @@ static const char *changed_signal(int which)
     };
     Q_STATIC_ASSERT(7 == NFallbackDefaultProperties);
     Q_UNREACHABLE();
-    return 0;
+    return nullptr;
 }
 
 class QWizardDefaultProperty
@@ -286,9 +286,9 @@ class QWizardHeader : public QWidget
 public:
     enum RulerType { Ruler };
 
-    inline QWizardHeader(RulerType /* ruler */, QWidget *parent = 0)
+    inline QWizardHeader(RulerType /* ruler */, QWidget *parent = nullptr)
         : QWidget(parent) { setFixedHeight(2); }
-    QWizardHeader(QWidget *parent = 0);
+    QWizardHeader(QWidget *parent = nullptr);
 
     void setup(const QWizardLayoutInfo &info, const QString &title,
                const QString &subTitle, const QPixmap &logo, const QPixmap &banner,
@@ -438,7 +438,7 @@ void QWizardHeader::paintEvent(QPaintEvent * /* event */)
 class QWizardRuler : public QWizardHeader
 {
 public:
-    inline QWizardRuler(QWidget *parent = 0)
+    inline QWizardRuler(QWidget *parent = nullptr)
         : QWizardHeader(Ruler, parent) {}
 };
 
@@ -684,7 +684,7 @@ void QWizardPrivate::init()
     std::fill(btns, btns + QWizard::NButtons, nullptr);
 
     antiFlickerWidget = new QWizardAntiFlickerWidget(q, this);
-    wizStyle = QWizard::WizardStyle(q->style()->styleHint(QStyle::SH_WizardStyle, 0, q));
+    wizStyle = QWizard::WizardStyle(q->style()->styleHint(QStyle::SH_WizardStyle, nullptr, q));
     if (wizStyle == QWizard::MacStyle) {
         opts = (QWizard::NoDefaultButton | QWizard::NoCancelButton);
     } else if (wizStyle == QWizard::ModernStyle) {
@@ -836,7 +836,7 @@ void QWizardPrivate::switchToPage(int newId, Direction direction)
         newPage && newPage->isCommitPage() ? QWizard::CommitButton : QWizard::NextButton;
     QAbstractButton *nextOrFinishButton =
         btns[canContinue ? nextOrCommit : QWizard::FinishButton];
-    QWidget *candidate = 0;
+    QWidget *candidate = nullptr;
 
     /*
         If there is no default button and the Next or Finish button
@@ -887,7 +887,7 @@ static const char * buttonSlots(QWizard::WizardButton which)
     case QWizard::NoButton:
         Q_UNREACHABLE();
     };
-    return 0;
+    return nullptr;
 };
 
 QWizardLayoutInfo QWizardPrivate::layoutInfoForCurrentPage()
@@ -898,14 +898,14 @@ QWizardLayoutInfo QWizardPrivate::layoutInfoForCurrentPage()
     QWizardLayoutInfo info;
 
     const int layoutHorizontalSpacing = style->pixelMetric(QStyle::PM_LayoutHorizontalSpacing);
-    info.topLevelMarginLeft = style->pixelMetric(QStyle::PM_LayoutLeftMargin, 0, q);
-    info.topLevelMarginRight = style->pixelMetric(QStyle::PM_LayoutRightMargin, 0, q);
-    info.topLevelMarginTop = style->pixelMetric(QStyle::PM_LayoutTopMargin, 0, q);
-    info.topLevelMarginBottom = style->pixelMetric(QStyle::PM_LayoutBottomMargin, 0, q);
-    info.childMarginLeft = style->pixelMetric(QStyle::PM_LayoutLeftMargin, 0, titleLabel);
-    info.childMarginRight = style->pixelMetric(QStyle::PM_LayoutRightMargin, 0, titleLabel);
-    info.childMarginTop = style->pixelMetric(QStyle::PM_LayoutTopMargin, 0, titleLabel);
-    info.childMarginBottom = style->pixelMetric(QStyle::PM_LayoutBottomMargin, 0, titleLabel);
+    info.topLevelMarginLeft = style->pixelMetric(QStyle::PM_LayoutLeftMargin, nullptr, q);
+    info.topLevelMarginRight = style->pixelMetric(QStyle::PM_LayoutRightMargin, nullptr, q);
+    info.topLevelMarginTop = style->pixelMetric(QStyle::PM_LayoutTopMargin, nullptr, q);
+    info.topLevelMarginBottom = style->pixelMetric(QStyle::PM_LayoutBottomMargin, nullptr, q);
+    info.childMarginLeft = style->pixelMetric(QStyle::PM_LayoutLeftMargin, nullptr, titleLabel);
+    info.childMarginRight = style->pixelMetric(QStyle::PM_LayoutRightMargin, nullptr, titleLabel);
+    info.childMarginTop = style->pixelMetric(QStyle::PM_LayoutTopMargin, nullptr, titleLabel);
+    info.childMarginBottom = style->pixelMetric(QStyle::PM_LayoutBottomMargin, nullptr, titleLabel);
     info.hspacing = (layoutHorizontalSpacing == -1)
         ? style->layoutSpacing(QSizePolicy::DefaultType, QSizePolicy::DefaultType, Qt::Horizontal)
         : layoutHorizontalSpacing;
@@ -959,7 +959,7 @@ void QWizardPrivate::recreateLayout(const QWizardLayoutInfo &info)
     for (int i = mainLayout->count() - 1; i >= 0; --i) {
         QLayoutItem *item = mainLayout->takeAt(i);
         if (item->layout()) {
-            item->layout()->setParent(0);
+            item->layout()->setParent(nullptr);
         } else {
             delete item;
         }
@@ -2281,7 +2281,7 @@ void QWizard::removePage(int id)
 {
     Q_D(QWizard);
 
-    QWizardPage *removedPage = 0;
+    QWizardPage *removedPage = nullptr;
 
     // update startItem accordingly
     if (d->pageMap.count() > 0) { // only if we have any pages
@@ -2792,7 +2792,7 @@ QAbstractButton *QWizard::button(WizardButton which) const
         return d->vistaHelper->backButton();
 #endif
     if (!d->ensureButton(which))
-        return 0;
+        return nullptr;
     return d->btns[which];
 }