comparison widgets/LayerTree.cpp @ 1408:c8a6fd3f9dff fix-static-analysis

Use nullptr throughout

 QModelIndex
 ModelMetadataModel::index(int row, int column, const QModelIndex &parent) const
 {
     if (!parent.isValid()) {
         if (row >= (int)m_models.size()) return QModelIndex();
-        return createIndex(row, column, (void *)0);
+        return createIndex(row, column, (void *)nullptr);
     }
 
     return QModelIndex();
 }