Fix some compiler warnings

apps/opencs/model/world/infoselectwrapper.cpp

@@ -520,7 +520,6 @@ std::pair<float, float> CSMWorld::ConstInfoSelectWrapper::getConditionFloatRange
     const float FloatMax = std::numeric_limits<float>::infinity();
     const float FloatMin = -std::numeric_limits<float>::infinity();
     const float Epsilon = std::numeric_limits<float>::epsilon();
-    const std::pair<float, float> InvalidRange(FloatMax, FloatMin);
 
     float value = mConstSelect.mValue.getFloat();
 

apps/wizard/existinginstallationpage.cpp

@@ -31,11 +31,13 @@ void Wizard::ExistingInstallationPage::initializePage()
     // Hide the default item if there are installations to choose from
     installationsList->item(0)->setHidden(!paths.isEmpty());
 
-    foreach (const QString &path, paths) {
-        QListWidgetItem *item = new QListWidgetItem(path);
-
+    foreach (const QString &path, paths)
+    {
         if (installationsList->findItems(path, Qt::MatchExactly).isEmpty())
+        {
+            QListWidgetItem *item = new QListWidgetItem(path);
             installationsList->addItem(item);
+        }
     }
 
     connect(installationsList, SIGNAL(currentTextChanged(QString)),

components/contentselector/model/contentmodel.cpp

@@ -168,7 +168,7 @@ QVariant ContentSelectorModel::ContentModel::data(const QModelIndex &index, int
     case Qt::DisplayRole:
     {
         if (column >=0 && column <=EsmFile::FileProperty_GameFile)
-            return file->fileProperty(static_cast<const EsmFile::FileProperty>(column));
+            return file->fileProperty(static_cast<EsmFile::FileProperty>(column));
 
         return QVariant();
     }

components/myguiplatform/myguirendermanager.cpp

@@ -134,9 +134,9 @@ public:
             {
                 state->bindVertexBufferObject(bufferobject);
 
-                glVertexPointer(3, GL_FLOAT, sizeof(MyGUI::Vertex), (char*)nullptr);
-                glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(MyGUI::Vertex), (char*)nullptr + 12);
-                glTexCoordPointer(2, GL_FLOAT, sizeof(MyGUI::Vertex), (char*)nullptr + 16);
+                glVertexPointer(3, GL_FLOAT, sizeof(MyGUI::Vertex), static_cast<char*>(0));
+                glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(MyGUI::Vertex), static_cast<char*>(0) + 12);
+                glTexCoordPointer(2, GL_FLOAT, sizeof(MyGUI::Vertex), static_cast<char*>(0) + 16);
             }
             else
             {