Fix code style and errors

3rdparty/taglib/asf/asffile.cpp

@@ -113,7 +113,7 @@ class ASF::File::FilePrivate::UnknownObject : public ASF::File::FilePrivate::Bas
 {
   ByteVector myGuid;
 public:
-  UnknownObject(const ByteVector &guid);
+  explicit UnknownObject(const ByteVector &guid);
   ByteVector guid() const;
 };
 

3rdparty/taglib/dsf/dsffile.cpp

@@ -40,8 +40,10 @@ class DSF::File::FilePrivate
 {
 public:
   FilePrivate() :
-  properties(0),
-  tag(0)
+  fileSize(0),
+  metadataOffset(0),
+  properties(nullptr),
+  tag(nullptr)
   {
   }
 

3rdparty/taglib/flac/flacfile.cpp

@@ -60,7 +60,7 @@ namespace
 class FLAC::File::FilePrivate
 {
 public:
-  FilePrivate(const ID3v2::FrameFactory *frameFactory = ID3v2::FrameFactory::instance()) :
+  explicit FilePrivate(const ID3v2::FrameFactory *frameFactory = ID3v2::FrameFactory::instance()) :
     ID3v2FrameFactory(frameFactory),
     ID3v2Location(-1),
     ID3v2OriginalSize(0),

3rdparty/taglib/it/itfile.cpp

@@ -36,7 +36,7 @@ using namespace IT;
 class IT::File::FilePrivate
 {
 public:
-  FilePrivate(AudioProperties::ReadStyle propertiesStyle)
+  explicit FilePrivate(AudioProperties::ReadStyle propertiesStyle)
     : tag(), properties(propertiesStyle)
   {
   }

3rdparty/taglib/mod/modfile.cpp

@@ -36,7 +36,7 @@ using namespace Mod;
 class Mod::File::FilePrivate
 {
 public:
-  FilePrivate(AudioProperties::ReadStyle propertiesStyle)
+  explicit FilePrivate(AudioProperties::ReadStyle propertiesStyle)
     : properties(propertiesStyle)
   {
   }

3rdparty/taglib/mpeg/mpegfile.cpp

@@ -47,7 +47,7 @@ namespace
 class MPEG::File::FilePrivate
 {
 public:
-  FilePrivate(const ID3v2::FrameFactory *frameFactory = ID3v2::FrameFactory::instance()) :
+  explicit FilePrivate(const ID3v2::FrameFactory *frameFactory = ID3v2::FrameFactory::instance()) :
     ID3v2FrameFactory(frameFactory),
     ID3v2Location(-1),
     ID3v2OriginalSize(0),
@@ -87,7 +87,7 @@ namespace
   class AdapterFile : public TagLib::File
   {
   public:
-    AdapterFile(IOStream *stream) : File(stream) {}
+    explicit AdapterFile(IOStream *stream) : File(stream) {}
 
     Tag *tag() const { return 0; }
     AudioProperties *audioProperties() const { return 0; }

3rdparty/taglib/ogg/oggfile.cpp

@@ -50,6 +50,7 @@ class Ogg::File::FilePrivate
 {
 public:
   FilePrivate() :
+    streamSerialNumber(0),
     firstPageHeader(0),
     lastPageHeader(0)
   {

3rdparty/taglib/riff/rifffile.cpp

@@ -46,7 +46,7 @@ struct Chunk
 class RIFF::File::FilePrivate
 {
 public:
-  FilePrivate(Endianness endianness) :
+  explicit FilePrivate(Endianness endianness) :
     endianness(endianness),
     size(0),
     sizeOffset(0) {}

3rdparty/taglib/s3m/s3mfile.cpp

@@ -38,7 +38,7 @@ using namespace S3M;
 class S3M::File::FilePrivate
 {
 public:
-  FilePrivate(AudioProperties::ReadStyle propertiesStyle)
+  explicit FilePrivate(AudioProperties::ReadStyle propertiesStyle)
     : properties(propertiesStyle)
   {
   }

3rdparty/taglib/tag.cpp

@@ -34,7 +34,8 @@ class Tag::TagPrivate
 
 };
 
-Tag::Tag()
+Tag::Tag() :
+d(nullptr)
 {
 
 }
@@ -58,19 +59,19 @@ bool Tag::isEmpty() const
 PropertyMap Tag::properties() const
 {
   PropertyMap map;
-  if(!(title().isEmpty()))
+  if (!(title().isEmpty()))
     map["TITLE"].append(title());
-  if(!(artist().isEmpty()))
+  if (!(artist().isEmpty()))
     map["ARTIST"].append(artist());
-  if(!(album().isEmpty()))
+  if (!(album().isEmpty()))
     map["ALBUM"].append(album());
-  if(!(comment().isEmpty()))
+  if (!(comment().isEmpty()))
     map["COMMENT"].append(comment());
-  if(!(genre().isEmpty()))
+  if (!(genre().isEmpty()))
     map["GENRE"].append(genre());
-  if(!(year() == 0))
+  if (!(year() == 0))
     map["DATE"].append(String::number(year()));
-  if(!(track() == 0))
+  if (!(track() == 0))
     map["TRACKNUMBER"].append(String::number(track()));
   return map;
 }
@@ -85,40 +86,40 @@ PropertyMap Tag::setProperties(const PropertyMap &origProps)
   properties.removeEmpty();
   StringList oneValueSet;
   // can this be simplified by using some preprocessor defines / function pointers?
-  if(properties.contains("TITLE")) {
+  if (properties.contains("TITLE")) {
     setTitle(properties["TITLE"].front());
     oneValueSet.append("TITLE");
   } else
     setTitle(String());
 
-  if(properties.contains("ARTIST")) {
+  if (properties.contains("ARTIST")) {
     setArtist(properties["ARTIST"].front());
     oneValueSet.append("ARTIST");
   } else
     setArtist(String());
 
-  if(properties.contains("ALBUM")) {
+  if (properties.contains("ALBUM")) {
     setAlbum(properties["ALBUM"].front());
     oneValueSet.append("ALBUM");
   } else
     setAlbum(String());
 
-  if(properties.contains("COMMENT")) {
+  if (properties.contains("COMMENT")) {
     setComment(properties["COMMENT"].front());
     oneValueSet.append("COMMENT");
   } else
     setComment(String());
 
-  if(properties.contains("GENRE")) {
+  if (properties.contains("GENRE")) {
     setGenre(properties["GENRE"].front());
     oneValueSet.append("GENRE");
   } else
     setGenre(String());
 
-  if(properties.contains("DATE")) {
+  if (properties.contains("DATE")) {
     bool ok;
     int date = properties["DATE"].front().toInt(&ok);
-    if(ok) {
+    if (ok) {
       setYear(date);
       oneValueSet.append("DATE");
     } else
@@ -127,10 +128,10 @@ PropertyMap Tag::setProperties(const PropertyMap &origProps)
   else
     setYear(0);
 
-  if(properties.contains("TRACKNUMBER")) {
+  if (properties.contains("TRACKNUMBER")) {
     bool ok;
     int track = properties["TRACKNUMBER"].front().toInt(&ok);
-    if(ok) {
+    if (ok) {
       setTrack(track);
       oneValueSet.append("TRACKNUMBER");
     } else
@@ -142,7 +143,7 @@ PropertyMap Tag::setProperties(const PropertyMap &origProps)
   // for each tag that has been set above, remove the first entry in the corresponding
   // value list. The others will be returned as unsupported by this format.
   for(StringList::ConstIterator it = oneValueSet.begin(); it != oneValueSet.end(); ++it) {
-    if(properties[*it].size() == 1)
+    if (properties[*it].size() == 1)
       properties.erase(*it);
     else
       properties[*it].erase( properties[*it].begin() );
@@ -152,7 +153,7 @@ PropertyMap Tag::setProperties(const PropertyMap &origProps)
 
 void Tag::duplicate(const Tag *source, Tag *target, bool overwrite) // static
 {
-  if(overwrite) {
+  if (overwrite) {
     target->setTitle(source->title());
     target->setArtist(source->artist());
     target->setAlbum(source->album());
@@ -162,19 +163,19 @@ void Tag::duplicate(const Tag *source, Tag *target, bool overwrite) // static
     target->setTrack(source->track());
   }
   else {
-    if(target->title().isEmpty())
+    if (target->title().isEmpty())
       target->setTitle(source->title());
-    if(target->artist().isEmpty())
+    if (target->artist().isEmpty())
       target->setArtist(source->artist());
-    if(target->album().isEmpty())
+    if (target->album().isEmpty())
       target->setAlbum(source->album());
-    if(target->comment().isEmpty())
+    if (target->comment().isEmpty())
       target->setComment(source->comment());
-    if(target->genre().isEmpty())
+    if (target->genre().isEmpty())
       target->setGenre(source->genre());
-    if(target->year() <= 0)
+    if (target->year() == 0)
       target->setYear(source->year());
-    if(target->track() <= 0)
+    if (target->track() == 0)
       target->setTrack(source->track());
   }
 }

3rdparty/taglib/toolkit/tbytevectorlist.cpp

@@ -70,7 +70,9 @@ ByteVectorList ByteVectorList::split(const ByteVector &v, const ByteVector &patt
 // public members
 ////////////////////////////////////////////////////////////////////////////////
 
-ByteVectorList::ByteVectorList() : List<ByteVector>()
+ByteVectorList::ByteVectorList() :
+  List<ByteVector>(),
+  d(nullptr)
 {
 
 }

3rdparty/taglib/toolkit/tbytevectorstream.cpp

@@ -37,7 +37,7 @@ using namespace TagLib;
 class ByteVectorStream::ByteVectorStreamPrivate
 {
 public:
-  ByteVectorStreamPrivate(const ByteVector &data);
+  explicit ByteVectorStreamPrivate(const ByteVector &data);
 
   ByteVector data;
   long position;

3rdparty/taglib/toolkit/tfile.cpp

@@ -91,7 +91,7 @@ public:
 // public members
 ////////////////////////////////////////////////////////////////////////////////
 
-File::File(FileName fileName) :
+File::File(const FileName fileName) :
   d(new FilePrivate(new FileStream(fileName), true))
 {
 }

3rdparty/taglib/toolkit/tfilestream.cpp

@@ -90,7 +90,7 @@ namespace
 
   struct FileNameHandle : public std::string
   {
-    FileNameHandle(FileName name) : std::string(name) {}
+    explicit FileNameHandle(FileName name) : std::string(name) {}
     operator FileName () const { return c_str(); }
   };
 
@@ -129,7 +129,7 @@ namespace
 class FileStream::FileStreamPrivate
 {
 public:
-  FileStreamPrivate(const FileName &fileName)
+  explicit FileStreamPrivate(const FileName &fileName)
     : file(InvalidFileHandle)
     , name(fileName)
     , readOnly(true)

3rdparty/taglib/toolkit/tstringlist.cpp

@@ -55,17 +55,23 @@ StringList StringList::split(const String &s, const String &pattern)
 // public members
 ////////////////////////////////////////////////////////////////////////////////
 
-StringList::StringList() : List<String>()
+StringList::StringList() :
+  List<String>(),
+  d(nullptr)
 {
 
 }
 
-StringList::StringList(const StringList &l) : List<String>(l)
+StringList::StringList(const StringList &l) :
+  List<String>(l),
+  d(nullptr)
 {
 
 }
 
-StringList::StringList(const String &s) : List<String>()
+StringList::StringList(const String &s) :
+  List<String>(),
+  d(nullptr)
 {
   append(s);
 }

3rdparty/taglib/trueaudio/trueaudiofile.cpp

@@ -50,7 +50,7 @@ namespace
 class TrueAudio::File::FilePrivate
 {
 public:
-  FilePrivate(const ID3v2::FrameFactory *frameFactory = ID3v2::FrameFactory::instance()) :
+  explicit FilePrivate(const ID3v2::FrameFactory *frameFactory = ID3v2::FrameFactory::instance()) :
     ID3v2FrameFactory(frameFactory),
     ID3v2Location(-1),
     ID3v2OriginalSize(0),

3rdparty/taglib/trueaudio/trueaudioproperties.cpp

@@ -160,7 +160,6 @@ void TrueAudio::Properties::read(const ByteVector &data, long streamLength)
     pos += 4;
 
     d->sampleFrames = data.toUInt(pos, false);
-    pos += 4;
 
     if(d->sampleFrames > 0 && d->sampleRate > 0) {
       const double length = d->sampleFrames * 1000.0 / d->sampleRate;

3rdparty/taglib/xm/xmfile.cpp

@@ -86,7 +86,7 @@ public:
 class SkipReader : public Reader
 {
 public:
-  SkipReader(unsigned int size) : m_size(size)
+  explicit SkipReader(unsigned int size) : m_size(size)
   {
   }
 
@@ -110,7 +110,7 @@ template<typename T>
 class ValueReader : public Reader
 {
 public:
-  ValueReader(T &value) : value(value)
+  explicit ValueReader(T &value) : value(value)
   {
   }
 
@@ -151,7 +151,7 @@ private:
 class ByteReader : public ValueReader<unsigned char>
 {
 public:
-  ByteReader(unsigned char &byte) : ValueReader<unsigned char>(byte) {}
+  explicit ByteReader(unsigned char &byte) : ValueReader<unsigned char>(byte) {}
 
   unsigned int read(TagLib::File &file, unsigned int limit)
   {
@@ -346,7 +346,7 @@ private:
 class XM::File::FilePrivate
 {
 public:
-  FilePrivate(AudioProperties::ReadStyle propertiesStyle)
+  explicit FilePrivate(AudioProperties::ReadStyle propertiesStyle)
     : tag(), properties(propertiesStyle)
   {
   }

src/analyzer/blockanalyzer.cpp

@@ -56,7 +56,9 @@ BlockAnalyzer::BlockAnalyzer(QWidget *parent)
       store_(1 << 8, 0),
       fade_bars_(kFadeSize),
       fade_pos_(1 << 8, 50),
-      fade_intensity_(1 << 8, 32) {
+      fade_intensity_(1 << 8, 32),
+      step_(0)
+      {
 
   setMinimumSize(kMinColumns * (kWidth + 1) - 1, kMinRows * (kHeight + 1) - 1);  //-1 is padding, no drawing takes place there
   setMaximumWidth(kMaxColumns * (kWidth + 1) - 1);

src/collection/collection.cpp

@@ -116,7 +116,7 @@ void SCollection::Stopped() {
   CurrentSongChanged(Song());
 }
 
-void SCollection::CurrentSongChanged(const Song &song) {
+void SCollection::CurrentSongChanged(const Song &song) {  // FIXME
 
   TagReaderReply *reply = nullptr;
 

src/collection/collectionbackend.cpp

@@ -49,9 +49,9 @@
 
 const char *CollectionBackend::kSettingsGroup = "Collection";
 
-CollectionBackend::CollectionBackend(QObject *parent)
-    : CollectionBackendInterface(parent)
-      {}
+CollectionBackend::CollectionBackend(QObject *parent) :
+    CollectionBackendInterface(parent),
+    db_(nullptr) {}
 
 void CollectionBackend::Init(Database *db, const QString &songs_table, const QString &dirs_table, const QString &subdirs_table, const QString &fts_table) {
   db_ = db;
@@ -1095,7 +1095,6 @@ void CollectionBackend::IncrementPlayCount(int id) {
 void CollectionBackend::IncrementSkipCount(int id, float progress) {
 
   if (id == -1) return;
-  progress = qBound(0.0f, progress, 1.0f);
 
   QMutexLocker l(db_->Mutex());
   QSqlDatabase db(db_->Connect());

src/collection/collectionview.cpp

@@ -161,13 +161,10 @@ bool CollectionItemDelegate::helpEvent(QHelpEvent *event, QAbstractItemView *vie
 
   switch (event->type()) {
     case QEvent::ToolTip: {
-      QRect displayed_text;
-      QSize real_text;
-      bool is_elided = false;
 
-      real_text = sizeHint(option, index);
-      displayed_text = view->visualRect(index);
-      is_elided = displayed_text.width() < real_text.width();
+      QSize real_text = sizeHint(option, index);
+      QRect displayed_text = view->visualRect(index);
+      bool is_elided = displayed_text.width() < real_text.width();
 
       if (is_elided) {
         QToolTip::showText(he->globalPos(), text, view);
@@ -361,7 +358,7 @@ void CollectionView::SetFilter(CollectionFilterWidget *filter) { filter_ = filte
 
 void CollectionView::TotalSongCountUpdated(int count) {
 
-  bool old = total_song_count_;
+  int old = total_song_count_;
   total_song_count_ = count;
   if (old != total_song_count_) update();
 
@@ -376,7 +373,7 @@ void CollectionView::TotalSongCountUpdated(int count) {
 
 void CollectionView::TotalArtistCountUpdated(int count) {
 
-  bool old = total_artist_count_;
+  int old = total_artist_count_;
   total_artist_count_ = count;
   if (old != total_artist_count_) update();
 
@@ -391,7 +388,7 @@ void CollectionView::TotalArtistCountUpdated(int count) {
 
 void CollectionView::TotalAlbumCountUpdated(int count) {
 
-  bool old = total_album_count_;
+  int old = total_album_count_;
   total_album_count_ = count;
   if (old != total_album_count_) update();
 

src/context/contextalbumsview.cpp

@@ -167,13 +167,10 @@ bool ContextItemDelegate::helpEvent(QHelpEvent *event, QAbstractItemView *view,
 
   switch (event->type()) {
     case QEvent::ToolTip: {
-      QRect displayed_text;
-      QSize real_text;
-      bool is_elided = false;
 
-      real_text = sizeHint(option, index);
-      displayed_text = view->visualRect(index);
-      is_elided = displayed_text.width() < real_text.width();
+      QSize real_text = sizeHint(option, index);
+      QRect displayed_text = view->visualRect(index);
+      bool is_elided = displayed_text.width() < real_text.width();
 
       if (is_elided) {
         QToolTip::showText(he->globalPos(), text, view);

src/core/application.cpp

@@ -72,7 +72,7 @@ bool Application::kIsPortable = false;
 
 class ApplicationImpl {
  public:
-  ApplicationImpl(Application *app) :
+  explicit ApplicationImpl(Application *app) :
        tag_reader_client_([=]() {
           TagReaderClient *client = new TagReaderClient(app);
           app->MoveToNewThread(client);

src/core/commandlineoptions.cpp

@@ -312,8 +312,8 @@ bool CommandlineOptions::is_empty() const {
          seek_to_ == -1 &&
          seek_by_ == 0 &&
          play_track_at_ == -1 &&
-         show_osd_ == false &&
-         toggle_pretty_osd_ == false &&
+         !show_osd_ &&
+         !toggle_pretty_osd_ &&
          urls_.isEmpty();
 }
 

src/core/mainwindow.cpp

@@ -1321,7 +1321,7 @@ void MainWindow::AddToPlaylist(QAction *action) {
   }
 
   SongList songs;
-  for (PlaylistItemPtr item : items) {
+  for (const PlaylistItemPtr &item : items) {
     songs << item->Metadata();
   }
 
@@ -1587,7 +1587,7 @@ void MainWindow::EditTracks() {
 
 void MainWindow::EditTagDialogAccepted() {
 
-  for (PlaylistItemPtr item : edit_tag_dialog_->playlist_items()) {
+  for (const PlaylistItemPtr &item : edit_tag_dialog_->playlist_items()) {
     item->Reload();
   }
 
@@ -2256,7 +2256,7 @@ void MainWindow::AutoCompleteTags() {
 
 void MainWindow::AutoCompleteTagsAccepted() {
 
-  for (PlaylistItemPtr item : autocomplete_tag_items_) {
+  for (const PlaylistItemPtr &item : autocomplete_tag_items_) {
     item->Reload();
   }
 

src/core/player.cpp

@@ -81,6 +81,8 @@ const char *Player::kSettingsGroup = "Player";
 Player::Player(Application *app, QObject *parent)
     : PlayerInterface(parent),
     app_(app),
+    analyzer_(nullptr),
+    equalizer_(nullptr),
     stream_change_type_(Engine::First),
     last_state_(Engine::Empty),
     nb_errors_received_(0),

src/core/songloader.cpp

@@ -257,7 +257,7 @@ void SongLoader::LoadLocalAsync(const QString &filename) {
     cue.open(QIODevice::ReadOnly);
 
     SongList song_list = cue_parser_->Load(&cue, matching_cue, QDir(filename.section('/', 0, -2)));
-    for (Song song: song_list){
+    for (const Song &song : song_list) {
       if (song.is_valid()) songs_ << song;
     }
     return;

src/core/utilities.cpp

@@ -263,7 +263,7 @@ bool RemoveRecursive(const QString &path) {
       return false;
   }
 
-  if (!dir.rmdir(path)) return false;
+  return dir.rmdir(path);
 
   return true;
 

src/covermanager/albumcoverchoicecontroller.cpp

@@ -422,10 +422,7 @@ bool AlbumCoverChoiceController::CanAcceptDrag(const QDragEnterEvent *e) {
     const QString suffix = QFileInfo(url.toLocalFile()).suffix().toLower();
     if (IsKnownImageExtension(suffix)) return true;
   }
-  if (e->mimeData()->hasImage()) {
-    return true;
-  }
-  return false;
+  return e->mimeData()->hasImage();
 
 }
 

src/covermanager/coverexportrunnable.cpp

@@ -31,8 +31,9 @@
 #include "core/tagreaderclient.h"
 #include "coverexportrunnable.h"
 
-CoverExportRunnable::CoverExportRunnable(const AlbumCoverExport::DialogResult &dialog_result, const Song &song)
-    : dialog_result_(dialog_result), song_(song) {}
+CoverExportRunnable::CoverExportRunnable(const AlbumCoverExport::DialogResult &dialog_result, const Song &song) :
+    dialog_result_(dialog_result),
+    song_(song) {}
 
 void CoverExportRunnable::run() {
 

src/covermanager/coverexportrunnable.h

@@ -55,7 +55,7 @@ signals:
 
   AlbumCoverExport::DialogResult dialog_result_;
   Song song_;
-  AlbumCoverExporter* album_cover_exporter_;
+
 };
 
 #endif  // COVEREXPORTRUNNABLE_H

src/device/cddasongloader.cpp

@@ -197,7 +197,7 @@ void CddaSongLoader::AudioCDTagsLoaded(const QString &artist, const QString &alb
   MusicBrainzClient *musicbrainz_client = qobject_cast<MusicBrainzClient*>(sender());
   musicbrainz_client->deleteLater();
   SongList songs;
-  if (results.size() == 0) return;
+  if (results.empty()) return;
   int track_number = 1;
   for (const MusicBrainzClient::Result &ret : results) {
     Song song;

src/device/devicedatabasebackend.cpp

@@ -36,8 +36,10 @@
 
 const int DeviceDatabaseBackend::kDeviceSchemaVersion = 0;
 
-DeviceDatabaseBackend::DeviceDatabaseBackend(QObject *parent)
-    : QObject(parent) {}
+DeviceDatabaseBackend::DeviceDatabaseBackend(QObject *parent) :
+    QObject(parent),
+    db_(nullptr)
+    {}
 
 void DeviceDatabaseBackend::Init(Database* db) { db_ = db; }
 

src/device/devicelister.cpp

@@ -37,7 +37,9 @@
 
 #include "core/logging.h"
 
-DeviceLister::DeviceLister() : thread_(nullptr) {}
+DeviceLister::DeviceLister() :
+  thread_(nullptr),
+  next_mount_request_id_(0) {}
 
 DeviceLister::~DeviceLister() {
 

src/device/devicemanager.cpp

@@ -686,7 +686,7 @@ void DeviceManager::Forget(QModelIndex idx) {
   backend_->RemoveDevice(info->database_id_);
   info->database_id_ = -1;
 
-  if (!info->BestBackend() || (info->BestBackend() && !info->BestBackend()->lister_)) {  // It's not attached any more so remove it from the list
+  if (!info->BestBackend() || !info->BestBackend()->lister_) {  // It's not attached any more so remove it from the list
     beginRemoveRows(ItemToIndex(root_), idx.row(), idx.row());
     devices_.removeAll(info);
     root_->Delete(info->row);

src/device/mtploader.cpp

@@ -36,7 +36,8 @@ MtpLoader::MtpLoader(const QUrl &url, TaskManager *task_manager, CollectionBacke
       device_(device),
       url_(url),
       task_manager_(task_manager),
-      backend_(backend) {
+      backend_(backend),
+      connection_(nullptr) {
   original_thread_ = thread();
 }
 

src/engine/alsadevicefinder.cpp

@@ -41,7 +41,6 @@ AlsaDeviceFinder::AlsaDeviceFinder()
 QList<DeviceFinder::Device> AlsaDeviceFinder::ListDevices() {
 
   QList<Device> ret;
-  int result = -1;
 
   snd_pcm_stream_name(SND_PCM_STREAM_PLAYBACK);
 
@@ -50,7 +49,7 @@ QList<DeviceFinder::Device> AlsaDeviceFinder::ListDevices() {
   snd_ctl_card_info_alloca(&cardinfo);
   while (true) {
 
-    result = snd_card_next(&card);
+    int result = snd_card_next(&card);
     if (result < 0) {
       qLog(Error) << "Unable to get soundcard:" << snd_strerror(result);
       break;

src/engine/enginebase.cpp

@@ -52,6 +52,7 @@ Engine::Base::Base()
       crossfade_enabled_(true),
       autocrossfade_enabled_(false),
       crossfade_same_album_(false),
+      fadeout_pause_enabled_(false),
       fadeout_duration_(2),
       fadeout_duration_nanosec_(2 * kNsecPerSec),
       about_to_end_emitted_(false) {}

src/engine/gstengine.cpp

@@ -367,10 +367,10 @@ EngineBase::OutputDetailsList GstEngine::GetOutputsList() const {
     output.name = plugin.name;
     output.description = plugin.description;
     if (plugin.name == kAutoSink) output.iconname = "soundcard";
-    else if ((plugin.name == kALSASink) || (plugin.name == kOSS4Sink) || (plugin.name == kOSS4Sink)) output.iconname = "alsa";
-    else if (plugin.name== kJackAudioSink) output.iconname = "jack";
+    else if (plugin.name == kALSASink || plugin.name == kOSS4Sink) output.iconname = "alsa";
+    else if (plugin.name == kJackAudioSink) output.iconname = "jack";
     else if (plugin.name == kPulseSink) output.iconname = "pulseaudio";
-    else if ((plugin.name == kA2DPSink) || (plugin.name == kAVDTPSink)) output.iconname = "bluetooth";
+    else if (plugin.name == kA2DPSink || plugin.name == kAVDTPSink) output.iconname = "bluetooth";
     else output.iconname = "soundcard";
     ret.append(output);
   }

src/engine/gstenginepipeline.cpp

@@ -89,6 +89,7 @@ GstEnginePipeline::GstEnginePipeline(GstEngine *engine)
       next_uri_set_(false),
       volume_percent_(100),
       volume_modifier_(1.0),
+      use_fudge_timer_(false),
       pipeline_(nullptr),
       audiobin_(nullptr),
       queue_(nullptr),

src/engine/phononengine.cpp

@@ -183,7 +183,6 @@ EngineBase::OutputDetailsList PhononEngine::GetOutputsList() const {
 bool PhononEngine::ValidOutput(const QString &output) {
 
   return (output == "auto" || output == "" || output == DefaultOutput());
-  return(false);
 
 }
 

src/playlist/playlist.cpp

@@ -861,7 +861,7 @@ void Playlist::InsertItems(const PlaylistItemList &itemsIn, int pos, bool play_n
   // exercise vetoes
   SongList songs;
 
-  for (PlaylistItemPtr item : items) {
+  for (const PlaylistItemPtr &item : items) {
     songs << item->Metadata();
   }
 
@@ -1432,13 +1432,11 @@ PlaylistItemList Playlist::RemoveItemsWithoutUndo(int row, int count) {
   endRemoveRows();
 
   QList<int>::iterator it = virtual_items_.begin();
-  int i = 0;
   while (it != virtual_items_.end()) {
     if (*it >= items_.count())
       it = virtual_items_.erase(it);
     else
       ++it;
-    ++i;
   }
 
   // Reset current_virtual_index_
@@ -1738,7 +1736,7 @@ QSortFilterProxyModel *Playlist::proxy() const { return proxy_; }
 
 SongList Playlist::GetAllSongs() const {
   SongList ret;
-  for (PlaylistItemPtr item : items_) {
+  for (const PlaylistItemPtr &item : items_) {
     ret << item->Metadata();
   }
   return ret;
@@ -1748,7 +1746,7 @@ PlaylistItemList Playlist::GetAllItems() const { return items_; }
 
 quint64 Playlist::GetTotalLength() const {
   quint64 ret = 0;
-  for (PlaylistItemPtr item : items_) {
+  for (const PlaylistItemPtr &item : items_) {
     quint64 length = item->Metadata().length_nanosec();
     if (length > 0) ret += length;
   }

src/playlist/playlistbackend.cpp

@@ -291,7 +291,7 @@ void PlaylistBackend::SavePlaylist(int playlist, const PlaylistItemList &items,
   if (db_->CheckErrors(clear)) return;
 
   // Save the new ones
-  for (PlaylistItemPtr item : items) {
+  for (const PlaylistItemPtr &item : items) {
     insert.bindValue(":playlist", playlist);
     item->BindToQuery(&insert);
 

src/playlist/playlistdelegates.cpp

@@ -262,13 +262,9 @@ bool PlaylistDelegateBase::helpEvent(QHelpEvent *event, QAbstractItemView *view,
 
   switch (event->type()) {
     case QEvent::ToolTip: {
-      QRect displayed_text;
-      QSize real_text;
-      bool is_elided = false;
-
-      real_text = sizeHint(option, index);
-      displayed_text = view->visualRect(index);
-      is_elided = displayed_text.width() < real_text.width();
+      QSize real_text = sizeHint(option, index);
+      QRect displayed_text = view->visualRect(index);
+      bool is_elided = displayed_text.width() < real_text.width();
       if (is_elided) {
         QToolTip::showText(he->globalPos(), text, view);
       }

src/playlist/playlistfilterparser.cpp

@@ -296,7 +296,8 @@ FilterTree *FilterParser::parseAndGroup() {
       break;
     }
     checkAnd();  // if there's no 'AND', we'll add the term anyway...
-  } while (iter_ != end_);
+  }
+  while (iter_ != end_);
   return group;
 }
 
@@ -304,13 +305,13 @@ bool FilterParser::checkAnd() {
   if (iter_ != end_) {
     if (*iter_ == QChar('A')) {
       buf_ += *iter_;
-      iter_++;
+      ++iter_;
       if (iter_ != end_ && *iter_ == QChar('N')) {
         buf_ += *iter_;
-        iter_++;
+        ++iter_;
         if (iter_ != end_ && *iter_ == QChar('D')) {
           buf_ += *iter_;
-          iter_++;
+          ++iter_;
           if (iter_ != end_ && (iter_->isSpace() || *iter_ == QChar('-') || *iter_ == '(')) {
             advance();
             buf_.clear();
@@ -337,10 +338,10 @@ bool FilterParser::checkOr(bool step_over) {
     if (iter_ != end_) {
       if (*iter_ == 'O') {
         buf_ += *iter_;
-        iter_++;
+        ++iter_;
         if (iter_ != end_ && *iter_ == 'R') {
           buf_ += *iter_;
-          iter_++;
+          ++iter_;
           if (iter_ != end_ && (iter_->isSpace() || *iter_ == '-' || *iter_ == '(')) {
             if (step_over) {
               buf_.clear();
@@ -359,7 +360,7 @@ FilterTree *FilterParser::parseSearchExpression() {
   advance();
   if (iter_ == end_) return new NopFilter;
   if (*iter_ == '(') {
-    iter_++;
+    ++iter_;
     advance();
     FilterTree *tree = parseOrGroup();
     advance();
@@ -375,7 +376,8 @@ FilterTree *FilterParser::parseSearchExpression() {
     FilterTree *tree = parseSearchExpression();
     if (tree->type() != FilterTree::Nop) return new NotFilter(tree);
     return tree;
-  } else {
+  }
+  else {
     return parseSearchTerm();
   }
 }
@@ -401,10 +403,10 @@ FilterTree *FilterParser::parseSearchTerm() {
         buf_.clear();
         prefix.clear();  // prefix isn't allowed here - let's ignore it
       }
-      else if (iter_->isSpace() || *iter_ == '(' || *iter_ == ')' ||
-                 *iter_ == '-') {
+      else if (iter_->isSpace() || *iter_ == '(' || *iter_ == ')' || *iter_ == '-') {
         break;
-      } else if (buf_.isEmpty()) {
+      }
+      else if (buf_.isEmpty()) {
         // we don't know whether there is a column part in this search term thus we assume the latter and just try and read a prefix
         if (prefix.isEmpty() && (*iter_ == '>' || *iter_ == '<' || *iter_ == '=' || *iter_ == '!')) {
           prefix += *iter_;
@@ -428,8 +430,8 @@ FilterTree *FilterParser::parseSearchTerm() {
   return createSearchTermTreeNode(col, prefix, search);
 }
 
-FilterTree *FilterParser::createSearchTermTreeNode(
-    const QString &col, const QString &prefix, const QString &search) const {
+FilterTree *FilterParser::createSearchTermTreeNode(const QString &col, const QString &prefix, const QString &search) const {
+
   if (search.isEmpty() && prefix != "=") {
     return new NopFilter;
   }

src/playlist/playlistmanager.cpp

@@ -451,7 +451,7 @@ void PlaylistManager::SongsDiscovered(const SongList &songs) {
   for (const Song &song : songs) {
     for (const Data &data : playlists_) {
       PlaylistItemList items = data.p->collection_items_by_id(song.id());
-      for (PlaylistItemPtr item : items) {
+      for (PlaylistItemPtr &item : items) {
         if (item->Metadata().directory_id() != song.directory_id()) continue;
         static_cast<CollectionPlaylistItem*>(item.get())->SetMetadata(song);
         data.p->ItemChanged(item);

src/playlist/playlisttabbar.cpp

@@ -411,14 +411,10 @@ bool PlaylistTabBar::event(QEvent *e) {
     case QEvent::ToolTip: {
       QHelpEvent *he = static_cast<QHelpEvent*>(e);
 
-      QRect displayed_tab;
-      QSize real_tab;
-      bool is_elided = false;
-
-      real_tab = tabSizeHint(tabAt(he->pos()));
-      displayed_tab = tabRect(tabAt(he->pos()));
+      QSize real_tab = tabSizeHint(tabAt(he->pos()));
+      QRect displayed_tab = tabRect(tabAt(he->pos()));
       // Check whether the tab is elided or not
-      is_elided = displayed_tab.width() < real_tab.width();
+      bool is_elided = displayed_tab.width() < real_tab.width();
       if (!is_elided) {
         // If it's not elided, don't show the tooltip
         QToolTip::hideText();

src/playlist/songloaderinserter.cpp

@@ -38,6 +38,7 @@ SongLoaderInserter::SongLoaderInserter(TaskManager *task_manager, CollectionBack
       row_(-1),
       play_now_(true),
       enqueue_(false),
+      enqueue_next_(false),
       collection_(collection),
       player_(player) {}
 

src/queue/queue.cpp

@@ -225,7 +225,7 @@ void Queue::UpdateTotalLength() {
 
   quint64 total = 0;
 
-  for (QPersistentModelIndex row : source_indexes_) {
+  for (const QPersistentModelIndex &row : source_indexes_) {
     int id = row.row();
 
     Q_ASSERT(playlist_->has_item_at(id));

src/scrobbler/listenbrainzscrobbler.cpp

@@ -291,12 +291,11 @@ QByteArray ListenBrainzScrobbler::GetReplyData(QNetworkReply *reply) {
       data = reply->readAll();
       QJsonParseError error;
       QJsonDocument json_doc = QJsonDocument::fromJson(data, &error);
-      int error_code = -1;
       QString error_reason;
       if (error.error == QJsonParseError::NoError && !json_doc.isNull() && !json_doc.isEmpty() && json_doc.isObject()) {
         QJsonObject json_obj = json_doc.object();
         if (json_obj.contains("code") && json_obj.contains("error")) {
-          error_code = json_obj["code"].toInt();
+          int error_code = json_obj["code"].toInt();
           QString error_message = json_obj["error"].toString();
           error_reason = QString("%1 (%2)").arg(error_message).arg(error_code);
         }

src/settings/notificationssettingspage.cpp

@@ -342,7 +342,7 @@ void NotificationsSettingsPage::NotificationTypeChanged() {
 #ifdef Q_OS_MACOS
   ui_->notifications_options->setEnabled(pretty);
 #endif
-  ui_->notifications_duration->setEnabled(!pretty || (pretty && !ui_->notifications_disable_duration->isChecked()));
+  ui_->notifications_duration->setEnabled(!pretty || !ui_->notifications_disable_duration->isChecked());
   ui_->notifications_disable_duration->setEnabled(pretty);
 
 }

src/tidal/tidalservice.cpp

@@ -641,7 +641,6 @@ void TidalService::AlbumsReceived(QNetworkReply *reply, int search_id, int artis
   }
 
   int limit = 0;
-  int offset = 0;
   int total_albums = 0;
   if (artist_search_) {  // This was a list of albums by artist
     if (!json_obj.contains("limit") ||
@@ -653,7 +652,7 @@ void TidalService::AlbumsReceived(QNetworkReply *reply, int search_id, int artis
       return;
     }
     limit = json_obj["limit"].toInt();
-    offset = json_obj["offset"].toInt();
+    int offset = json_obj["offset"].toInt();
     total_albums = json_obj["totalNumberOfItems"].toInt();
     if (offset != offset_requested) {
       AlbumsFinished(artist_id, offset_requested, total_albums, limit);

src/widgets/fancytabwidget.cpp

@@ -420,7 +420,7 @@ void FancyTabWidget::paintEvent(QPaintEvent *pe) {
   QColor baseColor = StyleHelper::baseColor();
 
   QRect backgroundRect = rect();
-  backgroundRect.setWidth(((FancyTabBar*)tabBar())->width());
+  backgroundRect.setWidth(tabBar()->width());
   p.fillRect(backgroundRect, baseColor);
 
   // Horizontal gradient over the sidebar from transparent to dark

src/widgets/lineedit.cpp

@@ -54,6 +54,7 @@ ExtendedEditor::ExtendedEditor(QWidget *widget, int extra_right_padding, bool dr
       draw_hint_(draw_hint),
       font_point_size_(widget->font().pointSizeF() - 1),
       is_rtl_(false) {
+
   clear_button_->setIcon(IconLoader::Load("edit-clear-locationbar-ltr"));
   clear_button_->setIconSize(QSize(16, 16));
   clear_button_->setCursor(Qt::ArrowCursor);
@@ -76,6 +77,7 @@ ExtendedEditor::ExtendedEditor(QWidget *widget, int extra_right_padding, bool dr
   widget->connect(clear_button_, SIGNAL(clicked()), widget, SLOT(setFocus()));
 
   UpdateButtonGeometry();
+
 }
 
 void ExtendedEditor::set_hint(const QString& hint) {

src/widgets/multiloadingindicator.cpp

@@ -45,6 +45,7 @@ const int MultiLoadingIndicator::kSpacing = 6;
 
 MultiLoadingIndicator::MultiLoadingIndicator(QWidget *parent)
   : QWidget(parent),
+    task_manager_(nullptr),
     spinner_(new BusyIndicator(this))
 {
   spinner_->move(kHorizontalPadding, kVerticalPadding);

src/widgets/osd_x11.cpp

@@ -160,7 +160,7 @@ void OSD::CallFinished(QDBusPendingCallWatcher *watcher) {
 
   std::unique_ptr<QDBusPendingCallWatcher> w(watcher);
 
-  QDBusPendingReply<uint> reply = *watcher;
+  QDBusPendingReply<uint> reply = *w.get();
   if (reply.isError()) {
     qLog(Warning) << "Error sending notification" << reply.error().name();
     return;

src/widgets/playingwidget.cpp

@@ -217,12 +217,7 @@ void PlayingWidget::SetMode(int mode) {
 
   mode_ = Mode(mode);
 
-  if (mode_ == SmallSongDetails) {
-    fit_cover_width_action_->setEnabled(false);
-  }
-  else {
-    fit_cover_width_action_->setEnabled(true);
-  }
+  fit_cover_width_action_->setEnabled(mode_ != SmallSongDetails);
 
   UpdateHeight();
   UpdateDetailsText();