fixed warnings shown in QtCreator

src/analyzerconsole.h

@@ -47,8 +47,8 @@ class CAnalyzerConsole : public QDialog
 
 public:
     CAnalyzerConsole ( CClient*        pNCliP,
-                       QWidget*        parent = 0,
+                       QWidget*        parent = nullptr,
-                       Qt::WindowFlags f = 0 );
+                       Qt::WindowFlags f = nullptr );
 
 
 protected:

src/audiomixerboard.h

@@ -95,7 +95,7 @@ class CAudioMixerBoard : public QGroupBox
     Q_OBJECT
 
 public:
-    CAudioMixerBoard ( QWidget* parent = 0, Qt::WindowFlags f = 0 );
+    CAudioMixerBoard ( QWidget* parent = nullptr, Qt::WindowFlags f = nullptr );
 
     void HideAll();
     void ApplyNewConClientList ( CVector<CChannelInfo>& vecChanInfo );

src/channel.cpp

@@ -27,7 +27,7 @@
 
 // CChannel implementation *****************************************************
 CChannel::CChannel ( const bool bNIsServer ) :
-    vecdGains          ( MAX_NUM_CHANNELS, (double) 1.0 ),
+    vecdGains          ( MAX_NUM_CHANNELS, 1.0 ),
     bDoAutoSockBufSize ( true ),
     bIsEnabled         ( false ),
     bIsServer          ( bNIsServer )
@@ -355,9 +355,9 @@ void CChannel::OnNetTranspPropsReceived ( CNetworkTransportProps NetworkTranspor
         {
             // store received parameters
             eAudioCompressionType = NetworkTransportProps.eAudioCodingType;
-            iNumAudioChannels     = NetworkTransportProps.iNumAudioChannels;
+            iNumAudioChannels     = static_cast<int> ( NetworkTransportProps.iNumAudioChannels );
             iNetwFrameSizeFact    = NetworkTransportProps.iBlockSizeFact;
-            iNetwFrameSize        = NetworkTransportProps.iBaseNetworkPacketSize;
+            iNetwFrameSize        = static_cast<int> ( NetworkTransportProps.iBaseNetworkPacketSize );
 
             MutexSocketBuf.lock();
             {
@@ -388,14 +388,13 @@ CNetworkTransportProps CChannel::GetNetworkTransportPropsFromCurrentSettings()
 {
     // use current stored settings of the channel to fill the network transport
     // properties structure
-    return CNetworkTransportProps (
+    return CNetworkTransportProps ( static_cast<uint32_t> ( iNetwFrameSize ),
-        iNetwFrameSize,
+                                    static_cast<uint16_t> ( iNetwFrameSizeFact ),
-        iNetwFrameSizeFact,
+                                    static_cast<uint32_t> ( iNumAudioChannels ),
-        iNumAudioChannels,
+                                    SYSTEM_SAMPLE_RATE_HZ,
-        SYSTEM_SAMPLE_RATE_HZ,
+                                    eAudioCompressionType,
-        eAudioCompressionType,
+                                    0, // version of the codec
-        0, // version of the codec
+                                    0 );
-        0 );
 }
 
 void CChannel::Disconnect()

src/chatdlg.h

@@ -39,7 +39,7 @@ class CChatDlg : public QDialog, private Ui_CChatDlgBase
     Q_OBJECT
 
 public:
-    CChatDlg ( QWidget* parent = 0, Qt::WindowFlags f = 0 );
+    CChatDlg ( QWidget* parent = nullptr, Qt::WindowFlags f = nullptr );
 
     void AddChatText ( QString strChatText );
 

src/client.cpp

@@ -1090,7 +1090,7 @@ void CClient::ProcessAudioDataIntern ( CVector<int16_t>& vecsStereoSndCrd )
                 if ( eAudioCompressionType == CT_OPUS )
                 {
                     opus_custom_decode ( OpusDecoderMono,
-                                         NULL,
+                                         nullptr,
                                          iCeltNumCodedBytes,
                                          &vecsAudioSndCrdMono[i * SYSTEM_FRAME_SIZE_SAMPLES],
                                          SYSTEM_FRAME_SIZE_SAMPLES );
@@ -1101,7 +1101,7 @@ void CClient::ProcessAudioDataIntern ( CVector<int16_t>& vecsStereoSndCrd )
                 if ( eAudioCompressionType == CT_OPUS )
                 {
                     opus_custom_decode ( OpusDecoderStereo,
-                                         NULL,
+                                         nullptr,
                                          iCeltNumCodedBytes,
                                          &vecsStereoSndCrd[i * 2 * SYSTEM_FRAME_SIZE_SAMPLES],
                                          SYSTEM_FRAME_SIZE_SAMPLES );
@@ -1158,7 +1158,7 @@ int CClient::EstimatedOverallDelay ( const int iPingTimeMs )
     // Consider the jitter buffer on the client and on the server side, too.
     const double dTotalJitterBufferDelayMs = SYSTEM_BLOCK_DURATION_MS_FLOAT *
         static_cast<double> ( GetSockBufNumFrames() +
-                              GetServerSockBufNumFrames() ) * 0.7f;
+                              GetServerSockBufNumFrames() ) * 0.7;
 
     // consider delay introduced by the sound card conversion buffer by using
     // "GetSndCrdConvBufAdditionalDelayMonoBlSize()"

src/clientdlg.cpp

@@ -920,8 +920,8 @@ void CClientDlg::OnTimerSigMet()
     }
 
     // show current level
-    lbrInputLevelL->setValue ( (int) ceil ( dCurSigLevelL ) );
+    lbrInputLevelL->setValue ( static_cast<int> ( ceil ( dCurSigLevelL ) ) );
-    lbrInputLevelR->setValue ( (int) ceil ( dCurSigLevelR ) );
+    lbrInputLevelR->setValue ( static_cast<int> ( ceil ( dCurSigLevelR ) ) );
 }
 
 void CClientDlg::OnTimerBuffersLED()
@@ -1036,9 +1036,7 @@ void CClientDlg::Connect ( const QString& strSelectedAddress,
         catch ( CGenErr generr )
         {
             // show error message and return the function
-            QMessageBox::critical (
+            QMessageBox::critical ( this, APP_NAME, generr.GetErrorText(), "Close", nullptr );
-                this, APP_NAME, generr.GetErrorText(), "Close", 0 );
-
             return;
         }
 

src/clientsettingsdlg.cpp

@@ -455,7 +455,7 @@ QString CClientSettingsDlg::GenSndCrdBufferDelayString ( const int     iFrameSiz
 {
     // use two times the buffer delay for the entire delay since
     // we have input and output
-    return QString().setNum ( (double) iFrameSize * 2 *
+    return QString().setNum ( static_cast<double> ( iFrameSize ) * 2 *
         1000 / SYSTEM_SAMPLE_RATE_HZ, 'f', 2 ) + " ms (" +
         QString().setNum ( iFrameSize ) + strAddText + ")";
 }
@@ -629,7 +629,7 @@ void CClientSettingsDlg::OnSoundcardActivated ( int iSndDevIdx )
             QString ( tr ( "The selected audio device could not be used "
             "because of the following error: " ) ) + strError +
             QString ( tr ( " The previous driver will be selected." ) ),
-            "Ok", 0 );
+            "Ok", nullptr );
 
         // recover old selection
         cbxSoundcard->setCurrentIndex ( pClient->GetSndCrdDev() );

src/clientsettingsdlg.h

@@ -52,8 +52,8 @@ class CClientSettingsDlg : public QDialog, private Ui_CClientSettingsDlgBase
 
 public:
     CClientSettingsDlg ( CClient* pNCliP,
-                         QWidget* parent = 0,
+                         QWidget* parent = nullptr,
-                         Qt::WindowFlags f = 0 );
+                         Qt::WindowFlags f = nullptr );
 
     void SetStatus ( const CMultiColorLED::ELightColor eStatus ) { ledNetw->SetLight ( eStatus ); }
 

src/connectdlg.cpp

@@ -440,7 +440,7 @@ void CConnectDlg::OnServerListItemDoubleClicked ( QTreeWidgetItem* Item,
 {
     // if a server list item was double clicked, it is the same as if the
     // connect button was clicked
-    if ( Item != 0 )
+    if ( Item != nullptr )
     {
         OnConnectClicked();
     }
@@ -632,7 +632,7 @@ QTreeWidgetItem* CConnectDlg::FindListViewItem ( const CHostAddress& InetAddr )
         }
     }
 
-    return NULL;
+    return nullptr;
 }
 
 QTreeWidgetItem* CConnectDlg::GetParentListViewItem ( QTreeWidgetItem* pItem )

src/connectdlg.h

@@ -48,8 +48,8 @@ class CConnectDlg : public QDialog, private Ui_CConnectDlgBase
 
 public:
     CConnectDlg ( const bool bNewShowCompleteRegList,
-                  QWidget* parent = 0,
+                  QWidget* parent = nullptr,
-                  Qt::WindowFlags f = 0 );
+                  Qt::WindowFlags f = nullptr );
 
     void Init ( const QString           strNewCentralServerAddr, 
                 const CVector<QString>& vstrIPAddresses );

src/multicolorled.h

@@ -51,7 +51,7 @@ public:
         RL_RED
     };
 
-    CMultiColorLED ( QWidget* parent = 0, Qt::WindowFlags f = 0 );
+    CMultiColorLED ( QWidget* parent = nullptr, Qt::WindowFlags f = nullptr );
 
     void Reset();
     void SetLight ( const ELightColor eNewStatus );

src/multicolorledbar.h

@@ -39,7 +39,7 @@ class CMultiColorLEDBar : public QFrame
     Q_OBJECT
 
 public:
-    CMultiColorLEDBar ( QWidget* parent = 0, Qt::WindowFlags f = 0 );
+    CMultiColorLEDBar ( QWidget* parent = nullptr, Qt::WindowFlags f = nullptr );
     virtual ~CMultiColorLEDBar();
 
     void setValue ( const int value );

src/server.cpp

@@ -797,7 +797,7 @@ JitterMeas.Measure();
                     if ( vecChannels[iCurChanID].GetAudioCompressionType() == CT_OPUS )
                     {
                         opus_custom_decode ( OpusDecoderMono[iCurChanID],
-                                             NULL,
+                                             nullptr,
                                              iCeltNumCodedBytes,
                                              &vecvecsData[i][0],
                                              SYSTEM_FRAME_SIZE_SAMPLES );
@@ -809,7 +809,7 @@ JitterMeas.Measure();
                     if ( vecChannels[iCurChanID].GetAudioCompressionType() == CT_OPUS )
                     {
                         opus_custom_decode ( OpusDecoderStereo[iCurChanID],
-                                             NULL,
+                                             nullptr,
                                              iCeltNumCodedBytes,
                                              &vecvecsData[i][0],
                                              SYSTEM_FRAME_SIZE_SAMPLES );
@@ -1252,11 +1252,11 @@ bool CServer::PutAudioData ( const CVector<uint8_t>& vecbyRecBuf,
                 // time reset gains of this channel ID for all other channels
                 for ( int i = 0; i < iMaxNumChannels; i++ )
                 {
-                    vecChannels[iCurChanID].SetGain ( i, (double) 1.0 );
+                    vecChannels[iCurChanID].SetGain ( i, 1.0 );
 
                     // other channels (we do not distinguish the case if
                     // i == iCurChanID for simplicity)
-                    vecChannels[i].SetGain ( iCurChanID, (double) 1.0 );
+                    vecChannels[i].SetGain ( iCurChanID, 1.0 );
                 }
             }
             else

src/serverdlg.cpp

@@ -450,7 +450,7 @@ void CServerDlg::OnTimer()
         // fill list with connected clients
         for ( int i = 0; i < iNumChannels; i++ )
         {
-            if ( !( vecHostAddresses[i].InetAddr == QHostAddress ( (quint32) 0 ) ) )
+            if ( !( vecHostAddresses[i].InetAddr == QHostAddress ( static_cast<quint32> ( 0 ) ) ) )
             {
                 // IP, port number
                 vecpListViewItems[i]->setText ( 0,

src/serverdlg.h

@@ -53,8 +53,8 @@ public:
     CServerDlg ( CServer*        pNServP,
                  CSettings*      pNSetP,
                  const bool      bStartMinimized,
-                 QWidget*        parent = 0,
+                 QWidget*        parent = nullptr,
-                 Qt::WindowFlags f = 0 );
+                 Qt::WindowFlags f = nullptr );
 
 protected:
     virtual void changeEvent ( QEvent* pEvent );

src/socket.h

@@ -170,7 +170,7 @@ protected:
     class CSocketThread : public QThread
     {
     public:
-        CSocketThread ( CSocket* pNewSocket = NULL, QObject* parent = 0 ) :
+        CSocketThread ( CSocket* pNewSocket = nullptr, QObject* parent = nullptr ) :
           QThread ( parent ), pSocket ( pNewSocket ), bRun ( true ) {}
 
         void Stop()
@@ -191,7 +191,7 @@ protected:
         void run() {
             // make sure the socket pointer is initialized (should be always the
             // case)
-            if ( pSocket != NULL )
+            if ( pSocket != nullptr )
             {
                 while ( bRun )
                 {

src/soundbase.cpp

@@ -186,13 +186,13 @@ QString CSoundBase::SetDev ( const int iNewDev )
                 // have changed so that they are not compatible to our
                 // software anymore
                 QMessageBox::critical (
-                    0, APP_NAME, QString ( tr ( "The audio driver properties "
+                    nullptr, APP_NAME, QString ( tr ( "The audio driver properties "
                     "have changed to a state which is incompatible to this "
                     "software. The selected audio device could not be used "
                     "because of the following error: <b>" ) ) +
                     strErrorMessage +
                     QString ( tr ( "</b><br><br>Please restart the software." ) ),
-                    "Close", 0 );
+                    "Close", nullptr );
 
                 _exit ( 0 );
             }

src/util.cpp

@@ -170,13 +170,13 @@ void CAudioReverb::Init ( const int    iSampleRate,
 
     // delay lengths for 44100 Hz sample rate
     int lengths[9] = { 1116, 1356, 1422, 1617, 225, 341, 441, 211, 179 };
-    const double scaler = (double) iSampleRate / 44100.0;
+    const double scaler = static_cast<double> ( iSampleRate ) / 44100.0;
 
     if ( scaler != 1.0 )
     {
         for ( i = 0; i < 9; i++ )
         {
-            delay = (int) floor ( scaler * lengths[i] );
+            delay = static_cast<int> ( floor ( scaler * lengths[i] ) );
 
             if ( ( delay & 1 ) == 0 )
             {
@@ -206,7 +206,7 @@ void CAudioReverb::Init ( const int    iSampleRate,
     setT60 ( rT60, iSampleRate );
     outLeftDelay.Init ( lengths[7] );
     outRightDelay.Init ( lengths[8] );
-    allpassCoefficient = (double) 0.7;
+    allpassCoefficient = 0.7;
     Clear();
 }
 
@@ -223,7 +223,7 @@ bool CAudioReverb::isPrime ( const int number )
 
     if ( number & 1 )
     {
-        for ( int i = 3; i < (int) sqrt ( (double) number ) + 1; i += 2 )
+        for ( int i = 3; i < static_cast<int> ( sqrt ( static_cast<double> ( number ) ) ) + 1; i += 2 )
         {
             if ( ( number % i ) == 0 )
             {
@@ -263,7 +263,7 @@ void CAudioReverb::setT60 ( const double rT60,
     // set the reverberation T60 decay time
     for ( int i = 0; i < 4; i++ )
     {
-        combCoefficient[i] = pow ( (double) 10.0, (double) ( -3.0 *
+        combCoefficient[i] = pow ( 10.0, static_cast<double> ( -3.0 *
             combDelays[i].Size() / ( rT60 * iSampleRate ) ) );
     }
 }

src/util.h

@@ -83,7 +83,7 @@ inline short Double2Short ( const double dInput )
         return _MAXSHORT;
     }
 
-    return (short) dInput;
+    return static_cast<short> ( dInput );
 }
 
 // debug error handling
@@ -412,7 +412,7 @@ class CAboutDlg : public QDialog, private Ui_CAboutDlgBase
     Q_OBJECT
 
 public:
-    CAboutDlg ( QWidget* parent = 0 );
+    CAboutDlg ( QWidget* parent = nullptr );
 
     static QString GetVersionAndNameStr ( const bool bWithHtml = true );
 };
@@ -424,7 +424,7 @@ class CLicenceDlg : public QDialog
     Q_OBJECT
 
 public:
-    CLicenceDlg ( QWidget* parent = 0 );
+    CLicenceDlg ( QWidget* parent = nullptr );
 
 protected:
     QPushButton* butAccept;
@@ -441,7 +441,7 @@ class CMusProfDlg : public QDialog
 
 public:
     CMusProfDlg ( CClient* pNCliP,
-                  QWidget* parent = 0 );
+                  QWidget* parent = nullptr );
 
 protected:
     virtual void showEvent ( QShowEvent* );
@@ -469,7 +469,7 @@ class CHelpMenu : public QMenu
     Q_OBJECT
 
 public:
-    CHelpMenu ( QWidget* parent = 0 );
+    CHelpMenu ( QWidget* parent = nullptr );
 
 protected:
     CAboutDlg AboutDlg;
@@ -993,13 +993,13 @@ public:
     {
         switch ( eOSType )
         {
-        case OT_WINDOWS: return "Windows"; break;
+        case OT_WINDOWS: return "Windows";
-        case OT_MAC_OS:  return "MacOS";   break;
+        case OT_MAC_OS:  return "MacOS";
-        case OT_LINUX:   return "Linux";   break;
+        case OT_LINUX:   return "Linux";
-        case OT_ANDROID: return "Android"; break;
+        case OT_ANDROID: return "Android";
-        case OT_I_OS:    return "iOS";     break;
+        case OT_I_OS:    return "iOS";
-        case OT_UNIX:    return "Unix";    break;
+        case OT_UNIX:    return "Unix";
-        default:         return "Unknown"; break;
+        default:         return "Unknown";
         }
     }
 
@@ -1024,7 +1024,7 @@ class CAudioReverb
 public:
     CAudioReverb() {}
     
-    void Init ( const int iSampleRate, const double rT60 = (double) 1.1 );
+    void Init ( const int iSampleRate, const double rT60 = 1.1 );
     void Clear();
     void ProcessSample ( int16_t&     iInputOutputLeft,
                          int16_t&     iInputOutputRight,
@@ -1083,7 +1083,7 @@ class MathUtils
 public:
     static int round ( double x )
     {
-        return (int) ( ( x - floor ( x ) ) >= 0.5 ) ? ceil(x) : floor(x);
+        return static_cast<int> ( ( x - floor ( x ) ) >= 0.5 ) ? static_cast<int> ( ceil ( x ) ) : static_cast<int> ( floor ( x ) );
     }
 
     static void UpDownIIR1 ( double&       dOldValue,