Fix some more old style cast and float comparison warnings

python/core/qgscoordinatetransform.sip

@@ -165,7 +165,7 @@ class QgsCoordinateTransform : QObject
     /** See if the transform short circuits because src and dest are equivalent
      * @return bool True if it short circuits
      */
-    bool isShortCircuited();
+    bool isShortCircuited() const;
 
     /** Change the destination coordinate system by passing it a qgis srsid
     * A QGIS srsid is a unique key value to an entry on the tbl_srs in the

src/app/main.cpp

@@ -211,7 +211,7 @@ static void dumpBacktrace( unsigned int depth )
       }
 
       close( fd[1] );        // close writing end
-      execl( "/usr/bin/c++filt", "c++filt", ( char * ) nullptr );
+      execl( "/usr/bin/c++filt", "c++filt", static_cast< char * >( nullptr ) );
       perror( "could not start c++filt" );
       exit( 1 );
     }

src/app/qgslabelingwidget.cpp

@@ -73,7 +73,7 @@ void QgsLabelingWidget::labelModeChanged( int index )
     if ( QgsLabelingGui* widgetSimple = qobject_cast<QgsLabelingGui*>( mWidget ) )
     {
       // lighter variant - just change the mode of existing widget
-      widgetSimple->setLabelMode(( QgsLabelingGui::LabelMode ) index );
+      widgetSimple->setLabelMode( static_cast< QgsLabelingGui::LabelMode >( index ) );
       return;
     }
   }
@@ -93,7 +93,7 @@ void QgsLabelingWidget::labelModeChanged( int index )
   else
   {
     QgsLabelingGui* w = new QgsLabelingGui( mLayer, mCanvas, nullptr, this );
-    w->setLabelMode(( QgsLabelingGui::LabelMode ) index );
+    w->setLabelMode( static_cast< QgsLabelingGui::LabelMode >( index ) );
     w->init();
     mWidget = w;
   }

src/app/qgsvectorlayerproperties.cpp

@@ -872,7 +872,7 @@ void QgsVectorLayerProperties::saveStyleAsMenuTriggered( QAction *action )
   if ( index < 0 )
     return;
 
-  saveStyleAs(( StyleType ) index );
+  saveStyleAs( static_cast< StyleType >( index ) );
 }
 
 void QgsVectorLayerProperties::saveStyleAs( StyleType styleType )

src/core/dxf/qgsdxfexport.cpp

@@ -420,7 +420,7 @@ void QgsDxfExport::writeGroup( const QColor& color, int exactMatchCode, int rgbC
   int minDistAt = -1;
   int minDist = INT_MAX;
 
-  for ( int i = 1; i < ( int )( sizeof( mDxfColors ) / sizeof( *mDxfColors ) ) && minDist > 0; ++i )
+  for ( int i = 1; i < static_cast< int >( sizeof( mDxfColors ) / sizeof( *mDxfColors ) ) && minDist > 0; ++i )
   {
     int dist = color_distance( color.rgba(), i );
     if ( dist >= minDist )
@@ -3801,7 +3801,7 @@ int QgsDxfExport::closestColorMatch( QRgb pixel )
 {
   int idx = 0;
   int current_distance = INT_MAX;
-  for ( int i = 1; i < ( int )( sizeof( mDxfColors ) / sizeof( *mDxfColors ) ); ++i )
+  for ( int i = 1; i < static_cast< int >( sizeof( mDxfColors ) / sizeof( *mDxfColors ) ); ++i )
   {
     int dist = color_distance( pixel, i );
     if ( dist < current_distance )
@@ -4136,10 +4136,10 @@ QString QgsDxfExport::dxfEncoding( const QString &name )
       continue;
 
     int i;
-    for ( i = 0; i < ( int )( sizeof( mDxfEncodings ) / sizeof( *mDxfEncodings ) ) && name != mDxfEncodings[i][1]; ++i )
+    for ( i = 0; i < static_cast< int >( sizeof( mDxfEncodings ) / sizeof( *mDxfEncodings ) ) && name != mDxfEncodings[i][1]; ++i )
       ;
 
-    if ( i == ( int )( sizeof( mDxfEncodings ) / sizeof( *mDxfEncodings ) ) )
+    if ( i == static_cast< int >( sizeof( mDxfEncodings ) / sizeof( *mDxfEncodings ) ) )
       continue;
 
     return mDxfEncodings[i][0];
@@ -4154,10 +4154,10 @@ QStringList QgsDxfExport::encodings()
   Q_FOREACH ( QByteArray codec, QTextCodec::availableCodecs() )
   {
     int i;
-    for ( i = 0; i < ( int )( sizeof( mDxfEncodings ) / sizeof( *mDxfEncodings ) ) && strcmp( codec.data(), mDxfEncodings[i][1] ) != 0; ++i )
+    for ( i = 0; i < static_cast< int >( sizeof( mDxfEncodings ) / sizeof( *mDxfEncodings ) ) && strcmp( codec.data(), mDxfEncodings[i][1] ) != 0; ++i )
       ;
 
-    if ( i < ( int )( sizeof( mDxfEncodings ) / sizeof( *mDxfEncodings ) ) )
+    if ( i < static_cast< int >( sizeof( mDxfEncodings ) / sizeof( *mDxfEncodings ) ) )
       encodings << codec.data();
   }
   return encodings;

src/core/pal/feature.cpp

@@ -27,9 +27,6 @@
  *
  */
 
-#define _CRT_SECURE_NO_DEPRECATE
-
-
 #if defined(_VERBOSE_) || defined(_DEBUG_)
 #include <iostream>
 #endif
@@ -250,18 +247,18 @@ namespace pal
     double xdiff = -labelW / 2.0;
     double ydiff = -labelH / 2.0;
 
-    if ( mLF->quadOffset().x() != 0 )
+    if ( !qgsDoubleNear( mLF->quadOffset().x(), 0.0 ) )
     {
       xdiff += labelW / 2.0 * mLF->quadOffset().x();
     }
-    if ( mLF->quadOffset().y() != 0 )
+    if ( !qgsDoubleNear( mLF->quadOffset().y(), 0.0 ) )
     {
       ydiff += labelH / 2.0 * mLF->quadOffset().y();
     }
 
     if ( ! mLF->hasFixedPosition() )
     {
-      if ( angle != 0 )
+      if ( !qgsDoubleNear( angle, 0.0 ) )
       {
         double xd = xdiff * cos( angle ) - ydiff * sin( angle );
         double yd = xdiff * sin( angle ) + ydiff * cos( angle );
@@ -290,11 +287,11 @@ namespace pal
     }
     else
     {
-      if ( mLF->positionOffset().x() != 0 )
+      if ( !qgsDoubleNear( mLF->positionOffset().x(), 0.0 ) )
       {
         xdiff += mLF->positionOffset().x();
       }
-      if ( mLF->positionOffset().y() != 0 )
+      if ( !qgsDoubleNear( mLF->positionOffset().y(), 0.0 ) )
       {
         ydiff += mLF->positionOffset().y();
       }
@@ -359,7 +356,7 @@ namespace pal
       gamma2 = a90 / 3.0;
 
 
-    if ( gamma1 == 0 || gamma2 == 0 )
+    if ( qgsDoubleNear( gamma1, 0.0 ) || qgsDoubleNear( gamma2, 0.0 ) )
     {
       std::cout << "Oups... label size error..." << std::endl;
     }
@@ -538,7 +535,7 @@ namespace pal
     ad[line->nbPoints-1] = ll;
 
 
-    nbls = ( int )( ll / xrm ); // ratio bw line length and label width
+    nbls = static_cast< int >( ll / xrm ); // ratio bw line length and label width
 
 #ifdef _DEBUG_FULL_
     std::cout << "line length :" << ll << std::endl;
@@ -707,7 +704,7 @@ namespace pal
     double dy = new_y - old_y;
 
     double segment_length = path_distances[index];
-    if ( segment_length == 0 )
+    if ( qgsDoubleNear( segment_length, 0.0 ) )
     {
       // Not allowed to place across on 0 length segments or discontinuities
       return nullptr;
@@ -732,7 +729,7 @@ namespace pal
       LabelInfo::CharacterInfo& ci = ( orientation > 0 ? li->char_info[i] : li->char_info[li->char_num-i-1] );
 
       // Coordinates this character will start at
-      if ( segment_length == 0 )
+      if ( qgsDoubleNear( segment_length, 0.0 ) )
       {
         // Not allowed to place across on 0 length segments or discontinuities
         delete slp;
@@ -895,7 +892,7 @@ namespace pal
       total_distance += path_distances[i];
     }
 
-    if ( total_distance == 0 )
+    if ( qgsDoubleNear( total_distance, 0.0 ) )
     {
       delete[] path_distances;
       return 0;

src/core/pal/geomfunction.cpp

@@ -165,7 +165,8 @@ namespace pal
     b2 = x3 - x4;
     c2 = x4 * y3 - x3 * y4;
 
-    if (( denom = a1 * b2 - a2 * b1 ) == 0 )
+    denom = a1 * b2 - a2 * b1;
+    if ( qgsDoubleNear( denom, 0.0 ) )
     {
       return false;
     }
@@ -376,7 +377,7 @@ namespace pal
       // Should never happen, No real solutions.
       return;
 
-    if ( det == 0 )
+    if ( qgsDoubleNear( det, 0.0 ) )
     {
       // Could potentially happen.... One solution.
       double t = -B / ( 2 * A );

src/core/pal/labelposition.cpp

@@ -27,8 +27,6 @@
  *
  */
 
-#define _CRT_SECURE_NO_DEPRECATE
-
 #include "layer.h"
 #include "pal.h"
 #include "costcalculator.h"
@@ -395,19 +393,9 @@ namespace pal
       nextPart->setConflictsWithObstacle( conflicts );
   }
 
-  bool LabelPosition::costShrink( void *l, void *r )
-  {
-    return (( LabelPosition* ) l )->mCost < (( LabelPosition* ) r )->mCost;
-  }
-
-  bool LabelPosition::costGrow( void *l, void *r )
-  {
-    return (( LabelPosition* ) l )->mCost > (( LabelPosition* ) r )->mCost;
-  }
-
   bool LabelPosition::polygonObstacleCallback( FeaturePart *obstacle, void *ctx )
   {
-    PolygonCostCalculator *pCost = ( PolygonCostCalculator* ) ctx;
+    PolygonCostCalculator *pCost = reinterpret_cast< PolygonCostCalculator* >( ctx );
 
     LabelPosition *lp = pCost->getLabel();
     if (( obstacle == lp->feature ) || ( obstacle->getHoleOf() && obstacle->getHoleOf() != lp->feature ) )
@@ -443,7 +431,7 @@ namespace pal
 
   bool LabelPosition::pruneCallback( LabelPosition *candidatePosition, void *ctx )
   {
-    FeaturePart *obstaclePart = (( PruneCtx* ) ctx )->obstacle;
+    FeaturePart *obstaclePart = ( reinterpret_cast< PruneCtx* >( ctx ) )->obstacle;
 
     // test whether we should ignore this obstacle for the candidate. We do this if:
     // 1. it's not a hole, and the obstacle belongs to the same label feature as the candidate (eg
@@ -464,7 +452,7 @@ namespace pal
 
   bool LabelPosition::countOverlapCallback( LabelPosition *lp, void *ctx )
   {
-    LabelPosition *lp2 = ( LabelPosition* ) ctx;
+    LabelPosition *lp2 = reinterpret_cast< LabelPosition* >( ctx );
 
     //std::cerr << "checking " << lp2->getFeature()->getUID() << " x " << lp->getFeature()->getUID() << std::endl;
     if ( lp2->isInConflict( lp ) )
@@ -478,11 +466,12 @@ namespace pal
 
   bool LabelPosition::countFullOverlapCallback( LabelPosition *lp, void *ctx )
   {
-    LabelPosition *lp2 = (( CountContext* ) ctx )->lp;
-    double *cost = (( CountContext* ) ctx )->cost;
+    CountContext* context = reinterpret_cast< CountContext* >( ctx );
+    LabelPosition *lp2 = context->lp;
+    double *cost = context->cost;
     //int *feat = ((CountContext*)ctx)->feat;
-    int *nbOv = (( CountContext* ) ctx )->nbOv;
-    double *inactiveCost = (( CountContext* ) ctx )->inactiveCost;
+    int *nbOv = context->nbOv;
+    double *inactiveCost = context->inactiveCost;
     if ( lp2->isInConflict( lp ) )
     {
 #ifdef _DEBUG_FULL_
@@ -499,7 +488,7 @@ namespace pal
 
   bool LabelPosition::removeOverlapCallback( LabelPosition *lp, void *ctx )
   {
-    LabelPosition *lp2 = ( LabelPosition * ) ctx;
+    LabelPosition *lp2 = reinterpret_cast< LabelPosition * >( ctx );
 
     if ( lp2->isInConflict( lp ) )
     {

src/core/pal/labelposition.h

@@ -158,7 +158,7 @@ namespace pal
        */
       FeaturePart * getFeaturePart();
 
-      double getNumOverlaps() const { return nbOverlap; }
+      int getNumOverlaps() const { return nbOverlap; }
       void resetNumOverlaps() { nbOverlap = 0; } // called from problem.cpp, pal.cpp
 
       int getProblemFeatureId() const { return probFeat; }
@@ -243,10 +243,6 @@ namespace pal
       /** Check whether the candidate in ctx overlap with obstacle feat */
       static bool pruneCallback( LabelPosition *candidatePosition, void *ctx );
 
-      // for sorting
-      static bool costShrink( void *l, void *r );
-      static bool costGrow( void *l, void *r );
-
       // for counting number of overlaps
       typedef struct
       {

src/core/pal/pointset.cpp

@@ -157,7 +157,7 @@ namespace pal
     GEOSContextHandle_t geosctxt = geosContext();
 
     bool needClose = false;
-    if ( type == GEOS_POLYGON && ( x[0] != x[ nbPoints - 1] || y[0] != y[ nbPoints - 1 ] ) )
+    if ( type == GEOS_POLYGON && ( !qgsDoubleNear( x[0], x[ nbPoints - 1] ) || !qgsDoubleNear( y[0], y[ nbPoints - 1 ] ) ) )
     {
       needClose = true;
     }