Fixing compilation issues.

src/libslic3r/ExPolygon.hpp

@@ -17,9 +17,9 @@ typedef std::vector<ExPolygon> ExPolygons;
 class ExPolygon
 {
 public:
-    ExPolygon() {}
+    ExPolygon() = default;
-	ExPolygon(const ExPolygon &other) : contour(other.contour), holes(other.holes) {}
+	ExPolygon(const ExPolygon &other) = default;
-    ExPolygon(ExPolygon &&other) noexcept : contour(std::move(other.contour)), holes(std::move(other.holes)) {}
+    ExPolygon(ExPolygon &&other) = default;
 	explicit ExPolygon(const Polygon &contour) : contour(contour) {}
 	explicit ExPolygon(Polygon &&contour) : contour(std::move(contour)) {}
 	explicit ExPolygon(const Points &contour) : contour(contour) {}
@@ -31,10 +31,10 @@ public:
 	ExPolygon(std::initializer_list<Point> contour) : contour(contour) {}
 	ExPolygon(std::initializer_list<Point> contour, std::initializer_list<Point> hole) : contour(contour), holes({ hole }) {}
 
-    ExPolygon& operator=(const ExPolygon &other) { contour = other.contour; holes = other.holes; return *this; }
+    ExPolygon& operator=(const ExPolygon &other) = default;
-    ExPolygon& operator=(ExPolygon &&other) noexcept { contour = std::move(other.contour); holes = std::move(other.holes); return *this; }
+    ExPolygon& operator=(ExPolygon &&other) = default;
 
-    Polygon contour;
+    Polygon  contour;
     Polygons holes;
 
     operator Points() const;

src/libslic3r/Fill/Fill3DHoneycomb.cpp

@@ -137,7 +137,7 @@ void Fill3DHoneycomb::_fill_surface_single(
     const FillParams                &params, 
     unsigned int                     thickness_layers,
     const std::pair<float, Point>   &direction, 
-    ExPolygon                       &expolygon, 
+    ExPolygon                        expolygon,
     Polylines                       &polylines_out)
 {
     // no rotation is supported for this infill pattern

src/libslic3r/Fill/Fill3DHoneycomb.hpp

@@ -23,7 +23,7 @@ protected:
 	    const FillParams                &params, 
 	    unsigned int                     thickness_layers,
 	    const std::pair<float, Point>   &direction, 
-	    ExPolygon                       &expolygon, 
+	    ExPolygon                 		 expolygon,
 	    Polylines                       &polylines_out) override;
 };
 

src/libslic3r/Fill/FillAdaptive.cpp

@@ -1253,7 +1253,7 @@ void Filler::_fill_surface_single(
     const FillParams              &params,
     unsigned int                   thickness_layers,
     const std::pair<float, Point> &direction,
-    ExPolygon                     &expolygon,
+    ExPolygon                      expolygon,
     Polylines                     &polylines_out)
 {
     assert (this->adapt_fill_octree);

src/libslic3r/Fill/FillAdaptive.hpp

@@ -64,7 +64,7 @@ protected:
 	    const FillParams                &params,
 	    unsigned int                     thickness_layers,
 	    const std::pair<float, Point>   &direction,
-	    ExPolygon                       &expolygon,
+	    ExPolygon                        expolygon,
 	    Polylines                       &polylines_out) override;
 	bool no_sort() const override { return true; }
 };

src/libslic3r/Fill/FillBase.hpp

@@ -120,7 +120,7 @@ protected:
         const FillParams                & /* params */, 
         unsigned int                      /* thickness_layers */,
         const std::pair<float, Point>   & /* direction */, 
-        ExPolygon                       & /* expolygon */, 
+        ExPolygon                         /* expolygon */,
         Polylines                       & /* polylines_out */) {};
 
     virtual float _layer_angle(size_t idx) const { return (idx & 1) ? float(M_PI/2.) : 0; }

src/libslic3r/Fill/FillConcentric.cpp

@@ -10,7 +10,7 @@ void FillConcentric::_fill_surface_single(
     const FillParams                &params, 
     unsigned int                     thickness_layers,
     const std::pair<float, Point>   &direction, 
-    ExPolygon                       &expolygon, 
+    ExPolygon                        expolygon,
     Polylines                       &polylines_out)
 {
     // no rotation is supported for this infill pattern

src/libslic3r/Fill/FillConcentric.hpp

@@ -16,7 +16,7 @@ protected:
 	    const FillParams                &params, 
 	    unsigned int                     thickness_layers,
 	    const std::pair<float, Point>   &direction, 
-	    ExPolygon                       &expolygon, 
+	    ExPolygon     		             expolygon,
 	    Polylines                       &polylines_out) override;
 
 	bool no_sort() const override { return true; }

src/libslic3r/Fill/FillGyroid.cpp

@@ -37,12 +37,12 @@ static inline Polyline make_wave(
     double period = points.back()(0);
     if (width != period) // do not extend if already truncated
     {
-        points.reserve(one_period.size() * floor(width / period));
+        points.reserve(one_period.size() * size_t(floor(width / period)));
         points.pop_back();
 
-        int n = points.size();
+        size_t n = points.size();
         do {
-            points.emplace_back(Vec2d(points[points.size()-n](0) + period, points[points.size()-n](1)));
+            points.emplace_back(points[points.size()-n].x() + period, points[points.size()-n].y());
         } while (points.back()(0) < width - EPSILON);
 
         points.emplace_back(Vec2d(width, f(width, z_sin, z_cos, vertical, flip)));
@@ -67,7 +67,7 @@ static std::vector<Vec2d> make_one_period(double width, double scaleFactor, doub
     std::vector<Vec2d> points;
     double dx = M_PI_2; // exact coordinates on main inflexion lobes
     double limit = std::min(2*M_PI, width);
-    points.reserve(ceil(limit / tolerance / 3));
+    points.reserve(coord_t(ceil(limit / tolerance / 3)));
 
     for (double x = 0.; x < limit - EPSILON; x += dx) {
         points.emplace_back(Vec2d(x, f(x, z_sin, z_cos, vertical, flip)));
@@ -152,10 +152,10 @@ void FillGyroid::_fill_surface_single(
     const FillParams                &params, 
     unsigned int                     thickness_layers,
     const std::pair<float, Point>   &direction, 
-    ExPolygon                       &expolygon, 
+    ExPolygon                        expolygon, 
     Polylines                       &polylines_out)
 {
-    float infill_angle = this->angle + (CorrectionAngle * 2*M_PI) / 360.;
+    auto infill_angle = float(this->angle + (CorrectionAngle * 2*M_PI) / 360.);
     if(std::abs(infill_angle) >= EPSILON)
         expolygon.rotate(-infill_angle);
 

src/libslic3r/Fill/FillGyroid.hpp

@@ -32,7 +32,7 @@ protected:
         const FillParams                &params, 
         unsigned int                     thickness_layers,
         const std::pair<float, Point>   &direction, 
-        ExPolygon                       &expolygon, 
+        ExPolygon                        expolygon,
         Polylines                       &polylines_out) override;
 };
 

src/libslic3r/Fill/FillHoneycomb.cpp

@@ -10,7 +10,7 @@ void FillHoneycomb::_fill_surface_single(
     const FillParams                &params, 
     unsigned int                     thickness_layers,
     const std::pair<float, Point>   &direction, 
-    ExPolygon                       &expolygon, 
+    ExPolygon                        expolygon,
     Polylines                       &polylines_out)
 {
     // cache hexagons math

src/libslic3r/Fill/FillHoneycomb.hpp

@@ -20,7 +20,7 @@ protected:
 	    const FillParams                &params, 
 	    unsigned int                     thickness_layers,
 	    const std::pair<float, Point>   &direction, 
-	    ExPolygon                       &expolygon, 
+	    ExPolygon                 		 expolygon,
 	    Polylines                       &polylines_out) override;
 
 	// Caching the 

src/libslic3r/Fill/FillPlanePath.cpp

@@ -10,7 +10,7 @@ void FillPlanePath::_fill_surface_single(
     const FillParams                &params, 
     unsigned int                     thickness_layers,
     const std::pair<float, Point>   &direction, 
-    ExPolygon                       &expolygon, 
+    ExPolygon                        expolygon,
     Polylines                       &polylines_out)
 {
     expolygon.rotate(- direction.first);

src/libslic3r/Fill/FillPlanePath.hpp

@@ -23,7 +23,7 @@ protected:
         const FillParams                &params, 
         unsigned int                     thickness_layers,
         const std::pair<float, Point>   &direction, 
-        ExPolygon                       &expolygon, 
+        ExPolygon                        expolygon,
         Polylines                       &polylines_out) override;
 
     float _layer_angle(size_t idx) const override { return 0.f; }

src/libslic3r/Fill/FillRectilinear.cpp

@@ -11,7 +11,7 @@ void FillLine::_fill_surface_single(
     const FillParams                &params,
     unsigned int                     thickness_layers,
     const std::pair<float, Point>   &direction,
-    ExPolygon                       &expolygon,
+    ExPolygon                        expolygon,
     Polylines                       &polylines_out)
 {
     // rotate polygons so that we can work with vertical lines here

src/libslic3r/Fill/FillRectilinear.hpp

@@ -20,7 +20,7 @@ protected:
 	    const FillParams                &params, 
 	    unsigned int                     thickness_layers,
 	    const std::pair<float, Point>   &direction, 
-	    ExPolygon                       &expolygon, 
+	    ExPolygon    		             expolygon,
 	    Polylines                       &polylines_out) override;
 
 	coord_t _min_spacing;

src/libslic3r/Polygon.hpp

@@ -21,7 +21,7 @@ public:
     Point& operator[](Points::size_type idx) { return this->points[idx]; }
     const Point& operator[](Points::size_type idx) const { return this->points[idx]; }
 
-    Polygon() {}
+    Polygon() = default;
     virtual ~Polygon() = default;
     explicit Polygon(const Points &points) : MultiPoint(points) {}
 	Polygon(std::initializer_list<Point> points) : MultiPoint(points) {}