Run clang-tidy’s modernize-use-equals-default pass.

This replaces empty constructors and destructors with the default
keyword.

19 files changed, 25 insertions, 30 deletions

diff --git a/src/extension/db.cpp b/src/extension/db.cpp
index 8d6ad7e0e..caa23775d 100644
--- a/src/extension/db.cpp
+++ b/src/extension/db.cpp
@@ -32,8 +32,7 @@ DB db;
 
 /* Types */
 
-DB::DB (void) {
-}
+DB::DB (void) = default;
 
 
 struct ModuleInputCmp {
diff --git a/src/extension/implementation/implementation.h b/src/extension/implementation/implementation.h
index 52542064b..7658e5a83 100644
--- a/src/extension/implementation/implementation.h
+++ b/src/extension/implementation/implementation.h
@@ -70,9 +70,9 @@ public:
 class Implementation {
 public:
     // ----- Constructor / destructor -----
-    Implementation() {}
+    Implementation() = default;
     
-    virtual ~Implementation() {}
+    virtual ~Implementation() = default;
 
     // ----- Basic functions for all Extension -----
     virtual bool load(Inkscape::Extension::Extension * /*module*/) { return true; }
diff --git a/src/extension/implementation/script.cpp b/src/extension/implementation/script.cpp
index a8490fe73..90269c557 100644
--- a/src/extension/implementation/script.cpp
+++ b/src/extension/implementation/script.cpp
@@ -164,8 +164,7 @@ Script::Script()
  *   \brief     Destructor
  */
 Script::~Script()
-{
-}
+= default;
 
 
 
diff --git a/src/extension/input.h b/src/extension/input.h
index de3d9c0f8..426f77ccc 100644
--- a/src/extension/input.h
+++ b/src/extension/input.h
@@ -31,15 +31,15 @@ public: /* this is a hack for this release, this will be private shortly */
 
 public:
     struct open_failed : public std::exception {
-        ~open_failed() throw() override {}
+        ~open_failed() throw() override = default;
         const char *what() const throw() override { return "Open failed"; }
     };
     struct no_extension_found : public std::exception {
-        ~no_extension_found() throw() override {}
+        ~no_extension_found() throw() override = default;
         const char *what() const throw() override { return "No suitable input extension found"; }
     };
     struct open_cancelled : public std::exception {
-        ~open_cancelled() throw() override {}
+        ~open_cancelled() throw() override = default;
         const char *what() const throw() override { return "Open was cancelled"; }
     };
 
diff --git a/src/extension/internal/cairo-renderer.cpp b/src/extension/internal/cairo-renderer.cpp
index 05605a9d9..eca17966e 100644
--- a/src/extension/internal/cairo-renderer.cpp
+++ b/src/extension/internal/cairo-renderer.cpp
@@ -101,7 +101,7 @@ namespace Extension {
 namespace Internal {
 
 CairoRenderer::CairoRenderer(void)
-{}
+= default;
 
 CairoRenderer::~CairoRenderer(void)
 {
diff --git a/src/extension/internal/cdr-input.cpp b/src/extension/internal/cdr-input.cpp
index bf573cfac..e1f67dc85 100644
--- a/src/extension/internal/cdr-input.cpp
+++ b/src/extension/internal/cdr-input.cpp
@@ -164,7 +164,7 @@ CdrImportDialog::CdrImportDialog(const std::vector<RVNGString> &vec)
      _setPreviewPage();
 }
 
-CdrImportDialog::~CdrImportDialog() {}
+CdrImportDialog::~CdrImportDialog() = default;
 
 bool CdrImportDialog::showDialog()
 {
diff --git a/src/extension/internal/cdr-input.h b/src/extension/internal/cdr-input.h
index 9b7ef75db..25b9e8425 100644
--- a/src/extension/internal/cdr-input.h
+++ b/src/extension/internal/cdr-input.h
@@ -28,7 +28,7 @@ namespace Extension {
 namespace Internal {
 
 class CdrInput : public Inkscape::Extension::Implementation::Implementation {
-     CdrInput () { };
+     CdrInput () = default;;
 public:
      SPDocument *open( Inkscape::Extension::Input *mod,
                        const gchar *uri ) override;
diff --git a/src/extension/internal/metafile-inout.h b/src/extension/internal/metafile-inout.h
index f8562839e..d3e870a25 100644
--- a/src/extension/internal/metafile-inout.h
+++ b/src/extension/internal/metafile-inout.h
@@ -62,7 +62,7 @@ class Metafile
     : public Inkscape::Extension::Implementation::Implementation
 {
 public:
-    Metafile() {}
+    Metafile() = default;
     ~Metafile() override;
 
 protected:
diff --git a/src/extension/internal/metafile-print.h b/src/extension/internal/metafile-print.h
index 156610657..6209d3f73 100644
--- a/src/extension/internal/metafile-print.h
+++ b/src/extension/internal/metafile-print.h
@@ -48,7 +48,7 @@ class PrintMetafile
     : public Inkscape::Extension::Implementation::Implementation
 {
 public:
-    PrintMetafile() {}
+    PrintMetafile() = default;
     ~PrintMetafile() override;
 
     bool textToPath (Inkscape::Extension::Print * ext) override;
diff --git a/src/extension/internal/odf.h b/src/extension/internal/odf.h
index 1c1d7c6f6..e92bc1249 100644
--- a/src/extension/internal/odf.h
+++ b/src/extension/internal/odf.h
@@ -91,7 +91,7 @@ public:
         }
 
     virtual ~StyleInfo()
-        {}
+        = default;
 
     //used for eliminating duplicates in the styleTable
     bool equals(const StyleInfo &other)
@@ -131,7 +131,7 @@ public:
     GradientStop(unsigned long rgbArg, double opacityArg)
         { rgb = rgbArg; opacity = opacityArg; }
     virtual ~GradientStop()
-        {}
+        = default;
     GradientStop(const GradientStop &other)
         {  assign(other); }
     virtual GradientStop& operator=(const GradientStop &other)
@@ -200,7 +200,7 @@ public:
         }
 
     virtual ~GradientInfo()
-        {}
+        = default;
 
     //used for eliminating duplicates in the styleTable
     bool equals(const GradientInfo &other)
diff --git a/src/extension/internal/pdfinput/pdf-input.h b/src/extension/internal/pdfinput/pdf-input.h
index ae820946d..4cf1d01a0 100644
--- a/src/extension/internal/pdfinput/pdf-input.h
+++ b/src/extension/internal/pdfinput/pdf-input.h
@@ -132,7 +132,7 @@ private:
 
     
 class PdfInput: public Inkscape::Extension::Implementation::Implementation {
-    PdfInput () { };
+    PdfInput () = default;;
 public:
     SPDocument *open( Inkscape::Extension::Input *mod,
                                 const gchar *uri ) override;
diff --git a/src/extension/internal/pdfinput/svg-builder.cpp b/src/extension/internal/pdfinput/svg-builder.cpp
index 59481b9eb..c8e24a5e1 100644
--- a/src/extension/internal/pdfinput/svg-builder.cpp
+++ b/src/extension/internal/pdfinput/svg-builder.cpp
@@ -105,8 +105,7 @@ SvgBuilder::SvgBuilder(SvgBuilder *parent, Inkscape::XML::Node *root) {
     _init();
 }
 
-SvgBuilder::~SvgBuilder() {
-}
+SvgBuilder::~SvgBuilder() = default;
 
 void SvgBuilder::_init() {
     _font_style = nullptr;
diff --git a/src/extension/internal/pov-out.h b/src/extension/internal/pov-out.h
index 75ae0460d..f38027a4b 100644
--- a/src/extension/internal/pov-out.h
+++ b/src/extension/internal/pov-out.h
@@ -139,13 +139,13 @@ private:
     {
     public:
         PovShapeInfo()
-            {}
+            = default;
         PovShapeInfo(const PovShapeInfo &other)
             { assign(other); }
         PovShapeInfo& operator=(const PovShapeInfo &other)
             { assign(other); return *this; }
         virtual ~PovShapeInfo()
-            {}
+            = default;
         String id;
         String color;
 
diff --git a/src/extension/internal/vsd-input.cpp b/src/extension/internal/vsd-input.cpp
index 765e67648..e4982a02c 100644
--- a/src/extension/internal/vsd-input.cpp
+++ b/src/extension/internal/vsd-input.cpp
@@ -164,7 +164,7 @@ VsdImportDialog::VsdImportDialog(const std::vector<RVNGString> &vec)
      _setPreviewPage();
 }
 
-VsdImportDialog::~VsdImportDialog() {}
+VsdImportDialog::~VsdImportDialog() = default;
 
 bool VsdImportDialog::showDialog()
 {
diff --git a/src/extension/internal/vsd-input.h b/src/extension/internal/vsd-input.h
index 2cc20747a..5d8daddb2 100644
--- a/src/extension/internal/vsd-input.h
+++ b/src/extension/internal/vsd-input.h
@@ -28,7 +28,7 @@ namespace Extension {
 namespace Internal {
 
 class VsdInput : public Inkscape::Extension::Implementation::Implementation {
-     VsdInput () { };
+     VsdInput () = default;;
 public:
      SPDocument *open( Inkscape::Extension::Input *mod,
                        const gchar *uri ) override;
diff --git a/src/extension/internal/wpg-input.h b/src/extension/internal/wpg-input.h
index 4ee041eb9..92404a9e7 100644
--- a/src/extension/internal/wpg-input.h
+++ b/src/extension/internal/wpg-input.h
@@ -22,7 +22,7 @@ namespace Extension {
 namespace Internal {
 
 class WpgInput : public Inkscape::Extension::Implementation::Implementation {
-    WpgInput () { };
+    WpgInput () = default;;
 public:
     SPDocument *open( Inkscape::Extension::Input *mod,
                                 const gchar *uri ) override;
diff --git a/src/extension/param/radiobutton.cpp b/src/extension/param/radiobutton.cpp
index 45869378a..4a479687b 100644
--- a/src/extension/param/radiobutton.cpp
+++ b/src/extension/param/radiobutton.cpp
@@ -237,7 +237,7 @@ public:
     {
         this->signal_changed().connect(sigc::mem_fun(this, &ComboWdg::changed));
     }
-    ~ComboWdg() override {}
+    ~ComboWdg() override = default;
     void changed (void);
 };
 
diff --git a/src/extension/patheffect.cpp b/src/extension/patheffect.cpp
index 82d75dcb3..34c2be075 100644
--- a/src/extension/patheffect.cpp
+++ b/src/extension/patheffect.cpp
@@ -24,9 +24,7 @@ PathEffect::PathEffect (Inkscape::XML::Node * in_repr, Implementation::Implement
 }
 
 PathEffect::~PathEffect (void)
-{
-
-}
+= default;
 
 void
 PathEffect::processPath (SPDocument * /*doc*/, Inkscape::XML::Node * /*path*/, Inkscape::XML::Node * /*def*/)
diff --git a/src/extension/print.cpp b/src/extension/print.cpp
index ad9836a66..7337f77fb 100644
--- a/src/extension/print.cpp
+++ b/src/extension/print.cpp
@@ -25,7 +25,7 @@ Print::Print (Inkscape::XML::Node *in_repr, Implementation::Implementation *in_i
 }
 
 Print::~Print ()
-{}
+= default;
 
 bool
 Print::check ()