Modernize code

kcalc_button.h

@@ -24,9 +24,7 @@ enum ButtonModeFlags { ModeNormal = 0, ModeShift = 1, ModeHyperbolic = 2 };
 class ButtonMode
 {
 public:
-    ButtonMode()
-    {
-    }
+    ButtonMode() = default;
 
     ButtonMode(const QString &label, const QString &tooltip)
         : label(label)

kcalcdisplay.cpp

@@ -59,9 +59,7 @@ KCalcDisplay::KCalcDisplay(QWidget *parent)
 // Name: ~KCalcDisplay
 // Desc: destructor
 //------------------------------------------------------------------------------
-KCalcDisplay::~KCalcDisplay()
-{
-}
+KCalcDisplay::~KCalcDisplay() = default;
 
 //------------------------------------------------------------------------------
 // Name: changeSettings

kcalchistory.cpp

@@ -22,9 +22,7 @@ KCalcHistory::KCalcHistory(QWidget *parent)
 // Name: KCalcHistory
 // Desc: destructor
 //------------------------------------------------------------------------------
-KCalcHistory::~KCalcHistory()
-{
-}
+KCalcHistory::~KCalcHistory() = default;
 
 //------------------------------------------------------------------------------
 // Name: addToHistory

knumber/knumber_error.cpp

@@ -47,9 +47,7 @@ knumber_error::knumber_error()
 //------------------------------------------------------------------------------
 // Name:
 //------------------------------------------------------------------------------
-knumber_error::~knumber_error()
-{
-}
+knumber_error::~knumber_error() = default;
 
 //------------------------------------------------------------------------------
 // Name:

knumber/knumber_float.cpp

@@ -9,7 +9,7 @@
 #include "knumber_fraction.h"
 #include "knumber_integer.h"
 #include <QScopedArrayPointer>
-#include <math.h>
+#include <cmath>
 
 #ifdef _MSC_VER
 double log2(double x)

stats.cpp

@@ -11,17 +11,13 @@
 // Name: KStats
 // Desc: constructor
 //------------------------------------------------------------------------------
-KStats::KStats()
-{
-}
+KStats::KStats() = default;
 
 //------------------------------------------------------------------------------
 // Name: ~KStats
 // Desc: destructor
 //------------------------------------------------------------------------------
-KStats::~KStats()
-{
-}
+KStats::~KStats() = default;
 
 //------------------------------------------------------------------------------
 // Name: clearAll