[test] fix some override and deprecation warnings

* [test] fix some override and deprecation warnings

See https://github.com/root-project/root/pull/20501/files

* Apply suggestions from code review

Co-authored-by: Philippe Canal <[email protected]>

---------

Co-authored-by: Philippe Canal <[email protected]>

Author: ferdymercury

roottest/root/io/newstl/TestHelpers.h

@@ -72,7 +72,7 @@ class HelperDerived : public HelperClassDef {
    HelperDerived() : f(-1) {};
    explicit HelperDerived(int v,double d, float finput) : HelperClassDef(v,d),f(finput) {};
 
-   virtual bool IsEquiv(const Helper &rhs) const {
+   bool IsEquiv(const Helper &rhs) const override {
       bool result = Helper::IsEquiv(rhs);
       if (result) {
          const HelperDerived *drhs = dynamic_cast<const HelperDerived*>(&rhs);
@@ -82,7 +82,7 @@ class HelperDerived : public HelperClassDef {
       return result;
    }
 
-   virtual const char* CompMsg(const Helper& copy) const {
+   const char* CompMsg(const Helper& copy) const override {
       const HelperDerived *drhs = dynamic_cast<const HelperDerived*>(&copy);
       if (drhs==0) {
          TString msg = Helper::CompMsg(copy);
@@ -113,7 +113,7 @@ class THelperDerived : public THelper {
    THelperDerived() : f(-1) {};
    explicit THelperDerived(int v,double d, float finput) : THelper(v,d),f(finput) {};
 
-   virtual bool IsEquiv(const Helper &rhs) const {
+   bool IsEquiv(const Helper &rhs) const override {
       bool result = Helper::IsEquiv(rhs);
       if (result) {
          const THelperDerived *drhs = dynamic_cast<const THelperDerived*>(&rhs);
@@ -123,7 +123,7 @@ class THelperDerived : public THelper {
       return true;
    }
 
-   virtual const char* CompMsg(const Helper& copy) const {
+   const char* CompMsg(const Helper& copy) const override {
       const THelperDerived *drhs = dynamic_cast<const THelperDerived*>(&copy);
       if (drhs==0) {
          TString msg = THelper::CompMsg(copy);

roottest/root/treeformula/parse/ClassDefinitions.C

@@ -10,6 +10,7 @@ class QRawPulseR : public TObject
 		QRawPulseR();
 		~QRawPulseR() override;
 		const QRawPulseR& operator=(const QRawPulseR& P);
+		QRawPulseR(const QRawPulseR& P) = default;
 		void SetDataHist(const int, double*);
 		void SetChannel(const Int_t chan) {fChannel = chan;}
 
@@ -59,6 +60,7 @@ class QRawTriggerPulseR : public QRawPulseR
 		QRawTriggerPulseR();
 		~QRawTriggerPulseR() override;
 		const QRawTriggerPulseR& operator=(const QRawTriggerPulseR& P);
+		QRawTriggerPulseR(const QRawTriggerPulseR& P) = default;
 		Int_t GetTriggerPosition() const { return ftrigger_position; }
 
 	private:
@@ -101,7 +103,7 @@ class QRawEventR : public TObject
 		QRawPulseR fraw_pulse;
 		QRawTriggerPulseR fraw_trigger_pulse;
 
-	ClassDef (QRawEventR, 1)
+	ClassDefOverride (QRawEventR, 1)
 };