Revert "Revert "Implement TH1::Clone""

This reverts commit 9b16f29.
Dr15Jones · Oct 22, 2014 · f27274a · f27274a
1 parent 04ffc30
commit f27274a
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diff --git a/hist/hist/inc/TH1.h b/hist/hist/inc/TH1.h
@@ -187,6 +187,7 @@ class TH1 : public TNamed, public TAttLine, public TAttFill, public TAttMarker {
 
    virtual Double_t Chisquare(TF1 * f1, Option_t *option = "") const;
    virtual Double_t ComputeIntegral(Bool_t onlyPositive = false);
+   TObject*         Clone(const char* newname=0) const;
    virtual void     Copy(TObject &hnew) const;
    virtual void     DirectoryAutoAdd(TDirectory *);
    virtual Int_t    DistancetoPrimitive(Int_t px, Int_t py);

diff --git a/hist/hist/src/TH1.cxx b/hist/hist/src/TH1.cxx
@@ -2485,6 +2485,25 @@ void TH1::Copy(TObject &obj) const
 
 }
 
+//______________________________________________________________________________
+TObject* TH1::Clone(const char* newname) const
+{
+  TH1* obj = (TH1*)IsA()->GetNew()(0);
+  Copy(*obj);
+
+  //Now handle the parts that Copy doesn't do
+  if(fFunctions) {
+    if(not obj->fFunctions) {
+      obj->fFunctions = new TList;
+    }
+    fFunctions->Copy( *(obj->fFunctions) );
+  }
+  if(newname and strlen(newname) ) {
+    obj->SetName(newname);
+  }
+  return obj;
+}
+
 //______________________________________________________________________________
 void TH1::DirectoryAutoAdd(TDirectory *dir)
 {