[ROOT] TPair in 3.04/02

From: Edward Chen (edward@SLAC.stanford.edu)
Date: Mon Aug 18 2003 - 07:49:41 MEST 

Hi - I'm using ROOT 3.04/02.  I'd like not to have to migrate to 3.05/07
if necessary.

First - when I search on TPair on the ROOT website, nothing pops up,
either using the Quick Search or the search of the reference guide.

Second, I've created a TMap, and I'm having problems accessing an object
in it:

{

 TObjString * myR2Name = new TObjString("R2");
 edCut2D * myR2Cut = new edCut2D(kTRUE,kFALSE,kFALSE,-1000,
                                 0.268724,kTRUE);

 TMap * myCutMap = new TMap();
 myCutMap.Add(myR2Name,myR2Cut);

}

root [0] myCutMap->Print()
Key:   TObjString = R2
Value: OBJ: edCut2D     edCut2D

Now - I've tried the following:

root [1] edCut2D *myCut2 = (edCut2D *)myCutMap->GetValue("R2")
Error: Can't call TMap::GetValue("R2") in current scope
FILE:/tmp/GNJ4rU_cint LINE:1
Possible candidates are...
filename       line:size busy function type and name  (in TMap)
(compiled)        0:0    0 public: TObject* GetValue(const TObject* key)
const;
filename       line:size busy function type and name  (in TCollection)
filename       line:size busy function type and name  (in TObject)
Error: Symbol myCutMap is not defined in current scope
FILE:/tmp/GNJ4rU_cint LINE:1
Error: Failed to evaluate myCutMap->GetValue("R2")Possible candidates
are...
filename       line:size busy function type and name
*** Interpreter error recovered ***

However, I can do the following successfully:

root [2] TObject *myObject = myCutMap->FindObject("R2")

but I'm not sure how to get the value out.

Is this possible with 3.04/02?

Thanks for any help.

-Ed

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