Re: [ROOT] TGraph::GetFunction() problem.

From: Rene Brun (Rene.Brun@cern.ch)
Date: Tue May 30 2000 - 12:10:11 MEST


Hi Marco,
This problem had already been reported by Damon Spayde and fixed in our
devlopment version.

Rene Brun

Marco van Leeuwen wrote:
> 
> Hi,
> 
> TGraph::GetFunction doesn't return the proper pointer to a function.
> Although I'm using Root 2.23/12, I think the bug is still present:
> 
> TF1 *TGraph::GetFunction(const char *name)
> {
> //*-*-*-*-*Return pointer to function with name*-*-*-*-*-*-*-*-*-*-*-*-*
> //*-*      ===================================
> //
> // Functions such as TGraph::Fit store the fitted function in the list of
> // functions of this graph.
> 
>    if (fFunctions) return 0;
>    return (TF1*)fFunctions->FindObject(name);
> }
> 
> Shouldn't the first line be:
> 
> if (!fFunctions) return 0;
> 
> ????
> 
> Could you please change this? (In the mean time, it is easy to work
> around, of course.)
> 
> Kind regards,
> 
> Marco van Leeuwen.



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