Dear Rene
Thank you, now I understand. I had the class definition:
class XSelector: public XAlgorithm {
protected:
==> Option_t *fOption;
public:
XSelector();
XSelector(const char *name, const char *type);
virtual ~XSelector();
==> void SetOption(Option_t *opt) {fOption = opt;}
};
Now I have changed the type to: TString fOption;
and everything works.
Best regards
Christian
Rene Brun wrote:
> Hi Christian,
>
> The fact that your system works with a static TString goes in the
> direction of my remark in my previous mail. I have the impression that
> in your function you store a pointer to the string (instead of storing
> a pointer to a copy of the string). When the TString goes out of scope
> your pointer becomes a dangling pointer and you get the typical segm.
> violation.
>
> I cannot tell you more without having a 20 lines program reproducing
> your problem, but I hope that my comment is sufficient for you to make
> further investigations.
>
> Rene
>
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