Hi Gora,
You make a good point. I have modified TObject and TClass as you propose
in the development version in CVS.
Thanks for this suggestion.
Rene Brun
Gora Mohanty wrote:
>
> Hello,
> I am having a problem with using constant data members in classes that are
> then compiled into ROOT. The problem seems to be that the ShowMembers()
> function calls TMemberInspector::Inspect() with a pointer to the constant data
> member, while TMemberInspector::Inspect() is expecting a void* pointer, i.e.,
> a const void* cannot be converted into a void*. I have worked around this
> problem by overloading TMemberInspector::Inspect() with a version that does
> take a const void*, viz.,
> virtual void Inspect(TClass *cl, const char *parent, const char *name,
> const void *addr) = 0;
>
> I also had to modify TObject.cxx and TClass.cxx, that define classes deriving
> from TMemberInspector, so as to provide a definition for this pure virtual
> function. I have done this by simply calling the non-const version of Inspect
> with a const_cast, e.g., in TObject.cxx to the class TDumpMembers I have added
> void Inspect(TClass *cl, const char *parent, const char *name,
> const void *addr) {
> return Inspect( cl, parent, name, const_cast<void*>(addr) ); }
> Is there any problem in doing this? If not, could some such modification be
> done in future releases, so that I do not have to do this each time? If it
> matters, I am using ROOT version 3.01.06 compiled with gcc3.0 on a SuSE Linux
> 7.1 box, but have also had the same problem with older versions of ROOT.
>
> Regards,
> Gora
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