Hi,
I do not see any problem in reading your file with 4.00/04
Did you generate the ROOT binaries yourself? or imported one of the binaries
on our web site? (we do not have yet a binary for Fedora Core 1)
Rene Brun
Hyeongryul So wrote:
>
> Hi,
>
> I have been using ROOT on my Linux box (Fedora Core 1). After upgrading my
> installation of ROOT from 4.00/03 to 4.00/04, I received this warning
> messages while reading files generated by the previous versions of ROOT.
>
> root [0] TFile* file = new TFile("check.root", "read")
> Warning in <TStreamerInfo::BuildCheck>:
> The StreamerInfo of class TAttLine read from file check.root
> has the same version (=1) as the active class but a different checksum.
> You should update the version to ClassDef(TAttLine,2).
> Do not try to write objects with the current class definition,
> the files will not be readable.
>
> Warning in <TStreamerInfo::BuildCheck>:
> The StreamerInfo of class TAttMarker read from file check.root
> has the same version (=1) as the active class but a different checksum.
> You should update the version to ClassDef(TAttMarker,2).
> Do not try to write objects with the current class definition,
> the files will not be readable.
>
> Attached is the sample data file which contains only one histogram and was
> generated by ROOT 4.00/03. It seems that the change in class TCint is
> responsible for the message.
>
> 2004-04-27 15:15 rdm
> * meta/: inc/TCint.h, src/TCint.cxx:
> use new Cint autoloading interface (G__set_class_autoloading_table()) and
> callback mechanism to load the needed library (TCint::AutoLoadCallback()).
>
> It worries me that the new mechanism might not be backward-compatible; is it
> safe to use ROOT 4.00/04 with data files generated by older version of ROOT?
>
> Thanks,
> H. So.
>
> --------------------------------------------------------------------------------
> Name: check.root
> check.root Type: unspecified type (application/octet-stream)
> Encoding: base64
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