RE: I/O problem between 4.04/02 and 4.00/08

hi all rooters,
 i wanted to go to from 4.00.08 (wich is very nice and stable, btw) to  4.02.00 (or newer) this weekend. any backward-compatibility problems  known so far? probably not, but stil an important question for me, since  i do the upgrade on about 15 machines.

cheers,
 martin

On Fri, 3 Jun 2005, Philippe Canal wrote:

> Hi,
>
> Indeed ROOT 4.00/08 is not always able to read file produced by
> the newer version ROOT 4.04/02. The issues includes better
> support for bool and support for autloading of references.
>
> Philippe.
>
> -----Original Message-----
> From: owner-roottalk_at_pcroot.cern.ch [mailto:owner-roottalk_at_pcroot.cern.ch]
> On Behalf Of Carlos Munoz Camacho
> Sent: Tuesday, May 31, 2005 12:30 PM
> To: roottalk_at_pcroot.cern.ch
> Subject: [ROOT] I/O problem between 4.04/02 and 4.00/08
>
>
> Hi,
>
> The ntuple attached was created with root 4.04/02 and linux. When
> trying to read it with root 4.00/08, it crashes as below. I guess
> "forward-compatibility" is not supported, but did so many changes in I/O
> took place between these two versions than the reading of an ntuple is not
> possible?
>
> Carlos
>
>
> root -b test.root
> *******************************************
> * *
> * W E L C O M E to R O O T *
> * *
> * Version 4.00/08 31 May 2005 *
> * *
> * You are welcome to visit our Web site *
> * http://root.cern.ch *
> * *
> *******************************************
>
> Compiled for linux with thread support.
>
> CINT/ROOT C/C++ Interpreter version 5.15.138, May 23 2004
> Type ? for help. Commands must be C++ statements.
> Enclose multiple statements between { }.
> root [0]
> Attaching file test.root as _file0...
> Warning in <TClass::TClass>: no dictionary for class TBranchRef is
> available
> Warning in <TClass::TClass>: no dictionary for class TRefTable is
> available
> root [1] ntup.Draw("v")
> Warning in <TExMap::Remove>: key 65536 not found at 146
> Warning in <TBuffer::CheckObject>: reference to object of unavailable
> class TObject, offset=65536 pointer will be 0
> Warning in <TExMap::Remove>: key 64 not found at 64
> Warning in <TBuffer::CheckObject>: reference to object of unavailable
> class TObject, offset=64 pointer will be 0
> Warning in <TExMap::Remove>: key 24064 not found at 423
> Warning in <TBuffer::CheckObject>: reference to object of unavailable
> class TObject, offset=24064 pointer will be 0
> Warning in <TExMap::Remove>: key 50331904 not found at 215
> Warning in <TBuffer::CheckObject>: reference to object of unavailable
> class TObject, offset=50331904 pointer will be 0
> Warning in <TExMap::Remove>: key 419072 not found at 73
> Warning in <TBuffer::CheckObject>: reference to object of unavailable
> class TObject, offset=419072 pointer will be 0
> Warning in <TExMap::Remove>: key 3 not found at 3
> Warning in <TBuffer::CheckObject>: reference to object of unavailable
> class TObject, offset=3 pointer will be 0
> Error in <TStreamerInfo::ReadBuffer>: The element TLeaf::fIsRange type 218
> (Bool_t) is not supported yet
>
> Error in <TStreamerInfo::ReadBuffer>: The element TLeaf::fIsUnsigned type
> 218 (Bool_t) is not supported yet
>
> Error in <TBuffer::CheckByteCount>: object of class TLeaf read too few
> bytes: 38 instead of 40
> Warning in <TExMap::Remove>: key 196609 not found at 439
> Warning in <TBuffer::CheckObject>: reference to object of unavailable
> class TObject, offset=196609 pointer will be 0
> Warning in <TExMap::Remove>: key 50331648 not found at 462
> Warning in <TBuffer::CheckObject>: reference to object of unavailable
> class TObject, offset=50331648 pointer will be 0
> Warning in <TExMap::Remove>: key 16777216 not found at 154
> Warning in <TBuffer::CheckObject>: reference to object of unavailable
> class TObject, offset=16777216 pointer will be 0
> Warning in <TExMap::Remove>: key 4194304 not found at 290
> Warning in <TBuffer::CheckObject>: reference to object of unavailable
> class TObject, offset=4194304 pointer will be 0
>
> etc....
>
>
Received on Fri Jun 03 2005 - 18:43:09 MEST