RE: Problem with reading TTrees on Windows

Hello,

Interestingly, that works fine for me too. Can you think of any reasons why this should work when it's interpreted but not when it's compiled?

Looks like it's probably a local issue anyway. Thanks for the sanity check!

Regards,

Mike

-----Original Message-----
From: Rene Brun [mailto:Rene.Brun_at_cern.ch] Sent: 14 September 2009 16:48
To: Lynch, Michael (STFC,RAL,PPD)
Cc: roottalk_at_root.cern.ch
Subject: Re: [ROOT] Problem with reading TTrees on Windows

Mike,

I do not see any problem with your setup on Windows (using VC++7.1). Could you simply replace in TTreeTestFloat.cpp the statement

    int main( int argc, char** argv )
by

   int TTreeTestFloat()
and within a root session do
  root > .x TTreeTestFloat.cpp

Rene

Lynch, Michael (STFC,RAL,PPD) wrote:
> My apologies. Here they are.
>
> Mike
>
> -----Original Message-----
> From: Rene Brun [mailto:Rene.Brun_at_cern.ch]
> Sent: 14 September 2009 15:21
> To: Lynch, Michael (STFC,RAL,PPD)
> Cc: roottalk_at_root.cern.ch
> Subject: Re: [ROOT] Problem with reading TTrees on Windows
>
> You forgot to post your data files TTreeTestFloat.root and
> TTreeTestFloat.txt
>
> Rene Brun
>
> Lynch, Michael (STFC,RAL,PPD) wrote:
>
>> Hello,
>>
>> I'm running ROOT v5.25/01 on Windows XP SP3, compiled with Microsoft
>>
> C++
>
>> v15.00.30729.01.
>>
>> I'm trying to test the output of a library I've been working on with
>>
> the
>
>> attached program. Test events are generated and stored in both an
>>
> ASCII
>
>> text file and a ROOT file. This is meant to compare them, make sure
>>
> they
>
>> are the same to within a certain tolerance and output any
>>
> discrepancies.
>
>> It works perfectly on SL4.4, GCC 3.4.6 and ROOT v5.25/01. However, on
>> Windows, I get this sort of output:
>>
>> Error in <TFile::WriteTObject>: Directory TTreeTestFloat.root is not
>> writable
>> Mismatch found in event 288
>> Field 0 Field 1 Field 2
>> 6.07622e-039 1.74468e-039 6.07607e-039
>> 0.860207 -0.647697 -0.418429
>> Error in <TFile::WriteTObject>: Directory TTreeTestFloat.root is not
>> writable
>> Mismatch found in event 289
>> Field 0 Field 1 Field 2
>> 6.07622e-039 1.74468e-039 6.07607e-039
>> 0.0549127 -0.843825 1.54162
>> Error in <TFile::WriteTObject>: Directory TTreeTestFloat.root is not
>> writable
>> Mismatch found in event 290
>> Field 0 Field 1 Field 2
>> 6.07622e-039 1.74468e-039 6.07607e-039
>> 1.16317 1.33839 0.832338
>> Error in <TFile::WriteTObject>: Directory TTreeTestFloat.root is not
>> writable
>> Mismatch found in event 291
>> Field 0 Field 1 Field 2
>> 6.07622e-039 1.74468e-039 6.07607e-039
>> 0.283794 1.53485 -1.88566
>> Error in <TFile::WriteTObject>: Directory TTreeTestFloat.root is not
>> writable
>> Mismatch found in event 292
>> Field 0 Field 1 Field 2
>> 6.07622e-039 1.74468e-039 6.07607e-039
>> 0.341339 -1.34976 -0.273247
>> Error in <TFile::WriteTObject>: Directory TTreeTestFloat.root is not
>> writable
>> Mismatch found in event 293
>> Field 0 Field 1 Field 2
>> 6.07622e-039 1.74468e-039 6.07607e-039
>> 0.170947 -0.716357 -0.799599
>> Error in <TFile::WriteTObject>: Directory TTreeTestFloat.root is not
>> writable
>> Mismatch found in event 294
>> Field 0 Field 1 Field 2
>> 6.07622e-039 1.74468e-039 6.07607e-039
>> -0.633709 0.910566 -0.354637
>> Error in <TFile::WriteTObject>: Directory TTreeTestFloat.root is not
>> writable
>>
>> Here the first line is the data read from the ROOT file, and the
>>
> second
>
>> from the text file. All the ROOT events are recorded as the same,
even
>> though they are not (if I view the actual ROOT file in a browser, the
>> data follow the correct distribution). There are also all the errors,
>> which do not occur on Linux either.
>>
>> Is there any reason for this behaviour?
>>
>> Regards,
>>
>> Mike
>>
>>
>>
>
>
>

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