[Root_list] problem compiling

[Jixie Zhang]

Carlos,

This line seems not right.
"RTPCTree ->SetBranchAddress("X", &X[ndim]);"



On Wed, May 4, 2016 at 8:09 AM, Beni Zihlmann <zihlmann at jlab.org> wrote:

> I just realized:
>
> RTPCTree ->SetBranchAddress("X", &X[ndim]);
>
> try
>
> RTPCTree->SetBranchAddress("X", X);
>
> X is defined as array in the header file so X is already the pointer to
> the first
> element in the array.
>
> cheers,
> Beni
>
>
> On 05/03/2016 10:16 PM, Carlos Ayerbe wrote:
>
>> Dear JLab-rooters
>>
>> I need some help to understand what is the problem reading the variables
>> from a root file through compiled code.
>>
>> In the folder below is the code with the rootfile I'm using. In principle
>> it compiles well, it runs without any apparent issue, but the values are
>> incorrect.
>>
>> https://drive.google.com/open?id=0BzMLOCd9ntumQWtha25aVHlicUk
>>
>> The content of the rootfile is only space variables, the event number and
>> the number of hits in such event.
>>
>> You can see with a simple scan or show the content of the rootfile, and
>> the code skips the X value and writes to the Y value, and Y to Z. I started
>> setting the definition of the branch variables in the header, but I found
>> that makes the event values behave weird, so I set it as global variable.
>> With the space variables (X, Y, Z), there is no easy solution and they are
>> the ones making problems. They doesn't work properly in the header neither
>> as global, but if I set them inside the function the code behaves even more
>> weird. There is a loop where I get the entries, with the variables defined
>> in the function (e.g. after the TTree declaration), the index enters the
>> GetEntry method as normal, but after it the index goes crazy.
>>
>> I compared this case with other examples I have and I don't see why this
>> happen. Is because the use of the header?
>>
>> Thank you for your time
>>
>> Carlos Ayerbe
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>>
>
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-- 
With Best Regards,
Jixie Zhang
757-269-7735
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