Re: Copy constructor of TObjArray

Thank you! I missed special meaning of the <VersionNumber>=0

On 04/21/2010 12:17 PM, Rene Brun wrote:
> In MyClass.h replace
> ClassDef(MyClass,0)
> by
> ClassDef(MyClass,1)
>
>
> Rene Brun
>
> Vassili Maroussov wrote:
>> Dear Rene,
>>
>> for some reason it doesn't work for standalone executable, please
>> find example in the attachment. The "testclone" output shows that
>> objects in the collection aren't copied both for the Clone() (T2) and
>> the copy constructor (T3) :
>>
>> [vmarouss_at_Ezhik-HDX18 TestClones]$ ./testclone
>> Entry #0
>> T1: (MyClass): X=0.5 Y=-0.5
>> T2: (MyClass): X=0 Y=0
>> T3: (MyClass): X=0 Y=0
>> Entry #1
>> T1: (MyClass): X=1.5 Y=-1.5
>> T2: (MyClass): X=0 Y=0
>> T3: (MyClass): X=0 Y=0
>> Entry #2
>> T1: (MyClass): X=2.5 Y=-2.5
>> T2: (MyClass): X=0 Y=0
>> T3: (MyClass): X=0 Y=0
>>
>> OS: Fedora12, ROOT version 5.25.03, gcc version 4.4.3 20100127 (Red
>> Hat 4.4.3-4) (GCC) Target: x86_64-redhat-linux
>>
>> Regards,
>>
>> Vassili
>>
>> On 04/20/2010 02:53 PM, Rene Brun wrote:
>>> Hi Vassili,
>>>
>>> If you want to make a deep copy of all the objects in the collection
>>> for a TObjArray *a (or TClonesArray), do
>>> TObjArray *b = (TObjArray*)a->Clone();
>>>
>>> Rene Brun
>>>
>>> Vassili Maroussov wrote:
>>>> Dear ROOTers,
>>>>
>>>> It seems the copy constructor of TObjArray and TClonesArray copies
>>>> only the pointers' array but doesn't create copies of objects in
>>>> collection, correct?
>>>>
>>>> Regards,
>>>>
>>>> Vassili
>>>>
>>>
>>
>
Received on Wed Apr 21 2010 - 12:24:46 CEST