Re: No dictionaries for std::complex

"(and not for any of its data member's type to avoid dictionary duplication)."

I understand now why there is no std::complex dictionary in my lib.

Thanks for the useful help,
Marcelo

2012/5/21 Philippe Canal <pcanal_at_fnal.gov>

> Hi,
>
>
> > does its dictionary go into dictionary.cxx?
>
> Yes, it does. The command line:
>
>
> rootcint -f dictionary.cxx -c TAlm.cxx
>
> request only the dictionary for TAlm (and not for any of its data member's
> type to avoid dictionary duplication).
>
>
> > I make no use of TApplication,
>
> Thus I am guessing the autoloader is not enabled and thus you need to load
> the dictionary for (std::complex) explicitly.
>
> Cheers,
> Philippe.
>
>
> On 5/21/12 2:02 PM, Marcelo Zimbres wrote:
>
> Hi Phillipe,
>
> I make no use of TApplication, it is just a main function linked to a
> library of mine and to root libraries. Just out of curiosity, when I use
>
> rootcint -f dictionary.cxx -c TAlm.cxx
>
> to generate dictionaries for a class TAlm, which has a data member
> std::complex. does its dictionary go into dictionary.cxx? If not, where are
> the dictionaries loaded from?
>
> Cheers,
> Marcelo
>
> 2012/5/21 Philippe Canal <pcanal_at_fnal.gov>
>
>> Hi,
>>
>> Humm ... yes if the autoloader is properly initialized it should load the
>> complex dictionary automatically.
>> Did you create a TApplication object in your standalone example?
>>
>> Cheers,
>> Philippe.
>>
>>
>> On 5/21/12 11:27 AM, Marcelo Zimbres wrote:
>>
>> Thanks Philippe,
>>
>> it seems then, that I have the right implementation, but anyway, I
>> thought this was fixed due to the following post:
>> http://root.cern.ch/phpBB3/viewtopic.php?f=5&t=9618, where you mention:
>>
>> "Hi,
>>
>> The ProcessLine call is only needed to work around a bug in the library
>> autoloading setting affecting only the std::complex classes (This is fixed
>> in the trunk, revision 36617 and up).
>>
>> Cheers,
>> Philippe. "
>>
>> Maybe I misunderstood it? It is not clear to me when should I manually
>> enforce a dictionary should be loaded.
>>
>> Cheers,
>> Marcelo
>>
>>
>>
>> 2012/5/21 Philippe Canal <pcanal_at_fnal.gov>
>>
>>> > but if I try the same on a standalone application,
>>> > I get the error:
>>>
>>> In standalone application, you need to more configuration 'by hand'.
>>> In particular
>>> you may have to load more dictionary explicitly. For example:
>>>
>>>
>>> gROOT->ProcessLine("#include <complex>");
>>>
>>> will force the loading of the pre-canned std::complex dictionary.
>>>
>>> Cheers,
>>> Philippe.
>>>
>>>
>>> On 5/19/12 9:54 PM, Marcelo Zimbres wrote:
>>>
>>> Hi Root experts,
>>>
>>> I have a class which inherits from TNamed, with a std::complex<double>
>>> data member.
>>> When I compile it on Cint (.L TAlm.cxx+) and try to write an object of
>>> this class to
>>> a root file, everything goes fine, but if I try the same on a standalone
>>> application,
>>> I get the error:
>>>
>>> Error in <TAlm::fAlm streamer>: Missing the TClass object for
>>> complex<double>
>>>
>>> even though, my executable is linked to the library where the dictionary
>>> for TAlm should be
>>> (I use rootcint to generate dictionaries in this case and put them in
>>> the library). To fix
>>> the problem I am adding
>>>
>>> gROOT->ProcessLine("#include <complex>");
>>>
>>> in the main function, but I suppose this is not the right way to do it?
>>> Why my program does find the dictionary for std::complex?
>>>
>>> Thanks in advance,
>>> Marcelo
>>>
>>>
>>
>
Received on Mon May 21 2012 - 21:20:45 CEST