Functors that support for multiple argument

While testing WeightedRelTableAlg with Moore!1461 (closed), I got a compile time error from the static_assert( sizeof...( Data ) == 1 ) in Core.h (https://gitlab.cern.ch/lhcb/Rec/-/blob/master/Phys/FunctorCore/include/Functors/Core.h#L194)

I suppose this is happening when invoking a functor configured by two arguments ( in this specific case Particle, Particle)
Is it necessary to include also the case when a functor is applied to > 1 argument or is there another way to approach to this issue?

What do you think?

FYI: @graven, @chasse, @poluekt, @mvesteri, @gligorov

added RTA label

assigned to @tfulghes

changed the description

@tfulghes if not too much work, any chance you could provide a small reproducer?

What's the Functor expression that triggers this error?

@chasse thanks for the quick reply! I've uploaded also the option file for running a minimal example on minimum bias on Moore!1461 (closed) and then I execute it with ./run gaudirun.py Hlt/Hlt2Conf/options/hlt2_generic_line_example.py in the Moore directory.

great! Will have a look at this after lunch ;)

Just a quick update, I've reproduced the error and am looking into it. Unfortunately, seems to require a bit more debugging. Will post here with updates.

Please tell me if I could help somehow

Hi @tfulghes, I've created !2977 (merged) with a few fixes.

This already adds a few fixes. But the SUMCONE cut still needs to be fixed before we can run the isolation_mumu_line

Thanks a lot @chasse for having a look at it!

closed