12 #include <tracking/trackFindingCDC/utilities/FunctorTag.h>
22 explicit operator TrackFindingCDC::FunctorTag();
33 struct NumberOfHitsGetter {
35 explicit operator TrackFindingCDC::FunctorTag();
41 return t->getHits().size();
48 explicit operator TrackFindingCDC::FunctorTag();
51 template<
class T,
class SFINAE = decltype(&T::getArcLength)>
54 return t.getArcLength();