Common< AFunctor > Struct Template Reference

Adapter of a category function to find the common category of several objects. More...

#include <Common.h>

Public Member Functions
template<class Ts , class Category = decltype(m_functor(*std::declval<Ts>().begin()))>
boost::optional< Category >	operator() (const Ts &ts) const
	Returns the common category value of a range. More...
template<class T1 , class T2 , class Category = decltype(m_functor(std::declval<T1>()))>
boost::optional< Category >	operator() (const T1 &t1, const T2 &t2) const
	Returns the common category of two values. More...

Private Attributes
AFunctor	m_functor
	Memory for the nested functor.

Detailed Description

template<class AFunctor>
struct Belle2::TrackFindingCDC::Common< AFunctor >

Adapter of a category function to find the common category of several objects.

Definition at line 21 of file Common.h.

Member Function Documentation

operator()() [1/2]

boost::optional<Category> operator() ( const T1 &  t1, const T2 &  t2  ) const

inline

Returns the common category of two values.

In case the category value differ between the values return empty optional

Definition at line 52 of file Common.h.

      {
        Category cat1 = m_functor(t1);
        Category cat2 = m_functor(t2);
        if (cat1 == cat2) return {cat1};
        return {};
      }

operator()() [2/2]

boost::optional<Category> operator() ( const Ts &  ts ) const

inline

Returns the common category value of a range.

In case the category value differ between the values return empty optional.

Definition at line 34 of file Common.h.

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The documentation for this struct was generated from the following file:

• tracking/trackFindingCDC/utilities/include/Common.h