histo.h

Go to the documentation of this file.

// include guard
#ifndef AFF_HISTO_H_VERSION

#define AFF_HISTO_H_VERSION \
  "AFF_HISTO_H   V1.0   "


#include<aff/lib/collector.h>
#include<map>

namespace aff {

  namespace func {

    namespace util {

      template<class C>
        class Extracthisto {
          typedef typename C::Tcoc Tcont;
          typedef typename C::Tvalue Tvalue;
          public:
            typedef typename std::map<Tvalue,int> Tmap;
            typedef Tmap Tretval;
            Extracthisto(const Tcont& c) { }
            void operator() (const Tvalue& v)
            { ++Mmap[v]; }
            Tretval result() const { return(Mmap); }
          private:
            Tmap Mmap;
        }; // class Extracthisto
      
    } // namespace util

/*----------------------------------------------------------------------*/

    template<class C>
      typename aff::func::util::Extracthisto<C>::Tmap histo(const C& c)
      {
        return(aff::func::util::collect<C, aff::func::util::Extracthisto>(c));
      } // histo()

  } // namespace func

} // namespace aff

#endif // AFF_HISTO_H_VERSION (includeguard)

/* ----- END OF histo.h ----- */