max.h

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// include guard
#ifndef AFF_MAX_H_VERSION

#define AFF_MAX_H_VERSION \
  "AFF_MAX_H   V1.1   "

#include<aff/lib/collector.h>

namespace aff {

  namespace func {

    namespace util {

      template<class C>
        class Extractmax {
          typedef typename C::Tcoc Tcont;
          typedef typename C::Tvalue Tvalue;
          public:
            typedef Tvalue Tretval;
            Extractmax(const Tcont& c): Mval(c(c.first())) { }
            void operator() (const Tvalue& v) 
            { Mval = Mval > v ? Mval : v; }
            Tretval result() const { return(Mval); }
          private:
            Tvalue Mval;
        }; // class Extractmax
      
    } // namespace util

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

    template<class C>
      typename C::Tvalue max(const C& c)
      {
        return(aff::func::util::collect<C, aff::func::util::Extractmax>(c));
      } // max()

  } // namespace func

} // namespace aff

#endif // AFF_MAX_H_VERSION (includeguard)

/* ----- END OF max.h ----- */