accumulators.hh

// Copyright (C) 2009 EPITA Research and Development Laboratory (LRDE)
//
// This file is part of Olena.
//
// Olena is free software: you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation, version 2 of the License.
//
// Olena is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Olena.  If not, see <http://www.gnu.org/licenses/>.
//
// As a special exception, you may use this file as part of a free
// software project without restriction.  Specifically, if other files
// instantiate templates or use macros or inline functions from this
// file, or you compile this file and link it with other files to produce
// an executable, this file does not by itself cause the resulting
// executable to be covered by the GNU General Public License.  This
// exception does not however invalidate any other reasons why the
// executable file might be covered by the GNU General Public License.

#ifndef MLN_TRAIT_ACCUMULATORS_HH
# define MLN_TRAIT_ACCUMULATORS_HH


# include <mln/trait/accumulator/props.hh>
# include <mln/trait/undef.hh>


# define mln_trait_accumulator_has_untake(A) typename mln::trait::accumulator_< A >::has_untake

# define mln_trait_accumulator_has_set_value(A) typename mln::trait::accumulator_< A >::has_set_value

# define mln_trait_accumulator_has_stop(A) typename mln::trait::accumulator_< A >::has_stop

# define mln_trait_accumulator_when_pix(A) typename mln::trait::accumulator_< A >::when_pix



namespace mln
{

  namespace trait
  {

    template <typename A>
    struct undefined_accumulator_
    {
      typedef undef has_untake;
      typedef undef has_stop;
      typedef undef has_set_value;
      typedef accumulator::when_pix::not_ok when_pix;
    };

    template <typename A>
    struct accumulator_ : undefined_accumulator_<A>
    {
    };


  } // end of namespace mln::trait

} // end of namespace mln


# include <mln/trait/accumulator/print.hh>


#endif // ! MLN_TRAIT_ACCUMULATORS_HH