print.hh

// Copyright (C) 2007, 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_VALUE_PRINT_HH
# define MLN_TRAIT_VALUE_PRINT_HH

# include <iostream>
# include <mln/trait/value_.hh>
# include <mln/metal/is_a.hh>



namespace mln
{

  // Fwd decl.
  template <typename E> struct Value;


  namespace trait
  {

    namespace value
    {

      template <typename V>
      void print(std::ostream& ostr);

      template <typename V>
      void print(const Value<V>& v, std::ostream& ostr);


# ifndef MLN_INCLUDE_ONLY

      template <typename V>
      inline
      void print(std::ostream& ostr)
      {
        mlc_is_a(V, Value)::check(); // FIXME: What about built-ins?
        typedef mln::trait::value_<V> the;
        ostr << "{ "
             << typename the::nature().name() << ", "
             << typename the::kind()  .name() << ", "
             << typename the::quant() .name() << ", "
             << "nbits=" << the::nbits        << ", "
             << "card="  << the::card         << ", "
             << " }" << std::endl;
      }

      template <typename V>
      inline
      void print(const Value<V>&, std::ostream& ostr)
      {
        print<V>(ostr);
      }

# endif // ! MLN_INCLUDE_ONLY

    } // end of namespace mln::trait::value

  } // end of namespace mln::trait

} // end of namespace mln


#endif // ! MLN_TRAIT_VALUE_PRINT_HH