/* Rational_Interval class declaration and implementation.
   Copyright (C) 2001-2010 Roberto Bagnara <bagnara@cs.unipr.it>
   Copyright (C) 2010-2011 BUGSENG srl (http://bugseng.com)

This file is part of the Parma Polyhedra Library (PPL).

The PPL 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; either version 3 of the License, or (at your
option) any later version.

The PPL 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 this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307, USA.

For the most up-to-date information see the Parma Polyhedra Library
site: http://www.cs.unipr.it/ppl/ . */

#ifndef PPL_Rational_Interval_hh
#define PPL_Rational_Interval_hh 1

#include "Interval.defs.hh"
#include <gmpxx.h>

namespace Parma_Polyhedra_Library {

struct Rational_Interval_Info_Policy {
  const_bool_nodef(store_special, true);
  const_bool_nodef(store_open, true);
  const_bool_nodef(cache_empty, true);
  const_bool_nodef(cache_singleton, true);
  const_bool_nodef(cache_normalized, false);
  const_int_nodef(next_bit, 0);
  const_bool_nodef(may_be_empty, true);
  const_bool_nodef(may_contain_infinity, false);
  const_bool_nodef(check_inexact, false);
};

typedef
Interval_Restriction_None<Interval_Info_Bitset<unsigned int,
                                               Rational_Interval_Info_Policy> >
Rational_Interval_Info;

#ifdef PPL_DOXYGEN_INCLUDE_IMPLEMENTATION_DETAILS
//! An interval with rational, possibly open boundaries.
#endif // defined(PPL_DOXYGEN_INCLUDE_IMPLEMENTATION_DETAILS)
typedef Interval<mpq_class, Rational_Interval_Info> Rational_Interval;

} // namespace Parma_Polyhedra_Library

#endif // !defined(PPL_Rational_Interval_hh)