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// Copyright (c) 1999 Utrecht University (The Netherlands),
// ETH Zurich (Switzerland), Freie Universitaet Berlin (Germany),
// INRIA Sophia-Antipolis (France), Martin-Luther-University Halle-Wittenberg
// (Germany), Max-Planck-Institute Saarbruecken (Germany), RISC Linz (Austria),
// and Tel-Aviv University (Israel). All rights reserved.
//
// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; version 2.1 of the License.
// See the file LICENSE.LGPL distributed with CGAL.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL: svn+ssh://scm.gforge.inria.fr/svn/cgal/branches/CGAL-3.2-branch/Number_types/include/CGAL/number_type_basic.h $
// $Id: number_type_basic.h 30034 2006-04-06 09:10:38Z spion $
//
//
// Author(s) : Stefan Schirra
#ifndef CGAL_NUMBER_TYPE_BASIC_H
#define CGAL_NUMBER_TYPE_BASIC_H
#define CGAL_PI 3.14159265358979323846
#define CGAL_NTS CGAL::
// #define CGAL_NTS CGAL::NTS::
// CGAL uses std::min and std::max
#include <algorithm>
#include <CGAL/config.h>
CGAL_BEGIN_NAMESPACE
using std::min;
using std::max;
CGAL_END_NAMESPACE
#include <CGAL/number_utils_fwd.h>
#include <CGAL/known_bit_size_integers.h>
#include <CGAL/Number_type_traits.h>
#include <CGAL/float.h>
#include <CGAL/double.h>
#include <CGAL/long_double.h>
#include <CGAL/int.h>
#ifdef CGAL_USE_LONG_LONG
#include <CGAL/long_long.h>
#endif
// Including all number type files is necessary for compilers implementing
// two-stage name lookup (like g++ >= 3.4).
// A nicer solution needs more thought.
#ifndef CGAL_CFG_NO_TWO_STAGE_NAME_LOOKUP
#include <CGAL/Interval_nt_fwd.h>
#include <CGAL/Lazy_exact_nt_fwd.h>
#include <CGAL/Filtered_exact_fwd.h>
#include <CGAL/MP_Float_fwd.h>
#include <CGAL/Nef_polynomial_fwd.h>
#include <CGAL/Number_type_checker_fwd.h>
#ifdef CGAL_USE_GMP
# include <CGAL/Gmpzq_fwd.h>
#endif
#ifdef CGAL_USE_GMPXX
# include <CGAL/gmpxx_fwd.h>
#endif
#ifdef CGAL_USE_CORE
# include <CGAL/CORE_Expr_fwd.h>
#endif
#include <CGAL/Quotient_fwd.h>
#include <CGAL/Root_of_2_fwd.h>
#include <CGAL/make_root_of_2.h>
// We must also include the following two, because of the overloadings
// for Quotient<MP_Float> and Quotient<Gmpz>, which triggers their
// instantiation, even if only to_double(double) is called, at least
// when Quotient is defined...
#include <CGAL/MP_Float.h>
#ifdef CGAL_USE_GMP
# include <CGAL/Gmpz.h>
#endif
CGAL_BEGIN_NAMESPACE
// Fixed_precision_nt
class Fixed_precision_nt;
double to_double(Fixed_precision_nt);
bool is_finite(Fixed_precision_nt);
bool is_valid(Fixed_precision_nt);
std::pair<double,double> to_interval(Fixed_precision_nt);
#if 0
// Polynomial
template <typename T> class Polynomial;
template <typename ET>
double to_double(const Polynomial<ET> &);
template <typename ET>
std::pair<double,double> to_interval(const Polynomial<ET> &);
template <typename ET>
Sign sign(const Polynomial<ET> &);
template <typename ET>
Polynomial<ET> abs(const Polynomial<ET> &);
template <typename ET>
bool is_finite(const Polynomial<ET> &);
template <typename ET>
bool is_valid(const Polynomial<ET> &);
template <typename ET>
Polynomial<ET> gcd(const Polynomial<ET> &, const Polynomial<ET> &);
// Nef_polynomial
template <typename T> class Nef_polynomial;
template <typename ET>
double to_double(const Nef_polynomial<ET> &);
template <typename ET>
Nef_polynomial<ET> gcd(const Nef_polynomial<ET> &, const Nef_polynomial<ET> &);
#endif
CGAL_END_NAMESPACE
#endif // CGAL_CFG_NO_TWO_STAGE_NAME_LOOKUP
#include <CGAL/number_utils.h>
#include <CGAL/number_utils_classes.h>
#endif // CGAL_NUMBER_TYPE_BASIC_H
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