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// Copyright (c) 2007-2009 Inria Lorraine (France). 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-3.6-branch/Number_types/include/CGAL/Gmpfi.h $
// $Id: Gmpfi.h 53708 2010-01-20 16:38:53Z lrineau $
//
// Author: Luis Pearanda <luis.penaranda@loria.fr>
#ifndef CGAL_GMPFI_H
#define CGAL_GMPFI_H
#include <CGAL/number_type_basic.h>
#include <CGAL/mpfi_coercion_traits.h>
namespace CGAL{
template <>
struct Algebraic_structure_traits<Gmpfi>:
public Algebraic_structure_traits_base<Gmpfi,Field_with_kth_root_tag>{
typedef Tag_false Is_exact;
typedef Tag_true Is_numerical_sensitive;
typedef Uncertain<bool> Boolean;
struct Is_zero:
public std::unary_function<Type,Boolean>{
Boolean operator()(const Type &x)const{
return x.is_zero();
}
};
struct Is_one:
public std::unary_function<Type,Boolean>{
Boolean operator()(const Type &x)const{
return x.is_one();
}
};
struct Square:
public std::unary_function<Type,Type>{
Type operator()(const Type &x)const{
return x.square();
};
};
struct Is_square:
public std::binary_function<Type,Type&,Boolean>{
Boolean operator()(const Type &x)const{
return x.is_square();
};
Boolean operator()(const Type &x,Type &y)const{
return x.is_square(y);
};
};
struct Sqrt:
public std::unary_function<Type,Type>{
Type operator()(const Type &x)const{
return x.sqrt();
};
};
struct Kth_Root:
public std::binary_function<int,Type,Type>{
Type operator()(int k,const Type &x)const{
return (k==3?x.cbrt():x.kthroot(k));
};
};
struct Divides:
public std::binary_function<Type,Type,Boolean>{
Boolean operator()(const Type &d,const Type &n)const{
return !(d.is_zero());
};
Boolean operator()(const Type &d,const Type &n,Type &c)const{
return d.divides(n,c);
};
};
};
template <>
class Real_embeddable_traits<Gmpfi>:
public INTERN_RET::Real_embeddable_traits_base<Gmpfi,CGAL::Tag_true>{
typedef Algebraic_structure_traits<Type> AST;
public:
typedef Tag_true Is_real_embeddable;
typedef Uncertain<bool> Boolean;
typedef Uncertain<Comparison_result> Comparison_result;
typedef Uncertain<CGAL::Sign> Sign;
typedef AST::Is_zero Is_zero;
struct Is_finite:
public std::unary_function<Type,Boolean>{
inline Boolean operator()(const Type &x)const{
return(x.is_number());
};
};
struct Abs:
public std::unary_function<Type,Type>{
inline Type operator()(const Type &x)const{
return x.abs();
};
};
struct Sgn:
public std::unary_function<Type,Sign>{
inline Sign operator()(const Type &x)const{
return x.sign();
};
};
struct Is_positive:
public std::unary_function<Type,Boolean>{
inline Boolean operator()(const Type &x)const{
return x.is_positive();
};
};
struct Is_negative:
public std::unary_function<Type,Boolean>{
inline Boolean operator()(const Type &x)const{
return x.is_negative();
};
};
struct Compare:
public std::binary_function<Type,Type,Comparison_result>{
inline Comparison_result operator()
(const Type &x,const Type &y)const{
return x.compare(y);
};
};
struct To_double:
public std::unary_function<Type,double>{
inline double operator()(const Type &x)const{
return x.to_double();
};
};
struct To_interval:
public std::unary_function<Type,std::pair<double,double> >{
inline std::pair<double,double> operator()(const Type &x)const{
return x.to_interval();
};
};
};
}
#include <CGAL/GMP/Gmpfi_type.h>
#endif // CGAL_GMPFI_H
// vim: tabstop=8: softtabstop=8: smarttab: shiftwidth=8: expandtab
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