/usr/include/CGAL/Polynomial/Polynomial.h is in libcgal-dev 4.2-5ubuntu1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 | // Copyright (c) 2005 Stanford University (USA).
// 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; either version 3 of the License,
// or (at your option) any later version.
//
// 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.
//
// $URL$
// $Id$
//
//
// Author(s) : Daniel Russel <drussel@alumni.princeton.edu>
#ifndef CGAL_POLYNOMIAL_POLYNOMIAL_H_
#define CGAL_POLYNOMIAL_POLYNOMIAL_H_
#include <CGAL/Polynomial/basic.h>
#include <CGAL/Polynomial/internal/interval_arithmetic.h>
#include <CGAL/Polynomial/internal/Polynomial_impl.h>
//#include <utility>
#include <sstream>
namespace CGAL { namespace POLYNOMIAL {
//! A basic polynomial class
/*! The implementation is proved by internal::Polynomial_impl. This
strips leading 0s. When debugging is on, a string representation of
the polynomial is stored. This is fairly key for debugging, but
rather slow.
*/
template <class NTT>
class Polynomial: public internal::Polynomial_impl<Polynomial<NTT>, NTT>
{
typedef Polynomial<NTT> This;
typedef internal::Polynomial_impl<This, NTT> Parent;
// friend class internal::Polynomial_impl<This, NTT>; // NOT SO CLEAN
#ifdef CGAL_POLYNOMIAL_STRING
typedef std::string Approximation;
void generate_approximation() const
{
std::ostringstream s;
this->write(s);
approximation_= s.str();
//return s.str();
}
#endif
void approximate() const
{
#ifdef CGAL_POLYNOMIAL_STRING
generate_approximation();
#endif
}
public:
// hack to try to fix pgCC
//using typename Parent::iterator;
typedef typename Parent::iterator iterator;
//================
// CONSTRUCTORS
//================
//! Default
Polynomial() {
#ifdef CGAL_POLYNOMIAL_STRING
approximation_="Not initialized.";
#endif
}
//! Make a constant polynomial
Polynomial(const NTT& c): Parent(c) {
#ifdef CGAL_POLYNOMIAL_STRING
approximate();
#endif
strip_leading_zeros();
}
//! Make a polynomial from an iterator range
template<typename Iterator>
Polynomial(Iterator first, Iterator beyond)
: Parent(first,beyond) {
#ifdef CGAL_POLYNOMIAL_STRING
approximate();
#endif
strip_leading_zeros();
}
Polynomial(const Parent &p): Parent(p) {
#ifdef CGAL_POLYNOMIAL_STRING
approximate();
#endif
strip_leading_zeros();
}
protected:
void strip_leading_zeros() {
if ( this->is_zero() ) { return; }
do {
Sign s = CGAL::sign( this->coefs_[this->degree()] );
if ( s == ZERO ) {
CGAL_Polynomial_assertion( this->coefs_.size() > 0 );
this->coefs_.resize(this->coefs_.size() - 1);
}
else {
break;
}
} while ( !this->is_zero() );
}
public:
void finalize() {
strip_leading_zeros();
}
private:
#ifdef CGAL_POLYNOMIAL_STRING
/*! A string represneting the approximation of the polynomial. For
inspection in the debugger.*/
mutable Approximation approximation_;
#endif
};
} } //namespace CGAL::POLYNOMIAL
#endif
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