mirror of https://github.com/CGAL/cgal
87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
// Copyright (c) 2005 Stanford University (USA).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 3 of the License,
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// or (at your option) any later version.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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//
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//
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// Author(s) : Daniel Russel <drussel@alumni.princeton.edu>
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#ifndef CGAL_KINETIC_IO_KERNEL_CERTIFICATE_H
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#define CGAL_KINETIC_IO_KERNEL_CERTIFICATE_H
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#include <CGAL/Kinetic/basic.h>
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#include <limits>
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namespace CGAL { namespace Kinetic { namespace internal {
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template <class Function_kernel_t>
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class Certificate {
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public:
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typedef typename Function_kernel_t::Function Function;
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typedef typename Function_kernel_t::Root Time;
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Certificate(const Function &f, const Function_kernel_t& fk, const Time &b, const Time &e): rs_(fk.root_stack_object(f, b, e)) {
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/*typename Function_kernel_t::Lower_bound_root lbr= fk.lower_bound_root_object();
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estimate_= lbr(f, b);*/
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/*if (f.degree() > 0) {
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std::cout << "Certificate function is " << f << std::endl;
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}*/
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}
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Certificate(){}
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bool will_fail() const {
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return !rs_.empty();
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}
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const Time &failure_time() const {
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if (rs_.empty()) {
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std::cerr << "You now must check if the certificate will fail before calling top.\n";
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CGAL_error();
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static Time t(1000000);
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return t;
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}
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return rs_.top();
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}
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void pop_failure_time() {
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if (!rs_.empty()) rs_.pop();
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}
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const typename Function_kernel_t::Root_stack& root_stack() const {
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return rs_;
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}
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/*double lower_bound() const {
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return estimate_;
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}*/
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std::ostream &write(std::ostream &out) const {
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out << rs_;
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return out;
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}
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/*bool operator==(const This &o) const {
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return rs_== o.rs_;
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}*/
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private:
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typename Function_kernel_t::Root_stack rs_;
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//double estimate_;
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};
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template <class FK>
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inline std::ostream& operator<<(std::ostream& out, const Certificate<FK> &c) {
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return c.write(out);
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}
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} } } //namespace CGAL::Kinetic::internal
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#endif
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