mirror of https://github.com/CGAL/cgal
99 lines
3.2 KiB
C++
99 lines
3.2 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; version 2.1 of the License.
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// See the file LICENSE.LGPL distributed with CGAL.
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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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CGAL_KINETIC_BEGIN_INTERNAL_NAMESPACE
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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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}
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Certificate(){}
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const Time &failure_time() const {
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static Time inf= std::numeric_limits<Time>::infinity();
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if (rs_.empty()) return inf;
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else 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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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 KK_t, class Generator>
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struct Certificate_function_generator: public Generator {
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typedef Certificate<typename KK_t::Function_kernel> result_type;
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typedef typename KK_t::Function_kernel::Root Time;
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Certificate_function_generator(typename KK_t::Function_kernel fk): fk_(fk){}
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template <class A, class B, class C, class D, class E>
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result_type operator()(const A &a, const B &b, const C &c, const D &d, const E &e, const Time &begin, const Time &end) const {
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return result_type(Generator::operator()(a, b, c, d, e), fk_, begin, end);
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}
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template <class A, class B, class C, class D>
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result_type operator()(const A &a, const B &b, const C &c, const D &d, const Time &begin, const Time &end) const {
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return result_type(Generator::operator()(a, b, c, d), fk_, begin, end);
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}
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template <class A, class B, class C>
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result_type operator()(const A &a, const B &b, const C &c, const Time &begin, const Time &end) const {
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return result_type(Generator::operator()(a, b, c), fk_, begin, end);
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}
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template <class A, class B>
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result_type operator()(const A &a, const B &b, const Time &begin, const Time &end) const {
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return result_type(Generator::operator()(a, b), fk_, begin, end);
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}
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template <class A>
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result_type operator()(const A &a, const Time &begin, const Time &end) const {
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return result_type(Generator::operator()(a), fk_,begin,end);
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}
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typename KK_t::Function_kernel fk_;
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};
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CGAL_KINETIC_END_INTERNAL_NAMESPACE
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#endif
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