cgal/Partition_2/include/CGAL/polygon_function_objects.h

68 lines
1.3 KiB
C++

// Copyright (c) 2000 Max-Planck-Institute Saarbruecken (Germany).
// All rights reserved.
//
// This file is part of CGAL (www.cgal.org).
//
// $URL$
// $Id$
// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
//
//
// Author(s) : Susan Hert <hert@mpi-sb.mpg.de>
#ifndef CGAL_POLYGON_FUNCTION_OBJECTS_H
#define CGAL_POLYGON_FUNCTION_OBJECTS_H
#include <CGAL/license/Partition_2.h>
#include <CGAL/is_y_monotone_2.h>
namespace CGAL {
template <class Traits>
class Is_vacuously_valid
{
public:
Is_vacuously_valid(Traits ) {}
template <class ForwardIterator>
bool operator()(ForwardIterator, ForwardIterator)
{ return true; }
};
template <class Traits>
class Is_convex_2
{
public:
Is_convex_2(const Traits& t): traits(t) {}
template <class ForwardIterator>
bool operator()(ForwardIterator first, ForwardIterator last)
{ return is_convex_2(first, last, traits); }
private:
const Traits& traits;
};
template <class Traits>
class Is_y_monotone_2
{
public:
Is_y_monotone_2(const Traits& t): traits(t) {}
template <class ForwardIterator>
bool operator()(ForwardIterator first, ForwardIterator last)
{ return is_y_monotone_2(first, last, traits); }
private:
const Traits& traits;
};
}
#endif // CGAL_POLYGON_FUNCTION_OBJECTS_H