/usr/include/CGAL/Cartesian/Ray_2.h is in libcgal-dev 4.5-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Utrecht University (The Netherlands),
// ETH Zurich (Switzerland),
// INRIA Sophia-Antipolis (France),
// Max-Planck-Institute Saarbruecken (Germany),
// and Tel-Aviv University (Israel). 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) : Andreas Fabri, Herve Bronnimann
#ifndef CGAL_CARTESIAN_RAY_2_H
#define CGAL_CARTESIAN_RAY_2_H
#include <CGAL/array.h>
namespace CGAL {
template < class R_ >
class RayC2
{
typedef typename R_::FT FT;
typedef typename R_::Point_2 Point_2;
typedef typename R_::Ray_2 Ray_2;
typedef cpp11::array<Point_2, 2> Rep;
typedef typename R_::template Handle<Rep>::type Base;
Base base;
public:
typedef R_ R;
RayC2()
{}
RayC2(const Point_2 &sp, const Point_2 &secondp)
: base(CGAL::make_array(sp, secondp))
{}
const Point_2&
source() const
{
return get(base)[0];
}
const Point_2 &
second_point() const
{
return get(base)[1];
}
typename R_::Boolean is_degenerate() const
{
return source() == second_point();
}
};
} //namespace CGAL
#endif // CGAL_CARTESIAN_RAY_2_H
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