/usr/include/CGAL/Simple_cartesian.h is in libcgal-dev 4.2-5ubuntu1.
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) : Herve Bronnimann, Sylvain Pion
#ifndef CGAL_SIMPLE_CARTESIAN_H
#define CGAL_SIMPLE_CARTESIAN_H
#include <CGAL/Cartesian/Cartesian_base.h>
#include <CGAL/Handle_for.h>
#include <CGAL/Kernel/Type_equality_wrapper.h>
namespace CGAL {
template < typename FT_, typename Kernel_ >
struct Cartesian_base_no_ref_count
: public Cartesian_base< Kernel_, FT_ >
{
typedef FT_ RT;
typedef FT_ FT;
// The mechanism that allows to specify reference-counting or not.
template < typename T >
struct Handle { typedef T type; };
template < typename Kernel2 >
struct Base { typedef Cartesian_base_no_ref_count<FT_, Kernel2> Type; };
typedef Kernel_ K;
#define CGAL_Kernel_pred(Y,Z) typedef CartesianKernelFunctors::Y<K> Y; \
Y Z() const { return Y(); }
#define CGAL_Kernel_cons(Y,Z) CGAL_Kernel_pred(Y,Z)
#include <CGAL/Kernel/interface_macros.h>
};
template < typename FT_ >
struct Simple_cartesian
: public Type_equality_wrapper<
Cartesian_base_no_ref_count<FT_, Simple_cartesian<FT_> >,
Simple_cartesian<FT_> >
{};
} //namespace CGAL
#endif // CGAL_SIMPLE_CARTESIAN_H
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