/usr/include/CGAL/ch_jarvis.h is in libcgal-dev 4.7-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 | // Copyright (c) 1999 Max-Planck-Institute Saarbruecken (Germany).
// 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
// 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) : Stefan Schirra
#ifndef CGAL_CH_JARVIS_H
#define CGAL_CH_JARVIS_H
#include <CGAL/basic.h>
#include <iterator>
namespace CGAL {
// generates the counterclockwise ordered subsequence of
// extreme points between |start_p| and |stop_p| of the points in the
// range [|first|,|last|), starting at position result with point |start_p|.
// The last point generated is the point preceding |stop_p| in the
// counterclockwise order of extreme points.
// {\it Precondition:} |start_p| and |stop_p| are extreme points with respect
// to the points in the range [|first|,|last|) and |stop_p| is an element of
// range [|first|,|last|).
// {\sc traits}: uses |Traits::Point_2| $\equiv$ |Point|, |Traits::Equal_2|
// and |Traits::Less_rotate_ccw_2|.
template <class ForwardIterator, class OutputIterator,
class Point, class Traits>
OutputIterator
ch_jarvis_march(ForwardIterator first, ForwardIterator last,
const Point& start_p, const Point& stop_p,
OutputIterator result,
const Traits& ch_traits);
template <class ForwardIterator, class OutputIterator, class Point>
inline
OutputIterator
ch_jarvis_march(ForwardIterator first, ForwardIterator last,
const Point& start_p,
const Point& stop_p,
OutputIterator result )
{
typedef CGAL::Kernel_traits<Point> KTraits;
typedef typename KTraits::Kernel Kernel;
return ch_jarvis_march( first, last, start_p, stop_p, result, Kernel());
}
// same as |convex_hull_2(first,last,result)|.
// {\sc traits}: uses |Traits::Point_2|, |Traits::Less_rotate_ccw_2|,
// |Traits::Equal_2| and |Traits::Less_xy_2|.
template <class ForwardIterator, class OutputIterator, class Traits>
OutputIterator
ch_jarvis(ForwardIterator first, ForwardIterator last,
OutputIterator result,
const Traits& ch_traits);
template <class ForwardIterator, class OutputIterator>
inline
OutputIterator
ch_jarvis(ForwardIterator first, ForwardIterator last, OutputIterator result)
{
typedef std::iterator_traits<ForwardIterator> ITraits;
typedef typename ITraits::value_type value_type;
typedef CGAL::Kernel_traits<value_type> KTraits;
typedef typename KTraits::Kernel Kernel;
return ch_jarvis( first, last, result, Kernel());
}
} //namespace CGAL
#include <CGAL/Convex_hull_2/ch_jarvis_impl.h>
#endif // CGAL_CH_JARVIS_H
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