/usr/include/CGAL/Bbox_2.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) : Andreas Fabri
#ifndef CGAL_BBOX_2_H
#define CGAL_BBOX_2_H
#include <CGAL/basic.h>
#include <CGAL/kernel_assertions.h>
#include <CGAL/IO/io.h>
#include <CGAL/Dimension.h>
#include <CGAL/array.h>
namespace CGAL {
template < typename T >
struct Simple_cartesian;
class Bbox_2
{
typedef cpp11::array<double, 4> BBox_rep_2;
BBox_rep_2 rep;
public:
typedef Dimension_tag<2> Ambient_dimension;
typedef Dimension_tag<2> Feature_dimension;
typedef Simple_cartesian<double> R;
Bbox_2() {}
Bbox_2(double x_min, double y_min,
double x_max, double y_max)
: rep(CGAL::make_array(x_min, y_min, x_max, y_max)) {}
inline bool operator==(const Bbox_2 &b) const;
inline bool operator!=(const Bbox_2 &b) const;
inline int dimension() const;
inline double xmin() const;
inline double ymin() const;
inline double xmax() const;
inline double ymax() const;
inline double max BOOST_PREVENT_MACRO_SUBSTITUTION (int i) const;
inline double min BOOST_PREVENT_MACRO_SUBSTITUTION (int i) const;
inline Bbox_2 operator+(const Bbox_2 &b) const;
};
inline
double
Bbox_2::xmin() const
{ return rep[0]; }
inline
double
Bbox_2::ymin() const
{ return rep[1]; }
inline
double
Bbox_2::xmax() const
{ return rep[2]; }
inline
double
Bbox_2::ymax() const
{ return rep[3]; }
inline
bool
Bbox_2::operator==(const Bbox_2 &b) const
{
return xmin() == b.xmin() && xmax() == b.xmax()
&& ymin() == b.ymin() && ymax() == b.ymax();
}
inline
bool
Bbox_2::operator!=(const Bbox_2 &b) const
{
return ! (b == *this);
}
inline
int
Bbox_2::dimension() const
{ return 2; }
inline
double
Bbox_2::min BOOST_PREVENT_MACRO_SUBSTITUTION (int i) const
{
CGAL_kernel_precondition( (i == 0 ) || ( i == 1 ) );
if(i == 0) { return xmin(); }
return ymin();
}
inline
double
Bbox_2::max BOOST_PREVENT_MACRO_SUBSTITUTION (int i) const
{
CGAL_kernel_precondition( (i == 0 ) || ( i == 1 ) );
if(i == 0) { return xmax(); }
return ymax();
}
inline
Bbox_2
Bbox_2::operator+(const Bbox_2 &b) const
{
return Bbox_2((std::min)(xmin(), b.xmin()),
(std::min)(ymin(), b.ymin()),
(std::max)(xmax(), b.xmax()),
(std::max)(ymax(), b.ymax()));
}
inline
bool
do_overlap(const Bbox_2 &bb1, const Bbox_2 &bb2)
{
// check for emptiness ??
if (bb1.xmax() < bb2.xmin() || bb2.xmax() < bb1.xmin())
return false;
if (bb1.ymax() < bb2.ymin() || bb2.ymax() < bb1.ymin())
return false;
return true;
}
inline
std::ostream&
operator<<(std::ostream &os, const Bbox_2 &b)
{
switch(os.iword(IO::mode)) {
case IO::ASCII :
os << b.xmin() << ' ' << b.ymin() << ' '
<< b.xmax() << ' ' << b.ymax();
break;
case IO::BINARY :
write(os, b.xmin());
write(os, b.ymin());
write(os, b.xmax());
write(os, b.ymax());
break;
default:
os << "Bbox_2(" << b.xmin() << ", " << b.ymin() << ", "
<< b.xmax() << ", " << b.ymax() << ")";
break;
}
return os;
}
inline
std::istream&
operator>>(std::istream &is, Bbox_2 &b)
{
double xmin, ymin, xmax, ymax;
switch(is.iword(IO::mode)) {
case IO::ASCII :
is >> xmin >> ymin >> xmax >> ymax;
break;
case IO::BINARY :
read(is, xmin);
read(is, ymin);
read(is, xmax);
read(is, ymax);
break;
}
if (is)
b = Bbox_2(xmin, ymin, xmax, ymax);
return is;
}
} //namespace CGAL
#endif // CGAL_BBOX_2_H
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