/usr/include/mapnik/coord.hpp is in libmapnik-dev 3.0.9+ds-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2015 Artem Pavlenko
*
* This library is free software; 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 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*****************************************************************************/
#ifndef MAPNIK_COORD_HPP
#define MAPNIK_COORD_HPP
// boost
#include <boost/operators.hpp>
namespace mapnik {
template <typename T,int dim>
struct coord {
using type = T;
};
template <typename T>
struct coord<T,2>
: boost::addable<coord<T,2>,
boost::addable2<coord<T,2>,T,
boost::subtractable<coord<T,2>,
boost::subtractable2<coord<T,2>,T,
boost::dividable2<coord<T,2>, T,
boost::multipliable2<coord<T,2>, T > > > > > >
{
using type = T;
T x;
T y;
public:
coord()
: x(),y() {}
coord(T x_,T y_)
: x(x_),y(y_) {}
coord(coord<T,2> const& rhs)
: x(rhs.x),
y(rhs.y) {}
template <typename T2>
coord (coord<T2,2> const& rhs)
: x(type(rhs.x)),
y(type(rhs.y)) {}
coord(coord<T,2> && rhs) noexcept
: x(std::move(rhs.x)),
y(std::move(rhs.y)) {}
coord<T,2>& operator=(coord<T,2> rhs)
{
swap(rhs);
return *this;
}
template <typename T2>
coord<T,2>& operator=(const coord<T2,2>& rhs)
{
coord<T,2> tmp(rhs);
swap(rhs);
return *this;
}
template <typename T2>
bool operator==(coord<T2,2> const& rhs)
{
return x == rhs.x && y == rhs.y;
}
coord<T,2>& operator+=(coord<T,2> const& rhs)
{
x+=rhs.x;
y+=rhs.y;
return *this;
}
coord<T,2>& operator+=(T rhs)
{
x+=rhs;
y+=rhs;
return *this;
}
coord<T,2>& operator-=(coord<T,2> const& rhs)
{
x-=rhs.x;
y-=rhs.y;
return *this;
}
coord<T,2>& operator-=(T rhs)
{
x-=rhs;
y-=rhs;
return *this;
}
coord<T,2>& operator*=(T t)
{
x*=t;
y*=t;
return *this;
}
coord<T,2>& operator/=(T t)
{
x/=t;
y/=t;
return *this;
}
private:
void swap(coord<T,2> & rhs)
{
std::swap(this->x, rhs.x);
std::swap(this->y, rhs.y);
}
};
template <typename T>
struct coord<T,3>
{
using type = T;
T x;
T y;
T z;
public:
coord()
: x(),y(),z() {}
coord(T x_,T y_,T z_)
: x(x_),y(y_),z(z_) {}
template <typename T2>
coord (coord<T2,3> const& rhs)
: x(type(rhs.x)),
y(type(rhs.y)),
z(type(rhs.z)) {}
coord(coord<T,3> && rhs) noexcept
: x(std::move(rhs.x)),
y(std::move(rhs.y)),
z(std::move(rhs.z)) {}
coord<T,3> operator=(coord<T,3> rhs)
{
swap(rhs);
return *this;
}
template <typename T2>
coord<T,3>& operator=(coord<T2,3> const& rhs)
{
coord<T,3> tmp(rhs);
swap(tmp);
return *this;
}
private:
void swap(coord<T,3> & rhs)
{
std::swap(this->x, rhs.x);
std::swap(this->y, rhs.y);
std::swap(this->z, rhs.z);
}
};
using coord2d = coord<double,2>;
using coord2i = coord<int,2>;
}
#endif // MAPNIK_COORD_HPP
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