boost/libs/geometry/doc/src/examples/geometries/adapted/boost_range/reversed.cpp

// Boost.Geometry (aka GGL, Generic Geometry Library)
// QuickBook Example

// Copyright (c) 2011-2012 Barend Gehrels, Amsterdam, the Netherlands.

// Use, modification and distribution is subject to the Boost Software License,
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)

//[boost_range_reversed
//` Shows how to use a Boost.Geometry linestring, reversed by Boost.Range adaptor

#include <iostream>

#include <boost/geometry.hpp>
#include <boost/geometry/geometries/linestring.hpp>
#include <boost/geometry/geometries/point_xy.hpp>
#include <boost/geometry/geometries/adapted/boost_range/reversed.hpp>

int main()
{
    typedef boost::geometry::model::d2::point_xy<int> xy;
    boost::geometry::model::linestring<xy> line;
    line.push_back(xy(0, 0));
    line.push_back(xy(1, 1));

    std::cout
        << boost::geometry::dsv(line | boost::adaptors::reversed)
        << std::endl;

    return 0;
}

//]

//[boost_range_reversed_output
/*`
Output:
[pre
((1, 1), (0, 0))
]
*/
//]