From cd1d490d2e53568addd2ab122f4c14b64bd181b8 Mon Sep 17 00:00:00 2001
From: Menelaos Karavelas <menelaos.karavelas@gmail.com>
Date: Mon, 5 May 2014 09:50:04 +0300
Subject: [PATCH] [point_iterator] add free functions points_front and
 points_back that return the first and last point of a geometry

---
 .../geometry/iterators/point_iterator.hpp     | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/include/boost/geometry/iterators/point_iterator.hpp b/include/boost/geometry/iterators/point_iterator.hpp
index 0c21127f3..aa01a0eaa 100644
--- a/include/boost/geometry/iterators/point_iterator.hpp
+++ b/include/boost/geometry/iterators/point_iterator.hpp
@@ -10,6 +10,7 @@
 #ifndef BOOST_GEOMETRY_ITERATORS_POINT_ITERATOR_HPP
 #define BOOST_GEOMETRY_ITERATORS_POINT_ITERATOR_HPP
 
+#include <boost/assert.hpp>
 #include <boost/mpl/assert.hpp>
 #include <boost/type_traits/is_convertible.hpp>
 #include <boost/range.hpp>
@@ -280,6 +281,30 @@ points_end(Geometry& geometry)
 }
 
 
+// MK:: need to add doc here
+template <typename Geometry>
+inline typename point_type<Geometry>::type
+points_front(Geometry& geometry)
+{
+    BOOST_ASSERT( dispatch::points_begin<Geometry>::apply(geometry)
+                  != dispatch::points_end<Geometry>::apply(geometry) );
+    return *dispatch::points_begin<Geometry>::apply(geometry);
+}
+
+
+// MK:: need to add doc here
+template <typename Geometry>
+inline typename point_type<Geometry>::type
+points_back(Geometry& geometry)
+{
+    BOOST_ASSERT( dispatch::points_begin<Geometry>::apply(geometry)
+                  != dispatch::points_end<Geometry>::apply(geometry) );
+    return *--dispatch::points_end<Geometry>::apply(geometry);
+}
+
+
+
+
 }} // namespace boost::geometry
 
 #endif // BOOST_GEOMETRY_ITERATORS_POINT_ITERATOR_HPP