Chris@102: // Boost.Geometry (aka GGL, Generic Geometry Library)
Chris@102: 
Chris@102: // Copyright (c) 2014, Oracle and/or its affiliates.
Chris@102: 
Chris@102: // Contributed and/or modified by Menelaos Karavelas, on behalf of Oracle
Chris@102: 
Chris@102: // Licensed under the Boost Software License version 1.0.
Chris@102: // http://www.boost.org/users/license.html
Chris@102: 
Chris@102: #ifndef BOOST_GEOMETRY_ITERATORS_HAS_ONE_ELEMENT_HPP
Chris@102: #define BOOST_GEOMETRY_ITERATORS_HAS_ONE_ELEMENT_HPP
Chris@102: 
Chris@102: 
Chris@102: namespace boost { namespace geometry
Chris@102: {
Chris@102: 
Chris@102: 
Chris@102: // free function to test if an iterator range has a single element
Chris@102: template <typename Iterator>
Chris@102: inline bool has_one_element(Iterator first, Iterator beyond)
Chris@102: {
Chris@102:     return first != beyond && ++first == beyond;
Chris@102: }
Chris@102: 
Chris@102: 
Chris@102: }} // namespace boost::geometry
Chris@102: 
Chris@102: 
Chris@102: #endif // BOOST_GEOMETRY_ITERATORS_HAS_ONE_ELEMENT_HPP