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