EVOLUTION-MANAGER

Edit File: has_one_element.hpp

// 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