3 // Copyright Thorsten Ottosen 2003-2006. Use, modification and
4 // distribution is subject to the Boost Software License, Version
5 // 1.0. (See accompanying file LICENSE_1_0.txt or copy at
6 // http://www.boost.org/LICENSE_1_0.txt)
8 // For more information, see http://www.boost.org/libs/range/
11 #ifndef BOOST_RANGE_DISTANCE_HPP
12 #define BOOST_RANGE_DISTANCE_HPP
18 #include <boost/iterator/distance.hpp>
19 #include <boost/range/begin.hpp>
20 #include <boost/range/end.hpp>
21 #include <boost/range/difference_type.hpp>
26 namespace range_distance_adl_barrier
29 inline BOOST_CXX14_CONSTEXPR BOOST_DEDUCED_TYPENAME range_difference<T>::type
30 distance( const T& r )
32 return boost::iterators::distance( boost::begin( r ), boost::end( r ) );
36 using namespace range_distance_adl_barrier;
38 } // namespace 'boost'