Line data    Source code

       1             : // Boost.Range library
       2             : //
       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)
       7             : //
       8             : // For more information, see http://www.boost.org/libs/range/
       9             : //
      10             : 
      11             : #ifndef BOOST_RANGE_DISTANCE_HPP
      12             : #define BOOST_RANGE_DISTANCE_HPP
      13             : 
      14             : #if defined(_MSC_VER)
      15             : # pragma once
      16             : #endif
      17             : 
      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>
      22             : 
      23             : namespace boost
      24             : {
      25             : 
      26             :     namespace range_distance_adl_barrier
      27             :     {
      28             :         template< class T >
      29             :         inline BOOST_CXX14_CONSTEXPR BOOST_DEDUCED_TYPENAME range_difference<T>::type
      30           0 :         distance( const T& r )
      31             :         {
      32           0 :             return boost::iterators::distance( boost::begin( r ), boost::end( r ) );
      33             :         }
      34             :     }
      35             : 
      36             :     using namespace range_distance_adl_barrier;
      37             : 
      38             : } // namespace 'boost'
      39             : 
      40             : #endif