| 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/range/begin.hpp> |
| 19 | #include <boost/range/end.hpp> |
| 20 | #include <boost/range/difference_type.hpp> |
| 21 | |
| 22 | namespace boost |
| 23 | { |
| 24 | |
| 25 | template< class T > |
| 26 | inline BOOST_DEDUCED_TYPENAME range_difference<T>::type |
| 27 | distance( const T& r ) |
| 28 | { |
| 29 | return std::distance( boost::begin( r ), boost::end( r ) ); |
| 30 | } |
| 31 | |
| 32 | } // namespace 'boost' |
| 33 | |
| 34 | #endif |
| 35 |