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 | distance( const T& r ) |
31 | { |
32 | 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 |
41 |