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
22namespace 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