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Jeff Thompsona28eed82013-08-22 16:21:10 -07001
2#ifndef BOOST_MPL_AUX_SIZE_IMPL_HPP_INCLUDED
3#define BOOST_MPL_AUX_SIZE_IMPL_HPP_INCLUDED
4
5// Copyright Aleksey Gurtovoy 2000-2004
6//
7// Distributed under the Boost Software License, Version 1.0.
8// (See accompanying file LICENSE_1_0.txt or copy at
9// http://www.boost.org/LICENSE_1_0.txt)
10//
11// See http://www.boost.org/libs/mpl for documentation.
12
13// $Id: size_impl.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
14// $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $
15// $Revision: 49267 $
16
17#include <ndnboost/mpl/size_fwd.hpp>
18#include <ndnboost/mpl/begin_end.hpp>
19#include <ndnboost/mpl/distance.hpp>
20#include <ndnboost/mpl/aux_/traits_lambda_spec.hpp>
21#include <ndnboost/mpl/aux_/config/workaround.hpp>
22
23namespace ndnboost { namespace mpl {
24
25// default implementation; conrete sequences might override it by
26// specializing either the 'size_impl' or the primary 'size' template
27
28template< typename Tag >
29struct size_impl
30{
31 template< typename Sequence > struct apply
32#if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x561))
33 : distance<
34 typename begin<Sequence>::type
35 , typename end<Sequence>::type
36 >
37 {
38#else
39 {
40 typedef typename distance<
41 typename begin<Sequence>::type
42 , typename end<Sequence>::type
43 >::type type;
44#endif
45 };
46};
47
48BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(1, size_impl)
49
50}}
51
52#endif // BOOST_MPL_AUX_SIZE_IMPL_HPP_INCLUDED