source: NonGTP/Boost/boost/multi_index/detail/msvc_index_specifier.hpp @ 857

Revision 857, 1.7 KB checked in by igarcia, 19 years ago (diff)
Line 
1/* Copyright 2003-2005 Joaquín M López Muñoz.
2 * Distributed under the Boost Software License, Version 1.0.
3 * (See accompanying file LICENSE_1_0.txt or copy at
4 * http://www.boost.org/LICENSE_1_0.txt)
5 *
6 * See http://www.boost.org/libs/multi_index for library home page.
7 */
8
9#ifndef BOOST_MULTI_INDEX_DETAIL_MSVC_INDEX_SPECIFIER_HPP
10#define BOOST_MULTI_INDEX_DETAIL_MSVC_INDEX_SPECIFIER_HPP
11
12#if defined(_MSC_VER)&&(_MSC_VER>=1200)
13#pragma once
14#endif
15
16#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
17#include <boost/detail/workaround.hpp>
18
19#if BOOST_WORKAROUND(BOOST_MSVC,<1310)
20/* Workaround for a problem in MSVC with dependent template typedefs
21 * when accesing index specifiers.
22 * Modeled after <boost/mpl/aux_/msvc_dtw.hpp> (thanks, Aleksey!)
23 */
24
25#include <boost/mpl/aux_/msvc_never_true.hpp>
26
27namespace boost{
28
29namespace multi_index{
30
31namespace detail{
32
33template<typename IndexSpecifier>
34struct msvc_index_specifier
35{
36  template<bool> struct fake_index_type:IndexSpecifier{};
37  template<> struct fake_index_type<true>
38  {
39    template<typename Super>
40    struct node_class{};
41
42    template<typename Super>
43    struct index_class{};
44  };
45
46  template<typename Super>
47  struct result_node_class:
48    fake_index_type<mpl::aux::msvc_never_true<IndexSpecifier>::value>::
49      template node_class<Super>
50  {
51  };
52
53  template<typename Super>
54  struct result_index_class:
55    fake_index_type<mpl::aux::msvc_never_true<IndexSpecifier>::value>::
56      template index_class<Super>
57  {
58  };
59};
60
61} /* namespace multi_index::detail */
62
63} /* namespace multi_index */
64
65} /* namespace boost */
66
67#endif /* workaround */
68
69#endif
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