1
2#ifndef BOOST_MPL_AUX_MSVC_ETI_BASE_HPP_INCLUDED
3#define BOOST_MPL_AUX_MSVC_ETI_BASE_HPP_INCLUDED
4
5// Copyright Aleksey Gurtovoy 2001-2004
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// $Id$
14// $Date$
15// $Revision$
16
17#include <boost/mpl/aux_/is_msvc_eti_arg.hpp>
18#include <boost/mpl/aux_/config/eti.hpp>
19#include <boost/mpl/aux_/config/gcc.hpp>
20#include <boost/mpl/aux_/config/workaround.hpp>
21
22namespace boost { namespace mpl { namespace aux {
23
24#if defined(BOOST_MPL_CFG_MSVC_70_ETI_BUG)
25
26template< bool > struct msvc_eti_base_impl
27{
28 template< typename T > struct result_
29 : T
30 {
31 typedef T type;
32 };
33};
34
35template<> struct msvc_eti_base_impl<true>
36{
37 template< typename T > struct result_
38 {
39 typedef result_ type;
40 typedef result_ first;
41 typedef result_ second;
42 typedef result_ tag;
43 enum { value = 0 };
44 };
45};
46
47template< typename T > struct msvc_eti_base
48 : msvc_eti_base_impl< is_msvc_eti_arg<T>::value >
49 ::template result_<T>
50{
51};
52
53#else // !BOOST_MPL_CFG_MSVC_70_ETI_BUG
54
55template< typename T > struct msvc_eti_base
56 : T
57{
58#if BOOST_WORKAROUND(BOOST_MPL_CFG_GCC, BOOST_TESTED_AT(0x0304))
59 msvc_eti_base();
60#endif
61 typedef T type;
62};
63
64#endif
65
66template<> struct msvc_eti_base<int>
67{
68 typedef msvc_eti_base type;
69 typedef msvc_eti_base first;
70 typedef msvc_eti_base second;
71 typedef msvc_eti_base tag;
72 enum { value = 0 };
73};
74
75}}}
76
77#endif // BOOST_MPL_AUX_MSVC_ETI_BASE_HPP_INCLUDED
78