1 
2 #ifndef BOOST_MPL_PAIR_HPP_INCLUDED
3 #define BOOST_MPL_PAIR_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_/msvc_eti_base.hpp>
18 #include <boost/mpl/aux_/na_spec.hpp>
19 #include <boost/mpl/aux_/lambda_support.hpp>
20 #include <boost/mpl/aux_/config/eti.hpp>
21 
22 namespace boost { namespace mpl {
23 
24 template<
25       typename BOOST_MPL_AUX_NA_PARAM(T1)
26     , typename BOOST_MPL_AUX_NA_PARAM(T2)
27     >
28 struct pair
29 {
30     typedef pair type;
31     typedef T1 first;
32     typedef T2 second;
33 
34     BOOST_MPL_AUX_LAMBDA_SUPPORT(2,pair,(T1,T2))
35 };
36 
37 template<
38       typename BOOST_MPL_AUX_NA_PARAM(P)
39     >
40 struct first
41 {
42 #if !defined(BOOST_MPL_CFG_MSVC_70_ETI_BUG)
43     typedef typename P::first type;
44 #else
45     typedef typename aux::msvc_eti_base<P>::first type;
46 #endif
47     BOOST_MPL_AUX_LAMBDA_SUPPORT(1,first,(P))
48 };
49 
50 template<
51       typename BOOST_MPL_AUX_NA_PARAM(P)
52     >
53 struct second
54 {
55 #if !defined(BOOST_MPL_CFG_MSVC_70_ETI_BUG)
56     typedef typename P::second type;
57 #else
58     typedef typename aux::msvc_eti_base<P>::second type;
59 #endif
60     BOOST_MPL_AUX_LAMBDA_SUPPORT(1,second,(P))
61 };
62 
63 
64 BOOST_MPL_AUX_NA_SPEC_NO_ETI(2, pair)
65 BOOST_MPL_AUX_NA_SPEC(1, first)
66 BOOST_MPL_AUX_NA_SPEC(1, second)
67 
68 }}
69 
70 #endif // BOOST_MPL_PAIR_HPP_INCLUDED
71