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/src/contrib/boost/mpl/pair.hpp

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C++ Header | 70 lines | 47 code | 13 blank | 10 comment | 0 complexity | 7f3b292ae4b2940eaae2c84075bb3b5c MD5 | raw file
 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: pair.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
14// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $
15// $Revision: 49267 $
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
22namespace boost { namespace mpl {
23
24template<
25      typename BOOST_MPL_AUX_NA_PARAM(T1)
26    , typename BOOST_MPL_AUX_NA_PARAM(T2)
27    >
28struct 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
37template<
38      typename BOOST_MPL_AUX_NA_PARAM(P)
39    >
40struct 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
50template<
51      typename BOOST_MPL_AUX_NA_PARAM(P)
52    >
53struct 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
64BOOST_MPL_AUX_NA_SPEC_NO_ETI(2, pair)
65BOOST_MPL_AUX_NA_SPEC(1, first)
66BOOST_MPL_AUX_NA_SPEC(1, second)
67
68}}
69
70#endif // BOOST_MPL_PAIR_HPP_INCLUDED