/extlibs/Boost/include/boost/mpl/aux_/preprocessed/mwcw/equal_to.hpp

 1
 2// Copyright Aleksey Gurtovoy 2000-2004
 3//
 4// Distributed under the Boost Software License, Version 1.0. 
 5// (See accompanying file LICENSE_1_0.txt or copy at 
 6// http://www.boost.org/LICENSE_1_0.txt)
 7//
 8
 9// Preprocessed version of "boost/mpl/equal_to.hpp" header
10// -- DO NOT modify by hand!
11
12namespace boost { namespace mpl {
13
14template<
15      typename Tag1
16    , typename Tag2
17    >
18struct equal_to_impl
19    : if_c<
20          ( BOOST_MPL_AUX_NESTED_VALUE_WKND(int, Tag1)
21              > BOOST_MPL_AUX_NESTED_VALUE_WKND(int, Tag2)
22            )
23
24        , aux::cast2nd_impl< equal_to_impl< Tag1,Tag1 >,Tag1, Tag2 >
25        , aux::cast1st_impl< equal_to_impl< Tag2,Tag2 >,Tag1, Tag2 >
26        >::type
27{
28};
29
30/// for Digital Mars C++/compilers with no CTPS/TTP support
31template<> struct equal_to_impl< na,na >
32{
33    template< typename U1, typename U2 > struct apply
34    {
35        typedef apply type;
36        BOOST_STATIC_CONSTANT(int, value  = 0);
37    };
38};
39
40template< typename Tag > struct equal_to_impl< na,Tag >
41{
42    template< typename U1, typename U2 > struct apply
43    {
44        typedef apply type;
45        BOOST_STATIC_CONSTANT(int, value  = 0);
46    };
47};
48
49template< typename Tag > struct equal_to_impl< Tag,na >
50{
51    template< typename U1, typename U2 > struct apply
52    {
53        typedef apply type;
54        BOOST_STATIC_CONSTANT(int, value  = 0);
55    };
56};
57
58template< typename T > struct equal_to_tag
59{
60    typedef typename T::tag type;
61};
62
63template<
64      typename BOOST_MPL_AUX_NA_PARAM(N1)
65    , typename BOOST_MPL_AUX_NA_PARAM(N2)
66    >
67struct equal_to
68
69    : equal_to_impl<
70          typename equal_to_tag<N1>::type
71        , typename equal_to_tag<N2>::type
72        >::template apply< N1,N2 >::type
73{
74    BOOST_MPL_AUX_LAMBDA_SUPPORT(2, equal_to, (N1, N2))
75
76};
77
78BOOST_MPL_AUX_NA_SPEC2(2, 2, equal_to)
79
80}}
81
82namespace boost { namespace mpl {
83
84template<>
85struct equal_to_impl< integral_c_tag,integral_c_tag >
86{
87    template< typename N1, typename N2 > struct apply
88
89        : bool_< ( BOOST_MPL_AUX_VALUE_WKND(N1)::value  == BOOST_MPL_AUX_VALUE_WKND(N2)::value ) >
90    {
91    };
92};
93
94}}