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}}
95