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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/aux_/advance_backward.hpp" header | |
10 | // -- DO NOT modify by hand! | |
11 | ||
12 | namespace boost { namespace mpl { namespace aux { | |
13 | ||
14 | template< long N > struct advance_backward; | |
15 | template<> | |
16 | struct advance_backward<0> | |
17 | { | |
18 | template< typename Iterator > struct apply | |
19 | { | |
20 | typedef Iterator iter0; | |
21 | typedef iter0 type; | |
22 | }; | |
23 | }; | |
24 | ||
25 | template<> | |
26 | struct advance_backward<1> | |
27 | { | |
28 | template< typename Iterator > struct apply | |
29 | { | |
30 | typedef Iterator iter0; | |
31 | typedef typename prior<iter0>::type iter1; | |
32 | typedef iter1 type; | |
33 | }; | |
34 | }; | |
35 | ||
36 | template<> | |
37 | struct advance_backward<2> | |
38 | { | |
39 | template< typename Iterator > struct apply | |
40 | { | |
41 | typedef Iterator iter0; | |
42 | typedef typename prior<iter0>::type iter1; | |
43 | typedef typename prior<iter1>::type iter2; | |
44 | typedef iter2 type; | |
45 | }; | |
46 | }; | |
47 | ||
48 | template<> | |
49 | struct advance_backward<3> | |
50 | { | |
51 | template< typename Iterator > struct apply | |
52 | { | |
53 | typedef Iterator iter0; | |
54 | typedef typename prior<iter0>::type iter1; | |
55 | typedef typename prior<iter1>::type iter2; | |
56 | typedef typename prior<iter2>::type iter3; | |
57 | typedef iter3 type; | |
58 | }; | |
59 | }; | |
60 | ||
61 | template<> | |
62 | struct advance_backward<4> | |
63 | { | |
64 | template< typename Iterator > struct apply | |
65 | { | |
66 | typedef Iterator iter0; | |
67 | typedef typename prior<iter0>::type iter1; | |
68 | typedef typename prior<iter1>::type iter2; | |
69 | typedef typename prior<iter2>::type iter3; | |
70 | typedef typename prior<iter3>::type iter4; | |
71 | typedef iter4 type; | |
72 | }; | |
73 | }; | |
74 | ||
75 | template< long N > | |
76 | struct advance_backward | |
77 | { | |
78 | template< typename Iterator > struct apply | |
79 | { | |
80 | typedef typename apply_wrap1< | |
81 | advance_backward<4> | |
82 | , Iterator | |
83 | >::type chunk_result_; | |
84 | ||
85 | typedef typename apply_wrap1< | |
86 | advance_backward<( | |
87 | (N - 4) < 0 | |
88 | ? 0 | |
89 | : N - 4 | |
90 | )> | |
91 | , chunk_result_ | |
92 | >::type type; | |
93 | }; | |
94 | }; | |
95 | ||
96 | }}} | |
97 |