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 the main "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 
98