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1 | |
2 | #ifndef BOOST_MPL_REPLACE_IF_HPP_INCLUDED | |
3 | #define BOOST_MPL_REPLACE_IF_HPP_INCLUDED | |
4 | ||
5 | // Copyright Aleksey Gurtovoy 2000-2004 | |
6 | // Copyright John R. Bandela 2000-2002 | |
7 | // Copyright David Abrahams 2003-2004 | |
8 | // | |
9 | // Distributed under the Boost Software License, Version 1.0. | |
10 | // (See accompanying file LICENSE_1_0.txt or copy at | |
11 | // http://www.boost.org/LICENSE_1_0.txt) | |
12 | // | |
13 | // See http://www.boost.org/libs/mpl for documentation. | |
14 | ||
15 | // $Id$ | |
16 | // $Date$ | |
17 | // $Revision$ | |
18 | ||
19 | #include <boost/mpl/transform.hpp> | |
20 | #include <boost/mpl/apply.hpp> | |
21 | #include <boost/mpl/if.hpp> | |
22 | #include <boost/mpl/aux_/inserter_algorithm.hpp> | |
23 | #include <boost/mpl/aux_/config/forwarding.hpp> | |
24 | ||
25 | namespace boost { namespace mpl { | |
26 | ||
27 | namespace aux { | |
28 | ||
29 | template< typename Predicate, typename T > | |
30 | struct replace_if_op | |
31 | { | |
32 | template< typename U > struct apply | |
33 | #if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING) | |
34 | : if_< | |
35 | typename apply1<Predicate,U>::type | |
36 | , T | |
37 | , U | |
38 | > | |
39 | { | |
40 | #else | |
41 | { | |
42 | typedef typename if_< | |
43 | typename apply1<Predicate,U>::type | |
44 | , T | |
45 | , U | |
46 | >::type type; | |
47 | #endif | |
48 | }; | |
49 | }; | |
50 | ||
51 | ||
52 | template< | |
53 | typename Sequence | |
54 | , typename Predicate | |
55 | , typename T | |
56 | , typename Inserter | |
57 | > | |
58 | struct replace_if_impl | |
59 | : transform1_impl< | |
60 | Sequence | |
61 | , protect< aux::replace_if_op<Predicate,T> > | |
62 | , Inserter | |
63 | > | |
64 | { | |
65 | }; | |
66 | ||
67 | template< | |
68 | typename Sequence | |
69 | , typename Predicate | |
70 | , typename T | |
71 | , typename Inserter | |
72 | > | |
73 | struct reverse_replace_if_impl | |
74 | : reverse_transform1_impl< | |
75 | Sequence | |
76 | , protect< aux::replace_if_op<Predicate,T> > | |
77 | , Inserter | |
78 | > | |
79 | { | |
80 | }; | |
81 | ||
82 | } // namespace aux | |
83 | ||
84 | BOOST_MPL_AUX_INSERTER_ALGORITHM_DEF(4, replace_if) | |
85 | ||
86 | }} | |
87 | ||
88 | #endif // BOOST_MPL_REPLACE_IF_HPP_INCLUDED |