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 |
89 | |