]>
Commit | Line | Data |
---|---|---|
7c673cae FG |
1 | |
2 | #ifndef BOOST_MPL_MULTISET_AUX_COUNT_IMPL_HPP_INCLUDED | |
3 | #define BOOST_MPL_MULTISET_AUX_COUNT_IMPL_HPP_INCLUDED | |
4 | ||
5 | // Copyright Aleksey Gurtovoy 2003-2004 | |
6 | // | |
7 | // Distributed under the Boost Software License, Version 1.0. | |
8 | // (See accompanying file LICENSE_1_0.txt or copy at | |
9 | // http://www.boost.org/LICENSE_1_0.txt) | |
10 | // | |
11 | // See http://www.boost.org/libs/mpl for documentation. | |
12 | ||
13 | // $Id$ | |
14 | // $Date$ | |
15 | // $Revision$ | |
16 | ||
17 | #include <boost/mpl/multiset/aux_/tag.hpp> | |
18 | #include <boost/mpl/count_fwd.hpp> | |
19 | #include <boost/mpl/int.hpp> | |
20 | #include <boost/mpl/aux_/type_wrapper.hpp> | |
21 | #include <boost/mpl/aux_/static_cast.hpp> | |
22 | #include <boost/mpl/aux_/config/static_constant.hpp> | |
23 | #include <boost/mpl/aux_/config/workaround.hpp> | |
24 | #include <boost/mpl/aux_/config/msvc.hpp> | |
25 | ||
26 | #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) | |
27 | # include <boost/mpl/if.hpp> | |
28 | # include <boost/type_traits/is_reference.hpp> | |
29 | #endif | |
30 | ||
31 | namespace boost { namespace mpl { | |
32 | ||
33 | #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) | |
34 | ||
35 | namespace aux { | |
36 | template< typename S, typename U > | |
37 | struct multiset_count_impl | |
38 | : int_< sizeof(S::key_count(BOOST_MPL_AUX_STATIC_CAST(U*,0))) - 1 > | |
39 | { | |
40 | }; | |
41 | ||
42 | template< typename S, typename U > | |
43 | struct multiset_count_ref_impl | |
44 | { | |
45 | typedef U (* u_)(); | |
46 | typedef int_< sizeof(S::ref_key_count(BOOST_MPL_AUX_STATIC_CAST(u_,0))) - 1 > type_; | |
47 | BOOST_STATIC_CONSTANT(int, value = type_::value); | |
48 | typedef type_ type; | |
49 | }; | |
50 | } | |
51 | ||
52 | template<> | |
53 | struct count_impl< aux::multiset_tag > | |
54 | { | |
55 | template< typename Set, typename Key > struct apply | |
56 | : if_< | |
57 | is_reference<Key> | |
58 | , aux::multiset_count_ref_impl<Set,Key> | |
59 | , aux::multiset_count_impl<Set,Key> | |
60 | >::type | |
61 | { | |
62 | }; | |
63 | }; | |
64 | ||
65 | #else | |
66 | ||
67 | template<> | |
68 | struct count_impl< aux::multiset_tag > | |
69 | { | |
70 | template< typename Set, typename Key > struct apply | |
71 | { | |
72 | enum { msvc71_wknd_ = sizeof(Set::key_count(BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<Key>*,0))) - 1 }; | |
73 | typedef int_< msvc71_wknd_ > type; | |
74 | BOOST_STATIC_CONSTANT(int, value = msvc71_wknd_); | |
75 | }; | |
76 | }; | |
77 | ||
78 | #endif // BOOST_WORKAROUND(BOOST_MSVC, <= 1300) | |
79 | ||
80 | }} | |
81 | ||
82 | #endif // BOOST_MPL_MULTISET_AUX_COUNT_IMPL_HPP_INCLUDED |