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1 | |
2 | #ifndef BOOST_MPL_AUX_VALUE_WKND_HPP_INCLUDED | |
3 | #define BOOST_MPL_AUX_VALUE_WKND_HPP_INCLUDED | |
4 | ||
5 | // Copyright Aleksey Gurtovoy 2000-2004 | |
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/aux_/static_cast.hpp> | |
18 | #include <boost/mpl/aux_/config/integral.hpp> | |
19 | #include <boost/mpl/aux_/config/eti.hpp> | |
20 | #include <boost/mpl/aux_/config/workaround.hpp> | |
21 | ||
22 | #if defined(BOOST_MPL_CFG_BCC_INTEGRAL_CONSTANTS) \ | |
23 | || defined(BOOST_MPL_CFG_MSVC_60_ETI_BUG) | |
24 | ||
25 | # include <boost/mpl/int.hpp> | |
26 | ||
27 | namespace boost { namespace mpl { namespace aux { | |
28 | template< typename C_ > struct value_wknd | |
29 | : C_ | |
30 | { | |
31 | }; | |
32 | ||
33 | #if defined(BOOST_MPL_CFG_MSVC_60_ETI_BUG) | |
34 | template<> struct value_wknd<int> | |
35 | : int_<1> | |
36 | { | |
37 | using int_<1>::value; | |
38 | }; | |
39 | #endif | |
40 | }}} | |
41 | ||
42 | ||
43 | #if !defined(BOOST_MPL_CFG_MSVC_60_ETI_BUG) | |
44 | # define BOOST_MPL_AUX_VALUE_WKND(C) \ | |
45 | ::BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE::aux::value_wknd< C > \ | |
46 | /**/ | |
47 | # define BOOST_MPL_AUX_MSVC_VALUE_WKND(C) BOOST_MPL_AUX_VALUE_WKND(C) | |
48 | #else | |
49 | # define BOOST_MPL_AUX_VALUE_WKND(C) C | |
50 | # define BOOST_MPL_AUX_MSVC_VALUE_WKND(C) \ | |
51 | ::boost::mpl::aux::value_wknd< C > \ | |
52 | /**/ | |
53 | #endif | |
54 | ||
55 | #else // BOOST_MPL_CFG_BCC_INTEGRAL_CONSTANTS | |
56 | ||
57 | # define BOOST_MPL_AUX_VALUE_WKND(C) C | |
58 | # define BOOST_MPL_AUX_MSVC_VALUE_WKND(C) C | |
59 | ||
60 | #endif | |
61 | ||
62 | #if BOOST_WORKAROUND(__EDG_VERSION__, <= 238) | |
63 | # define BOOST_MPL_AUX_NESTED_VALUE_WKND(T, C) \ | |
64 | BOOST_MPL_AUX_STATIC_CAST(T, C::value) \ | |
65 | /**/ | |
66 | #else | |
67 | # define BOOST_MPL_AUX_NESTED_VALUE_WKND(T, C) \ | |
68 | BOOST_MPL_AUX_VALUE_WKND(C)::value \ | |
69 | /**/ | |
70 | #endif | |
71 | ||
72 | ||
73 | namespace boost { namespace mpl { namespace aux { | |
74 | ||
75 | template< typename T > struct value_type_wknd | |
76 | { | |
77 | typedef typename T::value_type type; | |
78 | }; | |
79 | ||
80 | #if defined(BOOST_MPL_CFG_MSVC_ETI_BUG) | |
81 | template<> struct value_type_wknd<int> | |
82 | { | |
83 | typedef int type; | |
84 | }; | |
85 | #endif | |
86 | ||
87 | }}} | |
88 | ||
89 | #endif // BOOST_MPL_AUX_VALUE_WKND_HPP_INCLUDED |