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1 | |
2 | #if !defined(BOOST_PP_IS_ITERATING) | |
3 | ||
4 | ///// header body | |
5 | ||
6 | #ifndef BOOST_MPL_QUOTE_HPP_INCLUDED | |
7 | #define BOOST_MPL_QUOTE_HPP_INCLUDED | |
8 | ||
9 | // Copyright Aleksey Gurtovoy 2000-2008 | |
10 | // | |
11 | // Distributed under the Boost Software License, Version 1.0. | |
12 | // (See accompanying file LICENSE_1_0.txt or copy at | |
13 | // http://www.boost.org/LICENSE_1_0.txt) | |
14 | // | |
15 | // See http://www.boost.org/libs/mpl for documentation. | |
16 | ||
17 | // $Id$ | |
18 | // $Date$ | |
19 | // $Revision$ | |
20 | ||
21 | #if !defined(BOOST_MPL_PREPROCESSING_MODE) | |
22 | # include <boost/mpl/void.hpp> | |
23 | # include <boost/mpl/aux_/has_type.hpp> | |
24 | #endif | |
25 | ||
26 | #include <boost/mpl/aux_/config/bcc.hpp> | |
27 | #include <boost/mpl/aux_/config/ttp.hpp> | |
28 | ||
29 | #if defined(BOOST_MPL_CFG_NO_TEMPLATE_TEMPLATE_PARAMETERS) \ | |
30 | && !defined(BOOST_MPL_CFG_BCC590_WORKAROUNDS) | |
31 | # define BOOST_MPL_CFG_NO_QUOTE_TEMPLATE | |
32 | #endif | |
33 | ||
34 | #if !defined(BOOST_MPL_CFG_NO_IMPLICIT_METAFUNCTIONS) \ | |
35 | && defined(BOOST_MPL_CFG_NO_HAS_XXX) | |
36 | # define BOOST_MPL_CFG_NO_IMPLICIT_METAFUNCTIONS | |
37 | #endif | |
38 | ||
39 | #include <boost/mpl/aux_/config/use_preprocessed.hpp> | |
40 | ||
41 | #if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \ | |
42 | && !defined(BOOST_MPL_PREPROCESSING_MODE) | |
43 | ||
44 | # define BOOST_MPL_PREPROCESSED_HEADER quote.hpp | |
45 | # include <boost/mpl/aux_/include_preprocessed.hpp> | |
46 | ||
47 | #else | |
48 | ||
49 | # include <boost/mpl/limits/arity.hpp> | |
50 | # include <boost/mpl/aux_/preprocessor/params.hpp> | |
51 | # include <boost/mpl/aux_/config/ctps.hpp> | |
52 | # include <boost/mpl/aux_/config/workaround.hpp> | |
53 | ||
54 | # include <boost/preprocessor/iterate.hpp> | |
55 | # include <boost/preprocessor/cat.hpp> | |
56 | ||
57 | #if !defined(BOOST_MPL_CFG_NO_QUOTE_TEMPLATE) | |
58 | ||
59 | namespace boost { namespace mpl { | |
60 | ||
61 | #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) | |
62 | ||
63 | template< typename T, bool has_type_ > | |
64 | struct quote_impl | |
65 | // GCC has a problem with metafunction forwarding when T is a | |
66 | // specialization of a template called 'type'. | |
67 | # if BOOST_WORKAROUND(__GNUC__, BOOST_TESTED_AT(4)) \ | |
68 | && BOOST_WORKAROUND(__GNUC_MINOR__, BOOST_TESTED_AT(0)) \ | |
69 | && BOOST_WORKAROUND(__GNUC_PATCHLEVEL__, BOOST_TESTED_AT(2)) | |
70 | { | |
71 | typedef typename T::type type; | |
72 | }; | |
73 | # else | |
74 | : T | |
75 | { | |
76 | }; | |
77 | # endif | |
78 | ||
79 | template< typename T > | |
80 | struct quote_impl<T,false> | |
81 | { | |
82 | typedef T type; | |
83 | }; | |
84 | ||
85 | #else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION | |
86 | ||
87 | template< bool > struct quote_impl | |
88 | { | |
89 | template< typename T > struct result_ | |
90 | : T | |
91 | { | |
92 | }; | |
93 | }; | |
94 | ||
95 | template<> struct quote_impl<false> | |
96 | { | |
97 | template< typename T > struct result_ | |
98 | { | |
99 | typedef T type; | |
100 | }; | |
101 | }; | |
102 | ||
103 | #endif | |
104 | ||
105 | #define BOOST_PP_ITERATION_PARAMS_1 \ | |
106 | (3,(1, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/quote.hpp>)) | |
107 | #include BOOST_PP_ITERATE() | |
108 | ||
109 | }} | |
110 | ||
111 | #endif // BOOST_MPL_CFG_NO_QUOTE_TEMPLATE | |
112 | ||
113 | #endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS | |
114 | #endif // BOOST_MPL_QUOTE_HPP_INCLUDED | |
115 | ||
116 | ///// iteration | |
117 | ||
118 | #else | |
119 | #define i_ BOOST_PP_FRAME_ITERATION(1) | |
120 | ||
121 | template< | |
122 | template< BOOST_MPL_PP_PARAMS(i_, typename P) > class F | |
123 | , typename Tag = void_ | |
124 | > | |
125 | struct BOOST_PP_CAT(quote,i_) | |
126 | { | |
127 | template< BOOST_MPL_PP_PARAMS(i_, typename U) > struct apply | |
128 | #if defined(BOOST_MPL_CFG_BCC590_WORKAROUNDS) | |
129 | { | |
130 | typedef typename quote_impl< | |
131 | F< BOOST_MPL_PP_PARAMS(i_, U) > | |
132 | , aux::has_type< F< BOOST_MPL_PP_PARAMS(i_, U) > >::value | |
133 | >::type type; | |
134 | }; | |
135 | #elif !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) | |
136 | : quote_impl< | |
137 | F< BOOST_MPL_PP_PARAMS(i_, U) > | |
138 | , aux::has_type< F< BOOST_MPL_PP_PARAMS(i_, U) > >::value | |
139 | > | |
140 | { | |
141 | }; | |
142 | #else | |
143 | : quote_impl< aux::has_type< F< BOOST_MPL_PP_PARAMS(i_, U) > >::value > | |
144 | ::template result_< F< BOOST_MPL_PP_PARAMS(i_, U) > > | |
145 | { | |
146 | }; | |
147 | #endif | |
148 | }; | |
149 | ||
150 | #undef i_ | |
151 | #endif // BOOST_PP_IS_ITERATING |