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1 | #if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES) |
2 | ||
3 | #include <boost/proto/transform/detail/preprocessed/pack_impl.hpp> | |
4 | ||
5 | #elif !defined(BOOST_PP_IS_ITERATING) | |
6 | ||
7 | #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) | |
8 | #pragma wave option(preserve: 2, line: 0, output: "preprocessed/pack_impl.hpp") | |
9 | #endif | |
10 | ||
11 | /////////////////////////////////////////////////////////////////////////////// | |
12 | /// \file pack_impl.hpp | |
13 | /// Contains helpers for pseudo-pack expansion. | |
14 | // | |
15 | // Copyright 2012 Eric Niebler. Distributed under the Boost | |
16 | // Software License, Version 1.0. (See accompanying file | |
17 | // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
18 | ||
19 | #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) | |
20 | #pragma wave option(preserve: 1) | |
21 | #endif | |
22 | ||
23 | #define BOOST_PP_ITERATION_PARAMS_1 \ | |
24 | (3, (0, BOOST_PP_DEC(BOOST_PROTO_MAX_ARITY), <boost/proto/transform/detail/pack_impl.hpp>)) | |
25 | #include BOOST_PP_ITERATE() | |
26 | ||
27 | #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES) | |
28 | #pragma wave option(output: null) | |
29 | #endif | |
30 | ||
31 | #else | |
32 | #if BOOST_PP_ITERATION_DEPTH() == 1 | |
33 | #define N BOOST_PP_ITERATION() | |
34 | #define M BOOST_PP_SUB(BOOST_PROTO_MAX_ARITY, N) | |
35 | #define M0(Z, X, D) typename expand_pattern_helper<proto::_child_c<X>, Fun>::type | |
36 | ||
37 | template<typename Fun, typename Cont> | |
38 | struct expand_pattern<BOOST_PP_INC(N), Fun, Cont> | |
39 | : Cont::template cat<BOOST_PP_ENUM(BOOST_PP_INC(N), M0, ~)> | |
40 | { | |
41 | BOOST_MPL_ASSERT_MSG( | |
42 | (expand_pattern_helper<proto::_child_c<0>, Fun>::applied::value) | |
43 | , NO_PACK_EXPRESSION_FOUND_IN_UNPACKING_PATTERN | |
44 | , (Fun) | |
45 | ); | |
46 | }; | |
47 | ||
48 | template<typename Ret BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)> | |
49 | struct BOOST_PP_CAT(expand_pattern_rest_, N) | |
50 | { | |
51 | template<BOOST_PP_ENUM_PARAMS_WITH_A_DEFAULT(BOOST_PP_INC(M), typename C, void)> | |
52 | struct cat; | |
53 | ||
54 | #define BOOST_PP_ITERATION_PARAMS_2 \ | |
55 | (3, (1, M, <boost/proto/transform/detail/pack_impl.hpp>)) | |
56 | #include BOOST_PP_ITERATE() | |
57 | }; | |
58 | #undef M0 | |
59 | #undef M | |
60 | #undef N | |
61 | #else | |
62 | #define I BOOST_PP_ITERATION() | |
63 | #define J BOOST_PP_RELATIVE_ITERATION(1) | |
64 | template<BOOST_PP_ENUM_PARAMS(I, typename C)> | |
65 | struct cat<BOOST_PP_ENUM_PARAMS(I, C)> | |
66 | { | |
67 | typedef msvc_fun_workaround<Ret(BOOST_PP_ENUM_PARAMS(J, A) BOOST_PP_COMMA_IF(J) BOOST_PP_ENUM_PARAMS(I, C))> type; | |
68 | }; | |
69 | #undef J | |
70 | #undef I | |
71 | #endif | |
72 | #endif |