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1 | #if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES) |
2 | ||
3 | #include <boost/proto/transform/detail/preprocessed/expand_pack.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/expand_pack.hpp") | |
9 | #endif | |
10 | ||
11 | /////////////////////////////////////////////////////////////////////////////// | |
12 | /// \file expand_pack.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_PROTO_MAX_ARITY, <boost/proto/transform/detail/expand_pack.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 | #define N BOOST_PP_ITERATION() | |
33 | #define M0(Z, X, DATA) typename expand_pattern_helper<Tfx, BOOST_PP_CAT(A, X)>::type | |
34 | #define M1(Z, X, DATA) expand_pattern_helper<Tfx, BOOST_PP_CAT(A, X)>::applied::value || | |
35 | ||
36 | template<typename Tfx, typename Ret BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)> | |
37 | struct expand_pattern_helper<Tfx, Ret(BOOST_PP_ENUM_PARAMS(N, A))> | |
38 | { | |
39 | typedef Ret (*type)(BOOST_PP_ENUM(N, M0, ~)); | |
40 | typedef mpl::bool_<BOOST_PP_REPEAT(N, M1, ~) false> applied; | |
41 | }; | |
42 | ||
43 | #undef M1 | |
44 | #undef M0 | |
45 | #undef N | |
46 | #endif |