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1 | #if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES) |
2 | ||
3 | #include <boost/proto/detail/preprocessed/or_n.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/or_n.hpp") | |
9 | #endif | |
10 | ||
11 | /////////////////////////////////////////////////////////////////////////////// | |
12 | /// \file or_n.hpp | |
13 | /// Definitions of or_N | |
14 | // | |
15 | // Copyright 2008 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, (2, BOOST_PROTO_MAX_LOGICAL_ARITY, <boost/proto/detail/or_n.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 // BOOST_PP_IS_ITERATING | |
32 | ||
33 | #define N BOOST_PP_ITERATION() | |
34 | ||
35 | template<bool B, typename Expr, typename BasicExpr, BOOST_PP_ENUM_PARAMS(N, typename G)> | |
36 | struct BOOST_PP_CAT(or_, N) | |
37 | #if 2 == N | |
38 | : mpl::bool_<matches_<Expr, BasicExpr, typename G1::proto_grammar>::value> | |
39 | { | |
40 | typedef G1 which; | |
41 | }; | |
42 | #else | |
43 | : BOOST_PP_CAT(or_, BOOST_PP_DEC(N))< | |
44 | matches_<Expr, BasicExpr, typename G1::proto_grammar>::value | |
45 | , Expr, BasicExpr, BOOST_PP_ENUM_SHIFTED_PARAMS(N, G) | |
46 | > | |
47 | {}; | |
48 | #endif | |
49 | ||
50 | template<typename Expr, typename BasicExpr BOOST_PP_ENUM_TRAILING_PARAMS(N, typename G)> | |
51 | struct BOOST_PP_CAT(or_, N)<true, Expr, BasicExpr, BOOST_PP_ENUM_PARAMS(N, G)> | |
52 | : mpl::true_ | |
53 | { | |
54 | typedef G0 which; | |
55 | }; | |
56 | ||
57 | #undef N | |
58 | ||
59 | #endif |