1#if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES)
2
3 #include <boost/proto/detail/preprocessed/generate_by_value.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/generate_by_value.hpp")
9 #endif
10
11 ///////////////////////////////////////////////////////////////////////////////
12 /// \file generate_by_value.hpp
13 /// Contains definition of by_value_generator_\<\> class template.
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, (1, BOOST_PROTO_MAX_ARITY, <boost/proto/detail/generate_by_value.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<typename Tag BOOST_PP_ENUM_TRAILING_PARAMS(N, typename Arg) >
36 struct by_value_generator_<
37 proto::expr<Tag, BOOST_PP_CAT(list, N)<BOOST_PP_ENUM_PARAMS(N, Arg)>, N>
38 >
39 {
40 typedef
41 BOOST_PP_CAT(list, N)<BOOST_PP_ENUM_PARAMS(N, Arg)>
42 src_args;
43
44 typedef
45 BOOST_PP_CAT(list, N)<
46 BOOST_PP_ENUM_BINARY_PARAMS(N, typename uncvref<Arg, >::type BOOST_PP_INTERCEPT)
47 >
48 dst_args;
49
50 typedef proto::expr<Tag, src_args, N> src_type;
51 typedef proto::expr<Tag, dst_args, N> type;
52
53 BOOST_FORCEINLINE
54 static type const call(src_type const &e)
55 {
56 type that = {
57 BOOST_PP_ENUM_PARAMS(N, e.child)
58 };
59 return that;
60 }
61 };
62
63 template<typename Tag BOOST_PP_ENUM_TRAILING_PARAMS(N, typename Arg) >
64 struct by_value_generator_<
65 proto::basic_expr<Tag, BOOST_PP_CAT(list, N)<BOOST_PP_ENUM_PARAMS(N, Arg)>, N>
66 >
67 {
68 typedef
69 BOOST_PP_CAT(list, N)<BOOST_PP_ENUM_PARAMS(N, Arg)>
70 src_args;
71
72 typedef
73 BOOST_PP_CAT(list, N)<
74 BOOST_PP_ENUM_BINARY_PARAMS(N, typename uncvref<Arg, >::type BOOST_PP_INTERCEPT)
75 >
76 dst_args;
77
78 typedef proto::basic_expr<Tag, src_args, N> src_type;
79 typedef proto::basic_expr<Tag, dst_args, N> type;
80
81 BOOST_FORCEINLINE
82 static type const call(src_type const &e)
83 {
84 type that = {
85 BOOST_PP_ENUM_PARAMS(N, e.child)
86 };
87 return that;
88 }
89 };
90
91 #undef N
92
93#endif
94