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1 #if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES)
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2
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3 #include <boost/proto/detail/preprocessed/generate_by_value.hpp>
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4
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5 #elif !defined(BOOST_PP_IS_ITERATING)
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6
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7 #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
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8 #pragma wave option(preserve: 2, line: 0, output: "preprocessed/generate_by_value.hpp")
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9 #endif
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10
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11 ///////////////////////////////////////////////////////////////////////////////
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12 /// \file generate_by_value.hpp
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13 /// Contains definition of by_value_generator_\<\> class template.
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14 //
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15 // Copyright 2008 Eric Niebler. Distributed under the Boost
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16 // Software License, Version 1.0. (See accompanying file
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17 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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18
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19 #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
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20 #pragma wave option(preserve: 1)
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21 #endif
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22
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23 #define BOOST_PP_ITERATION_PARAMS_1 \
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24 (3, (1, BOOST_PROTO_MAX_ARITY, <boost/proto/detail/generate_by_value.hpp>))
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25 #include BOOST_PP_ITERATE()
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26
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27 #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
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28 #pragma wave option(output: null)
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29 #endif
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30
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31 #else // BOOST_PP_IS_ITERATING
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32
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33 #define N BOOST_PP_ITERATION()
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34
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35 template<typename Tag BOOST_PP_ENUM_TRAILING_PARAMS(N, typename Arg) >
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36 struct by_value_generator_<
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37 proto::expr<Tag, BOOST_PP_CAT(list, N)<BOOST_PP_ENUM_PARAMS(N, Arg)>, N>
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38 >
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39 {
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40 typedef
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41 BOOST_PP_CAT(list, N)<BOOST_PP_ENUM_PARAMS(N, Arg)>
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42 src_args;
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43
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44 typedef
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45 BOOST_PP_CAT(list, N)<
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46 BOOST_PP_ENUM_BINARY_PARAMS(N, typename uncvref<Arg, >::type BOOST_PP_INTERCEPT)
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47 >
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48 dst_args;
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49
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50 typedef proto::expr<Tag, src_args, N> src_type;
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51 typedef proto::expr<Tag, dst_args, N> type;
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52
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53 BOOST_FORCEINLINE
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54 static type const call(src_type const &e)
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55 {
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56 type that = {
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57 BOOST_PP_ENUM_PARAMS(N, e.child)
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58 };
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59 return that;
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60 }
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61 };
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62
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63 template<typename Tag BOOST_PP_ENUM_TRAILING_PARAMS(N, typename Arg) >
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64 struct by_value_generator_<
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65 proto::basic_expr<Tag, BOOST_PP_CAT(list, N)<BOOST_PP_ENUM_PARAMS(N, Arg)>, N>
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66 >
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67 {
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68 typedef
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69 BOOST_PP_CAT(list, N)<BOOST_PP_ENUM_PARAMS(N, Arg)>
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70 src_args;
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71
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72 typedef
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73 BOOST_PP_CAT(list, N)<
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74 BOOST_PP_ENUM_BINARY_PARAMS(N, typename uncvref<Arg, >::type BOOST_PP_INTERCEPT)
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75 >
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76 dst_args;
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77
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78 typedef proto::basic_expr<Tag, src_args, N> src_type;
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79 typedef proto::basic_expr<Tag, dst_args, N> type;
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80
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81 BOOST_FORCEINLINE
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82 static type const call(src_type const &e)
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83 {
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84 type that = {
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85 BOOST_PP_ENUM_PARAMS(N, e.child)
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86 };
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87 return that;
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88 }
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89 };
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90
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91 #undef N
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92
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93 #endif
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