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2 | #if !defined(BOOST_PP_IS_ITERATING) |
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3 | |
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4 | ///// header body |
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5 | |
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6 | #ifndef BOOST_MPL_QUOTE_HPP_INCLUDED |
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7 | #define BOOST_MPL_QUOTE_HPP_INCLUDED |
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8 | |
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9 | // Copyright Aleksey Gurtovoy 2000-2008 |
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10 | // |
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11 | // Distributed under the Boost Software License, Version 1.0. |
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12 | // (See accompanying file LICENSE_1_0.txt or copy at |
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13 | // http://www.boost.org/LICENSE_1_0.txt) |
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14 | // |
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15 | // See http://www.boost.org/libs/mpl for documentation. |
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16 | |
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17 | // $Id$ |
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18 | // $Date: 2008-10-11 02:50:46 -0400 (Sat, 11 Oct 2008) $ |
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19 | // $Revision: 49272 $ |
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20 | |
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21 | #if !defined(BOOST_MPL_PREPROCESSING_MODE) |
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22 | # include <boost/mpl/void.hpp> |
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23 | # include <boost/mpl/aux_/has_type.hpp> |
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24 | #endif |
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25 | |
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26 | #include <boost/mpl/aux_/config/bcc.hpp> |
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27 | #include <boost/mpl/aux_/config/ttp.hpp> |
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28 | |
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29 | #if defined(BOOST_MPL_CFG_NO_TEMPLATE_TEMPLATE_PARAMETERS) \ |
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30 | && !defined(BOOST_MPL_CFG_BCC590_WORKAROUNDS) |
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31 | # define BOOST_MPL_CFG_NO_QUOTE_TEMPLATE |
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32 | #endif |
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33 | |
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34 | #if !defined(BOOST_MPL_CFG_NO_IMPLICIT_METAFUNCTIONS) \ |
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35 | && defined(BOOST_MPL_CFG_NO_HAS_XXX) |
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36 | # define BOOST_MPL_CFG_NO_IMPLICIT_METAFUNCTIONS |
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37 | #endif |
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38 | |
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39 | #include <boost/mpl/aux_/config/use_preprocessed.hpp> |
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40 | |
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41 | #if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \ |
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42 | && !defined(BOOST_MPL_PREPROCESSING_MODE) |
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43 | |
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44 | # define BOOST_MPL_PREPROCESSED_HEADER quote.hpp |
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45 | # include <boost/mpl/aux_/include_preprocessed.hpp> |
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46 | |
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47 | #else |
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48 | |
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49 | # include <boost/mpl/limits/arity.hpp> |
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50 | # include <boost/mpl/aux_/preprocessor/params.hpp> |
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51 | # include <boost/mpl/aux_/config/ctps.hpp> |
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52 | # include <boost/mpl/aux_/config/workaround.hpp> |
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53 | |
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54 | # include <boost/preprocessor/iterate.hpp> |
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55 | # include <boost/preprocessor/cat.hpp> |
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56 | |
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57 | #if !defined(BOOST_MPL_CFG_NO_QUOTE_TEMPLATE) |
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58 | |
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59 | namespace boost { namespace mpl { |
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60 | |
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61 | #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) |
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62 | |
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63 | template< typename T, bool has_type_ > |
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64 | struct quote_impl |
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65 | // GCC has a problem with metafunction forwarding when T is a |
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66 | // specialization of a template called 'type'. |
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67 | # if BOOST_WORKAROUND(__GNUC__, BOOST_TESTED_AT(4)) \ |
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68 | && BOOST_WORKAROUND(__GNUC_MINOR__, BOOST_TESTED_AT(0)) \ |
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69 | && BOOST_WORKAROUND(__GNUC_PATCHLEVEL__, BOOST_TESTED_AT(2)) |
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70 | { |
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71 | typedef typename T::type type; |
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72 | }; |
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73 | # else |
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74 | : T |
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75 | { |
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76 | }; |
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77 | # endif |
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78 | |
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79 | template< typename T > |
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80 | struct quote_impl<T,false> |
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81 | { |
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82 | typedef T type; |
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83 | }; |
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84 | |
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85 | #else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION |
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86 | |
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87 | template< bool > struct quote_impl |
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88 | { |
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89 | template< typename T > struct result_ |
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90 | : T |
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91 | { |
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92 | }; |
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93 | }; |
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94 | |
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95 | template<> struct quote_impl<false> |
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96 | { |
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97 | template< typename T > struct result_ |
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98 | { |
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99 | typedef T type; |
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100 | }; |
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101 | }; |
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102 | |
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103 | #endif |
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104 | |
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105 | #define BOOST_PP_ITERATION_PARAMS_1 \ |
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106 | (3,(1, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/quote.hpp>)) |
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107 | #include BOOST_PP_ITERATE() |
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108 | |
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109 | }} |
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110 | |
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111 | #endif // BOOST_MPL_CFG_NO_QUOTE_TEMPLATE |
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112 | |
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113 | #endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS |
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114 | #endif // BOOST_MPL_QUOTE_HPP_INCLUDED |
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115 | |
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116 | ///// iteration |
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117 | |
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118 | #else |
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119 | #define i_ BOOST_PP_FRAME_ITERATION(1) |
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120 | |
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121 | template< |
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122 | template< BOOST_MPL_PP_PARAMS(i_, typename P) > class F |
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123 | , typename Tag = void_ |
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124 | > |
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125 | struct BOOST_PP_CAT(quote,i_) |
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126 | { |
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127 | template< BOOST_MPL_PP_PARAMS(i_, typename U) > struct apply |
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128 | #if defined(BOOST_MPL_CFG_BCC590_WORKAROUNDS) |
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129 | { |
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130 | typedef typename quote_impl< |
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131 | F< BOOST_MPL_PP_PARAMS(i_, U) > |
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132 | , aux::has_type< F< BOOST_MPL_PP_PARAMS(i_, U) > >::value |
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133 | >::type type; |
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134 | }; |
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135 | #elif !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) |
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136 | : quote_impl< |
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137 | F< BOOST_MPL_PP_PARAMS(i_, U) > |
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138 | , aux::has_type< F< BOOST_MPL_PP_PARAMS(i_, U) > >::value |
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139 | > |
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140 | { |
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141 | }; |
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142 | #else |
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143 | : quote_impl< aux::has_type< F< BOOST_MPL_PP_PARAMS(i_, U) > >::value > |
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144 | ::template result_< F< BOOST_MPL_PP_PARAMS(i_, U) > > |
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145 | { |
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146 | }; |
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147 | #endif |
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148 | }; |
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149 | |
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150 | #undef i_ |
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151 | #endif // BOOST_PP_IS_ITERATING |
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