ceph/src/boost/libs/mpl/include/boost/mpl/apply_wrap.hpp

   1
   2 #if !defined(BOOST_PP_IS_ITERATING)
   3
   4 ///// header body
   5
   6 #ifndef BOOST_MPL_APPLY_WRAP_HPP_INCLUDED
   7 #define BOOST_MPL_APPLY_WRAP_HPP_INCLUDED
   8
   9 // Copyright Aleksey Gurtovoy 2000-2008
  10 //
  11 // Distributed under the Boost Software License, Version 1.0.
  12 // (See accompanying file LICENSE_1_0.txt or copy at
  13 // http://www.boost.org/LICENSE_1_0.txt)
  14 //
  15 // See http://www.boost.org/libs/mpl for documentation.
  16
  17 // $Id$
  18 // $Date$
  19 // $Revision$
  20
  21 #if !defined(BOOST_MPL_PREPROCESSING_MODE)
  22 #   include <boost/mpl/aux_/arity.hpp>
  23 #   include <boost/mpl/aux_/has_apply.hpp>
  24 #   include <boost/mpl/aux_/na.hpp>
  25 #   include <boost/mpl/aux_/msvc_never_true.hpp>
  26 #endif
  27
  28 #include <boost/mpl/aux_/config/use_preprocessed.hpp>
  29
  30 #if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \
  31     && !defined(BOOST_MPL_PREPROCESSING_MODE)
  32
  33 #   define BOOST_MPL_PREPROCESSED_HEADER apply_wrap.hpp
  34 #   include <boost/mpl/aux_/include_preprocessed.hpp>
  35
  36 #else
  37
  38 #   include <boost/mpl/limits/arity.hpp>
  39 #   include <boost/mpl/aux_/preprocessor/params.hpp>
  40 #   include <boost/mpl/aux_/preprocessor/enum.hpp>
  41 #   include <boost/mpl/aux_/preprocessor/add.hpp>
  42 #   include <boost/mpl/aux_/config/bcc.hpp>
  43 #   include <boost/mpl/aux_/config/ctps.hpp>
  44 #   include <boost/mpl/aux_/config/dtp.hpp>
  45 #   include <boost/mpl/aux_/config/eti.hpp>
  46 #   include <boost/mpl/aux_/config/msvc.hpp>
  47 #   include <boost/mpl/aux_/config/workaround.hpp>
  48
  49 #   include <boost/preprocessor/comma_if.hpp>
  50 #   include <boost/preprocessor/logical/and.hpp>
  51 #   include <boost/preprocessor/inc.hpp>
  52 #   include <boost/preprocessor/iterate.hpp>
  53
  54
  55 namespace boost { namespace mpl {
  56
  57 // local macros, #undef-ined at the end of the header
  58 #   define AUX778076_APPLY_WRAP_PARAMS(n, param) \
  59     BOOST_MPL_PP_PARAMS(n, param) \
  60     /**/
  61
  62 #   define AUX778076_APPLY_WRAP_SPEC_PARAMS(n, param) \
  63     BOOST_MPL_PP_ENUM(BOOST_PP_INC(n), param) \
  64     /**/
  65
  66
  67 #define BOOST_PP_ITERATION_PARAMS_1 \
  68     (3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/apply_wrap.hpp>))
  69 #include BOOST_PP_ITERATE()
  70
  71
  72 #   undef AUX778076_APPLY_WRAP_SPEC_PARAMS
  73 #   undef AUX778076_APPLY_WRAP_PARAMS
  74
  75 }}
  76
  77 #endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
  78 #endif // BOOST_MPL_APPLY_WRAP_HPP_INCLUDED
  79
  80 ///// iteration, depth == 1
  81
  82 // For gcc 4.4 compatability, we must include the
  83 // BOOST_PP_ITERATION_DEPTH test inside an #else clause.
  84 #else // BOOST_PP_IS_ITERATING
  85 #if BOOST_PP_ITERATION_DEPTH() == 1
  86
  87 #   define i_ BOOST_PP_FRAME_ITERATION(1)
  88
  89 #   if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
  90 // MSVC version
  91
  92 #define AUX778076_MSVC_DTW_NAME BOOST_PP_CAT(msvc_apply,i_)
  93 #define AUX778076_MSVC_DTW_ORIGINAL_NAME apply
  94 #define AUX778076_MSVC_DTW_ARITY i_
  95 #include <boost/mpl/aux_/msvc_dtw.hpp>
  96
  97 template<
  98       typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
  99     >
 100 struct BOOST_PP_CAT(apply_wrap,i_)
 101 {
 102     // Metafunction forwarding confuses vc6
 103     typedef typename BOOST_PP_CAT(msvc_apply,i_)<F>::template result_<
 104           AUX778076_APPLY_WRAP_PARAMS(i_, T)
 105         >::type type;
 106 };
 107
 108 #   elif defined(BOOST_MPL_CFG_BROKEN_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES)
 109 // MWCW/Borland version
 110
 111 template<
 112       int N, typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
 113     >
 114 struct BOOST_PP_CAT(apply_wrap_impl,i_);
 115
 116 #define BOOST_PP_ITERATION_PARAMS_2 \
 117     (3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY - i_, <boost/mpl/apply_wrap.hpp>))
 118 #include BOOST_PP_ITERATE()
 119
 120 template<
 121       typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
 122     >
 123 struct BOOST_PP_CAT(apply_wrap,i_)
 124     : BOOST_PP_CAT(apply_wrap_impl,i_)<
 125           ::boost::mpl::aux::arity<F,i_>::value
 126         , F
 127         BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, T)
 128         >::type
 129 {
 130 };
 131
 132 #   else
 133 // ISO98 C++, with minor concession to vc7
 134
 135 template<
 136       typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
 137 #if i_ == 0
 138     , typename has_apply_ = typename aux::has_apply<F>::type
 139 #endif
 140     >
 141 struct BOOST_PP_CAT(apply_wrap,i_)
 142 // metafunction forwarding confuses MSVC 7.0
 143 #if !BOOST_WORKAROUND(BOOST_MSVC, == 1300)
 144     : F::template apply< AUX778076_APPLY_WRAP_PARAMS(i_, T) >
 145 {
 146 #else
 147 {
 148     typedef typename F::template apply<
 149          AUX778076_APPLY_WRAP_PARAMS(i_, T)
 150         >::type type;
 151 #endif
 152 };
 153
 154 #if i_ == 0 && !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
 155 template< typename F >
 156 struct BOOST_PP_CAT(apply_wrap,i_)<F,true_>
 157     : F::apply
 158 {
 159 };
 160 #endif
 161
 162 #   endif // workarounds
 163
 164 #if defined(BOOST_MPL_CFG_MSVC_ETI_BUG)
 165 /// workaround for ETI bug
 166 template<>
 167 struct BOOST_PP_CAT(apply_wrap,i_)<AUX778076_APPLY_WRAP_SPEC_PARAMS(i_, int)>
 168 {
 169     typedef int type;
 170 };
 171 #endif
 172
 173 #   undef i_
 174
 175 ///// iteration, depth == 2
 176
 177 #elif BOOST_PP_ITERATION_DEPTH() == 2
 178
 179 #   define j_ BOOST_PP_FRAME_ITERATION(2)
 180
 181 #if i_ == 0 && j_ == 0 \
 182     && defined(BOOST_MPL_CFG_BCC590_WORKAROUNDS) \
 183     && !defined(BOOST_MPL_CFG_NO_HAS_APPLY)
 184
 185 template< typename F, bool F_has_apply >
 186 struct apply_wrap_impl0_bcb {
 187     typedef typename F::template apply< na > type;
 188 };
 189
 190 template< typename F >
 191 struct apply_wrap_impl0_bcb< F, true > {
 192     typedef typename F::apply type;
 193 };
 194
 195 template<
 196       typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
 197     >
 198 struct BOOST_PP_CAT(apply_wrap_impl,i_)<
 199           BOOST_MPL_PP_ADD(i_, j_)
 200         , F
 201         BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, T)
 202         >
 203 {
 204     typedef apply_wrap_impl0_bcb< F, aux::has_apply< F >::value >::type type;
 205 };
 206 #else
 207
 208 template<
 209       typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
 210     >
 211 struct BOOST_PP_CAT(apply_wrap_impl,i_)<
 212           BOOST_MPL_PP_ADD(i_, j_)
 213         , F
 214         BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, T)
 215         >
 216 {
 217     typedef typename F::template apply<
 218           AUX778076_APPLY_WRAP_PARAMS(i_, T)
 219 #if i_ == 0 && j_ == 0
 220 /// since the defaults are "lost", we have to pass *something* even for nullary
 221 /// metafunction classes
 222         na
 223 #else
 224         BOOST_PP_COMMA_IF(BOOST_PP_AND(i_, j_)) BOOST_MPL_PP_ENUM(j_, na)
 225 #endif
 226         > type;
 227 };
 228
 229 #endif
 230
 231 #   undef j_
 232
 233 #endif // BOOST_PP_ITERATION_DEPTH()
 234 #endif // BOOST_PP_IS_ITERATING