epoc32/include/stdapis/boost/mpl/apply_wrap.hpp
author William Roberts <williamr@symbian.org>
Wed, 31 Mar 2010 12:33:34 +0100
branchSymbian3
changeset 4 837f303aceeb
parent 3 e1b950c65cb4
permissions -rw-r--r--
Current Symbian^3 public API header files (from PDK 3.0.h)
This is the epoc32/include tree with the "platform" subtrees removed, and
all but a selected few mbg and rsg files removed.
     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 2000-2004
    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 // $Source: /cvsroot/boost/boost/boost/mpl/apply_wrap.hpp,v $
    18 // $Date: 2004/09/03 15:56:55 $
    19 // $Revision: 1.3 $
    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/dtp.hpp>
    43 #   include <boost/mpl/aux_/config/eti.hpp>
    44 #   include <boost/mpl/aux_/config/ctps.hpp>
    45 #   include <boost/mpl/aux_/config/msvc.hpp>
    46 #   include <boost/mpl/aux_/config/workaround.hpp>
    47 
    48 #   include <boost/preprocessor/comma_if.hpp>
    49 #   include <boost/preprocessor/logical/and.hpp>
    50 #   include <boost/preprocessor/inc.hpp>
    51 #   include <boost/preprocessor/iterate.hpp>
    52 
    53 
    54 namespace boost { namespace mpl {
    55 
    56 // local macros, #undef-ined at the end of the header
    57 #   define AUX778076_APPLY_WRAP_PARAMS(n, param) \
    58     BOOST_MPL_PP_PARAMS(n, param) \
    59     /**/
    60 
    61 #   define AUX778076_APPLY_WRAP_SPEC_PARAMS(n, param) \
    62     BOOST_MPL_PP_ENUM(BOOST_PP_INC(n), param) \
    63     /**/
    64 
    65 
    66 #define BOOST_PP_ITERATION_PARAMS_1 \
    67     (3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/apply_wrap.hpp>))
    68 #include BOOST_PP_ITERATE()
    69 
    70 
    71 #   undef AUX778076_APPLY_WRAP_SPEC_PARAMS
    72 #   undef AUX778076_APPLY_WRAP_PARAMS
    73 
    74 }}
    75 
    76 #endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS
    77 #endif // BOOST_MPL_APPLY_WRAP_HPP_INCLUDED
    78 
    79 ///// iteration, depth == 1
    80 
    81 #elif BOOST_PP_ITERATION_DEPTH() == 1
    82 
    83 #   define i_ BOOST_PP_FRAME_ITERATION(1)
    84 
    85 #   if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
    86 // MSVC version
    87 
    88 #define AUX778076_MSVC_DTW_NAME BOOST_PP_CAT(msvc_apply,i_)
    89 #define AUX778076_MSVC_DTW_ORIGINAL_NAME apply
    90 #define AUX778076_MSVC_DTW_ARITY i_
    91 #include <boost/mpl/aux_/msvc_dtw.hpp>
    92 
    93 template<
    94       typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
    95     >
    96 struct BOOST_PP_CAT(apply_wrap,i_)
    97 {
    98     // Metafunction forwarding confuses vc6
    99     typedef typename BOOST_PP_CAT(msvc_apply,i_)<F>::template result_<
   100           AUX778076_APPLY_WRAP_PARAMS(i_, T)
   101         >::type type;
   102 };
   103 
   104 #   elif defined(BOOST_MPL_CFG_BROKEN_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES)
   105 // MWCW/Borland version
   106 
   107 template<
   108       int N, typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
   109     >
   110 struct BOOST_PP_CAT(apply_wrap_impl,i_);
   111 
   112 #define BOOST_PP_ITERATION_PARAMS_2 \
   113     (3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY - i_, <boost/mpl/apply_wrap.hpp>))
   114 #include BOOST_PP_ITERATE()
   115 
   116 template<
   117       typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
   118     >
   119 struct BOOST_PP_CAT(apply_wrap,i_)
   120     : BOOST_PP_CAT(apply_wrap_impl,i_)<
   121           ::boost::mpl::aux::arity<F,i_>::value
   122         , F
   123         BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, T)
   124         >::type
   125 {
   126 };
   127 
   128 #   else
   129 // ISO98 C++, with minor concession to vc7
   130 
   131 template<
   132       typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
   133 #if i_ == 0
   134     , typename has_apply_ = typename aux::has_apply<F>::type
   135 #endif
   136     >
   137 struct BOOST_PP_CAT(apply_wrap,i_)
   138 // metafunction forwarding confuses MSVC 7.0
   139 #if !BOOST_WORKAROUND(BOOST_MSVC, == 1300)
   140     : F::template apply< AUX778076_APPLY_WRAP_PARAMS(i_, T) >
   141 {
   142 #else
   143 {    
   144     typedef typename F::template apply<
   145          AUX778076_APPLY_WRAP_PARAMS(i_, T)
   146         >::type type;
   147 #endif
   148 };
   149 
   150 #if i_ == 0 && !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
   151 template< typename F >
   152 struct BOOST_PP_CAT(apply_wrap,i_)<F,true_>
   153     : F::apply
   154 {
   155 };
   156 #endif
   157 
   158 #   endif // workarounds
   159 
   160 #if defined(BOOST_MPL_CFG_MSVC_ETI_BUG)
   161 /// workaround for ETI bug
   162 template<>
   163 struct BOOST_PP_CAT(apply_wrap,i_)<AUX778076_APPLY_WRAP_SPEC_PARAMS(i_, int)>
   164 {
   165     typedef int type;
   166 };
   167 #endif
   168 
   169 #   undef i_
   170 
   171 ///// iteration, depth == 2
   172 
   173 #elif BOOST_PP_ITERATION_DEPTH() == 2
   174 
   175 #   define j_ BOOST_PP_FRAME_ITERATION(2)
   176 
   177 template<
   178       typename F BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, typename T)
   179     >
   180 struct BOOST_PP_CAT(apply_wrap_impl,i_)<
   181           BOOST_MPL_PP_ADD(i_, j_)
   182         , F
   183         BOOST_PP_COMMA_IF(i_) AUX778076_APPLY_WRAP_PARAMS(i_, T)
   184         >
   185 {
   186     typedef typename F::template apply<
   187           AUX778076_APPLY_WRAP_PARAMS(i_, T)
   188 #if i_ == 0 && j_ == 0
   189 /// since the defaults are "lost", we have to pass *something* even for nullary
   190 /// metafunction classes
   191         na
   192 #else
   193         BOOST_PP_COMMA_IF(BOOST_PP_AND(i_, j_)) BOOST_MPL_PP_ENUM(j_, na)
   194 #endif
   195         > type;
   196 };
   197 
   198 #   undef j_
   199 
   200 #endif // BOOST_PP_IS_ITERATING