ceph/src/boost/boost/mpl/vector/aux_/numbered.hpp

   1
   2 // NO INCLUDE GUARDS, THE HEADER IS INTENDED FOR MULTIPLE INCLUSION
   3
   4 #if defined(BOOST_PP_IS_ITERATING)
   5
   6 // Copyright Aleksey Gurtovoy 2000-2004
   7 //
   8 // Distributed under the Boost Software License, Version 1.0.
   9 // (See accompanying file LICENSE_1_0.txt or copy at
  10 // http://www.boost.org/LICENSE_1_0.txt)
  11 //
  12 // See http://www.boost.org/libs/mpl for documentation.
  13
  14 // $Id$
  15 // $Date$
  16 // $Revision$
  17
  18 #include <boost/preprocessor/enum_params.hpp>
  19 #include <boost/preprocessor/enum_shifted_params.hpp>
  20 #include <boost/preprocessor/comma_if.hpp>
  21 #include <boost/preprocessor/repeat.hpp>
  22 #include <boost/preprocessor/dec.hpp>
  23 #include <boost/preprocessor/cat.hpp>
  24
  25 #define i_ BOOST_PP_FRAME_ITERATION(1)
  26
  27 #if defined(BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES)
  28
  29 #   define AUX778076_VECTOR_TAIL(vector, i_, T) \
  30     BOOST_PP_CAT(vector,i_)< \
  31           BOOST_PP_ENUM_PARAMS(i_, T) \
  32         > \
  33     /**/
  34
  35 #if i_ > 0
  36 template<
  37       BOOST_PP_ENUM_PARAMS(i_, typename T)
  38     >
  39 struct BOOST_PP_CAT(vector,i_)
  40     : v_item<
  41           BOOST_PP_CAT(T,BOOST_PP_DEC(i_))
  42         , AUX778076_VECTOR_TAIL(vector,BOOST_PP_DEC(i_),T)
  43         >
  44 {
  45     typedef BOOST_PP_CAT(vector,i_) type;
  46 };
  47 #endif
  48
  49 #   undef AUX778076_VECTOR_TAIL
  50
  51 #else // "brute force" implementation
  52
  53 #   if i_ > 0
  54
  55 template<
  56       BOOST_PP_ENUM_PARAMS(i_, typename T)
  57     >
  58 struct BOOST_PP_CAT(vector,i_)
  59 {
  60     typedef aux::vector_tag<i_> tag;
  61     typedef BOOST_PP_CAT(vector,i_) type;
  62
  63 #   define AUX778076_VECTOR_ITEM(unused, i_, unused2) \
  64     typedef BOOST_PP_CAT(T,i_) BOOST_PP_CAT(item,i_); \
  65     /**/
  66
  67     BOOST_PP_REPEAT(i_, AUX778076_VECTOR_ITEM, unused)
  68 #   undef AUX778076_VECTOR_ITEM
  69     typedef void_ BOOST_PP_CAT(item,i_);
  70     typedef BOOST_PP_CAT(T,BOOST_PP_DEC(i_)) back;
  71
  72     // Borland forces us to use 'type' here (instead of the class name)
  73     typedef v_iter<type,0> begin;
  74     typedef v_iter<type,i_> end;
  75 };
  76
  77 template<>
  78 struct push_front_impl< aux::vector_tag<BOOST_PP_DEC(i_)> >
  79 {
  80     template< typename Vector, typename T > struct apply
  81     {
  82         typedef BOOST_PP_CAT(vector,i_)<
  83               T
  84               BOOST_PP_COMMA_IF(BOOST_PP_DEC(i_))
  85               BOOST_PP_ENUM_PARAMS(BOOST_PP_DEC(i_), typename Vector::item)
  86             > type;
  87     };
  88 };
  89
  90 template<>
  91 struct pop_front_impl< aux::vector_tag<i_> >
  92 {
  93     template< typename Vector > struct apply
  94     {
  95         typedef BOOST_PP_CAT(vector,BOOST_PP_DEC(i_))<
  96               BOOST_PP_ENUM_SHIFTED_PARAMS(i_, typename Vector::item)
  97             > type;
  98     };
  99 };
 100
 101
 102 template<>
 103 struct push_back_impl< aux::vector_tag<BOOST_PP_DEC(i_)> >
 104 {
 105     template< typename Vector, typename T > struct apply
 106     {
 107         typedef BOOST_PP_CAT(vector,i_)<
 108               BOOST_PP_ENUM_PARAMS(BOOST_PP_DEC(i_), typename Vector::item)
 109               BOOST_PP_COMMA_IF(BOOST_PP_DEC(i_))
 110               T
 111             > type;
 112     };
 113 };
 114
 115 template<>
 116 struct pop_back_impl< aux::vector_tag<i_> >
 117 {
 118     template< typename Vector > struct apply
 119     {
 120         typedef BOOST_PP_CAT(vector,BOOST_PP_DEC(i_))<
 121               BOOST_PP_ENUM_PARAMS(BOOST_PP_DEC(i_), typename Vector::item)
 122             > type;
 123     };
 124 };
 125
 126 #   endif // i_ > 0
 127
 128 #   if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
 129     && !defined(BOOST_MPL_CFG_NO_NONTYPE_TEMPLATE_PARTIAL_SPEC)
 130
 131 template< typename V >
 132 struct v_at<V,i_>
 133 {
 134     typedef typename V::BOOST_PP_CAT(item,i_) type;
 135 };
 136
 137 #   else
 138
 139 namespace aux {
 140 template<> struct v_at_impl<i_>
 141 {
 142     template< typename V_ > struct result_
 143     {
 144         typedef typename V_::BOOST_PP_CAT(item,i_) type;
 145     };
 146 };
 147 }
 148
 149 template<>
 150 struct at_impl< aux::vector_tag<i_> >
 151 {
 152     template< typename V_, typename N > struct apply
 153     {
 154         typedef typename aux::v_at_impl<BOOST_MPL_AUX_VALUE_WKND(N)::value>
 155             ::template result_<V_>::type type;
 156     };
 157 };
 158
 159 #if i_ > 0
 160 template<>
 161 struct front_impl< aux::vector_tag<i_> >
 162 {
 163     template< typename Vector > struct apply
 164     {
 165         typedef typename Vector::item0 type;
 166     };
 167 };
 168
 169 template<>
 170 struct back_impl< aux::vector_tag<i_> >
 171 {
 172     template< typename Vector > struct apply
 173     {
 174         typedef typename Vector::back type;
 175     };
 176 };
 177
 178 template<>
 179 struct empty_impl< aux::vector_tag<i_> >
 180 {
 181     template< typename Vector > struct apply
 182         : false_
 183     {
 184     };
 185 };
 186 #endif
 187
 188 template<>
 189 struct size_impl< aux::vector_tag<i_> >
 190 {
 191     template< typename Vector > struct apply
 192         : long_<i_>
 193     {
 194     };
 195 };
 196
 197 template<>
 198 struct O1_size_impl< aux::vector_tag<i_> >
 199     : size_impl< aux::vector_tag<i_> >
 200 {
 201 };
 202
 203 template<>
 204 struct clear_impl< aux::vector_tag<i_> >
 205 {
 206     template< typename Vector > struct apply
 207     {
 208         typedef vector0<> type;
 209     };
 210 };
 211
 212 #   endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
 213
 214 #endif // BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES
 215
 216 #undef i_
 217
 218 #endif // BOOST_PP_IS_ITERATING