stc/exp/ml_stc_linux_make_v1.0/include/boost/mpl/vector/aux_/iterator.hpp

   1 \r
   2 #ifndef BOOST_MPL_AUX_VECTOR_ITERATOR_HPP_INCLUDED\r
   3 #define BOOST_MPL_AUX_VECTOR_ITERATOR_HPP_INCLUDED\r
   4 \r
   5 // Copyright Aleksey Gurtovoy 2000-2004\r
   6 //\r
   7 // Distributed under the Boost Software License, Version 1.0. \r
   8 // (See accompanying file LICENSE_1_0.txt or copy at \r
   9 // http://www.boost.org/LICENSE_1_0.txt)\r
  10 //\r
  11 // See http://www.boost.org/libs/mpl for documentation.\r
  12 \r
  13 // $Id: iterator.hpp 49267 2008-10-11 06:19:02Z agurtovoy $\r
  14 // $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $\r
  15 // $Revision: 49267 $\r
  16 \r
  17 #include <boost/mpl/vector/aux_/at.hpp>\r
  18 #include <boost/mpl/iterator_tags.hpp>\r
  19 #include <boost/mpl/plus.hpp>\r
  20 #include <boost/mpl/minus.hpp>\r
  21 #include <boost/mpl/advance_fwd.hpp>\r
  22 #include <boost/mpl/distance_fwd.hpp>\r
  23 #include <boost/mpl/next.hpp>\r
  24 #include <boost/mpl/prior.hpp>\r
  25 #include <boost/mpl/aux_/nttp_decl.hpp>\r
  26 #include <boost/mpl/aux_/value_wknd.hpp>\r
  27 #include <boost/mpl/aux_/config/ctps.hpp>\r
  28 #include <boost/mpl/aux_/config/workaround.hpp>\r
  29 \r
  30 namespace boost { namespace mpl {\r
  31 \r
  32 template<\r
  33       typename Vector\r
  34     , BOOST_MPL_AUX_NTTP_DECL(long, n_)\r
  35     >\r
  36 struct v_iter\r
  37 {\r
  38     typedef aux::v_iter_tag tag;\r
  39     typedef random_access_iterator_tag category;\r
  40     typedef typename v_at<Vector,n_>::type type;\r
  41 \r
  42     typedef Vector vector_;\r
  43     typedef mpl::long_<n_> pos;\r
  44 \r
  45 #if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)\r
  46     enum { \r
  47           next_ = n_ + 1\r
  48         , prior_ = n_ - 1\r
  49         , pos_ = n_\r
  50     };\r
  51     \r
  52     typedef v_iter<Vector,next_> next;\r
  53     typedef v_iter<Vector,prior_> prior;\r
  54 #endif\r
  55 \r
  56 };\r
  57 \r
  58 \r
  59 #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)\r
  60 \r
  61 template<\r
  62       typename Vector\r
  63     , BOOST_MPL_AUX_NTTP_DECL(long, n_)\r
  64     >\r
  65 struct next< v_iter<Vector,n_> >\r
  66 {\r
  67     typedef v_iter<Vector,(n_ + 1)> type;\r
  68 };\r
  69 \r
  70 template<\r
  71       typename Vector\r
  72     , BOOST_MPL_AUX_NTTP_DECL(long, n_)\r
  73     >\r
  74 struct prior< v_iter<Vector,n_> >\r
  75 {\r
  76     typedef v_iter<Vector,(n_ - 1)> type;\r
  77 };\r
  78 \r
  79 template<\r
  80       typename Vector\r
  81     , BOOST_MPL_AUX_NTTP_DECL(long, n_)\r
  82     , typename Distance\r
  83     >\r
  84 struct advance< v_iter<Vector,n_>,Distance>\r
  85 {\r
  86     typedef v_iter<\r
  87           Vector\r
  88         , (n_ + BOOST_MPL_AUX_NESTED_VALUE_WKND(long, Distance))\r
  89         > type;\r
  90 };\r
  91 \r
  92 template< \r
  93       typename Vector\r
  94     , BOOST_MPL_AUX_NTTP_DECL(long, n_)\r
  95     , BOOST_MPL_AUX_NTTP_DECL(long, m_)\r
  96     > \r
  97 struct distance< v_iter<Vector,n_>, v_iter<Vector,m_> >\r
  98     : mpl::long_<(m_ - n_)>\r
  99 {\r
 100 };\r
 101 \r
 102 #else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION\r
 103 \r
 104 template<> struct advance_impl<aux::v_iter_tag>\r
 105 {\r
 106     template< typename Iterator, typename N > struct apply\r
 107     {\r
 108         enum { pos_ = Iterator::pos_, n_ = N::value };\r
 109         typedef v_iter<\r
 110               typename Iterator::vector_\r
 111             , (pos_ + n_)\r
 112             > type;\r
 113     };\r
 114 };\r
 115 \r
 116 template<> struct distance_impl<aux::v_iter_tag>\r
 117 {\r
 118     template< typename Iter1, typename Iter2 > struct apply\r
 119     {\r
 120         enum { pos1_ = Iter1::pos_, pos2_ = Iter2::pos_ };\r
 121         typedef long_<( pos2_ - pos1_ )> type;\r
 122         BOOST_STATIC_CONSTANT(long, value = ( pos2_ - pos1_ ));\r
 123     };\r
 124 };\r
 125 \r
 126 #endif\r
 127 \r
 128 }}\r
 129 \r
 130 #endif // BOOST_MPL_AUX_VECTOR_ITERATOR_HPP_INCLUDED\r