epoc32/include/stdapis/boost/range/detail/common.hpp
author William Roberts <williamr@symbian.org>
Wed, 31 Mar 2010 12:27:01 +0100
branchSymbian2
changeset 3 e1b950c65cb4
permissions -rw-r--r--
Attempt to represent the S^2->S^3 header reorganisation as a series of "hg rename" operations
     1 // Boost.Range library
     2 //
     3 //  Copyright Thorsten Ottosen 2003-2004. Use, modification and
     4 //  distribution is subject to the Boost Software License, Version
     5 //  1.0. (See accompanying file LICENSE_1_0.txt or copy at
     6 //  http://www.boost.org/LICENSE_1_0.txt)
     7 //
     8 // For more information, see http://www.boost.org/libs/range/
     9 //
    10 
    11 #ifndef BOOST_RANGE_DETAIL_COMMON_HPP
    12 #define BOOST_RANGE_DETAIL_COMMON_HPP
    13 
    14 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
    15 # pragma once
    16 #endif
    17 
    18 #include <boost/range/config.hpp>
    19 #include <boost/range/detail/sfinae.hpp>
    20 #include <boost/type_traits/is_void.hpp>
    21 #include <boost/type_traits/detail/ice_or.hpp>
    22 #include <boost/mpl/if.hpp>
    23 #include <boost/mpl/int.hpp>
    24 #include <cstddef>
    25 
    26 //////////////////////////////////////////////////////////////////////////////
    27 // missing partial specialization  workaround.
    28 //////////////////////////////////////////////////////////////////////////////
    29 
    30 namespace boost 
    31 {
    32     namespace range_detail 
    33     {        
    34         // 1 = std containers
    35         // 2 = std::pair
    36         // 3 = const std::pair
    37         // 4 = array
    38         // 5 = const array
    39         // 6 = char array
    40         // 7 = wchar_t array
    41         // 8 = char*
    42         // 9 = const char*
    43         // 10 = whar_t*
    44         // 11 = const wchar_t*
    45         // 12 = string
    46         
    47         typedef mpl::int_<1>::type    std_container_;
    48         typedef mpl::int_<2>::type    std_pair_;
    49         typedef mpl::int_<3>::type    const_std_pair_;
    50         typedef mpl::int_<4>::type    array_;
    51         typedef mpl::int_<5>::type    const_array_;
    52         typedef mpl::int_<6>::type    char_array_;
    53         typedef mpl::int_<7>::type    wchar_t_array_;
    54         typedef mpl::int_<8>::type    char_ptr_;
    55         typedef mpl::int_<9>::type    const_char_ptr_;
    56         typedef mpl::int_<10>::type   wchar_t_ptr_;
    57         typedef mpl::int_<11>::type   const_wchar_t_ptr_;
    58         typedef mpl::int_<12>::type   string_;
    59         
    60         template< typename C >
    61         struct range_helper
    62         {
    63             static C* c;
    64             static C  ptr;
    65 
    66             BOOST_STATIC_CONSTANT( bool, is_pair_                = sizeof( boost::range_detail::is_pair_impl( c ) ) == sizeof( yes_type ) );
    67             BOOST_STATIC_CONSTANT( bool, is_char_ptr_            = sizeof( boost::range_detail::is_char_ptr_impl( ptr ) ) == sizeof( yes_type ) );
    68             BOOST_STATIC_CONSTANT( bool, is_const_char_ptr_      = sizeof( boost::range_detail::is_const_char_ptr_impl( ptr ) ) == sizeof( yes_type ) );
    69             BOOST_STATIC_CONSTANT( bool, is_wchar_t_ptr_         = sizeof( boost::range_detail::is_wchar_t_ptr_impl( ptr ) ) == sizeof( yes_type ) );
    70             BOOST_STATIC_CONSTANT( bool, is_const_wchar_t_ptr_   = sizeof( boost::range_detail::is_const_wchar_t_ptr_impl( ptr ) ) == sizeof( yes_type ) );
    71             BOOST_STATIC_CONSTANT( bool, is_char_array_          = sizeof( boost::range_detail::is_char_array_impl( ptr ) ) == sizeof( yes_type ) );
    72             BOOST_STATIC_CONSTANT( bool, is_wchar_t_array_       = sizeof( boost::range_detail::is_wchar_t_array_impl( ptr ) ) == sizeof( yes_type ) );
    73             BOOST_STATIC_CONSTANT( bool, is_string_              = (boost::type_traits::ice_or<is_const_char_ptr_, is_const_wchar_t_ptr_>::value ));
    74             BOOST_STATIC_CONSTANT( bool, is_array_               = boost::is_array<C>::value );
    75             
    76         };
    77         
    78         template< typename C >
    79         class range
    80         {
    81             typedef BOOST_RANGE_DEDUCED_TYPENAME   boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_pair_,
    82                                                                   boost::range_detail::std_pair_,
    83                                                                   void >::type pair_t;
    84             typedef BOOST_RANGE_DEDUCED_TYPENAME   boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_array_,
    85                                                                     boost::range_detail::array_,
    86                                                                     pair_t >::type array_t;
    87             typedef BOOST_RANGE_DEDUCED_TYPENAME   boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_string_,
    88                                                                     boost::range_detail::string_,
    89                                                                     array_t >::type string_t;
    90             typedef BOOST_RANGE_DEDUCED_TYPENAME   boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_const_char_ptr_,
    91                                                                     boost::range_detail::const_char_ptr_,
    92                                                                     string_t >::type const_char_ptr_t;
    93             typedef BOOST_RANGE_DEDUCED_TYPENAME   boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_char_ptr_,
    94                                                                     boost::range_detail::char_ptr_,
    95                                                                     const_char_ptr_t >::type char_ptr_t;
    96             typedef BOOST_RANGE_DEDUCED_TYPENAME   boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_const_wchar_t_ptr_,
    97                                                                     boost::range_detail::const_wchar_t_ptr_,
    98                                                                     char_ptr_t >::type const_wchar_ptr_t;
    99             typedef BOOST_RANGE_DEDUCED_TYPENAME   boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_wchar_t_ptr_,
   100                                                                     boost::range_detail::wchar_t_ptr_,
   101                                                                     const_wchar_ptr_t >::type wchar_ptr_t;
   102             typedef BOOST_RANGE_DEDUCED_TYPENAME   boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_wchar_t_array_,
   103                                                                     boost::range_detail::wchar_t_array_,
   104                                                                     wchar_ptr_t >::type wchar_array_t;
   105             typedef BOOST_RANGE_DEDUCED_TYPENAME   boost::mpl::if_c< ::boost::range_detail::range_helper<C>::is_char_array_,
   106                                                                     boost::range_detail::char_array_,
   107                                                                     wchar_array_t >::type char_array_t;
   108         public:
   109             typedef BOOST_RANGE_DEDUCED_TYPENAME   boost::mpl::if_c< ::boost::is_void<char_array_t>::value,
   110                                                                     boost::range_detail::std_container_,
   111                                                                     char_array_t >::type type;  
   112         }; // class 'range' 
   113     }
   114 }
   115         
   116 #endif