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epoc32/include/stdapis/boost/mpl/vector/aux_/item.hpp
author William Roberts <williamr@symbian.org>
Wed, 31 Mar 2010 12:33:34 +0100 (2010-03-31)
branchSymbian3
changeset 4 837f303aceeb
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 #ifndef BOOST_MPL_VECTOR_AUX_ITEM_HPP_INCLUDED

     3 #define BOOST_MPL_VECTOR_AUX_ITEM_HPP_INCLUDED

     4 

     5 // Copyright Aleksey Gurtovoy 2000-2004

     6 //

     7 // Distributed under the Boost Software License, Version 1.0. 

     8 // (See accompanying file LICENSE_1_0.txt or copy at 

     9 // http://www.boost.org/LICENSE_1_0.txt)

    10 //

    11 // See http://www.boost.org/libs/mpl for documentation.

    12 

    13 // $Source: /cvsroot/boost/boost/boost/mpl/vector/aux_/item.hpp,v $

    14 // $Date: 2005/05/15 00:39:04 $

    15 // $Revision: 1.8 $

    16 

    17 #include <boost/mpl/long.hpp>

    18 #include <boost/mpl/void.hpp>

    19 #include <boost/mpl/next_prior.hpp>

    20 #include <boost/mpl/aux_/type_wrapper.hpp>

    21 #include <boost/mpl/aux_/config/typeof.hpp>

    22 #include <boost/mpl/aux_/config/ctps.hpp>

    23 

    24 namespace boost { namespace mpl {

    25 

    26 #if defined(BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES)

    27 

    28 template< 

    29       typename T

    30     , typename Base

    31     , int at_front = 0

    32     >

    33 struct v_item

    34     : Base

    35 {

    36     typedef typename Base::upper_bound_ index_;

    37     typedef typename next<index_>::type upper_bound_;

    38     typedef typename next<typename Base::size>::type size;

    39     typedef Base base;

    40     typedef v_item type;

    41 

    42     // agurt 10/sep/04: MWCW <= 9.3 workaround here and below; the compiler

    43     // breaks if using declaration comes _before_ the new overload

    44     static aux::type_wrapper<T> item_(index_);

    45     using Base::item_;

    46 };

    47 

    48 template<

    49       typename T

    50     , typename Base

    51     >

    52 struct v_item<T,Base,1>

    53     : Base

    54 {

    55     typedef typename prior<typename Base::lower_bound_>::type index_;

    56     typedef index_ lower_bound_;

    57     typedef typename next<typename Base::size>::type size;

    58     typedef Base base;

    59     typedef v_item type;

    60 

    61     static aux::type_wrapper<T> item_(index_);

    62     using Base::item_;

    63 };

    64 

    65 // "erasure" item

    66 template< 

    67       typename Base

    68     , int at_front

    69     >

    70 struct v_mask

    71     : Base

    72 {

    73     typedef typename prior<typename Base::upper_bound_>::type index_;

    74     typedef index_ upper_bound_;

    75     typedef typename prior<typename Base::size>::type size;

    76     typedef Base base;

    77     typedef v_mask type;

    78 

    79     static aux::type_wrapper<void_> item_(index_);

    80     using Base::item_;

    81 };

    82 

    83 template< 

    84       typename Base

    85     >

    86 struct v_mask<Base,1>

    87     : Base

    88 {

    89     typedef typename Base::lower_bound_ index_;

    90     typedef typename next<index_>::type lower_bound_;

    91     typedef typename prior<typename Base::size>::type size;

    92     typedef Base base;

    93     typedef v_mask type;

    94 

    95     static aux::type_wrapper<void_> item_(index_);

    96     using Base::item_;

    97 };

    98 

    99 #endif // BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES

   100 

   101 }}

   102 

   103 #endif // BOOST_MPL_VECTOR_AUX_ITEM_HPP_INCLUDED
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