epoc32/include/stdapis/boost/multi_index/detail/unbounded.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 /* Copyright 2003-2006 Joaquín M López Muñoz.
     2  * Distributed under the Boost Software License, Version 1.0.
     3  * (See accompanying file LICENSE_1_0.txt or copy at
     4  * http://www.boost.org/LICENSE_1_0.txt)
     5  *
     6  * See http://www.boost.org/libs/multi_index for library home page.
     7  */
     8 
     9 #ifndef BOOST_MULTI_INDEX_DETAIL_UNBOUNDED_HPP
    10 #define BOOST_MULTI_INDEX_DETAIL_UNBOUNDED_HPP
    11 
    12 #if defined(_MSC_VER)&&(_MSC_VER>=1200)
    13 #pragma once
    14 #endif
    15 
    16 #include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
    17 #include <boost/detail/workaround.hpp>
    18 
    19 namespace boost{
    20 
    21 namespace multi_index{
    22 
    23 /* dummy type and variable for use in ordered_index::range() */
    24 
    25 namespace detail{
    26 
    27 struct unbounded_type{};
    28 
    29 } /* namespace multi_index::detail */
    30 
    31 namespace{
    32 
    33 #if BOOST_WORKAROUND(BOOST_MSVC,<1300)
    34 /* The default branch actually works for MSVC 6.0, but seems like
    35  * the const qualifier reduces the performance of ordered indices! This
    36  * behavior is hard to explain and probably a test artifact, but it
    37  * does not hurt to have the workaround anyway.
    38  */
    39 
    40 static detail::unbounded_type  unbounded_obj=detail::unbounded_type();
    41 static detail::unbounded_type& unbounded=unbounded_obj;
    42 #else
    43 const detail::unbounded_type unbounded=detail::unbounded_type();
    44 #endif
    45 
    46 } /* unnamed */
    47 
    48 } /* namespace multi_index */
    49 
    50 } /* namespace boost */
    51 
    52 #endif