/usr/include/boost/detail/reference_content.hpp is in libboost1.46-dev 1.46.1-7ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 | //-----------------------------------------------------------------------------
// boost detail/reference_content.hpp header file
// See http://www.boost.org for updates, documentation, and revision history.
//-----------------------------------------------------------------------------
//
// Copyright (c) 2003
// Eric Friedman
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_DETAIL_REFERENCE_CONTENT_HPP
#define BOOST_DETAIL_REFERENCE_CONTENT_HPP
#include "boost/config.hpp"
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
# include "boost/mpl/bool.hpp"
# include "boost/type_traits/has_nothrow_copy.hpp"
#else
# include "boost/mpl/if.hpp"
# include "boost/type_traits/is_reference.hpp"
#endif
#include "boost/mpl/void.hpp"
namespace boost {
namespace detail {
///////////////////////////////////////////////////////////////////////////////
// (detail) class template reference_content
//
// Non-Assignable wrapper for references.
//
template <typename RefT>
class reference_content
{
private: // representation
RefT content_;
public: // structors
~reference_content()
{
}
reference_content(RefT r)
: content_( r )
{
}
reference_content(const reference_content& operand)
: content_( operand.content_ )
{
}
private: // non-Assignable
reference_content& operator=(const reference_content&);
public: // queries
RefT get() const
{
return content_;
}
};
///////////////////////////////////////////////////////////////////////////////
// (detail) metafunction make_reference_content
//
// Wraps with reference_content if specified type is reference.
//
template <typename T = mpl::void_> struct make_reference_content;
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
template <typename T>
struct make_reference_content
{
typedef T type;
};
template <typename T>
struct make_reference_content< T& >
{
typedef reference_content<T&> type;
};
#else // defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
template <typename T>
struct make_reference_content
: mpl::if_<
is_reference<T>
, reference_content<T>
, T
>
{
};
#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION workaround
template <>
struct make_reference_content< mpl::void_ >
{
template <typename T>
struct apply
: make_reference_content<T>
{
};
typedef mpl::void_ type;
};
} // namespace detail
///////////////////////////////////////////////////////////////////////////////
// reference_content<T&> type traits specializations
//
#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
template <typename T>
struct has_nothrow_copy<
::boost::detail::reference_content< T& >
>
: mpl::true_
{
};
#endif // !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
} // namespace boost
#endif // BOOST_DETAIL_REFERENCE_CONTENT_HPP
|