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| author | Remko Tronçon <git@el-tramo.be> | 2009-06-01 08:48:42 (GMT) |
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| committer | Remko Tronçon <git@el-tramo.be> | 2009-06-01 09:24:28 (GMT) |
| commit | 2812bddd81f8a1b804c7460f4e14cd0aa393d129 (patch) | |
| tree | d46294f35150c4f0f43deaf2d31fceaf945ae715 /3rdParty/Boost/boost/detail/reference_content.hpp | |
| download | swift-contrib-2812bddd81f8a1b804c7460f4e14cd0aa393d129.zip swift-contrib-2812bddd81f8a1b804c7460f4e14cd0aa393d129.tar.bz2 | |
Import.
Diffstat (limited to '3rdParty/Boost/boost/detail/reference_content.hpp')
| -rw-r--r-- | 3rdParty/Boost/boost/detail/reference_content.hpp | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/3rdParty/Boost/boost/detail/reference_content.hpp b/3rdParty/Boost/boost/detail/reference_content.hpp new file mode 100644 index 0000000..daf56a8 --- /dev/null +++ b/3rdParty/Boost/boost/detail/reference_content.hpp @@ -0,0 +1,141 @@ +//----------------------------------------------------------------------------- +// 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 |