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author | Remko Tronçon <git@el-tramo.be> | 2010-08-08 18:41:53 (GMT) |
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committer | Remko Tronçon <git@el-tramo.be> | 2010-08-08 18:41:53 (GMT) |
commit | 19df82042f44c201e5a2821b4fa35465e33a1c90 (patch) | |
tree | 1746bddfa31ce2a6488ef5186036a049a255c9da /3rdParty/Boost/src/boost/variant/detail/enable_recursive_fwd.hpp | |
parent | 4a5a0977f661bf5c7c34ee7aa48b35073a682203 (diff) | |
download | swift-19df82042f44c201e5a2821b4fa35465e33a1c90.zip swift-19df82042f44c201e5a2821b4fa35465e33a1c90.tar.bz2 |
Added XEP-0004 data forms parsing & serializing.
Diffstat (limited to '3rdParty/Boost/src/boost/variant/detail/enable_recursive_fwd.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/variant/detail/enable_recursive_fwd.hpp | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/variant/detail/enable_recursive_fwd.hpp b/3rdParty/Boost/src/boost/variant/detail/enable_recursive_fwd.hpp new file mode 100644 index 0000000..3336c1f --- /dev/null +++ b/3rdParty/Boost/src/boost/variant/detail/enable_recursive_fwd.hpp @@ -0,0 +1,116 @@ +//----------------------------------------------------------------------------- +// boost variant/detail/enable_recursive_fwd.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_VARIANT_DETAIL_ENABLE_RECURSIVE_FWD_HPP +#define BOOST_VARIANT_DETAIL_ENABLE_RECURSIVE_FWD_HPP + +#include "boost/mpl/aux_/config/ctps.hpp" + +#include "boost/mpl/bool_fwd.hpp" + +#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) +# include "boost/mpl/bool.hpp" +#else +# include "boost/type_traits/is_base_and_derived.hpp" +#endif + +namespace boost { +namespace detail { namespace variant { + +/////////////////////////////////////////////////////////////////////////////// +// (detail) tag recursive_flag +// +// Signifies that the variant should perform recursive substituion. +// + +#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) + +template <typename T> +struct recursive_flag +{ + typedef T type; +}; + +#else // defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) + +struct recursive_flag_tag +{ +}; + +template <typename T> +struct recursive_flag + : recursive_flag_tag +{ + typedef T type; +}; + +#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION workaround + +/////////////////////////////////////////////////////////////////////////////// +// (detail) metafunction is_recursive_flag +// +// Signifies that the variant should perform recursive substituion. +// + +#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) + +template <typename T> +struct is_recursive_flag + : mpl::false_ +{ +}; + +template <typename T> +struct is_recursive_flag< recursive_flag<T> > + : mpl::true_ +{ +}; + +#else // defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) + +template <typename T> +struct is_recursive_flag + : is_base_and_derived< recursive_flag_tag,T > +{ +}; + +#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION workaround + +/////////////////////////////////////////////////////////////////////////////// +// (detail) metafunction enable_recursive +// +// Attempts recursive_variant_ tag substitution, wrapping with +// boost::recursive_wrapper if substituion occurs w/ non-indirect result +// (i.e., not a reference or pointer) *and* NoWrapper is false_. +// +template < + typename T + , typename RecursiveVariant + , typename NoWrapper = mpl::false_ + > +struct enable_recursive; + +/////////////////////////////////////////////////////////////////////////////// +// (detail) metafunction class quoted_enable_recursive +// +// Same behavior as enable_recursive metafunction (see above). +// +template < + typename RecursiveVariant + , typename NoWrapper = mpl::false_ + > +struct quoted_enable_recursive; + +}} // namespace detail::variant +} // namespace boost + +#endif // BOOST_VARIANT_DETAIL_ENABLE_RECURSIVE_FWD_HPP |