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| author | Remko Tronçon <git@el-tramo.be> | 2009-06-01 08:48:42 (GMT) |
|---|---|---|
| committer | Remko Tronçon <git@el-tramo.be> | 2009-06-01 09:24:28 (GMT) |
| commit | 2812bddd81f8a1b804c7460f4e14cd0aa393d129 (patch) | |
| tree | d46294f35150c4f0f43deaf2d31fceaf945ae715 /3rdParty/Boost/boost/mpl/is_placeholder.hpp | |
| download | swift-2812bddd81f8a1b804c7460f4e14cd0aa393d129.zip swift-2812bddd81f8a1b804c7460f4e14cd0aa393d129.tar.bz2 | |
Import.
Diffstat (limited to '3rdParty/Boost/boost/mpl/is_placeholder.hpp')
| -rw-r--r-- | 3rdParty/Boost/boost/mpl/is_placeholder.hpp | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/3rdParty/Boost/boost/mpl/is_placeholder.hpp b/3rdParty/Boost/boost/mpl/is_placeholder.hpp new file mode 100644 index 0000000..5b28b47 --- /dev/null +++ b/3rdParty/Boost/boost/mpl/is_placeholder.hpp @@ -0,0 +1,67 @@ + +#ifndef BOOST_MPL_IS_PLACEHOLDER_HPP_INCLUDED +#define BOOST_MPL_IS_PLACEHOLDER_HPP_INCLUDED + +// Copyright Aleksey Gurtovoy 2001-2004 +// +// 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) +// +// See http://www.boost.org/libs/mpl for documentation. + +// $Id: is_placeholder.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ +// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ +// $Revision: 49267 $ + +#include <boost/mpl/arg_fwd.hpp> +#include <boost/mpl/bool.hpp> +#include <boost/mpl/aux_/yes_no.hpp> +#include <boost/mpl/aux_/type_wrapper.hpp> +#include <boost/mpl/aux_/nttp_decl.hpp> +#include <boost/mpl/aux_/config/ctps.hpp> +#include <boost/mpl/aux_/config/static_constant.hpp> + +namespace boost { namespace mpl { + +#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) + +template< typename T > +struct is_placeholder + : bool_<false> +{ +}; + +template< BOOST_MPL_AUX_NTTP_DECL(int, N) > +struct is_placeholder< arg<N> > + : bool_<true> +{ +}; + +#else + +namespace aux { + +aux::no_tag is_placeholder_helper(...); + +template< BOOST_MPL_AUX_NTTP_DECL(int, N) > +aux::yes_tag is_placeholder_helper(aux::type_wrapper< arg<N> >*); + +} // namespace aux + +template< typename T > +struct is_placeholder +{ + static aux::type_wrapper<T>* get(); + BOOST_STATIC_CONSTANT(bool, value = + sizeof(aux::is_placeholder_helper(get())) == sizeof(aux::yes_tag) + ); + + typedef bool_<value> type; +}; + +#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION + +}} + +#endif // BOOST_MPL_IS_PLACEHOLDER_HPP_INCLUDED |