diff options
Diffstat (limited to 'contrib/src/boost/mpl/is_placeholder.hpp')
-rw-r--r-- | contrib/src/boost/mpl/is_placeholder.hpp | 134 |
1 files changed, 67 insertions, 67 deletions
diff --git a/contrib/src/boost/mpl/is_placeholder.hpp b/contrib/src/boost/mpl/is_placeholder.hpp index 3e55f96..9f79ef1 100644 --- a/contrib/src/boost/mpl/is_placeholder.hpp +++ b/contrib/src/boost/mpl/is_placeholder.hpp @@ -1,67 +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.
-
-// $Id$
-// $Date$
-// $Revision$
-
-#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
+ +#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. + +// $Id$ +// $Date$ +// $Revision$ + +#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 |