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 9f79ef1..3e55f96 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
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