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[ceph.git] / ceph / src / boost / boost / parameter / aux_ / cast.hpp

diff --git a/ceph/src/boost/boost/parameter/aux_/cast.hpp b/ceph/src/boost/boost/parameter/aux_/cast.hpp
index bd3de2bef590b3387835129f3ed66b528a7a447f..0125e2209c6f50dd04dc81d39570081af0785213 100644 (file)
--- a/ceph/src/boost/boost/parameter/aux_/cast.hpp
+++ b/ceph/src/boost/boost/parameter/aux_/cast.hpp
@@ -1,141 +1,12 @@
-// Copyright Daniel Wallin 2006. Use, modification and distribution is
-// subject to 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)
+// Copyright Daniel Wallin 2006.
+// 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_PARAMETER_CAST_060902_HPP
-# define BOOST_PARAMETER_CAST_060902_HPP
+#define BOOST_PARAMETER_CAST_060902_HPP
 
-# include <boost/detail/workaround.hpp>
+#include <boost/parameter/aux_/preprocessor/impl/function_cast.hpp>
 
-# if !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
-#  include <boost/type_traits/add_reference.hpp>
-#  include <boost/type_traits/remove_const.hpp>
-# endif
-
-namespace boost { namespace parameter { namespace aux {
-
-struct use_default_tag {};
-
-# if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))
-
-#  define BOOST_PARAMETER_FUNCTION_CAST(value, predicate) value
-
-# else
-
-// Handles possible implicit casts. Used by preprocessor.hpp to
-// normalize user input.
-//
-// cast<void*>::execute() is identity
-// cast<void*(X)>::execute() is identity
-// cast<void(X)>::execute() casts to X
-//
-// preprocessor.hpp uses this like this:
-//
-//   #define X(value, predicate)
-//      cast<void predicate>::execute(value)
-//
-//   X(something, *)
-//   X(something, *(predicate))
-//   X(something, (int))
-
-template <class T, class Args>
-struct cast;
-
-template <class Args>
-struct cast<void*, Args>
-{
-    static use_default_tag execute(use_default_tag)
-    {
-        return use_default_tag();
-    }
-
-    static use_default_tag remove_const(use_default_tag)
-    {
-        return use_default_tag();
-    }
-
-    template <class U>
-    static U& execute(U& value)
-    {
-        return value;
-    }
-
-    template <class U>
-    static U& remove_const(U& x)
-    {
-        return x;
-    }
-};
-
-#if BOOST_WORKAROUND(__SUNPRO_CC, BOOST_TESTED_AT(0x580))
-
-typedef void* voidstar;
-
-template <class T, class Args>
-struct cast<voidstar(T), Args>
-  : cast<void*, Args>
-{
-};
-
-#else
-
-template <class T, class Args>
-struct cast<void*(T), Args>
-  : cast<void*, Args>
-{
-};
-
-#endif
-
-// This is a hack used in cast<> to turn the user supplied type,
-// which may or may not be a placeholder expression into one, so
-// that it will be properly evaluated by mpl::apply.
-template <class T, class Dummy = mpl::_1>
-struct as_placeholder_expr
-{
-    typedef T type;
-};
-
-template <class T, class Args>
-struct cast<void(T), Args>
-{
-    typedef typename mpl::apply2<
-        as_placeholder_expr<T>, Args, Args>::type type0;
-
-    typedef typename boost::add_reference<
-        typename boost::remove_const<type0>::type 
-    >::type reference;
-
-    static use_default_tag execute(use_default_tag)
-    {
-        return use_default_tag();
-    }
-
-    static use_default_tag remove_const(use_default_tag)
-    {
-        return use_default_tag();
-    }
-
-    static type0 execute(type0 value)
-    {
-        return value;
-    }
-
-    template <class U>
-    static reference remove_const(U const& x)
-    {
-        return const_cast<reference>(x);
-    }
-};
-
-#  define BOOST_PARAMETER_FUNCTION_CAST(value, predicate, args) \
-    boost::parameter::aux::cast<void predicate, args>::remove_const( \
-        boost::parameter::aux::cast<void predicate, args>::execute(value) \
-    )
-
-# endif
-
-}}} // namespace boost::parameter::aux
-
-#endif // BOOST_PARAMETER_CAST_060902_HPP
+#endif  // include guard