--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ossrv_pub/boost_apis/boost/parameter/aux_/cast.hpp Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,129 @@
+// 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)
+
+#ifndef BOOST_PARAMETER_CAST_060902_HPP
+# define BOOST_PARAMETER_CAST_060902_HPP
+
+# if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
+ && !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 defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \
+ || 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>
+struct cast;
+
+template <>
+struct cast<void*>
+{
+ 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>
+struct cast<voidstar(T)>
+ : cast<void*>
+{
+};
+
+#else
+
+template <class T>
+struct cast<void*(T)>
+ : cast<void*>
+{
+};
+
+#endif
+
+template <class T>
+struct cast<void(T)>
+{
+ typedef typename boost::add_reference<
+ typename boost::remove_const<T>::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 T execute(T 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) \
+ boost::parameter::aux::cast<void predicate>::remove_const( \
+ boost::parameter::aux::cast<void predicate>::execute(value) \
+ )
+
+# endif
+
+}}} // namespace boost::parameter::aux
+
+#endif // BOOST_PARAMETER_CAST_060902_HPP
+