整理

include/boost/mpl/aux_/msvc_eti_base.hpp

@@ -0,0 +1,77 @@
+
+#ifndef BOOST_MPL_AUX_MSVC_ETI_BASE_HPP_INCLUDED
+#define BOOST_MPL_AUX_MSVC_ETI_BASE_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/aux_/is_msvc_eti_arg.hpp>
+#include <boost/mpl/aux_/config/eti.hpp>
+#include <boost/mpl/aux_/config/gcc.hpp>
+#include <boost/mpl/aux_/config/workaround.hpp>
+
+namespace boost { namespace mpl { namespace aux {
+
+#if defined(BOOST_MPL_CFG_MSVC_70_ETI_BUG)
+
+template< bool > struct msvc_eti_base_impl
+{
+    template< typename T > struct result_
+        : T
+    {
+        typedef T type;
+    };
+};
+
+template<> struct msvc_eti_base_impl<true>
+{
+    template< typename T > struct result_
+    {
+        typedef result_ type;
+        typedef result_ first;
+        typedef result_ second;
+        typedef result_ tag;
+        enum { value = 0 };
+    };
+};
+
+template< typename T > struct msvc_eti_base
+    : msvc_eti_base_impl< is_msvc_eti_arg<T>::value >
+        ::template result_<T>
+{
+};
+
+#else // !BOOST_MPL_CFG_MSVC_70_ETI_BUG
+
+template< typename T > struct msvc_eti_base
+    : T
+{
+#if BOOST_WORKAROUND(BOOST_MPL_CFG_GCC, BOOST_TESTED_AT(0x0304))
+    msvc_eti_base();
+#endif
+    typedef T type;
+};
+
+#endif 
+
+template<> struct msvc_eti_base<int>
+{
+    typedef msvc_eti_base type;
+    typedef msvc_eti_base first;
+    typedef msvc_eti_base second;
+    typedef msvc_eti_base tag;
+    enum { value = 0 };
+};
+
+}}}
+
+#endif // BOOST_MPL_AUX_MSVC_ETI_BASE_HPP_INCLUDED