remove unused boost files (~520)

[lyx.git] / boost / boost / type_traits / is_union.hpp

diff --git a/boost/boost/type_traits/is_union.hpp b/boost/boost/type_traits/is_union.hpp
index 5a2c3f97111ec1cb6dffdf4fde58b261b309f4b8..610f162ba41cc619f8f3f389836498368b57f76c 100644 (file)
--- a/boost/boost/type_traits/is_union.hpp
+++ b/boost/boost/type_traits/is_union.hpp
@@ -1,37 +1,57 @@
 
-// (C) Copyright Dave Abrahams, Steve Cleary, Beman Dawes, Howard
-// Hinnant & John Maddock 2000.  Permission to copy, use, modify,
-// sell and distribute this software is granted provided this
-// copyright notice appears in all copies. This software is provided
-// "as is" without express or implied warranty, and with no claim as
-// to its suitability for any purpose.
+//  (C) Copyright Dave Abrahams, Steve Cleary, Beman Dawes, Howard
+//  Hinnant & John Maddock 2000.  
+//  Use, modification and distribution are 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).
 //
-// See http://www.boost.org for most recent version including documentation.
+//  See http://www.boost.org/libs/type_traits for most recent version including documentation.
+
 
 #ifndef BOOST_TT_IS_UNION_HPP_INCLUDED
 #define BOOST_TT_IS_UNION_HPP_INCLUDED
 
-#include "boost/type_traits/remove_cv.hpp"
-#include "boost/type_traits/config.hpp"
-#include "boost/type_traits/intrinsics.hpp"
+#include <boost/type_traits/remove_cv.hpp>
+#include <boost/type_traits/config.hpp>
+#include <boost/type_traits/intrinsics.hpp>
 
 // should be the last #include
-#include "boost/type_traits/detail/bool_trait_def.hpp"
+#include <boost/type_traits/detail/bool_trait_def.hpp>
 
 namespace boost {
 
 namespace detail {
+#ifndef __GNUC__
 template <typename T> struct is_union_impl
 {
    typedef typename remove_cv<T>::type cvt;
+#ifdef BOOST_IS_UNION
    BOOST_STATIC_CONSTANT(bool, value = BOOST_IS_UNION(cvt));
+#else
+   BOOST_STATIC_CONSTANT(bool, value = false);
+#endif
+};
+#else
+//
+// using remove_cv here generates a whole load of needless
+// warnings with gcc, since it doesn't do any good with gcc
+// in any case (at least at present), just remove it:
+//
+template <typename T> struct is_union_impl
+{
+#ifdef BOOST_IS_UNION
+   BOOST_STATIC_CONSTANT(bool, value = BOOST_IS_UNION(T));
+#else
+   BOOST_STATIC_CONSTANT(bool, value = false);
+#endif
 };
+#endif
 } // namespace detail
 
 BOOST_TT_AUX_BOOL_TRAIT_DEF1(is_union,T,::boost::detail::is_union_impl<T>::value)
 
 } // namespace boost
 
-#include "boost/type_traits/detail/bool_trait_undef.hpp"
+#include <boost/type_traits/detail/bool_trait_undef.hpp>
 
 #endif // BOOST_TT_IS_UNION_HPP_INCLUDED