--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ossrv_pub/boost_apis/boost/iostreams/close.hpp	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,145 @@
+// (C) Copyright Jonathan Turkanis 2003.
+// 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/iostreams for documentation.
+
+#ifndef BOOST_IOSTREAMS_CLOSE_HPP_INCLUDED
+#define BOOST_IOSTREAMS_CLOSE_HPP_INCLUDED
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+#include <boost/config.hpp>  // DEDUCED_TYPENAME, MSVC.
+#include <boost/detail/workaround.hpp>
+#include <boost/iostreams/categories.hpp>
+#include <boost/iostreams/flush.hpp>
+#include <boost/iostreams/detail/adapter/non_blocking_adapter.hpp>
+#include <boost/iostreams/detail/wrap_unwrap.hpp>
+#include <boost/iostreams/operations_fwd.hpp>
+#include <boost/iostreams/traits.hpp>
+#include <boost/mpl/identity.hpp>
+#include <boost/mpl/if.hpp>
+#include <boost/type_traits/is_convertible.hpp>
+
+// Must come last.
+#include <boost/iostreams/detail/config/disable_warnings.hpp>
+
+#if BOOST_WORKAROUND(BOOST_MSVC, < 1300) //-----------------------------------//
+# include <boost/iostreams/detail/vc6/close.hpp>
+#else // #if BOOST_WORKAROUND(BOOST_MSVC, < 1300) //--------------------------//
+
+namespace boost { namespace iostreams {
+
+namespace detail {
+
+template<typename T>
+struct close_impl;
+
+} // End namespace detail.
+
+template<typename T>
+void close(T& t, BOOST_IOS::openmode which)
+{ detail::close_impl<T>::close(detail::unwrap(t), which); }
+
+template<typename T, typename Sink>
+void close(T& t, Sink& snk, BOOST_IOS::openmode which)
+{ detail::close_impl<T>::close(detail::unwrap(t), snk, which); }
+
+namespace detail {
+
+//------------------Definition of close_impl----------------------------------//
+
+template<typename T>
+struct close_tag {
+    typedef typename category_of<T>::type category;
+    typedef typename
+            mpl::eval_if<
+                is_convertible<category, closable_tag>,
+                mpl::if_<
+                    mpl::or_<
+                        is_convertible<category, two_sequence>,
+                        is_convertible<category, dual_use>
+                    >,
+                    two_sequence,
+                    closable_tag
+                >,
+                mpl::identity<any_tag>
+            >::type type;
+};
+
+template<typename T>
+struct close_impl
+    : mpl::if_<
+          is_custom<T>,
+          operations<T>,
+          close_impl<BOOST_DEDUCED_TYPENAME close_tag<T>::type>
+      >::type
+    { };
+
+template<>
+struct close_impl<any_tag> {
+    template<typename T>
+    static void close(T& t, BOOST_IOS::openmode which)
+    {
+        if ((which & BOOST_IOS::out) != 0)
+            iostreams::flush(t);
+    }
+
+    template<typename T, typename Sink>
+    static void close(T& t, Sink& snk, BOOST_IOS::openmode which)
+    {
+        if ((which & BOOST_IOS::out) != 0) {
+            non_blocking_adapter<Sink> nb(snk);
+            iostreams::flush(t, nb);
+        }
+    }
+};
+
+#include <boost/iostreams/detail/config/disable_warnings.hpp> // Borland.
+template<>
+struct close_impl<closable_tag> {
+    template<typename T>
+    static void close(T& t, BOOST_IOS::openmode which)
+    {
+        typedef typename category_of<T>::type category;
+        const bool in =  is_convertible<category, input>::value &&
+                        !is_convertible<category, output>::value;
+        if (in == ((which & BOOST_IOS::in) != 0))
+            t.close();
+    }
+    template<typename T, typename Sink>
+    static void close(T& t, Sink& snk, BOOST_IOS::openmode which)
+    {
+        typedef typename category_of<T>::type category;
+        const bool in =  is_convertible<category, input>::value &&
+                        !is_convertible<category, output>::value;
+        if (in == ((which & BOOST_IOS::in) != 0)) {
+            non_blocking_adapter<Sink> nb(snk);
+            t.close(nb);
+        }
+    }
+};
+
+template<>
+struct close_impl<two_sequence> {
+    template<typename T>
+    static void close(T& t, BOOST_IOS::openmode which) { t.close(which); }
+    template<typename T, typename Sink>
+    static void close(T& t, Sink& snk, BOOST_IOS::openmode which)
+    {
+        non_blocking_adapter<Sink> nb(snk);
+        t.close(nb, which);
+    }
+};
+
+} // End namespace detail.
+
+} } // End namespaces iostreams, boost.
+
+#endif // #if BOOST_WORKAROUND(BOOST_MSVC, < 1300) //-------------------------//
+
+#include <boost/iostreams/detail/config/enable_warnings.hpp>
+
+#endif // #ifndef BOOST_IOSTREAMS_CLOSE_HPP_INCLUDED