--- code_converter.hpp.orig	Sat Mar 22 22:45:55 2008
+++ code_converter.hpp	Wed Jul  9 14:02:46 2008
@@ -198,6 +198,19 @@
         }
     }
 
+    bool flush()
+    {
+        if (!is_open())
+            throw BOOST_IOSTREAMS_FAILURE("not open");
+        if ((flags_ & f_input_closed) != 0)
+            throw BOOST_IOSTREAMS_FAILURE("already closed");
+        detail::execute_all(
+            detail::flush_buffer(buf_.first(), dev(), can_read::value),
+            detail::flush_buffer(buf_.second(), dev(), can_write::value)
+            );
+        return iostreams::flush(dev());
+    }
+
     bool is_open() const { return (flags_ & f_open) != 0;}
 
     policy_type& dev() { return **dev_; }
@@ -252,7 +265,7 @@
 public:
     typedef intern_type                                             char_type;    
     struct category 
-        : impl_type::mode, device_tag, closable_tag, localizable_tag
+        : impl_type::mode, device_tag, closable_tag, flushable_tag, localizable_tag
         { };
     BOOST_STATIC_ASSERT((
         is_same<
@@ -279,6 +292,8 @@
     bool is_open() const { return this->pimpl_->is_open(); }
     void close(BOOST_IOS::openmode which = BOOST_IOS::in | BOOST_IOS::out )
     { impl().close(which); }
+    bool flush()
+    { return impl().flush(); }
 
         // Device interface.