fixup helpers

[SVN r29644]

src/basic_archive_impl.cpp

@@ -0,0 +1,48 @@
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// basic_archive.cpp:
+
+// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . 
+// 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)
+
+//  See http://www.boost.org for updates, documentation, and revision history.
+#include <utility>
+#include <boost/shared_ptr.hpp>
+
+#define BOOST_ARCHIVE_SOURCE
+#include <boost/archive/detail/auto_link_archive.hpp>
+#include <boost/archive/detail/basic_archive_impl.hpp>
+
+namespace boost {
+namespace archive {
+namespace detail {
+
+void
+BOOST_DECL_ARCHIVE
+basic_archive_impl::lookup_helper(
+    const boost::serialization::extended_type_info * const eti,
+    shared_ptr<void> & sph
+){
+    helper_iterator it;
+    const helper_type ht(sph, eti);
+    it = m_helpers.find(ht);
+    if(it == m_helpers.end())
+        sph.reset();
+    else
+        sph = it->m_helper;
+}
+
+void
+BOOST_DECL_ARCHIVE
+basic_archive_impl::insert_helper(
+    const boost::serialization::extended_type_info * const eti,
+    shared_ptr<void> & sph
+){
+    const helper_type ht(sph, eti);
+    std::pair<helper_iterator, bool> result = m_helpers.insert(ht);
+}
+
+} // namespace detail
+} // namespace serialization
+} // namespace boost