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diff --git a/boost/archive/impl/basic_text_iarchive.ipp b/boost/archive/impl/basic_text_iarchive.ipp
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+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// basic_text_iarchive.ipp:
+
+// (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 <string>
+#include <algorithm>
+#include <cstring>
+
+#include <boost/config.hpp> // for BOOST_DEDUCED_TYPENAME
+#if defined(BOOST_NO_STDC_NAMESPACE)
+namespace std{ 
+    using ::memcpy; 
+}
+#endif
+
+#include <boost/detail/workaround.hpp>
+#include <boost/serialization/string.hpp>
+#include <boost/archive/basic_text_iarchive.hpp>
+
+namespace boost {
+namespace archive {
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// implementation of text_text_archive
+
+template<class Archive>
+BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
+basic_text_iarchive<Archive>::load_override(class_name_type & t, int){
+    std::string cn;
+    cn.reserve(BOOST_SERIALIZATION_MAX_KEY_SIZE);
+    load_override(cn, 0);
+    if(cn.size() > (BOOST_SERIALIZATION_MAX_KEY_SIZE - 1))
+        boost::serialization::throw_exception(
+            archive_exception(archive_exception::invalid_class_name)
+        );
+    std::memcpy(t, cn.data(), cn.size());
+    // borland tweak
+    t.t[cn.size()] = '\0';
+}
+
+template<class Archive>
+BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
+basic_text_iarchive<Archive>::init(void){
+    // read signature in an archive version independent manner
+    std::string file_signature;
+    * this->This() >> file_signature;
+    if(file_signature != BOOST_ARCHIVE_SIGNATURE())
+        boost::serialization::throw_exception(
+            archive_exception(archive_exception::invalid_signature)
+        );
+
+    // make sure the version of the reading archive library can
+    // support the format of the archive being read
+    library_version_type input_library_version;
+    * this->This() >> input_library_version;
+
+    #if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3205))
+    this->set_library_version(input_library_version);
+    #else
+    #if ! BOOST_WORKAROUND(BOOST_MSVC, <= 1200)
+    detail::
+    #endif
+    basic_iarchive::set_library_version(input_library_version);
+    #endif
+
+    // extra little .t is to get around borland quirk
+    if(BOOST_ARCHIVE_VERSION() < input_library_version)
+        boost::serialization::throw_exception(
+            archive_exception(archive_exception::unsupported_version)
+        );
+}
+
+} // namespace archive
+} // namespace boost