Added boost header

test/external/boost/serialization/level_enum.hpp

@@ -0,0 +1,55 @@
+#ifndef BOOST_SERIALIZATION_LEVEL_ENUM_HPP
+#define BOOST_SERIALIZATION_LEVEL_ENUM_HPP
+
+// MS compatible compilers support #pragma once
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
+// level_enum.hpp:
+
+// (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.
+
+namespace boost {
+namespace serialization {
+
+// for each class used in the program, specify which level
+// of serialization should be implemented
+
+// names for each level
+enum level_type
+{
+    // Don't serialize this type. An attempt to do so should
+    // invoke a compile time assertion.
+    not_serializable = 0,
+    // write/read this type directly to the archive. In this case
+    // serialization code won't be called.  This is the default
+    // case for fundamental types.  It presumes a member function or
+    // template in the archive class that can handle this type.
+    // there is no runtime overhead associated reading/writing
+    // instances of this level
+    primitive_type = 1,
+    // Serialize the objects of this type using the objects "serialize"
+    // function or template. This permits values to be written/read
+    // to/from archives but includes no class or version information. 
+    object_serializable = 2,
+    ///////////////////////////////////////////////////////////////////
+    // once an object is serialized at one of the above levels, the
+    // corresponding archives cannot be read if the implementation level
+    // for the archive object is changed.  
+    ///////////////////////////////////////////////////////////////////
+    // Add class information to the archive.  Class information includes
+    // implementation level, class version and class name if available
+    object_class_info = 3
+};
+
+} // namespace serialization
+} // namespace boost
+
+#endif // BOOST_SERIALIZATION_LEVEL_ENUM_HPP