default serialization defined in terms of primitive types
so it isn't a requirement to define <code style="white-space: normal">save_override</code> 
for these types.
<p>
These are defined in
<a href="../../../boost/archive/basic_archive.hpp" target="basic_archive_hpp"><code style="white-space: normal">basic_archive.hpp</code></a>.
All of these types have been assigned an 
<a target="detail" href="traits.html#level">implementation level</a> of
<code style="white-space: normal">primitive</code> and are conve