rnel-persistent entity fr...">Shared_name</a> with boost.program_options (or <code>flow::cfg</code> which is built on top of it)? Look into it. It may be necessary to make <code>operator&lt;&lt;</code> equal to that of <code>ostream &lt;&lt; string</code> after all; though the added niceties of the current <code>&lt;&lt;</code> semantics may still at least be available via some explicit accessor. </dd>
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