tifier">FallbackPolicyT</span>                                           <a name="boost.log.expressions.format_named_scope_actor.fallback_policy"></a><span class="identifier">fallback_policy</span><span class="special">;</span>          <span class="comment">// Fallback policy. </span>
  <span class="keyword">typedef</span> <a class="link" href="format_named_scop_idm28055.html" title="Class template format_named_scope_terminal">format_named_scope_terminal</a><span class="special">&lt;</span> <span class="id