<span class="identifier">error_code</span> <span class="identifier">ec</span><span class="special">;</span>
<span class="identifier">tcp</span><span class="special">::</span><span class="identifier">socket</span> <span class="identifier">sock</span><span class="special">{</span><span class="identifier">ioc</span><span class="special">};</span>
</pre>
+<p>
+ [8_conf_macros.qbk]
+ </p>
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