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<p>Retrieve all of the keys stored in a hashtab. </p>
<p>If the kc and kv parameters are properly initialized to zero, then <a class="el" href="group__hashtab.html#gaef45959b197448cfec26056d4d5656f0" title="Retrieve all of the keys stored in a hashtab.">hashtab_getkeys()</a> will allocate memory for the keys it returns. You are then responsible for freeing this memory usi