<p>In <a href="https://github.com/geany/geany/pull/1187#discussion_r75842909">src/tagmanager/tm_query.c</a>:</p>
<pre style='color:#555'>> +                    match = tag->type & q->type;
> +
> +          /* Remove tag from the results. tags are unowned so removing is easy */
> +          if (!match)
> +                  g_queue_unlink(&res, node);
> +  }
> +
> +  /* Convert GQueue to GPtrArray for sort, dedup and return */
> +  i = 0;
> +  ret = g_ptr_array_sized_new(g_queue_get_length(&res));
> +  foreach_list(node, res.head)
> +  {
> +          tag = (TMTag *) node->data;
> +          g_ptr_array_insert(ret, i++, tag);
> +  }
> +  g_list_free(res.head);
</pre>
<p>There is no need to add in the middle.  As mentioned above, sorting before the end looks like a bad idea here, so you end up trading prunning the array with building a list.  And prunning the array is basically implemented as a set of pointer moves, not consecutive <code>memmove()</code>s.</p>

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