<p>Compiling the current master on F27 gives the warning below. It turns out that the <code>set_used()</code> macro and the dirty bit handling is no longer used and can be removed.</p>
<pre>In file included from /home/jburgess/osm2pgsql/options.hpp:4:0,
                 from /home/jburgess/osm2pgsql/expire-tiles.cpp:18:
/home/jburgess/osm2pgsql/node-ram-cache.hpp: In member function ‘void ramNodeBlock::set_used(int)’:
/home/jburgess/osm2pgsql/node-ram-cache.hpp:43:45: warning: ‘<<’ in boolean context, did you mean ‘<’ ? [-Wint-in-bool-context]
     void set_used(int used) { _used = (used << 1) || (_used & 1); }
                                       ~~~~~~^~~~~
</pre>
<p>All the tests pass after making this change.</p>

<hr>

<h4>You can view, comment on, or merge this pull request online at:</h4>
<p>  <a href='https://github.com/openstreetmap/osm2pgsql/pull/809'>https://github.com/openstreetmap/osm2pgsql/pull/809</a></p>

<h4>Commit Summary</h4>
<ul>
  <li>Remove unused ramNodeBlock functions</li>
  <li>Remove unused usage of dirty-bit in ram node cache</li>
</ul>

<h4>File Changes</h4>
<ul>
  <li>
    <strong>M</strong>
    <a href="https://github.com/openstreetmap/osm2pgsql/pull/809/files#diff-0">node-ram-cache.hpp</a>
    (11)
  </li>
</ul>

<h4>Patch Links:</h4>
<ul>
  <li><a href='https://github.com/openstreetmap/osm2pgsql/pull/809.patch'>https://github.com/openstreetmap/osm2pgsql/pull/809.patch</a></li>
  <li><a href='https://github.com/openstreetmap/osm2pgsql/pull/809.diff'>https://github.com/openstreetmap/osm2pgsql/pull/809.diff</a></li>
</ul>

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