routput"><span class="keyword">float</span><span class="special">-&gt;</span><span class="keyword">double</span></code>
        is not, which yields the same supertype,subtype for both directions.
      </p>
<p>
        Now consider:
      </p>
<div class="blockquote"><blockquote class="blockquote"><p>
          <code class="computeroutput"><span class="identifier">R</span><span class="special">(</span><span class="keyword">int</span><span class="special">)=[</span><span class="identifier">INT_MIN</span><sp