title: How do I get DOUBLE_MAX?
body: <p>AFAIK, C supports just a few data types:</p>
  <pre><code>int, float, double, char, void enum.
  </code></pre>
  <p>I need to store a number that could reach into the high 10 digits.  Since I'm getting a low 10 digit # from</p>
  <blockquote>
  <p>INT_MAX</p>
  </blockquote>
  <p>, I suppose I need a double.</p>
  <p><code>&lt;limits.h&gt;</code> doesn't have a <code>DOUBLE_MAX</code>.  I found a <code>DBL_MAX</code> on the internet that said this is LEGACY and also appears to be C++.  Is double what I need?  Why is there no <code>DOUBLE_MAX</code>?</p>