title: What is the Linux equivalent to MAXDWORD?
body: <p>In Microsoft Visual C++, there is a constant called MAXDWORD defined in winnt.h as follows:</p>
  
  <blockquote>
    <p>#define MAXDWORD 0xffffffff</p>
  </blockquote>
  
  <p>It's useful as a high initial value for a 'double' when one is searching for the lowest value in a collection.
  Google though I might, I can't find the equivalent in standard headers on Linux, but I'm willing to bet there must be one.</p>
  
  <p>I'm using:</p>
  
  <ul>
  <li>uBuntu 10.04 64bit</li>
  <li>g++ 4.4.3</li>
  </ul>