title: Does perl have an equivalent of +/- infinity for string comparisons?
body: <p>In perl, for numerical comparison, we have <code>+/- inf</code> as numbers that are greater/less than every other number. Are there also strings that are <code>gt</code>/<code>lt</code> any other string?</p>
  
  <p>The reason I ask is that I'd like to tack one or the other on the end of a list of strings to ensure that a loop will terminate before the end of the list.</p>