File: STRING_lt_.html

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<html>
<head><title>STRING_lt_.html  --  ACL2 Version 3.1</title></head>
<body text=#000000 bgcolor="#FFFFFF">
<h2>STRING&lt;</h2>less-than test for strings
<pre>Major Section:  <a href="PROGRAMMING.html">PROGRAMMING</a>
</pre><p>

<code>(String&lt; str1 str2)</code> is non-<code>nil</code> if and only if the string
<code>str1</code> precedes the string <code>str2</code> lexicographically, where
character inequalities are tested using <code><a href="CHAR_lt_.html">char&lt;</a></code>.  When non-<code>nil</code>,
<code>(string&lt; str1 str2)</code> is the first position (zero-based) at which
the strings differ.  Here are some examples.

<pre>
ACL2 !&gt;(string&lt; "abcd" "abu")
2
ACL2 !&gt;(string&lt; "abcd" "Abu")
NIL
ACL2 !&gt;(string&lt; "abc" "abcde")
3
ACL2 !&gt;(string&lt; "abcde" "abc")
NIL
</pre>


<p>
The <a href="GUARD.html">guard</a> for <code>string&lt;</code> specifies that its arguments are strings.<p>

<code>String&lt;</code> is a Common Lisp function.  See any Common Lisp
documentation for more information.
<br><br><br><a href="acl2-doc.html"><img src="llogo.gif"></a> <a href="acl2-doc-index.html"><img src="index.gif"></a>
</body>
</html>