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<html><head><title>XLISP logxor</title>
<link rel="stylesheet" type="text/css" href="reference.css">
</head>
<body>
<a href="../start.htm">Nyquist / XLISP 2.0</a> -
<a href="../manual/contents.htm">Contents</a> |
<a href="../tutorials/tutorials.htm">Tutorials</a> |
<a href="../examples/examples.htm">Examples</a> |
<a href="reference-index.htm">Reference</a>
<hr>
<h1>logxor</h1>
<hr>
<p><table cellpadding="0" cellspacing="0" style="margin-left:10px"><tbody>
<tr valign="top">
<td><nobr>Type:</nobr></td>
<td><nobr> - </nobr></td>
<td width="100%"><nobr>function (subr)</nobr></td>
</tr>
<tr valign="top">
<td><nobr>Source:</nobr></td>
<td><nobr> - </nobr></td>
<td width="100%"><nobr>xlmath.c</nobr></td>
</tr>
</tbody></table></p>
<h2>Syntax</h2>
<dl>
<dt>(logxor <i>expr1</i> ... )</dt>
<dd>exprN - an integer expression<br>
returns - the result of the eXclusive OR operation</dd>
</dl>
<h2>Description</h2>
<p>The 'logxor' function returns the logical bitwise 'exclusive-or' of the
list of expressions. If there is only one argument, it is returned
unaltered. If there are two or more arguments, the 'logxor' function
performs the 'exclusive-or' successively applying the bitwise operation.</p>
<h2>Examples</h2>
<pre class="example">
(logxor 0 0) <font color="#008844">; returns 0</font>
(logxor 0 1) <font color="#008844">; returns 1</font>
(logxor 1 0) <font color="#008844">; returns 1</font>
(logxor 1 1) <font color="#008844">; returns 0</font>
(logxor #b0011 #b0101) <font color="#008844">; returns 6</font>
(logxor 255 #xF0) <font color="#008844">; returns 15</font>
(logxor 255 #x0F) <font color="#008844">; returns 240</font>
(logxor 255 (logxor 255 99)) <font color="#008844">; returns 99</font>
</pre>
<p><b>Note:</b> XLISP does not check when read-macro expansions like '#x0FF'
are out of bounds. It gives no error message and will just truncate the
number to the low-order bits that it can deal with [usually 32 bits or 8 hex
digits].</p>
<p>See the
<a href="../manual/xlisp-man-024.htm#logxor">logxor</a>
function in the <nobr>XLISP 2.0</nobr> manual.</p>
<p><nobr> <a href="#top">Back to Top</nobr></a></p>
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