1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
<html>
<head><title>BREAK-ON-ERROR.html -- ACL2 Version 3.1</title></head>
<body text=#000000 bgcolor="#FFFFFF">
<h2>BREAK-ON-ERROR</h2>break when encountering a hard or soft error caused by ACL2.
<pre>Major Section: <a href="TRACE.html">TRACE</a>
</pre><p>
<pre>
General forms:
(break-on-error t) ; installs a trace causing a continuable error (break)
; whenever a hard or soft error is invoked by ACL2.
(break-on-error) ; same as above
(break-on-error nil) ; uninstall the above trace
</pre>
<code>(Break-on-error)</code> is actually a macro that expands as follows.
<pre>
(trace$ (illegal :entry (break))
(error1 :entry (break)))
</pre>
This trace should cause entry to the Lisp debugger (at least in most Lisps)
whenever ACL2 calls its error routines.<p>
Also see <a href="TRACE$.html">trace$</a>.
<p>
<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>
|
