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42 lines
2.1 KiB
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<!DOCTYPE HTML PUBLIC "-//W3O//DTD W3 HTML 2.0//EN">
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<!Converted with LaTeX2HTML 0.6.5 (Tue Nov 15 1994) by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds >
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<TITLE>29.4.6. Creating Conditions</TITLE>
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<meta name="description" value=" Creating Conditions">
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<P>
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<b>Common Lisp the Language, 2nd Edition</b>
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<BR> <HR><A NAME=tex2html5944 HREF="node341.html"><IMG ALIGN=BOTTOM ALT="next" SRC="icons/next_motif.gif"></A> <A NAME=tex2html5942 HREF="node334.html"><IMG ALIGN=BOTTOM ALT="up" SRC="icons/up_motif.gif"></A> <A NAME=tex2html5936 HREF="node339.html"><IMG ALIGN=BOTTOM ALT="previous" SRC="icons/previous_motif.gif"></A> <A NAME=tex2html5946 HREF="node1.html"><IMG ALIGN=BOTTOM ALT="contents" SRC="icons/contents_motif.gif"></A> <A NAME=tex2html5947 HREF="index.html"><IMG ALIGN=BOTTOM ALT="index" SRC="icons/index_motif.gif"></A> <BR>
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<B> Next:</B> <A NAME=tex2html5945 HREF="node341.html"> Establishing Restarts</A>
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<B>Up:</B> <A NAME=tex2html5943 HREF="node334.html"> Program Interface to </A>
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<B> Previous:</B> <A NAME=tex2html5937 HREF="node339.html"> Defining Conditions</A>
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<HR> <P>
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<H2><A NAME=SECTION003346000000000000000>29.4.6. Creating Conditions</A></H2>
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<P>
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<img align=bottom alt="change_begin" src="gif/change_begin.gif"><br>
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The function <tt>make-condition</tt> is the basic means for
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creating condition objects.
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<P>
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<BR><b>[Function]</b><BR>
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<tt>make-condition <i>type</i> &rest <i>slot-initializations</i> </tt><P> Constructs a condition object of the given <i>type</i> using <i>slot-initializations</i>
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as a specification of the initial value of the slots. The newly created
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condition is returned.
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<P>
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The <i>slot-initializations</i> are alternating keyword/value pairs.
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For example:
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<P><pre>
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(make-condition 'peg/hole-mismatch
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:peg-shape 'square :hole-shape 'round)
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</pre><P>
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<br><img align=bottom alt="change_end" src="gif/change_end.gif">
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<P>
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<HR>
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<P><ADDRESS>
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AI.Repository@cs.cmu.edu
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</ADDRESS>
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