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2.1 KiB
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40 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>28.1.3.3. Inheritance of Class Options</TITLE>
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<meta name="description" value=" Inheritance of Class Options">
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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=tex2html5048 HREF="node272.html"><IMG ALIGN=BOTTOM ALT="next" SRC="icons/next_motif.gif"></A> <A NAME=tex2html5046 HREF="node268.html"><IMG ALIGN=BOTTOM ALT="up" SRC="icons/up_motif.gif"></A> <A NAME=tex2html5040 HREF="node270.html"><IMG ALIGN=BOTTOM ALT="previous" SRC="icons/previous_motif.gif"></A> <A NAME=tex2html5050 HREF="node1.html"><IMG ALIGN=BOTTOM ALT="contents" SRC="icons/contents_motif.gif"></A> <A NAME=tex2html5051 HREF="index.html"><IMG ALIGN=BOTTOM ALT="index" SRC="icons/index_motif.gif"></A> <BR>
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<B> Next:</B> <A NAME=tex2html5049 HREF="node272.html"> Examples</A>
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<B>Up:</B> <A NAME=tex2html5047 HREF="node268.html"> Inheritance</A>
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<B> Previous:</B> <A NAME=tex2html5041 HREF="node270.html"> Inheritance of Slots </A>
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<HR> <P>
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<H3><A NAME=SECTION003213300000000000000>28.1.3.3. Inheritance of Class Options</A></H3>
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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 <tt>:default-initargs</tt> class option is inherited. The set of
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defaulted initialization arguments for a class is the union of the
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sets of initialization arguments specified in the
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<tt>:default-initargs</tt> class options of the class and its superclasses.
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When more than one default initial value form is supplied for a given
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initialization argument, the default initial value form that is used
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is the one supplied by the class that is most specific according to
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the class precedence list.
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<P>
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If a given <tt>:default-initargs</tt> class option specifies an
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initialization argument of the same name more than once, an
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error is signaled.
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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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