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59 lines
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<TITLE>CLHS: Standard Generic Function MAKE-INSTANCES-OBSOLETE</TITLE>
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<A NAME="make-instances-obsolete"><I>Standard Generic Function</I> <B>MAKE-INSTANCES-OBSOLETE</B></A> <P>
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<P><B>Syntax:</B><P>
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<P>
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<B>make-instances-obsolete</B> <I>class</I> => <I>class</I><P>
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<P>
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<P><B>Method Signatures:</B><P>
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<B>make-instances-obsolete</B> <I>(<I>class</I><B> <A REL=DEFINITION HREF="t_std_cl.htm#standard-class">standard-class</A></B>)</I><P>
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<P>
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<B>make-instances-obsolete</B> <I>(<I>class</I><B> <A REL=DEFINITION HREF="t_symbol.htm#symbol">symbol</A></B>)</I><P>
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<P>
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<P><B>Arguments and Values:</B><P>
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<I>class</I>---a <A REL=DEFINITION HREF="26_glo_c.htm#class_designator"><I>class designator</I></A>. <P>
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<P><B>Description:</B><P>
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<P>
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The <A REL=DEFINITION HREF="26_glo_f.htm#function"><I>function</I></A> <A REL=DEFINITION HREF="#make-instances-obsolete"><B>make-instances-obsolete</B></A> has the effect of initiating the process of updating the instances of the <A REL=DEFINITION HREF="26_glo_c.htm#class"><I>class</I></A>. During updating, the generic function <A REL=DEFINITION HREF="f_upda_1.htm#update-instance-for-redefined-class"><B>update-instance-for-redefined-class</B></A> will be invoked. <P>
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The generic function <A REL=DEFINITION HREF="#make-instances-obsolete"><B>make-instances-obsolete</B></A> is invoked automatically by the system when <A REL=DEFINITION HREF="m_defcla.htm#defclass"><B>defclass</B></A> has been used to redefine an existing standard class and the set of local <A REL=DEFINITION HREF="26_glo_s.htm#slot"><I>slots</I></A> <A REL=DEFINITION HREF="26_glo_a.htm#accessible"><I>accessible</I></A> in an instance is changed or the order of <A REL=DEFINITION HREF="26_glo_s.htm#slot"><I>slots</I></A> in storage is changed. It can also be explicitly invoked by the user. <P>
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If the second of the above <A REL=DEFINITION HREF="26_glo_m.htm#method"><I>methods</I></A> is selected, that <A REL=DEFINITION HREF="26_glo_m.htm#method"><I>method</I></A> invokes <A REL=DEFINITION HREF="#make-instances-obsolete"><B>make-instances-obsolete</B></A> on <TT>(find-class </TT><I>class</I><TT>)</TT>. <P>
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<P><B>Examples:</B><P>
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<P>
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<P><B>Affected By:</B> None.
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<P>
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<P><B>Exceptional Situations:</B> None.
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<P>
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<P><B>See Also:</B><P>
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<P>
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<A REL=DEFINITION HREF="f_upda_1.htm#update-instance-for-redefined-class"><B>update-instance-for-redefined-class</B></A>, <A REL=CHILD HREF="04_cf.htm">Section 4.3.6 (Redefining Classes)</A> <P>
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<P><B>Notes:</B> None.
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