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31 lines
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<!-- Common Lisp HyperSpec (TM), version 7.0 generated by Kent M. Pitman on Mon, 11-Apr-2005 2:31am EDT -->
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<TITLE>CLHS: Section 9.1.4.1.1</TITLE>
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<H1><A REV=MADE HREF="http://www.lispworks.com/"><IMG WIDTH=80 HEIGHT=65 ALT="[LISPWORKS]" SRC="../Graphics/LWSmall.gif" ALIGN=Bottom></A><A REL=TOP HREF="../Front/index.htm"><IMG WIDTH=237 HEIGHT=65 ALT="[Common Lisp HyperSpec (TM)]" SRC="../Graphics/CLHS_Sm.gif" ALIGN=Bottom></A> <A REL=PREV HREF="09_ada.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Previous]" SRC="../Graphics/Prev.gif" ALIGN=Bottom></A><A REL=UP HREF="09_ada.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Up]" SRC="../Graphics/Up.gif" ALIGN=Bottom></A><A REL=NEXT HREF="09_adb.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Next]" SRC="../Graphics/Next.gif" ALIGN=Bottom></A></H1>
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9.1.4.1.1 Resignaling a Condition</H2> <P>
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During the <A REL=DEFINITION HREF="26_glo_d.htm#dynamic_extent"><I>dynamic extent</I></A> of the <I>signaling</I> process for a particular <A REL=DEFINITION HREF="26_glo_c.htm#condition"><I>condition</I></A> <A REL=DEFINITION HREF="26_glo_o.htm#object"><I>object</I></A>, <B>signaling</B> the same <A REL=DEFINITION HREF="26_glo_c.htm#condition"><I>condition</I></A> <A REL=DEFINITION HREF="26_glo_o.htm#object"><I>object</I></A> again is permitted if and only if the <A REL=DEFINITION HREF="26_glo_s.htm#situation"><I>situation</I></A> represented in both cases are the same. <P>
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For example, a <A REL=DEFINITION HREF="26_glo_h.htm#handler"><I>handler</I></A> might legitimately <A REL=DEFINITION HREF="26_glo_s.htm#signal"><I>signal</I></A> the <A REL=DEFINITION HREF="26_glo_c.htm#condition"><I>condition</I></A> <A REL=DEFINITION HREF="26_glo_o.htm#object"><I>object</I></A> that is its <A REL=DEFINITION HREF="26_glo_a.htm#argument"><I>argument</I></A> in order to allow outer <A REL=DEFINITION HREF="26_glo_h.htm#handler"><I>handlers</I></A> first opportunity to <A REL=DEFINITION HREF="26_glo_h.htm#handle"><I>handle</I></A> the condition. (Such a <A REL=DEFINITION HREF="26_glo_h.htm#handler"><I>handlers</I></A> is sometimes called a ``default handler.'') This action is permitted because the <A REL=DEFINITION HREF="26_glo_s.htm#situation"><I>situation</I></A> which the second <I>signaling</I> process is addressing is really the same <A REL=DEFINITION HREF="26_glo_s.htm#situation"><I>situation</I></A>. <P>
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On the other hand, in an <A REL=DEFINITION HREF="26_glo_i.htm#implementation"><I>implementation</I></A> that implemented asynchronous keyboard events by interrupting the user process with a call to <A REL=DEFINITION HREF="f_signal.htm#signal"><B>signal</B></A>, it would not be permissible for two distinct asynchronous keyboard events to <A REL=DEFINITION HREF="26_glo_s.htm#signal"><I>signal</I></A> <A REL=DEFINITION HREF="26_glo_i.htm#identical"><I>identical</I></A> <A REL=DEFINITION HREF="26_glo_c.htm#condition"><I>condition</I></A> <A REL=DEFINITION HREF="26_glo_o.htm#object"><I>objects</I></A> at the same time for different situations. <P>
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<P><HR>The following <A REL=META HREF="../Front/X3J13Iss.htm">X3J13 cleanup issue</A>, <I>not part of the specification</I>, applies to this section:<P><UL><LI> <A REL=CHILD HREF="../Issues/iss076.htm">CONDITION-RESTARTS:PERMIT-ASSOCIATION</A><P></UL><HR>
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<A REL=NAVIGATOR HREF="../Front/StartPts.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Starting Points]" SRC="../Graphics/StartPts.gif" ALIGN=Bottom></A><A REL=TOC HREF="../Front/Contents.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Contents]" SRC="../Graphics/Contents.gif" ALIGN=Bottom></A><A REL=INDEX HREF="../Front/X_Master.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Index]" SRC="../Graphics/Index.gif" ALIGN=Bottom></A><A REL=INDEX HREF="../Front/X_Symbol.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Symbols]" SRC="../Graphics/Symbols.gif" ALIGN=Bottom></A><A REL=GLOSSARY HREF="../Body/26_a.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Glossary]" SRC="../Graphics/Glossary.gif" ALIGN=Bottom></A><A HREF="../Front/X3J13Iss.htm"><IMG WIDTH=80 HEIGHT=40 ALT="[Issues]" SRC="../Graphics/Issues.gif" ALIGN=Bottom></A><BR>
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<A REL=COPYRIGHT HREF="../Front/Help.htm#Legal"><I>Copyright 1996-2005, LispWorks Ltd. All rights reserved.</I></A><P>
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