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32 lines
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<TITLE>CLHS: Section 6.1.2.1.2</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="06_abaaa.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Previous]" SRC="../Graphics/Prev.gif" ALIGN=Bottom></A><A REL=UP HREF="06_aba.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Up]" SRC="../Graphics/Up.gif" ALIGN=Bottom></A><A REL=NEXT HREF="06_ababa.htm"><IMG WIDTH=40 HEIGHT=40 ALT="[Next]" SRC="../Graphics/Next.gif" ALIGN=Bottom></A></H1>
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<H2>
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6.1.2.1.2 The for-as-in-list subclause</H2> <P>
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In the <I>for-as-in-list</I> subclause, the <TT>for</TT> or <TT>as</TT> construct iterates over the contents of a <A REL=DEFINITION HREF="26_glo_l.htm#list"><I>list</I></A>. It checks for the end of the <A REL=DEFINITION HREF="26_glo_l.htm#list"><I>list</I></A> as if by using <A REL=DEFINITION HREF="f_endp.htm#endp"><B>endp</B></A>. The variable <I>var</I> is bound to the successive elements of the <A REL=DEFINITION HREF="26_glo_l.htm#list"><I>list</I></A> in <I>form1</I> before each iteration. At the end of each iteration, the function <I>step-fun</I> is applied to the <A REL=DEFINITION HREF="26_glo_l.htm#list"><I>list</I></A>; the default value for <I>step-fun</I> is <A REL=DEFINITION HREF="f_car_c.htm#cdr"><B>cdr</B></A>. The <A REL=DEFINITION HREF="26_glo_l.htm#loop_keyword"><I>loop keywords</I></A> <TT>in</TT> and <TT>by</TT> serve as valid prepositions in this syntax. The <TT>for</TT> or <TT>as</TT> construct causes termination when the end of the <A REL=DEFINITION HREF="26_glo_l.htm#list"><I>list</I></A> is reached. <P>
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<A REL=CHILD HREF="06_ababa.htm"><H2>
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6.1.2.1.2.1 Examples of for-as-in-list subclause</H2></A><P><HR>
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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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