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docbook-style-dsssl-doc-1.79-16.mga7.noarch.rpm

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>list-member-find</H1
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>Name</H2
>list-member-find&nbsp;--&nbsp;Returns the index of an element in a list</DIV
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>(list-member-find element elementlist)</PRE
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>Description</H2
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>Returns the index of <TT
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>element</TT
> in the list <TT
CLASS="LITERAL"
>elementlist</TT
>. The
first element in a list has index 0.</P
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>Author</H2
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>Norman Walsh, &lt;ndw@nwalsh.com&gt;</P
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>(define (list-member-find element elementlist)
  ;; Returns the index of an element in a list
  (let loop ((elemlist elementlist) (count 0))
    (if (null? elemlist)
	-1
	(if (equal? element (car elemlist))
	    count
	    (loop (cdr elemlist) (+ count 1))))))</PRE
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