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<p>
Next: <a href="make_002dsequence.html" accesskey="n" rel="next">make-sequence</a>, Previous: <a href="elt.html" accesskey="p" rel="prev">elt</a>, Up: <a href="Sequences-Dictionary.html" accesskey="u" rel="up">Sequences Dictionary</a> </p>
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<span id="fill-_005bFunction_005d"></span><h4 class="subsection">17.3.4 fill [Function]</h4>
<p><code>fill</code> <i>sequence item <span class="roman">&key</span> start end</i> ⇒ <i>sequence</i>
</p>
<span id="Arguments-and-Values_003a_003a-356"></span><h4 class="subsubheading">Arguments and Values::</h4>
<p><i>sequence</i>—a <i>proper sequence</i>.
</p>
<p><i>item</i>—a <i>sequence</i>.
</p>
<p><i>start</i>, <i>end</i>—<i>bounding index designators</i> of <i>sequence</i>.
The defaults for <i>start</i> and <i>end</i> are <tt>0</tt> and <b>nil</b>, respectively.
</p>
<span id="Description_003a_003a-471"></span><h4 class="subsubheading">Description::</h4>
<p>Replaces the <i>elements</i> of <i>sequence</i>
<i>bounded</i> by <i>start</i> and <i>end</i>
with <i>item</i>.
</p>
<span id="Examples_003a_003a-338"></span><h4 class="subsubheading">Examples::</h4>
<div class="example">
<pre class="example"> (fill (list 0 1 2 3 4 5) '(444)) ⇒ ((444) (444) (444) (444) (444) (444))
(fill (copy-seq "01234") #\e :start 3) ⇒ "012ee"
(setq x (vector 'a 'b 'c 'd 'e)) ⇒ #(A B C D E)
(fill x 'z :start 1 :end 3) ⇒ #(A Z Z D E)
x ⇒ #(A Z Z D E)
(fill x 'p) ⇒ #(P P P P P)
x ⇒ #(P P P P P)
</pre></div>
<span id="Side-Effects_003a_003a-51"></span><h4 class="subsubheading">Side Effects::</h4>
<p><i>Sequence</i> is destructively modified.
</p>
<span id="Exceptional-Situations_003a_003a-152"></span><h4 class="subsubheading">Exceptional Situations::</h4>
<p>Should be prepared to signal an error of <i>type</i> <b>type-error</b>
if <i>sequence</i> is not a <i>proper sequence</i>.
Should signal an error of <i>type</i> <b>type-error</b>
if <i>start</i> is not a non-negative <i>integer</i>.
Should signal an error of <i>type</i> <b>type-error</b>
if <i>end</i> is not a non-negative <i>integer</i> or <b>nil</b>.
</p>
<span id="See-Also_003a_003a-383"></span><h4 class="subsubheading">See Also::</h4>
<p><a href="replace.html">replace</a>
, <b>nsubstitute</b>
</p>
<span id="Notes_003a_003a-258"></span><h4 class="subsubheading">Notes::</h4>
<p><tt>(fill <i>sequence</i> <i>item</i>) ≡
(nsubstitute-if <i>item</i> (constantly t) <i>sequence</i>)</tt>
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