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<p>Hi Lawrence,</p>
<p>it seems that you are trying to print your defined function. Most
likely you just forgot to apply an argument to fswp. So 'fswp
(1,2)' should just work fine.</p>
<p>Cheers,</p>
<p>Tobias<br>
</p>
<div class="moz-cite-prefix">On 9/9/21 11:25 PM, Galaxy Being wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAFAhFSVXqqo9SuRrO9VQKQ7_40get2q8WBYB8TsSBDNAomyWcg@mail.gmail.com">
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<div dir="ltr">I've got this
<div><br>
</div>
<div><font face="monospace">import Data.Tuple<br>
</font></div>
<div><font face="monospace">fswp :: (a, b) -> (b, a)<br>
fswp = Data.Tuple.swap<br>
</font></div>
<div><br>
</div>
<div>and get this </div>
<div><br>
</div>
<div> <font face="monospace">• No instance for (Show ((a0, b0)
-> (b0, a0)))<br>
arising from a use of ‘print’<br>
(maybe you haven't applied a function to enough
arguments?)<br>
• In a stmt of an interactive GHCi command: print it</font><br>
</div>
<div><br>
</div>
<div>Not sure why or what to do to correct it.</div>
<div><br clear="all">
<div>⨽<br>
</div>
<div dir="ltr" class="gmail_signature"
data-smartmail="gmail_signature">
<div dir="ltr">Lawrence Bottorff
<div>Grand Marais, MN, USA</div>
<div><a href="mailto:borgauf@gmail.com" target="_blank"
moz-do-not-send="true">borgauf@gmail.com</a></div>
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