Hello,<br><br>&nbsp;&nbsp;&nbsp;&nbsp; Using a strongly-typed language so should just have to check &quot;domain&quot; and &quot;co-domain&quot; of functions?<br><br>Vasili<br><br><br><div class="gmail_quote">On Fri, Dec 26, 2008 at 11:13 PM, Galchin, Vasili <span dir="ltr">&lt;<a href="mailto:vigalchin@gmail.com">vigalchin@gmail.com</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hello,&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; I have a ByteString -&gt; [ByteString] -&gt; ByteString situation, i.e. concatenation .....<br>
<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -- marshall into ByteString representation<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; join<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (encode (buildHeader ss))&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; -- ByteString<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (map encode (buildEntries (sequenceListExtract ss)))&nbsp; -- [ByteString]<br>&nbsp;<br><br>I get the following typecheck error which is vexing me ....<br><br>&nbsp;&nbsp;&nbsp; Couldn&#39;t match expected type `t -&gt; t -&gt; B.ByteString&#39;<br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; against inferred type `B.ByteString&#39;<br><br>???<br><br>Thanks, Vasili<br><br><br><br><br><br><br>
</blockquote></div><br>