Oh, I see... Thank you, it works now with NoMonomorphismRestriction. The error message is extremely misleading though... And so is the type signature inferred by the compiler.<br><br><div class="gmail_quote">2010/1/10 Bulat Ziganshin <span dir="ltr">&lt;<a href="mailto:bulat.ziganshin@gmail.com">bulat.ziganshin@gmail.com</a>&gt;</span><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">it&#39;s a Monomorphism Restriction of Haskell&#39;98, disabled with -XNoMonomorphismRestriction<br>
</blockquote></div>