Hello,<br><br> I am writing a function(actually much more than this):<br><br>bozo :: Char -> Char <br>bozo 0x02 = 'a'<br>...<br><br>However, I get complaints from ghc suggesting that I should add an "instance declaration (Num, Char). I (mistaking) thought I understood the Haskell class hierarchy and the associated constraints .. but apparently not .. => help please. Should
<br><br>Kind regards, Vasya<br>