Alexander Chen
Hi,
tensDigit.hs
tensDigit :: Integral a => a ->a tensDigit x = d where xLast = x `div` 10 d = xLast `mod` 10
prelude> load tensDigit.hs parse error on input ‘=’ Perhaps you need a 'let' in a 'do' block? e.g. 'let x = 5' instead of 'x = 5' 4 | d = xLast `mod` 10 | ^ [1 of 1] Compiling Main ( chapter7_8.hs, interpreted ) Failed, no modules loaded.
I suspect this has something to do with the spacing (since this is example code) if so could someone explain to me what the rules on spacing are so I can get past this. I am using a simple text editor so if someone has a recommendation for an IDE that simply takes care of this, much obliged!!
Try lining up the definitions in the where-clause. That'll do it. tensDigit :: Integral a => a ->a tensDigit x = d where xLast = x `div` 10 d = xLast `mod` 10 /M -- Magnus Therning OpenPGP: 0x927912051716CE39 email: magnus@therning.org twitter: magthe http://magnus.therning.org/ If you can tell the truth, you don't have to remember anything. — Mark Twain