Help with ghci and Yet Another Haskell Tutorial
Hal Daume
t-hald@microsoft.com
Fri, 27 Jun 2003 08:17:05 -0700
toUpper is in the Char (or Data.Char) library. You can do:
Prelude> :m Data.Char
Data.Char> map toUpper "hello world"
or specify it completely.
Prelude> map Data.Char.toUpper "hello world"
I'll fix this reference in YAHT. I believe that Hugs automatically
exports toUpper, which is why it was in there to begin with.
- Hal
--
Hal Daume III | hdaume@isi.edu
"Arrest this man, he talks in maths." | www.isi.edu/~hdaume
-----Original Message-----
From: haskell-cafe-admin@haskell.org
[mailto:haskell-cafe-admin@haskell.org] On Behalf Of Mark Espinoza
Sent: Friday, June 27, 2003 7:53 AM
To: haskell-cafe@haskell.org
Subject: Help with ghci and Yet Another Haskell Tutorial
Greetings,
I am going through the Tutorial using ghc on a redhat 8.0 system.
Everything works fine untill I get to the map function:
Prelude> map toUpper "hello world"
<interactive>:1: Variable not in scope: `toUpper'
Prelude>
Can anyone tel me what is or might be going on?
Thanks.
Sincerely,
Mark
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