chr and ord not in standard prelude

2007-03-09 Thread Colletta, Edward 
When I try to use functions chr or ord, I get a not in scope error.
If I :browse Prelude I do not see these functions.  Is there another
module I should load?
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Re: chr and ord not in standard prelude

2007-03-09 Thread Mark Hills 
It looks like these are in module Char:

 ghci
   ___ ___ _
  / _ \ /\  /\/ __(_)
 / /_\// /_/ / /  | |  GHC Interactive, version 6.6, for Haskell 98.
/ /_\\/ __  / /___| |  http://www.haskell.org/ghc/
\/\/ /_/\/|_|  Type :? for help.

Loading package base ... linking ... done.
Prelude Char.chr 65
'A'
Prelude Char.ord 'A'
65

Colletta, Edward wrote:

 When I try to use functions chr or ord, I get a not in scope error.
 If I :browse Prelude I do not see these functions.  Is there another
 module I should load?

 

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Re: chr and ord not in standard prelude

2007-03-09 Thread Stefan O'Rear 
On Fri, Mar 09, 2007 at 03:40:08PM -0500, Colletta, Edward wrote:
 When I try to use functions chr or ord, I get a not in scope error.
 If I :browse Prelude I do not see these functions.  Is there another
 module I should load?

Don't use chr and ord - they aren't polymorphic, they restrict your
code to work only on Chars.  Use fromEnum and toEnum (which are in the
Prelude) instead. 

Stefan
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