I don't know if this will help, but I am using GHC Interactive, version 5.03, for Haskell 98, and I wanted to use the 'toUpper' function. 'toUpper' is defined in Data.Char, but is not loaded when ghci is started: Prelude> :info toUpper Variable not in scope: `toUpper' To bring 'toUpper' into scope, I put "import Char" in my program (a very simple program named "Text1.hs"): module Text1 where import Char f = Char.toUpper 'a' After starting ghci from the operating system shell, I enter ":load <program name>" at the ghci prompt, then evaluate the function 'f': [localhost:~/Documents/myHaskellProgs] richard% ghci . . . Loading package base ... linking ... done. Loading package haskell98 ... linking ... done. Prelude> :load Text1.hs Compiling Text1 ( Text1.hs, interpreted ) Ok, modules loaded: Text1. *Text1> f 'A' *Text1> Richard E. Adams Email: r.adams@computer.org (or) radams@iglide.net On Saturday, November 16, 2002, at 06:55 AM, Mark Carroll wrote:
Where do I find foldl' in GHC? It's mentioned on http://www.haskell.org/ghc/docs/latest/html/base/Data.List.html but importing List and using "-package data" don't seem to make it appear. I'm using GHC 5.02.2. I must be making some simple mistake.
-- Mark
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