[Haskell] Issue about use of WinHugs

Zhao, Bingfeng Bingfeng.Zhao at ca.com
Fri Aug 24 06:03:37 EDT 2007

Hi, list
I'm new to WinHugs, what's wrong with isUpper of my WinHugs?

Hugs> filter isUpper "ABCDEfgh"
ERROR - Undefined variable "isUpper"
Hugs> filter Char.isUpper "ABCDEfgh"
ERROR - Undefined qualified variable "Char.isUpper"
Hugs> :version
-- Hugs Version Sep 2006

Best Regards,

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