[GHC] #5572: factorial.hs:3:12: Parse error in pattern: n + 1

[GHC]

#5572: factorial.hs:3:12: Parse error in pattern: n + 1
-------------------------+--------------------------------------------------
  Reporter:  francisco   |          Owner:        
      Type:  bug         |         Status:  closed
  Priority:  normal      |      Milestone:        
 Component:  GHCi        |        Version:  7.0.3 
Resolution:  invalid     |       Keywords:        
  Testcase:              |      Blockedby:        
Difficulty:              |             Os:  Linux 
  Blocking:              |   Architecture:  x86   
   Failure:  GHCi crash  |  
-------------------------+--------------------------------------------------

Comment(by daniel.is.fischer):

 You either pass it on the command line, or put it in a language pragma at
 the top of your file
 {{{
 $ ghci -XNPlusKPatterns factorial.hs

 or

 factorial.hs:
 -- comments maybe
 {-# LANGUAGE NPlusKPatterns #-}
 module Main where
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5572#comment:4>
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