Re: [Haskell-cafe] a newbie's question

21 Apr 2005


      You forgot to bind a name to your do-expression.  Try:

foo = do x <- a
         y <- b
         return (x,y)

On Thu, 21 Apr 2005, SCOTT J. wrote:

] Hi, 
] 
] I'm beginning to study Haskell, For the following
] 
] a = [1,2,3]
] 
] b = "there"
] 
] 
] 
] do x <- a
] 
]       y <- b 
] 
]      return (x , y) 
] 
] Winhugs cannot run it. Gives
] 
]  Syntax error in input (unexpected backslash (
] lambda))                                                                                   

-- 
Tom Harke
Ph.D. Student
Computer Science
Portland State University