Re: [Haskell-cafe] error on "--++ bla bla bla"

But in my program, I did not define "--++". Also in GHCI, Prelude> :t (--++) No in scope: '--++' Prelude> :t (+) (+) :: (Num a) => a -> a -> a Thanks, Hong On Wed, Sep 30, 2009 at 7:05 PM, Daniel Peebles wrote:

I don't think it's a bug. --++ is a valid operator, whereas -- introduces a comment.

In GHCI:

Prelude> let (--++) = (+) in 5 --++ 6 11

Hope this helps, Dan

On Wed, Sep 30, 2009 at 7:52 PM, Hong Yang wrote:

...

Hi,

I got an error if one of lines reads "--++ bla bla bla" where I tried to comment, but "-- ++ bla bla bla" (notice the space after "--") is OK.

Do you think this revealed a tiny bug in the GHC compiler (I am using Windows Haskell Platform 2009.2.0.2)?

Thanks,

Hong

_______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe