On 20 October 2004 10:22, Ketil Malde wrote:

I've recently run into a problem using the preprocessor (ghc -cpp). It seems it barfs on 's (apostrophe). Annoying, since naming variables something-prime is a fairly common idiom.

Is this something that has a workaround, or could be fixed?

(The specific problem is redefining 'head' in a macro and using it like:

let w' = head ... -- breaks

One workaround is to write it as:

let w' = head ... -- works )

That shouldn't happen, and indeed it doesn't happen to us. Could you provide more details: platform, GHC & GCC versions, and sample code that exhibits the problem. Probably best to move this to glasgow-haskell-bugs@haskell.org too. Cheers, Simon