16 Dec
2002
16 Dec
'02
7:47 a.m.
Jerzy Karczmarczuk wrote:
Apparently the form (#) is considered illegal. It works on my Linux.
On Win2000: parse error on input ')'
(#) is legal Haskell 98, but it is illegal in GHC when -fglasgow-exts is on. It should have nothing to do with the platform. Thre reason is that GHC uses the syntax (# a, b #) for unboxed tuples. When GHC's language extensions are enabled, GHC parses '(#)' as '(#' and ')', which doesn't make sense. Solutions: 1) switch off the language extensions 2) use spaces around the hash: write ( # ) instead. Cheers, Wolfgang Thaller