On Sat, Nov 13, 2010 at 10:20:31AM -0600, Larry Evans wrote:
The attached program fails to compile despite it being a close copy of that shown in the Reference: comments. The ghci invocation
Reference: First code example here: http://www.haskell.org/onlinereport/haskell2010/haskellch5.html#x11-980005
Note the distinction between a Haskell *program* (as defined in that section of the Report) and a *file* on your file system. A "program" as defined in the Report is an abstract entity consisting of a collection of modules; the relationship between programs and files is not specified. As it happens, GHC does not support having multiple modules in the same file, although it is conceivable that another compiler might (although I do not know of any). -Brent