Re: CPP is not part of Haskell

[Lennart Augustsson]

George Russell wrote:

> Simon Peyton-Jones wrote:
> > One solution is to add
> > macros (presumably in a more hygienic form than cpp), but I'm reluctant
> > to advocate that, because macros undoubtedly do overlap with functions.
> You don't need macros.  (For speed purposes inline functions are obviously
> better.)

I guess you have not been in contact with the Real World (tm).  :-)
If you have a program that needs to compile in say, Haskell 1.3 and Haskell 98,
then you need some kind of preprocessor.  Try changing the syntax of e.g. the
export list with a boolean function.
It's a nasty business, and I'm not advocating the use of preprocessors, but
sometimes it's needed.

--

        -- Lennart