Hi Conal,
| Would it be reasonably easy to add Int64 (long long) support to the Hugs
| implementation of the GHC/Hugs shared Int module (lib/exts/Int.hs)? I
| need it for a HaskellDirect-generated interface?
I can think of two ways that this might be accomplished. The first would
be to add a new primitive datatype, and corresponding operations. I don't
know if long long is supported on all the platforms that we target, but
it could be a build-time configuration option. The second would be to
code things up in Haskell, for example using:
data Int64 = I64 Int32 Int32
(or perhaps just using Integer). This would probably be slower, and
more painful to implement, but perhaps more portable.
A third alternative would be simply to define:
type Int64 = Int32
Of course this would be dangerous if you thought that your particular
application might need more than 32 bits of each Int64 value. But it
might also be a quick workaround in some situations until somebody finds
the time to build a proper Int64 implementation.
All the best,
Mark
