[mercury-users] maybe(T)

[Ralph Becket]

Michael Day, Monday, 21 October 2002:
> 
> > Is this an issue you have to deal with or just a point of interest? -
> 
> I'm not depending on being able to pass a maybe(T) to C code (presumably
> where T is some foreign_type) and having it interoperate nicely. Although
> that would be nice to be able to do, and simplify some code I have
> written. My main concern was that using maybe(T) wouldn't introduce
> unnecessary extra pointer manipulation; if it has no space/time overhead
> then no problem :)

Remember that for the C back ends you can use `pragma export' to pass
functions that act as surrogate constructors and destructors.

- Ralph
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