[mercury-users] maybe(T)

[Michael Day]

> 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 :)

Michael

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