Paul Dufresne wrote:
In
http://www.mozart-oz.org/documentation/base/record.html#section.records.records
one can read:
"Adjoin {Record.adjoin +R1 +R2 ?R3} returns the result of adjoining R2 to R1.
For example, {Adjoin a(a b c: 1) b(4 b: 3 c: 2)}
yields the record b(4 b b: 3 c: 2) as output."
Should it reads "returns the result of adjoining R1 to R2."?
And, if I understand this right, I would have formulated:
"returns R2 with all features (and their corresponding values) of R1 not
already present in R2."
To be honest I have myself never been at ease with that definition of
Adjoin. Your proposal makes sense if you understand "adjoin" as "add if
not present". I have looked a bit at the use of "adjoin" in other
programming languages (notably LISP), and they correspond to what you wrote.
If people agree, we may fix this in the documentation of the upcoming
release (1.3.2).
Cheers,
raph
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