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On 8 September 2011 19:33, Gé Weijers <> wrote:
Well part of the problem is that multiple return values is hardly new
and certainly predates Lua by probably a decade. I used Poplog in the
1980s and that had multiple return values. I doubt that Poplog was the
first language to have this feature either.

Clu (Liskov et. al., 1974) had both multiple return values and iterators/generators.

Any language with native support for tuples (or equivalent constructs) can do multiple returns trivially, so this dates back to Lisp at least, which puts it as about 1959.

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