[Grace-core] FYI: Notes on Multiple Returns

[Andrew P Black]

On 17 Aug 2015, at 17:19 , Marco Servetto <marco.servetto at gmail.com> wrote:

> Well... "Grace nor most popular languages allow this"
> 
> python does allow easy tuple stuff.
> 
> a,b=myfun()
> 

Yes, and we are talking about allowing Tuples in Grace too.  But that is a different topic.

The statement that I made is, I believe, true.   Emerald is the only language that I can think of that allowed multiple returns.  An operation that returned a single value could be used as an expression, but those that returned no values, or two or more values, could only be used in an assignment like 

	 a, b ← myfun(x,y)

What other languages do you know of that allow multiple returns?


	Andrew

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