Re: Multiple return values

smryan@mail.com (!@?*$%)
20 Apr 1997 12:06:30 -0400

          From comp.compilers
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Re: Multiple return values icedancer@ibm.net (1997-04-18)
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Re: Multiple return values fjh@mundook.cs.mu.OZ.AU (1997-04-18)
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Re: Multiple return values preston@tera.com (1997-04-18)
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Re: Multiple return values smryan@mail.com (1997-04-20)
Re: Multiple return values danwang@dynamic.CS.Princeton.EDU (1997-04-20)
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Re: Multiple return values tiggr@es.ele.tue.nl (1997-04-20)
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Re: Multiple return values fjh@mundook.cs.mu.OZ.AU (1997-04-22)
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[20 later articles]
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From: smryan@mail.com (!@?*$%)
Newsgroups: comp.compilers,comp.lang.misc
Date: 20 Apr 1997 12:06:30 -0400
Organization: The Programmer formerly known as S M Ryan
References: 97-04-091 97-04-109
Keywords: design, comment

> Many if not most programming languages allow procedures with
> multiple output arguments. For example, instead of
>
> (x, y) = foo(a, b);
>
> in C you can write
>
> foo(a, b, &x, &y);


These are semantically distinct. The second requires additional notions
such as variables, addresses, assignments, nonlocal side effects,
aliassing, etc.


--
| S M Ryan, Cupertino CA
| mail to: smryan@mail.com
[They're different, but I don't think the issues are very different. Consider
something like (y, x) = foo(x, y), where x and y may be passed by reference.
-John]
--

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