On Jul 11, 2013, at 2:23 PM, Laurent wrote:

> Then why not return lists instead of values? 


Error checking. See Dybvig's paper, which extensively explores multiple value 
implementations: 

> J. Michael Ashley and R. Kent Dybvig. An efficient implementation of multiple 
> return values in Scheme. In Proceedings of the 1994 ACM Conference on Lisp 
> and Functional Programming, 140-149, June 1994. Describes Chez Scheme's 
> implementation of the Scheme multiple return values interface.
> 
> 


On: http://www.cs.indiana.edu/chezscheme/pubs/





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