[racket-dev] actionable items, was: comments on "comments on learning Racket"

Time to move it to a place easy to find? But why a macro? 


On Apr 28, 2014, at 1:10 PM, Ryan Culpepper <ryanc at ccs.neu.edu> wrote:

> On 04/28/2014 10:08 AM, Laurent wrote:
>> On Mon, Apr 28, 2014 at 3:47 PM, Matthias Felleisen
>> <matthias at ccs.neu.edu <mailto:matthias at ccs.neu.edu>> wrote:
>> [...]
>> 
>> Why not something like `apply->list` or `apply/list`?
>> (personally I usually call it `cvl` for call/values->list, but that's
>> because I often use it on the command line, which makes going from `(foo
>> 'a 'b 'c)` to `(cvl foo 'a 'b 'c)` effortless)
>> 
>>         (define (nth-return-value i f . s)
>>           (call-with-values
>>            (lambda () (apply f s))
>>            (lambda l (list-ref l i))))
> 
> unstable/list has an unexported 'values->list' macro that takes an expression and returns the list of values it produces.
> 
> Ryan
> 
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