Lazy (take-while)

[Scott Heidbrink]

You say this is NOT filter. How is it different than filter? or was that to say we can't use the (filter) function in our implementation?

[Jay McCarthy]

(filter even? (list 1 2 3 4 5 6)) = (list 2 4 6)
(take-while even? (list 1 2 3 4 5 6)) = empty
(filter odd? (list 1 2 3 4 5 6)) = (list 1 3 5)
(take-while odd? (list 1 2 3 4 5 6)) = (list 1)

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--
Jay McCarthy <j...@cs.byu.edu>
Assistant Professor / Brigham Young University
http://faculty.cs.byu.edu/~jay

"The glory of God is Intelligence" - D&C 93

[Scott Heidbrink]

o ok that makes sense then.

On Wednesday, December 4, 2013 2:32:27 PM UTC-7, Jay McCarthy wrote:

(filter even? (list 1 2 3 4 5 6)) = (list 2 4 6)
(take-while even? (list 1 2 3 4 5 6)) = empty
(filter odd? (list 1 2 3 4 5 6)) = (list 1 3 5)
(take-while odd? (list 1 2 3 4 5 6)) = (list 1)

On Wed, Dec 4, 2013 at 2:31 PM, Scott Heidbrink
<scott.h...@gmail.com> wrote:
> You say this is NOT filter. How is it different than filter? or was that to
> say we can't use the (filter) function in our implementation?
>
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