Re: [Haskell-cafe] Re: Channel9 Interview: Software Composability and theFu ture of Languages

Kirsten Chevalier wrote:

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On Wed, 2007-01-31 at 19:51 +1100, Donald Bruce Stewart wrote: . . .

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foldl (\water dish -> wash water dish) soapywater dishes ::

[Dishes]

Nice example. First, note that you can't get close with map -- you need accumulation across the dishes. [...] It also assumes that there's necessarily a natural decomposition on

On 1/31/07, Bill Wood wrote: the dishes, and if you think there is, you haven't seen my kitchen!

Using a lazy fold may not be the best choice. Although it may sound enticing to delay washing until a clean dish is actually required (and having the dirty dishes removed by the garbage collector, hopefully before they start naturally decomposing), you will quickly run out of stack space. -k