[Haskell-cafe] Re: Query on list comprehension

[Jon Fairbairn]

Henning Thielemann <lemming at henning-thielemann.de> writes:

> On Tue, 17 Mar 2009, Melanie_Green wrote:
>
>> What are the limitations of list comprehension. I want to use
>> listcomprehension to output the pattern below. So a mixture of a's and
>> newline characters. The part im stuck at is creating arguments in the
>> listcomprehension to stop at some point then execute next loop. Is it even
>> possible to create the pattern below purely from list comprehension.Thankyou
>> in advance.
>>
>> a
>> aa
>> aaa
>
> iterate ('a':) "\n"

Game to Henning Thielemann!

-- 
Jón Fairbairn                                 Jon.Fairbairn at cl.cam.ac.uk
http://www.chaos.org.uk/~jf/Stuff-I-dont-want.html  (updated 2009-01-31)