[Haskell-beginners] Meaning of variable'

[Bas van Dijk]

On Sun, Jan 4, 2009 at 6:55 AM, Brandon S. Allbery KF8NH
<allbery at ece.cmu.edu> wrote:
> On 2009 Jan 4, at 0:52, Erik de Castro Lopo wrote:
>>
>>   function' = .....
>>
>> What does the tick mean??
>
>
> By convention it signals a variant of the function without the tick...

The tick is often used to signal a more strict variant of the function
without the tick.

See foldl and foldl' for example:

http://haskell.org/ghc/docs/latest/html/libraries/base/Data-List.html#v:foldl

regards,

Bas