[Haskell] Space behaviour & hyperseq

[Scott Turner]

On 2004 June 17 Thursday 08:45, Arjan van IJzendoorn wrote:
> function hyperseq and then applying it before the next iterations
> begins:
> hyperseq x y = if x==x then y else error "this is very unlikely"
> This is very expensive

The concept of DeepSeq bothers me, because usually more limited use of 
strictness will do the job, and sometimes total strictness can't be used.  
Alternatives are strictList_ and strictList as defined in the "Prelude 
Extensions" at 
     http://haskell.org/hawiki/PreludeExts
You could substitute
     seq (strictList x) y
for hyperseq x y.