[Haskell-cafe] Insert a laziness break into strict ST

[Henning Thielemann]

On Sun, 6 Dec 2009, Antoine Latter wrote:

> On Sun, Dec 6, 2009 at 5:46 PM, Henning Thielemann
>
>> I hoped to get the first answer also for the second command. It seems
>> that conversion from lazy to strict ST also removes laziness breaks.
>>
>> It seems that I have to stick to unsafeInterleaveIO, but I like to know,
>> why the above method does not work.
>
> This isn't the answer you want, but there is an unsafeInterleaveST.

This was a typo, I actually meant unsafeInterleaveST.

So, I'm still uncertain why the conversion to lazy ST and back does not 
work. I feel, that I have still not understood what "lazy" ST actually 
means.