Two questions on module ST: http://www.haskell.org/ghc/docs/latest/set/sec-st.html 1. What's the 's' parameter for? 2. Do STRefs get garbage-collected once they're forgotten? For instance, if I have an action that calls newSTRef, uses the ref, and then forgets it, and I run the action repeatedly, am I at risk of running out of memory? -- Ashley Yakeley, Seattle WA
On 27-Jul-2001, Ashley Yakeley
Two questions on module ST: http://www.haskell.org/ghc/docs/latest/set/sec-st.html
1. What's the 's' parameter for?
It makes sure you don't try to use a reference obtained from one state thread in a different state thread.
2. Do STRefs get garbage-collected once they're forgotten?
In any decent implementation, yes.
--
Fergus Henderson
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Ashley Yakeley -
Fergus Henderson