testsuite/tests/lib/should_run/weak001.hs


1
2
3
4
5
6
7
8
9
10
11
12

import Foreign
import System.Mem.Weak

kill:: Ptr a -> IO ()
kill a = do
    w <- mkWeakPtr a Nothing
    addFinalizer a $
        deRefWeak w >> return ()

main:: IO ()
main = sequence_ . take 10000 . repeat $
    mallocBytes 100 >>= kill >> return ()