Opened 17 months ago

Last modified 12 months ago

#15462 new bug

fixST for lazy ST is a bit wrong

Reported by: dfeuer Owned by:
Priority: normal Milestone: 8.10.1
Component: Core Libraries Version: 8.4.3
Keywords: Cc:
Operating System: Unknown/Multiple Architecture: Unknown/Multiple
Type of failure: Incorrect result at runtime Test Case:
Blocked By: Blocking:
Related Tickets: #15349 Differential Rev(s):
Wiki Page:


#15349 exposed a problem with repeated computations in invocations of fixST that should fail but can instead produce answers or even subvert safe Haskell. That has been fixed for strict ST, but not yet for lazy ST.

Change History (1)

comment:1 Changed 12 months ago by osa1


Bumping milestones of low-priority tickets.

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