11 Oct
2009
11 Oct
'09
4:26 a.m.
* Simon Marlow:
Oleg's example is quite close, don't you think?
URL: http://www.haskell.org/pipermail/haskell/2009-March/021064.html
Ah yes, if you have two lazy input streams both referring to the same underlying stream, that is enough to demonstrate a problem. As for whether Oleg's example is within the rules, it depends whether you consider fdToHandle as "unsafe":
Is relying on seq to show the difference allowed, according to your rules on an insecurity proof? What about handles from System.Process? Do they count as well?