[Haskell-cafe] Re: [Haskell] Re: Global Variables and
k.schupke at imperial.ac.uk
Mon Nov 8 13:48:32 EST 2004
Adrian Hey wrote:
>The problem is simple enough to restate for anyone who's interested.
>"Provide a simple reliable mechanism to ensure that in a given
> program run one particular top level IO operation cannot be executed
> more than once."
No language can guarantee this - all I have to do is run 2 copies of
the executable at once... or wven sequentially!
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