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sort :: (Ord a) => [t] -> [a]
But this is impossible
One way the impossible can occur is if it never can occur
“When the function returns, it could return a list of strings.”
“But it can't possibly return a list of strings.”
“Right!”
In fact, this function has a bug.
It never returns
Type checking found an infinite loop bug!
At compile time!!
continued...
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Copyright © 1999,2008 Mark Dominus |