CurryInfo: base-3.4.0 / Prelude.span
definition: 
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span :: (a -> Bool) -> [a] -> ([a], [a])
span _ [] = ([], [])
span p (x:xs) | p x = let (ys, zs) = span p xs in (x : ys, zs)
| otherwise = ([], x : xs)
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demand:
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argument 2 |
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deterministic:
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deterministic operation |
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documentation:
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`span p xs` is equivalent to `(takeWhile p xs, dropWhile p xs)` |
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failfree:
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(_, _) |
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indeterministic:
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referentially transparent operation |
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infix:
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no fixity defined |
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iotype:
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{(_,{[]}) |-> {(,)} || (_,{:}) |-> {(,)}}
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name:
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span |
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precedence:
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no precedence defined |
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result-values:
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{(,)}
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signature:
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(a -> Bool) -> [a] -> ([a], [a]) |
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solution-complete:
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operation might suspend on free variables |
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terminating:
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yes |
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totally-defined:
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possibly non-reducible on same data term |