CurryInfo: base-3.4.0 / Control.Search.SetFunctions.select
definition: 
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select :: Values a -> (a, Values a) #ifdef __KICS2__ select (Values (x:xs)) = (x, Values xs) |
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demand:
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argument 1 |
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deterministic:
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deterministic operation |
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documentation:
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Selects (indeterministically) some value in a multiset of values and returns the selected value and the remaining multiset of values. Thus, `select` has always at most one value, i.e., it is a deterministic operation. It fails if the value set is empty. **NOTE:** The usage of this operation is only safe (i.e., does not destroy completeness) if all values in the argument set are identical. |
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failfree:
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<FAILING> |
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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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{({Values}) |-> {(,)}}
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name:
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select |
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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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Values a -> (a, Values 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 |