CurryInfo: base-3.4.0 / Data.List.isPrefixOf
definition: 
|
isPrefixOf :: Eq a => [a] -> [a] -> Bool isPrefixOf [] _ = True isPrefixOf (_:_) [] = False isPrefixOf (x:xs) (y:ys) = x==y && (isPrefixOf xs ys) |
|
demand:
|
argument 2 |
|
deterministic:
|
deterministic operation |
|
documentation:
|
Checks whether a list is a prefix of another. @param xs - a list @param ys - a list @return `True` if `xs` is a prefix of `ys` |
|
failfree:
|
(_, _, _) |
|
indeterministic:
|
referentially transparent operation |
|
infix:
|
no fixity defined |
|
iotype:
|
{(_,{[]},_) |-> {True} || (_,{:},{[]}) |-> {False} || (_,{:},{:}) |-> _}
|
|
name:
|
isPrefixOf |
|
precedence:
|
no precedence defined |
|
result-values:
|
_ |
|
signature:
|
Prelude.Eq a => [a] -> [a] -> Prelude.Bool |
|
solution-complete:
|
operation might suspend on free variables |
|
terminating:
|
yes |
|
totally-defined:
|
reducible on all ground data terms |