| definition: |
lookupFM :: Eq key => FM key elt -> key -> Maybe elt lookupFM (FM le fm) key = lookupFM' le fm key |
| demand: |
argument 2 |
| deterministic: |
deterministic operation |
| documentation: |
--- Retrieves element bound to given key |
| failfree: |
(_, _, _) |
| indeterministic: |
referentially transparent operation |
| infix: |
no fixity defined |
| iotype: |
{(_,{FM},_) |-> {Just,Nothing}}
|
| name: |
lookupFM |
| precedence: |
no precedence defined |
| result-values: |
{Just,Nothing}
|
| signature: |
Prelude.Eq a => FM a b -> a -> Prelude.Maybe b |
| solution-complete: |
operation might suspend on free variables |
| terminating: |
yes |
| totally-defined: |
reducible on all ground data terms |