| definition: |
modifyIORef :: IORef a -> (a -> a) -> IO () modifyIORef ref f = readIORef ref >>= writeIORef ref . f |
| demand: |
no demanded arguments |
| deterministic: |
deterministic operation |
| documentation: |
--- Modify the value of an IORef. |
| failfree: |
(_, _) |
| indeterministic: |
referentially transparent operation |
| infix: |
no fixity defined |
| iotype: |
{(_,_) |-> _}
|
| name: |
modifyIORef |
| precedence: |
no precedence defined |
| result-values: |
_ |
| signature: |
IORef a -> (a -> a) -> Prelude.IO () |
| solution-complete: |
operation might suspend on free variables |
| terminating: |
yes |
| totally-defined: |
reducible on all ground data terms |