CurryInfo: base-3.4.0 / Data.IORef.modifyIORef
definition: 
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modifyIORef :: IORef a -> (a -> a) -> IO () modifyIORef ref f = readIORef ref >>= writeIORef ref . f |
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demand:
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no demanded arguments |
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deterministic:
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deterministic operation |
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documentation:
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Modify the value of an IORef. |
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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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modifyIORef |
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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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IORef a -> (a -> a) -> Prelude.IO () |
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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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reducible on all ground data terms |