[Haskell-cafe] runST $ unsafeIOToST $ ioWhatever

[Henning Thielemann]

On Sun, 14 Apr 2024, Folsk Pratima wrote:

> strError :: Int -> String
> strError errnum = runST $ unsafeIOToST ioString

Instead of (runST $ unsafeIOToST ioString) you could just call 
(unsafePerformIO ioString).

However, ioString must not have observable side effects. throwIO does not 
look right and should be 'error'.