I need to write a state monad that can also support error handling. I was thinking of using the Either monad for this purpose because it can also provide details about what caused the error. I found a
We\'re working on a model filesystem that uses a state monad internally.We have a type class with operations like these:
The state monad \"interface\" class MonadState s m where get :: m s put :: s -> m () (+ return and bind) allows to construc开发者_运维知识库t any possible computation with State monad without us
usual wxHaskell program looks like main = do run gui gui = do .... .... gui must have type IO a, run has type IO a -> IO (), also there is some initialization routines in run.
I am attempting to create a stack of monad transformers and am having trouble getting the correct type signatures for my functions. (I\'m still pretty new to Haskell)
I\'m trying to grasp the State Monad and with this purpose I wanted to write a monadic code that would generate a sequence of random numbers using a Linear Congruential Generator (probably not good, b
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