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| main :: IO () | |
| main = do | |
| starman "covfefe" 10 | |
| putStrLn "Program now shuts down" | |
| --starman super game | |
| starman :: String -> Int -> IO () | |
| starman word n = turn word ['-' | x <- word] n |
Delimited continuations manipulate the control flow of programs. Similar to control structures like conditionals or loops they allow to deviate from a sequential flow of control.
We use exception handling as another example for control flow manipulation and later show how to implement it using delimited continuations. Finally, we show that nondeterminism can also be expressed using delimited continuations.
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A function is a mapping from one set, called a domain, to another set, called the codomain. A function associates every element in the domain with exactly one element in the codomain. In Scala, both domain and codomain are types.
val square : Int => Int = x => x * x