CODEWITHSUNDEEP
haskelliofunctional-programmingmonads
Tshimanga
Tshimanga

Reputation: 885

an appendFile function for non-string inputs

I want to write a file consisting of a list of tuples, but appendFile demands string inputs. I imagine I could just show or quote the tuples to stringify them and read them later; however, I'd like to just be able to save the list of n-tuples to skip the "show now and read later" part. Is there a Show a=>FilePath -> a -> IO () version of the appendFile function?

Upvotes: 1

Views: 135

Answers (1)

Zeta
Zeta

Reputation: 105925

A quick hoogle search reveals that there isn't a function with type Show a => FilePath -> a -> IO (). However, it's not really hard to write it yourself:

showAppendFile :: Show a => FilePath -> a -> IO ()
showAppendFile p x = appendFile p (show x)

Upvotes: 2

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