How to print integer literals in binary or hex in haskell?

Question

How to print integer literals in binary or hex in haskell?

printBinary 5 => \"0101\"

printHex 5 => \"05\"

Which libraries/functions allo

Answer 1

The Numeric module includes several functions for showing an Integral type at various bases, including showIntAtBase. Here are some examples of use:

import Numeric (showHex, showIntAtBase)
import Data.Char (intToDigit)

putStrLn $ showHex 12 "" -- prints "c"
putStrLn $ showIntAtBase 2 intToDigit 12 "" -- prints "1100"