haskell-src-exts-1.24.0: tests/examples/BangPatterns.hs.prettyprinter.golden

{-# LANGUAGE BangPatterns #-}
module BangPatterns where

firstnonspace :: Ptr Word8 -> Int -> Int -> IO Int
firstnonspace !ptr !n !m
  | n >= m = return n
  | otherwise =
    do w <- peekElemOff ptr n
       if isSpaceWord8 w then firstnonspace ptr (n + 1) m else return n