haskelline questions

• How to know whether a module requires RankNTypes or ExistentialTypes if it is not explicitly mentioned?
• Are new vectors created even if the old ones aren't used anymore?
• Small code snippet causes ghc to not terminate
• Processing a very large text file with lazy Texts and ByteStrings
• What's wrong with this implementation of quicksort using Arrows?
• Does Frege perform tail call optimization?
• Why does this simple use of the State monad cause a stack overflow?
• Understanding GHC assembly output

haskelline answers