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As far as I can tell, Haskell does box everything: http://www.haskell.org/ghc/docs/7.0.1/html/users_guide/primitives.html http://www.haskell.org/ghc/docs/7.0.1/

• dbaupp 13y ago
  Haskell boxes (almost) everything always, so there's no additional boxing from the generics.