GHC 5.00

April 2001GHC 5.00Mailing list: GHC 5.00 releasedRelease notes for GHC 5.00GHC 5.00 flag reference

Introduced GHCi.

This version of GHC implements the ideas presented in Derivable type classes. It introduces generic classes,Generic classes in GHC 5.00 enabled with the -fgenerics flag (which will correspond to the Generics language extension in GHC 6.6.

This version introduces the -fno-monomorphism-restriction flagGit commit introducing -fno-monomorphism-restriction to disable the monomorphism restriction. This flag has the same effect as the NoMonomorphismRestriction extension which will be introduced in GHC 6.6. Consequently the -fno-monomorphism-restriction flag will be deprecated along with the appearance of -X flags in GHC 6.8.1 in favor of -XNoMonomorphismRestriction.

Other new language features:

  • Parallel list comprehensions
  • Functional dependencies

The concept of packages,Packages in GHC 5.00 previously introduced in GHC 4.08, is expanded upon. This version introduces the ghc-pkg command-line tool for managing the installation of packages.

Join Type Classes for courses and projects to get you started and make you an expert in FP with Haskell.