April 2012 - Libraries

mtl for transformers-0.3
by Henning Thielemann 08 Apr '12

08 Apr '12

Some packages that I use import mtl, but latest mtl requires transformers-0.2. It seems that simply the constraint must be relaxed. Btw. can the maintainers of mtl and transformers please specify the repositories for these packages in the Cabal description?

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ANNOUNCE: hecc-0.3
by Marcel Fourné 06 Apr '12

06 Apr '12

Hi again, this is the third release of hecc, the Elliptic Curve Cryptography Library for Haskell, to be found at http://hackage.haskell.org/package/hecc (or simply by "cabal install hecc") The changes since hecc-0.2 have been numerous, from simple fixes of a standard curve definition (NIST p521), to addition of the sometimes requested NIST p384, to addition of a wholly new F(2^e)-backend (only prime curves can get boring). Also: small stuff I can't remember that well. The new F(2^e)-backend is broken for some functions, has hackish datastructures and horrible performance, but should give an outlook into some parallelism achievable once it is fixed. It was also the basis for further work, which will eventually land here. REMEMBER: This is very much ALPHA-stadium work, please test it yourself and don't do bad stuff to me if things fail or change in the future due to my fixing the worst parts. ;-) I haven't forgotten the crypto-api, but my life has been turbulent and my thesis took quite some time (plus: randomness extractors and other stuff needed), so please bear with me or send further patches like the good ones that came in already. A happy long weekend to you (dance if it suits you), Marcel -- Marcel Fourné OpenPGP-Key-ID: 4991 8AA4 202F 12AC 41F7 6C77 CA83 BDF0 7454 5C72 A good library is preferable to a tool, except when you just need that one tool.

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Proposal: add clearEnv and setEnvironment to System.Posix.Env
by Paolo Capriotti 04 Apr '12

04 Apr '12

Hi all, System.Posix.Env doesn't currently define a binding for the POSIX function clearenv. I propose to add: clearEnv :: IO () setEnvironment :: [(String, String)] -> IO () 'clearEnv' is a direct wrapper for the underlying function, while 'setEnvironment' is a higher-level utility function which mirrors the interface of the existing 'getEnvironment'. See attached patches here: http://hackage.haskell.org/trac/ghc/ticket/5648. Discussion deadline: 24 Mar 2012. BR, Paolo

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