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Diffstat (limited to 'gnu/packages/haskell-xyz.scm')
| -rw-r--r-- | gnu/packages/haskell-xyz.scm | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/gnu/packages/haskell-xyz.scm b/gnu/packages/haskell-xyz.scm index f1e3081f92..e00883a7f2 100644 --- a/gnu/packages/haskell-xyz.scm +++ b/gnu/packages/haskell-xyz.scm @@ -9418,6 +9418,39 @@ splitting lists into parts, akin to the @code{split} function found in several mainstream languages.") (license license:bsd-3))) +(define-public ghc-splitmix-bootstrap + (package + (name "ghc-splitmix-bootstrap") + (version "0.0.3") + (source + (origin + (method url-fetch) + (uri (string-append "https://hackage.haskell.org/package/" + "splitmix/splitmix-" version ".tar.gz")) + (sha256 + (base32 + "1k0amgkz7rvyz3lnw7m786ilnr1cibwhx9sc4qynq329gxan5r7w")))) + (properties '((hidden? #t))) + (build-system haskell-build-system) + (arguments `(#:tests? #f)) + (inputs + `(("ghc-random" ,ghc-random))) + (home-page "http://hackage.haskell.org/package/splitmix") + (synopsis "Fast and splittable pseudorandom number generator") + (description "This package provides a Pure Haskell implementation of the +SplitMix pseudorandom number generator. SplitMix is a \"splittable\" +pseudorandom number generator that is quite fast: 9 64-bit +arithmetic/logical operations per 64 bits generated. SplitMix is tested +with two standard statistical test suites (DieHarder and TestU01, this +implementation only using the former) and it appears to be adequate for +\"everyday\" use, such as Monte Carlo algorithms and randomized data +structures where speed is important. In particular, it @strong{should not +be used for cryptographic or security applications}, because generated +sequences of pseudorandom values are too predictable (the mixing functions +are easily inverted, and two successive outputs suffice to reconstruct the +internal state).") + (license license:bsd-3))) + (define-public ghc-statevar (package (name "ghc-statevar") |