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| Name: ghc-random | Distribution: Fedora Project |
| Version: 1.2.1.1 | Vendor: Fedora Project |
| Release: 3.fc39 | Build date: Sun Jul 30 02:05:25 2023 |
| Group: Unspecified | Build host: buildvm-x86-23.iad2.fedoraproject.org |
| Size: 902832 | Source RPM: ghc-random-1.2.1.1-3.fc39.src.rpm |
| Packager: Fedora Project | |
| Url: https://hackage.haskell.org/package/random | |
| Summary: Pseudo-random number generation | |
This package provides basic pseudo-random number generation, including the ability to split random number generators. == "System.Random": pure pseudo-random number interface In pure code, use 'System.Random.uniform' and 'System.Random.uniformR' from "System.Random" to generate pseudo-random numbers with a pure pseudo-random number generator like 'System.Random.StdGen'. As an example, here is how you can simulate rolls of a six-sided die using 'System.Random.uniformR': >>> let roll = uniformR (1, 6) :: RandomGen g => g -> (Word, g) >>> let rolls = unfoldr (Just . roll) :: RandomGen g => g -> [Word] >>> let pureGen = mkStdGen 42 >>> take 10 (rolls pureGen) :: [Word] [1,1,3,2,4,5,3,4,6,2] See "System.Random" for more details. == "System.Random.Stateful": monadic pseudo-random number interface In monadic code, use 'System.Random.Stateful.uniformM' and 'System.Random.Stateful.uniformRM' from "System.Random.Stateful" to generate pseudo-random numbers with a monadic pseudo-random number generator, or using a monadic adapter. As an example, here is how you can simulate rolls of a six-sided die using 'System.Random.Stateful.uniformRM': >>> let rollM = uniformRM (1, 6) :: StatefulGen g m => g -> m Word >>> let pureGen = mkStdGen 42 >>> runStateGen_ pureGen (replicateM 10 . rollM) :: [Word] [1,1,3,2,4,5,3,4,6,2] The monadic adapter 'System.Random.Stateful.runStateGen_' is used here to lift the pure pseudo-random number generator 'pureGen' into the 'System.Random.Stateful.StatefulGen' context. The monadic interface can also be used with existing monadic pseudo-random number generators. In this example, we use the one provided in the <https://hackage.haskell.org/package/mwc-random mwc-random> package: >>> import System.Random.MWC as MWC >>> let rollM = uniformRM (1, 6) :: StatefulGen g m => g -> m Word >>> monadicGen <- MWC.create >>> replicateM 10 (rollM monadicGen) :: IO [Word] [2,3,6,6,4,4,3,1,5,4] See "System.Random.Stateful" for more details.
BSD-3-Clause
* Sat Jul 29 2023 Jens Petersen <[email protected]> - 1.2.1.1-3 - rebuild * Wed Jul 19 2023 Fedora Release Engineering <[email protected]> - 1.2.1.1-2 - Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild * Sun Jan 22 2023 Jens Petersen <[email protected]> - 1.2.1.1-5 - https://hackage.haskell.org/package/random-1.2.1.1/changelog - refresh to cabal-rpm-2.1.0 with SPDX migration * Thu Jul 21 2022 Fedora Release Engineering <[email protected]> - 1.2.0-4 - Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild * Fri Jun 17 2022 Jens Petersen <[email protected]> - 1.2.0-3 - rebuild * Thu Jan 20 2022 Fedora Release Engineering <[email protected]> - 1.2.0-2 - Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild * Thu Aug 05 2021 Jens Petersen <[email protected]> - 1.2.0-1 - update to 1.2.0 - splitmix now subpackage (moved from QuickCheck)
/usr/lib/.build-id /usr/lib/.build-id/45 /usr/lib/.build-id/45/97ec6bafd019e42e060af015281d80ba759535 /usr/lib64/ghc-9.4.5/lib/libHSrandom-1.2.1.1-I0wUgAAbf0g3qHR3e8uT0o-ghc9.4.5.so /usr/share/licenses/ghc-random /usr/share/licenses/ghc-random/LICENSE
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