# cuckoo: Haskell Implementation of Cuckoo Filters

Haskell implementation of Cuckoo filters as described in

Cuckoo filters are a data structure for probabilistic set membership. They support insertion, deletion, and membership queries for set elements.

Membership queries may return false positive results. But queries don't return false negative results.

Unlike Bloom filters, Cuckoo filters maintain an upper bound on the false positive rate that is independent of the load of the filter. However, insertion of new elements in the filter can fail. For typical configurations this probability is very small for load factors smaller than 90 percent.

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## Flags

### Manual Flags

Name | Description | Default |
---|---|---|

mwc-random | Use mwc-random instead of the random package | Disabled |

pcg-random | Use pcg-random instead of the random package | Disabled |

Use -f <flag> to enable a flag, or -f -<flag> to disable that flag. More info

## Downloads

- cuckoo-0.3.1.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)

#### Maintainer's Corner

For package maintainers and hackage trustees

Candidates

Versions [RSS] | 0.1.0.0, 0.2.0.0, 0.2.0.1, 0.2.1, 0.2.2, 0.3.0, 0.3.1 |
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Change log | CHANGELOG.md |

Dependencies | base (>=4.11 && <5), bytestring (>=0.10), cuckoo, hashes (>=0.2), primitive (>=0.6.4.0), random (>=1.1) [details] |

License | BSD-3-Clause |

Copyright | Copyright (c) 2019-2021 Lars Kuhtz <lakuhtz@gmail.com> |

Author | Lars Kuhtz |

Maintainer | lakuhtz@gmail.com |

Category | Data |

Home page | https://github.com/larskuhtz/cuckoo |

Bug tracker | https://github.com/larskuhtz/cuckoo/issues |

Source repo | head: git clone https://github.com/larskuhtz/cuckoo.git |

Uploaded | by larsk at 2021-10-21T06:10:44Z |

Distributions | NixOS:0.3.1 |

Downloads | 1988 total (29 in the last 30 days) |

Rating | (no votes yet) [estimated by Bayesian average] |

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Status | Docs available [build log] Last success reported on 2021-10-21 [all 1 reports] |