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Status](https://github.com/sile/scalable_cuckoo_filter/workflows/CI/badge.svg)](https://github.com/sile/scalable_cuckoo_filter/actions)\n[![License: MIT](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)\n\nA variant of [Cuckoo Filter][cuckoo filter] whose size automatically scales as necessary.\n\n[Documentation](https://docs.rs/scalable_cuckoo_filter)\n\nExamples\n--------\n\nBasic usage:\n\n```rust\nuse scalable_cuckoo_filter::ScalableCuckooFilter;\n\nlet mut filter = ScalableCuckooFilter::new(100, 0.001);\nassert!(!filter.contains(\"foo\"));\nfilter.insert(\"foo\");\nassert!(filter.contains(\"foo\"));\n```\n\nFilter grows automatically:\n\n```rust\nuse scalable_cuckoo_filter::ScalableCuckooFilter;\n\nlet mut filter = ScalableCuckooFilter::new(100, 0.001);\nassert_eq!(filter.capacity(), 128);\n\nfor i in 0..1000 {\n    filter.insert(\u0026i);\n}\nassert_eq!(filter.capacity(), 1923);\n```\n\nFilter shrinking:\n\n```rust\nuse scalable_cuckoo_filter::ScalableCuckooFilter;\n\nlet mut filter = ScalableCuckooFilter::new(1000, 0.001);\nfor i in 0..100 {\n    filter.insert(\u0026i);\n}\nassert_eq!(filter.capacity(), 1024);\nassert_eq!(filter.bits(), 14336);\n\nfilter.shrink_to_fit();\nfor i in 0..100 {\n    assert!(filter.contains(\u0026i));\n}\nassert_eq!(filter.capacity(), 128);\nassert_eq!(filter.bits(), 1792);\n```\n\nReferences\n----------\n\n- [Cuckoo Filter: Practically Better Than Bloom][cuckoo filter]\n- [Scalable Bloom Filters][scalable bloom filters]\n\n[cuckoo filter]: https://www.cs.cmu.edu/~dga/papers/cuckoo-conext2014.pdf\n[scalable bloom filters]: http://haslab.uminho.pt/cbm/files/dbloom.pdf\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsile%2Fscalable_cuckoo_filter","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fsile%2Fscalable_cuckoo_filter","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fsile%2Fscalable_cuckoo_filter/lists"}