A variant of Cuckoo Filter whose size automatically scales as necessary.
Basic usage:
```rust use scalablecuckoofilter::ScalableCuckooFilter;
let mut filter = ScalableCuckooFilter::new(100, 0.001); assert!(!filter.contains("foo")); filter.insert("foo"); assert!(filter.contains("foo")); ```
Filter grows automatically:
```rust use scalablecuckoofilter::ScalableCuckooFilter;
let mut filter = ScalableCuckooFilter::new(100, 0.001); assert_eq!(filter.capacity(), 128);
for i in 0..1000 { filter.insert(&i); } assert_eq!(filter.capacity(), 1923); ```
Filter shrinking:
```rust use scalablecuckoofilter::ScalableCuckooFilter;
let mut filter = ScalableCuckooFilter::new(1000, 0.001); for i in 0..100 { filter.insert(&i); } asserteq!(filter.capacity(), 1024); asserteq!(filter.bits(), 14336);
filter.shrinktofit(); for i in 0..100 { assert!(filter.contains(&i)); } asserteq!(filter.capacity(), 128); asserteq!(filter.bits(), 1792); ```