Crate dualhashkey 

An implementation of a 64-bit DualHashKey.

For use with hierarchical ordered collections, to quickly find subkeys and permit range queries.

Modules

const_fnv1a_hash

Re-export of the fnv1a hasher crate.
Used to construct the DualHashKey from &str and &[u8] inputs.

nohash_hasher

Re-export of the no-hash hasher crate.
Used to mark the DualHashKey as nohash_hasher::IsEnabled.

Structs

DualHashKey

A 64-bit key made of two hashes, whose raw value is never zero.

Constants

HIGH_MASK

A mask for the high-half of a DualHashKey.

HIGH_SHIFT

The offset of the high-half in a DualHashKey.

LOW_MASK

A mask for the low-half of a DualHashKey.

MAX

The highest possible DualHashKey.

MIN

The lowest possible DualHashKey.

Functions

fnv1a_hash_32_empty_is_zero

A wrapper around const_fnv1a_hash::fnv1a_hash_32 that returns 0 for empty slices, instead of 811C9DC5.

fnv1a_hash_str_32_empty_is_zero

A wrapper around const_fnv1a_hash::fnv1a_hash_str_32 that returns 0 for empty strings, instead of 811C9DC5.