nohash-hasher

library0.2.0rscratesunverified

An implementation of `std::hash::Hasher` which does not hash at all, useful for integer keys.

# Cargo.toml
[dependencies]
nohash-hasher = "0.2.0"

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INSTALL

IMPORT

SIG · NOHASH-HASHER

nohash-hasher

utilityrustv0.2.0

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

NoHashHasher

✓ use nohash_hasher::NoHashHasher;

Creates a HashSet using NoHashHasher for u64 keys.

use nohash_hasher::NoHashHasher; use std::hash::BuildHasherDefault; fn main() { let mut set: std::collections::HashSet<u64, BuildHasherDefault<NoHashHasher<u64>>> = Default::default(); set.insert(42); println!("Set size: {}", set.len()); }

Debug

Known issues

gotchaOnly safe for keys that are already well-distributed (e.g., integers from a hash function)

fix

Use only with keys that have no collisions; otherwise, performance degrades.

affects: >=0.2.0

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Version history

0.2.0latest on crates.io

Audit

Dependencies

No dependency data recorded yet.

Agent activity

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Resources

githubhttps://github.com/paritytech/nohash-hasher ↗

homepagehttps://github.com/paritytech/nohash-hasher ↗

docshttps://docs.rs/nohash-hasher/ ↗