# odht

**Repository Path**: mirrors_rust-lang/odht

## Basic Information

- **Project Name**: odht
- **Description**: An on-disk hash table implementation
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: main
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-07-08
- **Last Updated**: 2026-03-29

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

![CI Status](https://github.com/rust-lang/odht/actions/workflows/ci.yml/badge.svg)

# odht

A Rust crate for hash tables that can be mapped from disk into memory without the need for up-front decoding.
The goal of the implementation is to provide a data structure that

- can be used exactly in the format it is stored on disk,
- provides roughly the same performance as a `HashMap` from Rust's standard library,
- has a completely deterministic binary representation,
- is platform and endianess independent, so that data serialized on one system can be used on any other system, and
- is independent of alignment requirements so that
  - its use is not restricted to certain classes of CPUs, and
  - the data structure can be mapped to arbitrary memory addresses.

This crate is developed and maintained by the Rust compiler team for internal use within `rustc`.
This crate will have regular breaking changes and provides no stability guarantees.