Componentpedia / Listings / ordered-multimap

Last update: 25/04/2026

ordered-multimap

An ordered multimap.

Latest version: 0.7.4 registry icon
Maintenance score
0
Safety score
0
Popularity score
72
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Security
  Vulnerabilities
Version Suggest Low Medium High Critical
0.7.4 0 0 0 0 0
0.7.3 0 0 0 0 0
0.7.2 0 0 0 0 0
0.7.1 0 0 0 0 0
0.7.0 0 0 0 0 0
0.6.0 0 0 0 0 0
0.5.0 0 0 0 0 0
0.4.3 0 0 0 0 0
0.4.2 0 0 0 0 0
0.4.1 0 0 0 0 0
0.4.0 0 0 0 0 0
0.3.1 0 0 0 0 0
0.3.0 0 0 0 0 0
0.2.4 0 0 0 0 0
0.2.3 0 0 0 0 0
0.2.2 0 0 0 0 0
0.2.1 0 0 0 0 0
0.2.0 0 0 0 0 0
0.1.0 0 0 0 0 0

Stability
Latest release:

0.7.4 - This version may not be safe as it has not been updated for a long time. Find out if your coding project uses this component and get notified of any reported security vulnerabilities with Meterian-X Open Source Security Platform

Licensing

Maintain your licence declarations and avoid unwanted licences to protect your IP the way you intended.

MIT   -   MIT License

Not a wildcard

Not proprietary

OSI Compliant

ordered-multimap-rs

Crates.io Docs.rs CI

Currently, this crate contains a single type ListOrderedMultimap. This is a multimap meaning that multiple values can be associated with a given key, but it also maintains insertion order across all keys and values.

Documentation

Performance

Basic benchmarks show that the performance of this crate is on par with that of the multimap crate which does not maintain insertion order.

Features

  • std (default) enables usage of the standard library. Disabling this features allows this crate to be used in no_std environments.
  • serde for (de)serialization.

TODO

It is planned that a corresponding SetOrderedMultimap will also be included in this crate which will provide the same insertion order guarantees, but the set of values associated to a given key will be an actual set instead of a list.

License

Licensed under MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT).

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you shall be licensed as above, without any additional terms or conditions.

See CONTRIBUTING.md.