32 stable releases (14 major)

15.1.0 Apr 29, 2022
15.0.0 May 15, 2020
14.3.0 Mar 3, 2020
14.1.0 Dec 16, 2019
1.0.0 Apr 17, 2017

#75 in Data structures

Download history 222283/week @ 2026-04-13 248545/week @ 2026-04-20 236910/week @ 2026-04-27 278601/week @ 2026-05-04 410918/week @ 2026-05-11 374440/week @ 2026-05-18 349070/week @ 2026-05-25 368068/week @ 2026-06-01 364379/week @ 2026-06-08 347045/week @ 2026-06-15 332926/week @ 2026-06-22 291620/week @ 2026-06-29 344014/week @ 2026-07-06 362349/week @ 2026-07-13 411047/week @ 2026-07-20 417871/week @ 2026-07-27

1,554,482 downloads per month
Used in 2,537 crates (223 directly)

MPL-2.0+

525KB
12K SLoC

im-rs

Crate Status

Blazing fast immutable collection datatypes for Rust.

Comes in two versions: im (thread safe) and im-rc (fast but not thread safe).

Documentation

Licence

Copyright 2017 Bodil Stokke

This software is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.

Code of Conduct

Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.

Dependencies

~0.7–1.8MB
~41K SLoC