> For the complete documentation index, see [llms.txt](https://osl.mistium.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://osl.mistium.com/standard-library/utilities.md).

# Utilities and data structures

Packages for data structures and utility types.

* [box2d](broken://pages/BDmKrusmA3RbP3aoPxOb) - Box2D-compatible rigid-body worlds, bodies, and fixtures.
* [map](broken://pages/fFdeZ86hUnuvD5t7FFh9) - An ordered key-value map type.
* [set](broken://pages/SPancST3eXLBnGshhpaN) - A set type.
* [option](broken://pages/5dGdZDBYLwmRqPjB7Tag) - Optional values (`some`/`none`).
* [result](broken://pages/HFboZ6GNIKnIHu9fAhwR) - Success/error result values.
* [retry](broken://pages/R7AoWBss6kIQKNyOEUrK) - Bounded retries with exponential backoff and jitter.
* [ptr](broken://pages/gJpHJflBoy9QPKdoijH7) - Low-level pointer operations.