uthash ☆

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Description:
C macros for hash tables and more

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: c macros hash-table header-only embedded data-structures

Install: brew install uthash

About:
Uthash is a collection of ANSI C macros that provide hash table functionality without requiring external libraries. It allows developers to add, find, and delete items from hash tables using simple macro calls directly within their C source code. This header-only approach eliminates build dependencies and simplifies distribution for embedded systems and cross-platform applications.

Key Features:

Header-only library with no dependencies
ANSI C compatible (C89/C90)
Simple macro-based API for easy integration
Memory-efficient with automatic cleanup

Use Cases:

Implementing fast key-value lookups in embedded C applications
Adding associative arrays to legacy codebases without external dependencies
Creating symbol tables or caches in performance-critical systems

Alternatives:

GLib – GLib provides GHashTable but requires linking against a large external library
klib – klib offers similar header-only data structures with a focus on performance

Version History

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