Writing Ruby Bindings for C Libraries

Writing Ruby Bindings for C Libraries

March 4, 2026

Building Native Extensions with C (and Rust)

Ruby is known for its productivity and elegant syntax, but sometimes performance-critical tasks require lower-level languages.

Fortunately, Ruby provides a powerful mechanism called C extensions , allowing Ruby code to call native C functions directly. This approach enables Ruby developers to reuse existing high-performance libraries written in C.

Many well-known Ruby gems use this technique internally, including database drivers, cryptography libraries, and image processing tools.

In this article we’ll explore how Ruby bindings work , and build a simple native extension step by step.

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👉 Read the full article.

https://rubystacknews.com/2026/03/04/writing-ruby-bindings-for-c-libraries/

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