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Do not let your type system reason about aliasing in your programming language

The Futhark programming language author discusses the complexity of handling aliasing in Futhark's type system, particularly around in-place array updates. A seemingly simple fix for an aliasing issue revealed deeper design challenges, leading the author to reconsider some of Futhark's oldest design choices.

Background

Futhark is a high-performance purely functional array programming language with a unique type system supporting in-place updates through consumption tracking. This blog post follows up on plans for version 1.0.

Source
Lobsters
Published
Sep 23, 2026 at 10:07 PM
Score
6.0 / 10