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Tail-call optimization in C is relatively recent (2025)

The article discusses how tail-call optimization (TCO) support in C compilers is a relatively recent development, with mainstream adoption emerging around 2025. It explores the historical context of why TCO was long absent from C and the implications for functional programming on the platform.

Background

Tail-call optimization is a compiler technique that reuses the current stack frame for recursive calls, preventing stack overflow. While common in languages like Scheme and Haskell, C has historically lacked reliable TCO support despite its relevance to performance-critical and functional-style programming.

Source
Hacker News (RSS)
Published
Aug 10, 2026 at 07:34 PM
Score
5.0 / 10