C*: New Language Extension Aims to Merge C Programming with Formal Verification

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Researchers have proposed C*, a language extension designed to unify programming and formal verification within the C language ecosystem. The project seeks to address the longstanding gap between writing C code and formally proving its correctness. By integrating verification constructs directly into the language, C* aims to make formal methods more accessible to systems programmers. The work was published as a research paper on arXiv in April 2025. Early community discussion on Hacker News has been limited, reflecting the niche but technically significant nature of the proposal.

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