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A one-number triage tool for C code (and a cheap feedback loop for LLM output)

Community description: C gets hard to trust in three predictable ways: deep nesting, pointers to pointers, and a->b->c...

Dev.to | Sep 20, 2026 | Jens Harms

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pointers, and a->b->c chains where nobody null-checks the middle pointer. deref chain — a->b->c runs, i. e. null-derefs where the middle pointer came from somewhere else It's one file, zero dependencies, no parser worth mentioning. Spearman(Score, Churn) = 0. 52 (libXt), 0. 38 (libtiff) better than raw line count (0. 50 / 0. 33) and cyclomatic complexity (0. 41 / 0. 32) OpenMotif. Which is exactly why a cheap pointer LLM-generated C has the same tell.

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