Your C Is Not Standard C: Compiler Extensions Quietly Diverge From the Spec

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A blog post titled "Your C is not standard C" argues that code many developers consider ordinary C often relies on compiler-specific extensions rather than the language standard. The article, published on sebsite.pw, has drawn attention on Hacker News, where it gathered 81 points and 45 comments. The piece encourages programmers to check whether their code would compile under strictly conforming settings. The discussion reflects ongoing debate about portability and the practical gap between C standards and real-world toolchains.

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