Liangxu Linux
Nov 4, 2024 · Fundamentals
Unlocking GNU C Extensions: Zero‑Length Arrays, Variable‑Length Arrays, and More
This guide explains key GNU C extensions—including zero‑length and variable‑length arrays, case ranges, statement expressions, typeof, variadic macros, designated initializers, built‑in functions, and attribute syntax—showing how they differ from standard ANSI C and how to use them safely in Linux kernel development.
C extensionsGNU CLinux kernel
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