GCC Nested Functions Explored Using Wide Pointers Without Trampolines

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A technical article published on July 14, 2026, examines an advanced use case of GCC's nested functions feature. The piece focuses on implementing nested functions using wide pointers while avoiding the use of trampolines, which are typically required for such functionality. Trampolines are small executable code stubs that GCC normally generates on the stack to handle nested function calls. The author explores an alternative approach that sidesteps this mechanism, which has implications for security and portability in C programming.

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