What is a GCC plugin for struct inheritance?

It's a shared library hooked into GCC that recognizes a custom attribute, letting C structs embed parents smoothly, mimicking inheritance layout.

How do you build and use the embedstruct GCC plugin?

Grab plugin.c and Makefile, `make` the .so, then `gcc -fplugin=./embedstruct.so test.c -o test`. Attribute goes `[[gnu::embed_struct]]` on sub-structs.

Will GCC plugins like this break on updates?

Often—GCC internals shift. Test per version; dev checked compatibility in init.

Does this add real OOP to C?

Nah, just layout sugar. No methods, polys—composition with convenience.

📦 Open Source

One Developer's Gambit: GCC Plugin Injects Inheritance into C Structs

C's stubborn simplicity meets modern ambition: a GCC plugin that slips inheritance into structs. But does it bend the rules enough to matter?

theAIcatchup Apr 09, 2026 4 min read

Terminal output showing GCC plugin compiling C code with embed_struct attribute

⚡ Key Takeaways

GCC plugins extend C without forking the compiler, enabling struct embedding as 'inheritance'. 𝕏
Zero runtime cost, but GCC-only and fragile across versions. 𝕏
Niche win for embedded; hints at C evolution amid Rust pressure. 𝕏

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#C programming #C struct inheritance #GCC plugins #compiler extensions #compiler-hacks #embedded C #embedded programming #gcc-plugin #struct-inheritance

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Originally reported by dev.to

⚡ Key Takeaways

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