For those interested in learning more about advanced C programming, there are many resources available online. Here are a few:

The search for is more than a query—it’s a statement of intent. You don’t want abstract theory; you want compilable, runnable, tweakable code. You want to see how a ring buffer avoids locks, how an intrusive linked list reduces allocations, and how setjmp / longjmp can implement cooperative multitasking.