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📜 WAYPOINT LESSON

Checkpoint: Function Pointers

⭐⭐ intermediate⏳ 22 min read📍 Lesson 100 of 225

Prove you can build a register/emit framework where behavior is data.

What you just proved

  • Function-pointer types read and written fluently (typedef discipline).
  • Overflow-proof comparators meeting the qsort contract.
  • Table dispatch and the void *ctx closure pattern.
  • A framework where handlers are registered, invoked, removed, and broadcast — the architecture inside every GUI toolkit, embedded firmware table, and plugin system.

Next module: structures that model data — and the encapsulation tricks C offers without objects.