Practice · 2 of 2

Opaque-Handle Factory Contract

CHALLENGE

Difficulty: advanced+25 XP

Implement the extern "C"-style factory contract (linkage-free in this harness): wapiCreate/WapiDestroy manage an opaque handle, and the versioned WidgetApi table exposes only v1 calls. Destroy must be idempotent (destroying twice is a no-op, not a double free).

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