medium10 pts · first answer countsembedded-cpreprocessor

Checking a struct size at build time

A struct must exactly match a 16-byte flash record. How can the build fail if someone adds a field?

A._Static_assert(sizeof(struct rec) == 16, "rec size");B.assert(sizeof(struct rec) == 16); in mainC.#if sizeof(struct rec) != 16 / #error / #endifD.volatile struct rec r = { 16 };

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Checking a struct size at build time

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