Discussion
Placing a table of function pointers in const memory is worthwhile because it
Answer: A
Correct answer: puts the table in flash and protects it from a stray write
Marking the table const lets the linker place it in flash, saving scarce RAM, and a wild pointer writing to it then faults or is simply ignored rather than corrupting the dispatch. The calls through it are no faster; the gains are memory and robustness.
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