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Which of the following is true of a static variable?

  • A.It retains its value between calls to the function.
  • B.It exists even after the function ends.
  • C.It can be modified in another function by sending it as a parameter.
  • D.All of the mentioned

Answer: C

Correct answer: All of the mentioned

All three are true of a static local variable. It keeps its value between calls, because it is initialised once and its storage lasts as long as the program; it therefore still exists after the function returns; and although its name is local, its address can be passed to another function, which may then modify it through the pointer.

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