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Functions whose names begin with “strn”

  • A.manipulates sequences of arbitrary characters
  • B.manipulates null-terminated sequences of characters
  • C.manipulates sequence of non - null characters.
  • D.returns a pointer to the token

Answer: C

Correct answer: manipulates sequence of non – null characters.

The strn functions take an explicit count and process at most that many characters, so they do not depend on a terminating null being present. That is what makes them the safer choice with a fixed-size buffer - though strncpy in particular does not add a null of its own if the source fills the whole n.

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