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The function strspn() is the complement of strcspn().

  • A.true
  • B.false

Answer: A

Correct answer: true

The two are complementary. strspn(s, set) counts the initial run of characters that are in the set; strcspn(s, set) counts the initial run of those that are not. Used together they let a string be walked field by field - skip the delimiters, then take the token.

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