Question

Which among the given options is the right explanation for the statement size_t strcspn(c, s)?

(a) return length of prefix of s consisting of characters not in c

(b) return length of prefix of s consisting of characters present in c

(c) return length of prefix of c consisting of characters not in s

(d) return length of prefix of c consisting of characters present in s

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This interesting question is from String Operations topic in section String Operations in C of C

Answer 1

Correct choice is (c) return length of prefix of c consisting of characters not in s

To explain: The function size_t strcspn(c, s)  is used to return length of prefix of c consisting of characters not in s.