Question

Which of the following is the correct syntax of the function strtoul()?

(a) unsigned long int strtoul(const char *n, char **ptr, int base)

(b) unsigned long int strtoul(const char *n, char **ptr)

(c) unsigned long int strtoul(const char *n)

(d) int strtoul(const char *n)

I had been asked this question during a job interview.

The query is from General Utilities topic in portion C Library of C

Answer 1

Right choice is (a) unsigned long int strtoul(const char *n, char **ptr, int base)

Explanation: usigned long int strtoul(conmt char *n, char **ptr, int base); The strtoul() function is used to convert the initial portion of the string pointed to by n to unsigned long int representation.