Discussion
What will be the output of the program ?
#include <stdio.h>
#include <string.h>
int main()
{
printf("%d\n", strlen("123456"));
return 0;
}
Answer: A
Correct answer: 6
strlen counts the characters before the terminating null. "123456" holds six digit characters - their being digits is irrelevant - so the answer is 6. sizeof on the same literal would give 7.
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