C | String | Question 14

Assume that a character takes 1 byte. Output of following program?

#include<stdio.h> 
int main() 
{ 
    char str[20] = "GeeksQuiz"; 
    printf ("%d", sizeof(str)); 
    return 0; 
} 

(A) 9
(B) 10
(C) 20
(D) Garbage Value

Answer: (C)

Explanation: Note that the sizeof() operator would return size of array. To get size of string stored in array, we need to use strlen(). The following program prints 9.

#include <stdio.h>
#include <string.h>
int main()
{
    char str[20] = "GeeksQuiz";
    printf ("%d", strlen(str));
    return 0;
}

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