Open In App

GATE | GATE CS Mock 2018 | Question 55

Like Article
Like
Save
Share
Report

Predict the output?




int fun(char *str1)
{
  char *str2 = str1;
  while(*++str1);
  return (str1-str2);
}
 
int main()
{
  char *str = \"GeeksQuiz\";
  printf(\"%d\", fun(str));
  return 0;
}


(A)

10
 

(B)

9
 

(C)

8
 

(D)

Random Number
 


Answer: (B)

Explanation:

The function fun() basically counts number of characters in input string. Inside fun(), pointer str2 is initialized as str1. The statement while(*++str1); increments str1 till ‘\\0’ is reached. str1 is incremented by 9. Finally the difference between str2 and str1 is returned which is 9. 

Option (B) is correct.
 


Quiz of this Question
Please comment below if you find anything wrong in the above post


Last Updated : 10 Jan, 2018
Like Article
Save Article
Previous
Next
Share your thoughts in the comments
Similar Reads