GATE | GATE CS Mock 2018 | Question 55
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.
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Last Updated :
10 Jan, 2018
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