C | Operators | Question 27

Predict the output of following C program

#include <stdio.h> 
int main() 
{ 
    int i = 0; 
    do
    { 
        printf("GeeqsQuiz "); 
        i = i++; 
    } 
    while (i < 5); 
    return 0; 
} 

(A) GeeqsQuiz GeeqsQuiz GeeqsQuiz GeeqsQuiz GeeqsQuiz
(B) Infinite time GeeksQuiz
(C) Undefined Behavior

Answer: (C)

Explanation: The below statement causes undefined behavior.

 i = i++;

See https://www.geeksforgeeks.org/sequence-points-in-c-set-1/ for details.

Quiz of this Question

My Personal Notes

Recommended Posts: