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C | Operators | Question 27

  • Difficulty Level : Hard
  • Last Updated : 28 Jun, 2021

Predict the output of following C program

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#include <stdio.h>
int main()
    int i = 0;
        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 for details.

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