C | Misc | Question 5 - GeeksforGeeks

Assume that the size of an integer is 4 bytes. Predict the output?

#include <stdio.h> 
int fun() 
{ 
    puts(" Hello "); 
    return 10; 
} 
  
int main() 
{ 
    printf("%d", sizeof(fun())); 
    return 0; 
} 

(A) 4
(B) Hello 4
(C) 4 Hello
(D) Compiler Error

Answer: (A)

Explanation: sizeof() is an operator, not a function. It looks like a function though.

The operands of operators need not to be evaluated. That is why fun() is not called.

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