C | Storage Classes and Type Qualifiers | Question 19

Output of following program?

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#include <stdio.h>
int main()
{
    static int i=5;
    if(--i){
        main();
        printf("%d ",i);
    }
}

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(A) 4 3 2 1
(B) 1 2 3 4
(C) 0 0 0 0
(D) Compiler Error


Answer: (C)

Explanation: A static variable is shared among all calls of a function. All calls to main() in the given program share the same i. i becomes 0 before the printf() statement in all calls to main().


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