C Programming - Functions - Discussion

Discussion Forum : Functions - Point Out Correct Statements (Q.No. 1)

Functions

Which of the following statements are correct about the program?

#include<stdio.h>

int main()
{
    printf("%p\n", main());
    return 0;
}

It prints garbage values infinitely

Runs infinitely without printing anything

Error: main() cannot be called inside printf()

No Error and print nothing

Answer: Option

Explanation:

In printf("%p\n", main()); it calls the main() function and then it repeats infinetly, untill stack overflow.

Discussion:

15 comments Page 1 of 2.

Rupinderjit said: 1 decade ago

%p is used to print the address of some variable as used by the host computer.It can be Hex Binary BCD unsigned or any.

(1)

Ankur said: 1 decade ago

it generate error becouse main function can not call inside the main() function.

Lav said: 1 decade ago

What is %p ?

Varun said: 1 decade ago

Thank you. @Rupinderjit.

Dhiraj said: 1 decade ago

Why it does not print 0 infinite times ? When stack overflows main return 0 and that value get printed.

Krishanu said: 1 decade ago

Again I want to say that the actual output will be:

"Segmentation fault (core dumped)".

Lakshmi said: 1 decade ago

What is the meaning of "Segmentation fault"?

Cheeku said: 9 years ago

It will print the address of main.

Prashanth said: 9 years ago

Output : Segmentation fault (core dumped).

Asish panigrahi said: 9 years ago

%p has no value so that it prints infinite garbage value.

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