C Programming - Functions - Discussion
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Read more:"Everyone is wise until he speaks."
- (Proverb)
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| 21. |
What will be the output of the program?
#include<stdio.h>
#include<stdlib.h>
int main()
{
int i=0;
i++;
if(i<=5)
{
printf("IndiaBIX");
exit(1);
main();
}
return 0;
}
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| [A]. |
Prints "IndiaBIX" 5 times | | [B]. |
Function main() doesn't calls itself | | [C]. |
Infinite loop | | [D]. |
Prints "IndiaBIx" |
Answer: Option A
Explanation:
Step 1: int i=0; The variable i is declared as in integer type and initialized to '0'(zero).
Step 2: i++; Here variable i is increemented by 1. Hence i becomes '1'(one).
Step 3: if(i<=5) becomes if(1 <=5). Hence the if condition is satisfied and it enter into if block statements.
Step 4: printf("IndiaBIX"); It prints "IndiaBIX".
Step 5: exit(1); This exit statement terminates the program execution.
Hence the output is "IndiaBIx".
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Sneha said:
(Fri, Sep 2, 2011 10:46:25 PM)
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| What happens when it encounters main again in the program? It doesnt print back the same printf statement? |
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Ivo said:
(Sun, Jun 3, 2012 01:45:32 AM)
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"IndiaBIX" is not the same as "IndiaBIx".
@Sneha: It would call main recursively until the stack overflows |
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Leszek said:
(Sat, Jun 9, 2012 09:32:27 PM)
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| Isn't B also correct? Maybe main() COULD call itself, but in this case it doesn't because it never gets to that point. |
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Prerna said:
(Thu, Aug 9, 2012 12:34:56 AM)
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| What would be the answer if it would have been exit(0) instead of exit(1). |
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