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#include<stdio.h>
int fun();
int i;
int main()
{
while(i)
{
fun();
main();
}
printf("hello \n");
return 0;
}
int fun()
{
printf("hi");
}
answer is hello.how??wat is tat while(i) mean?
- 7 Answers
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Answer / vignesh1988i
see first of all variable 'i' is declared as a global
storage class variable .. so according to that storage class
whenever we define an variable i before the main function
and explicatily we haven't initilized that variable means it
will defaultly variable i will have 0....
so when this while is compiled i has 0 which makes the loop
false.. so it will compile the very first statement after
that loop... so it prints hello...........
thank u
| Is This Answer Correct ? | 18 Yes | 0 No |
Answer / who cares
I am not an expert but you can try one thing that I did.
Remove the while loop and put the follow
if (i)
printf ( "hi\n" );
The result is that printf statement never gets any print
out! My guess would be because the value of 'i' is NOT
defined so, that while loop doesn't get assess at all! So,
the result is only "hello"
| Is This Answer Correct ? | 5 Yes | 2 No |
Answer / parul_kul
As "int i" is not defined/declared inside any function, by
default it is declared as external variable not as auto.
Thats why, it takes the 0 as its default value.
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / agita
in response to the previous answer...
there is no storage class specification for i..so by default
it
is auto..if an auto variable is not initiallized it would
give a garbage value..then how come while(0)....?
| Is This Answer Correct ? | 1 Yes | 1 No |
Answer / sudhir kumar sharma
if we try this program in case of above program we will come
to a conclusion that all the variable declared before main
are global and assigned a value by default to zero that's
why the while loop will not executed in the above program :)
#include<stdio.h>
#include<conio.h>
int a;
float b;
double c;
char d;
static int e;
int main()
{
clrscr();
printf("%d\n %f\n %d\n %c\n %d\n",a,b,c,d,e);
getch();
return 0;
| Is This Answer Correct ? | 0 Yes | 0 No |
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