C code output ?

Hii
Can anyone please explain me the output of this code

int main()
{
int i=0;
while(+(+i--)!=0)
i -= i++;
printf("%d",i);
getchar();
return 0;
}
I found it at :-
Interview Question for Software Engineer/Developer (Fresher) about CPuzzles « GeeksforGeeks Posted in: #Coffee Room

-32768, I guess, because the loop will not run. Tell me if I am correct or not.

output : -1

in while loop i variable get -1 values then it is true
next statment balance the value as i = -1
then print -1 value.

@deepsari,
You are right its output is -1
Hey, Can you please explain in some steps...

output is -1

In the while loop, it becomes -1 then the changes do not affect it because the operations are -1 + 0.