What I am guessing is that the stdin used by scanf is not getting
flushed after entering a char as a result of which it is running into
infinite loop. If you use fflush(stdin) just after scanf it will not
be infinite loop. But I am not able to get the reason for it.
On Sep 13, 3:23 pm, Avinash Dharan <avinashdha...@gmail.com> wrote:
> #include <stdio.h>
> void main()
> {
> while(1)
> {
> int opt;
> scanf("%d",&opt);
> printf("%d\n",opt);
> }
>
> }
>
> when i execute this program, if i give a character instead of an integer, it
> goes into an infinite loop. why is it so?
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