I modified your program as below.
Every time, value of ret = 0.
scanf is repeatedly failing cos there is some junk in the input stream
Hence it prints junk values
#include <stdio.h>
void main()
{
while(1)
{
int opt, ret;
ret=scanf("%d",&opt);
printf("opt is %d\n",opt);
printf("ret is %d\n",ret);
}
}
Regards,
Raghu
On Tue, Sep 13, 2011 at 3:23 AM, Avinash Dharan <[email protected]>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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