Q:

Why won't fflush(stdin) work? 

Possible Duplicate:
Using fflush(stdin) 

My code is: 
scanf("%d", &_choice);
fflush(stdin);
gets(input);

I use fflush(stdin); to remove the '\n' character that was left after scanf. 
However, I found out that it doesn't work, and gets automatically takes the '\n' char and continues. 
I solved it by using getchar() instead of fflush but I still can't figure out why didn't fflush work...
Edit: I understand now fflush is for output streams only.  
But is there a command for "cleaning" stdin from junk? 

A:

Because fflush is for output streams. 
And at any rate, fflush is not for "removing \n characters"...

