Can I ignore getting end-of-file in C?

Question

I am trying to make a program that asks a user for input. I already know how to terminate the program after getting EOF.

if(feof(stdin)) exit(1);

Or,

while(!feof(stdin)) { ... }

By ignoring I mean that the program does nothing after catching EOF. Like signal handling:

signal(SIGTERM, no_op_function);

Note that [`while (!feof(file))` is always wrong!](https://stackoverflow.com/q/5431941/15168) — Jonathan Leffler, Apr 09 '21 at 04:38
You may need to use `clearerr(stdin)` to continue after getting EOF. — Jonathan Leffler, Apr 09 '21 at 04:38
You should also note that there's a difference between ignoring a signal (`signal(SIGTERM, SIG_IGN)`) and setting a function that does nothing to handle the signal. — Jonathan Leffler, Apr 09 '21 at 04:41
If you want to continue after `EOF`, then do so. You don't need to `exit()`. However, if `stdin` returns `EOF`, there will be no more to read. — the busybee, Apr 09 '21 at 06:30

score 1 · Answer 1 · answered Apr 09 '21 at 11:39

1

Ok, here's what worked for me:

clearerr(stdin);

Thanks to @JonathanLeffler for the answer.

answered Apr 09 '21 at 11:39

meaj-gnu-linux

1 Answers1