End of File

I'm sure you guys have had this question before... but how do you reach EOF in a statement such as...

while (getchar() != EOF)
do something;

I'm working on the exercises in K&R that want to Verify the expression getchar() != EOF is 0 or 1, and how to write a program to print the value of EOF. All the other books I've read started by teaching printf/scanf so this is a little different.

i haven't understood the question... but...

why while (getchar() != EOF)

and not while (c = getchar() != EOF)

you need something to get values from the file to(c)!!!

Hi!

There´s a ASCII-character called EOF, but I don´t know its number.

klausi

The value of EOF depends on your lib i think. Or is it machine-dependant? I can't remember. K&R says it some where.

Anyways, in Windows console just press Ctrl-Z. That'll be EOF and your while loop will terminate.

On my machine printf("%d", EOF); returns -1. Try it on yours and see.

adios,
biterman.

PS: I'm sure you'll find the definition for EOF in your stdio.h file.