EOF in C

[thyagaraj315]

What is the value of EOF in C?
i've written C program to read keypad values if it is not equal to EOF..
But the program is not terminating even if i enter ESC key... only thing i can break the program by pressing ctrl+break...

please tell me which key is for EOF in Turbo C

[ashitpro]

EOF is interpreted as End Of File.
It's value is -1. It is defined in stdlib.h and stdio.h
It is used in file operations. When file descriptor reaches at the end of file, this value gets assigned to it.

[mschenkelberg]

On the terminal EOF is interpreted as Ctrl-d

[JosAH]

EOF is interpreted as End Of File.
It's value is -1. It is defined in stdlib.h and stdio.h
It is used in file operations. When file descriptor reaches at the end of file, this value gets assigned to it.

Don't be so sure about that -1; this is what the Standard has to say about it:

EOF

which expands to an integer constant expression, with type
int and a negative value, that is returned by several
functions to indicate end-of-file, that is, no more input
from a stream;

kind regards,

Jos

[JosAH]

On the terminal EOF is interpreted as Ctrl-d

On Unix terminals that is; it is completely implementation event what type of event
causes an end-of-file condition on the stream. btw, it's the other way around on
Unix machines: ctrl-d is interpreted as an end-of-file condition.

kind regards,

Jos

[Ganon11]

I believe in Windows it is ctrl+z, though I could be wrong.