Why my C program never reach EOF

Asked Dec 12 '14 at 20:54

Active Dec 12 '14 at 20:54

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I am learning C with "The C programming Language" book and in one of the examples i have this code:

#include <stdio.h>

main()
{
    long nc;
    nc = 0;

    while (getchar() != EOF)
        ++nc;
    printf("%1d\n", nc);
}

But this program never reach EOF and i don't know why

asked Dec 12 '14 at 20:54

rut ray

3

1. I think `main` wants to have a return type. 2. think you want to use `%ld` as placeholder – Rizier123 Dec 12 '14 at 20:57
More generally, sometimes standard input just never ends. (User input never signals EOF, file is `/dev/zero` or `/dev/urandom`) – ComputerDruid Dec 12 '14 at 20:58
It's usually better to look at the current keystroke or character input than EOF from stdin. – gmlacrosse Dec 12 '14 at 20:58
2

Did you actually send it an EOF character when running it interactively? On Unix/Linux and MacOS/X that would be `CTRL-D` and on Windows and DOS `CTRL-Z` ... – Hartmut Holzgraefe Dec 12 '14 at 21:11
you could just replace EOF with '\n' if you want – Marty Miller Feb 03 '19 at 21:58

0 Answers0