Output Problem, Very simple program

I am new to programming in C and I am learning from "The C Programming Language", I am trying to write a program that will count input lines words, and characters, I've checked multiple times and I'm fairly certain this is the exact code in the book, but i am not getting any output from it, any suggestions?

Code:

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#include <stdio.h>
#include <stdlib.h>
#define IN 1
#define OUT 0

 main()
{
int c, nl, nw, nc, state;

state = OUT;

nw = nc = nl = 0;

while((c = getchar()) != EOF){
    ++nc;
    if (c == 'n')
    ++nl;
    if(c == ' '|| c == '\n' || c == '\t')
    state = OUT;
    else if(state == OUT){
        state == IN;
        ++nw;
    }
}
printf("%d %d %d\n", nw, nl, nc);

}

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line 16 is an error. it should be \n not n (checking for newlines).
line 21 also. it should be = not == (assignment operator, not equality test operator).

you should be getting some kind of output. what is your input?

Thank you for the help, but im still not getting anything, I have been typing "this is a test" and after hitting enter im not getting any sort of result

If you're entering data from the terminal then you need to tell windows it's the end of your input by entering a ctrl-z at the beginning of a line. But more normally, that code is meant to be run with file redirection:

Code:

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count < testfile.txt

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Quote:

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Originally Posted by MrAlt

Thank you for the help, but im still not getting anything, I have been typing "this is a test" and after hitting enter im not getting any sort of result

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How are you entering EOF?

I think Linux uses this
CONTROL-D
or
I think Windows uses this
CONTROL-Z

Note: I always had to press enter after doing the EOF.

Tim S.

Don't all modern compilers warn when you don't specify what type a function returns? (it should be int main, not just main)

On line 21, you have an extra = sign, and that might be causing some of the issue.

Also, your if statements are messed up, what's the point of setting the state and then re-evaluating the state?

CTRL - Z was the answer, thank you all very much!