I have the following code from Kernighan & Ritchie’s book:

#include <stdio.h>

int main() {
    int c, nl;
    nl = 0;
    while((c = getchar()) != EOF)
        if (c == 'n')
            ++nl;
    printf("%dn", nl);
return 0;
}

I understand how it works and what should it do in theory. What I don’t understand is, what’s happening in reality.

When I run the program (on windows) and write some text that consists of two lines for example, then I press ctrl z, the progrem completely closes itself. I don’t understand where or how should it show me the lines my text contained.

I would gladly appreciate some help or explanation.

Thank You in advance!

I expected the program to show me the number of lines in a text. In reality, it just closes itself.