While loop asking for input until ctrl-d using C

Question

I want to make a while loop that is continually asking a user for input until the user ctrl-d\'s out of it. How can I do this correctly? I am using this ri

Answer 1

A ctrl-d will send an EOF (end of file) character, which translates in fgets as a NULL pointer :

while (fgets(user_input, 1000, stdin) != NULL) {
    // do stuff...
}
// no more user input