Why can't I find the value of EOF in C?

Question

I\'m reading the book \"The C Programming Language\" and there is an exercise that asked to verify that the expression getchar() != EOF is returning 1 or 0. Now

Answer 1

Because if c is EOF, the while loop terminates (or won't even start, if it is already EOF on the first character typed). The condition for running another iteration of the loop is that c is NOT EOF.