/* * File: sign2.c * ---------------- * Reads in a number and classifies it according to its sign. * modified by Jeff Tian from signtest.c (textbook Fig. 4-3, p.115) */ #include #include "genlib.h" #include "simpio.h" main() { int n; printf("Program to classify a number by its sign.\n"); printf("n = ? "); n = GetInteger(); if (n > 0) { printf("That number is positive.\n"); } else { printf("That number is not positive.\n"); } }