1*34681Sjak #ifndef lint 2*34681Sjak static char sccsid[] = "@(#)getnum.c 1.1 (Berkeley) 06/08/88"; 3*34681Sjak #endif not lint 4*34681Sjak 5*34681Sjak #include <stdio.h> 6*34681Sjak 7*34681Sjak getnum() 8*34681Sjak { 9*34681Sjak int c, n; 10*34681Sjak 11*34681Sjak n = 0; 12*34681Sjak while ((c=getchar()) >= '0' && c <= '9') 13*34681Sjak n = n*10 + c - '0'; 14*34681Sjak if (c == EOF) 15*34681Sjak return(-1); 16*34681Sjak return(n); 17*34681Sjak } 18