stackop            16 binary.c       int stackop;
stackop            27 binary.c         stackop = 0;
stackop            28 binary.c         while (*polp != NULL && stackop == 0) {
stackop            50 binary.c         if (stackop != 0)
stackop            60 binary.c           stackop |= 0;
stackop            63 binary.c           stackop |= 1;
stackop            72 binary.c           stackop |= 0; 
stackop            76 binary.c           stackop |= 2;