152 typedef struct variable   struct
156   struct variable *next;  argument
157 }variable;  typedef
159 variable dummy = { NULL, 0L, NULL };
160 variable *vars=&dummy;
162 variable *lookup_var(char *name);
163 variable *add_var(char *name, ULONG value);
336   variable *v;  in assignment_expr()
385   variable *v;  in do_assignment_operator()
765   variable *v;  in factor()
836   variable *v;  in get_value()
973 variable *
976   variable *v;  in lookup_var()
986 variable *
989   variable *v;  in add_var()
1001   v = (variable *)malloc(sizeof(variable));  in add_var()
1024   variable *v;  in set_var()
1043   variable *v;  in get_var()