/* * Copyright (c) 1983 Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms are permitted * provided that the above copyright notice and this paragraph are * duplicated in all such forms and that any documentation, * advertising materials, and other materials related to such * distribution and use acknowledge that the software was developed * by the University of California, Berkeley. The name of the * University may not be used to endorse or promote products derived * from this software without specific prior written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. * * @(#)value.h 3.7 (Berkeley) 06/29/88 */ struct value { char v_type; union { int V_num; char *V_str; } v_un; }; #define v_num v_un.V_num #define v_str v_un.V_str #define V_NUM 1 #define V_STR 2 #define V_ERR 3 #define val_free(v) ((v).v_type == V_STR ? str_free((v).v_str) : 0)