2 * $XConsortium: slist.cc /main/4 1996/07/18 14:30:12 drk $
4 * Copyright (c) 1993 HAL Computer Systems International, Ltd.
5 * All rights reserved. Unpublished -- rights reserved under
6 * the Copyright Laws of the United States. USE OF A COPYRIGHT
7 * NOTICE IS PRECAUTIONARY ONLY AND DOES NOT IMPLY PUBLICATION
10 * THIS SOFTWARE CONTAINS CONFIDENTIAL INFORMATION AND TRADE
11 * SECRETS OF HAL COMPUTER SYSTEMS INTERNATIONAL, LTD. USE,
12 * DISCLOSURE, OR REPRODUCTION IS PROHIBITED WITHOUT THE
13 * PRIOR EXPRESS WRITTEN PERMISSION OF HAL COMPUTER SYSTEMS
16 * RESTRICTED RIGHTS LEGEND
17 * Use, duplication, or disclosure by the Government is subject
18 * to the restrictions as set forth in subparagraph (c)(l)(ii)
19 * of the Rights in Technical Data and Computer Software clause
20 * at DFARS 252.227-7013.
22 * HAL COMPUTER SYSTEMS INTERNATIONAL, LTD.
29 #include "dstr/slist.h"
30 #include "utility/funcs.h"
32 slist::slist(slist_cell* x) : v_ct(0), v_head(0), v_tail(0)
41 slist_cell* x = v_head;
50 void slist::append(slist* tail_list)
52 if ( tail_list == 0 ) return;
55 v_tail -> v_succ = tail_list -> v_head;
58 v_head = tail_list -> v_head;
60 v_tail = tail_list -> v_tail;
61 v_ct += tail_list -> v_ct;
63 tail_list -> v_head = tail_list -> v_tail = 0;
64 tail_list -> v_ct = 0;
67 void slist::insert_as_tail(slist_cell* x)
79 void slist::delete_head()
84 v_head = v_head -> v_succ;
100 void slist::next(long& index)
102 if ( index == long(v_tail) )
105 index = long( ((slist_cell*)(index)) -> v_succ );
108 slist* slist::concate_with(slist* first_list ...)
111 va_start (ap, first_list);
113 this -> append(first_list);
116 slist* p = va_arg(ap, slist*);