2 * CDE - Common Desktop Environment
4 * Copyright (c) 1993-2012, The Open Group. All rights reserved.
6 * These libraries and programs are free software; you can
7 * redistribute them and/or modify them under the terms of the GNU
8 * Lesser General Public License as published by the Free Software
9 * Foundation; either version 2 of the License, or (at your option)
12 * These libraries and programs are distributed in the hope that
13 * they will be useful, but WITHOUT ANY WARRANTY; without even the
14 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU Lesser General Public License for more
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with these librararies and programs; if not, write
20 * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
21 * Floor, Boston, MA 02110-1301 USA
23 /* $XConsortium: CC_Stack.h /main/4 1996/10/08 19:23:19 cde-hal $ */
27 #include "Exceptions.hh"
30 template <class T> class Stack: public Destructable
34 /* This is a value stack, ie an assignment operator for T is assumed */
37 Items = new CC_TValSlist<T>();
48 CC_Link<T> *last_elem = (CC_Link<T> *)Items->removeLast();
54 T *ret = last_elem->f_element;
63 void push (const T newItem)
65 Items->append ( newItem );
70 CC_Link<T> *last_elem = (CC_Link<T> *)Items->last();
75 return ( *last_elem->f_element );
80 return( Items->entries() ); //ie no. of elements in the stack
84 return( Items->entries() == 0 );
88 CC_TValSlist<T> *Items;