// This may look like C code, but it is really -*- C++ -*- /* Copyright (C) 1988 Free Software Foundation written by Doug Lea (dl@rocky.oswego.edu) This file is part of GNU CC. GNU CC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY. No author or distributor accepts responsibility to anyone for the consequences of using it or for whether it serves any particular purpose or works at all, unless he says so in writing. Refer to the GNU CC General Public License for full details. Everyone is granted permission to copy, modify and redistribute GNU CC, but only under the conditions described in the GNU CC General Public License. A copy of this license is supposed to have been given to you along with GNU CC so you can know your rights and responsibilities. It should be in a file named COPYING. Among other things, the copyright notice and this notice must be preserved on all copies. */ #ifndef _VStack_h #ifdef __GNUG__ #pragma once #pragma interface #endif #define _VStack_h 1 #include ".Stack.h" class VStack : public Stack { protected: int size; int ptr; * s; public: VStack(int sz = DEFAULT_INITIAL_CAPACITY); VStack(VStack&); ~VStack(); void operator = (VStack&); void push( item); pop(); & top(); void del_top(); int length(); int empty(); int full(); void clear(); void resize(int sz); int capacity(); int OK(); }; #if defined(__OPTIMIZE__) || defined(USE_LIBGXX_INLINES) inline VStack::VStack(int sz) { s = new [size = sz]; ptr = 0; } inline VStack::~VStack() { delete [size] s; } inline void VStack::clear() { ptr = 0; } inline int VStack::capacity() { return size; } inline int VStack::empty() { return ptr == 0; } inline int VStack::full() { return ptr == size; } inline int VStack::length() { return ptr; } inline void VStack::push( item) { if (full()) error("push to full stack."); s[ptr++] = item; } inline VStack::pop() { if (empty()) error("pop from empty stack."); return s[--ptr]; } inline void VStack::del_top() { if (empty()) error("del_top from empty stack."); --ptr; } inline & VStack::top() { if (empty()) error("top from empty stack."); return s[ptr-1]; } #endif #endif