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- // 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 the GNU C++ Library. This library is free
- software; you can redistribute it and/or modify it under the terms of
- the GNU Library General Public License as published by the Free
- Software Foundation; either version 2 of the License, or (at your
- option) any later version. This library is distributed in the hope
- that it will be useful, but WITHOUT ANY WARRANTY; without even the
- implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- PURPOSE. See the GNU Library General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free Software
- Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-
- #ifndef _<T>VStack_h
- #ifdef __GNUG__
- #pragma interface
- #endif
- #define _<T>VStack_h 1
-
- #include "<T>.Stack.h"
-
- class <T>VStack : public <T>Stack
- {
- protected:
- int size;
- int ptr;
- <T>* s;
-
- public:
-
- <T>VStack(int sz = DEFAULT_INITIAL_CAPACITY);
- <T>VStack(<T>VStack&);
- ~<T>VStack();
-
- void operator = (<T>VStack&);
- void push(<T&> item);
- <T> pop();
- <T>& top();
- void del_top();
-
- int length();
- int empty();
- int full();
- void clear();
-
- void resize(int sz);
- int capacity();
-
- int OK();
- };
-
-
- inline <T>VStack::<T>VStack(int sz)
- {
- s = new <T> [size = sz];
- ptr = 0;
- }
-
- inline <T>VStack::~<T>VStack()
- {
- delete [] s;
- }
-
- inline void <T>VStack::clear()
- {
- ptr = 0;
- }
-
- inline int <T>VStack::capacity()
- {
- return size;
- }
-
- inline int <T>VStack::empty()
- {
- return ptr == 0;
- }
-
- inline int <T>VStack::full()
- {
- return ptr == size;
- }
-
- inline int <T>VStack::length()
- {
- return ptr;
- }
-
- inline void <T>VStack::push(<T&> item)
- {
- if (full()) error("push to full stack.");
- s[ptr++] = item;
- }
-
- inline <T> <T>VStack::pop()
- {
- if (empty()) error("pop from empty stack.");
- return s[--ptr];
- }
-
-
- inline void <T>VStack::del_top()
- {
- if (empty()) error("del_top from empty stack.");
- --ptr;
- }
-
- inline <T>& <T>VStack::top()
- {
- if (empty()) error("top from empty stack.");
- return s[ptr-1];
- }
-
- #endif
-