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// stack standard header #pragma once #ifndef _STACK_ #define _STACK_ #include <deque>
#pragma pack(push,8) #pragma warning(push,3) _STD_BEGIN
// TEMPLATE CLASS stack template<class _Ty, class _Container = deque<_Ty> > class stack { // LIFO queue implemented with a container public: typedef _Container container_type; typedef typename _Container::value_type value_type; typedef typename _Container::size_type size_type;
stack() : c() { // construct with empty container }
explicit stack(const _Container& _Cont) : c(_Cont) { // construct by copying specified container }
bool empty() const { // test if stack is empty return (c.empty()); }
size_type size() const { // test length of stack return (c.size()); }
value_type& top() { // return last element of mutable stack return (c.back()); }
const value_type& top() const { // return last element of nonmutable stack return (c.back()); }
void push(const value_type& _Val) { // insert element at end c.push_back(_Val); }
void pop() { // erase last element c.pop_back(); }
bool _Eq(const stack<_Ty, _Container>& _Right) const { // test for stack equality return (c == _Right.c); }
bool _Lt(const stack<_Ty, _Container>& _Right) const { // test if this < _Right for stacks return (c < _Right.c); }
protected: _Container c; // the underlying container };
// stack TEMPLATE FUNCTIONS template<class _Ty, class _Container> inline bool operator==(const stack<_Ty, _Container>& _Left, const stack<_Ty, _Container>& _Right) { // test for stack equality return (_Left._Eq(_Right)); }
template<class _Ty, class _Container> inline bool operator!=(const stack<_Ty, _Container>& _Left, const stack<_Ty, _Container>& _Right) { // test for stack inequality return (!(_Left == _Right)); }
template<class _Ty, class _Container> inline bool operator<(const stack<_Ty, _Container>& _Left, const stack<_Ty, _Container>& _Right) { // test if _Left < _Right for stacks return (_Left._Lt(_Right)); }
template<class _Ty, class _Container> inline bool operator>(const stack<_Ty, _Container>& _Left, const stack<_Ty, _Container>& _Right) { // test if _Left > _Right for stacks return (_Right < _Left); }
template<class _Ty, class _Container> inline bool operator<=(const stack<_Ty, _Container>& _Left, const stack<_Ty, _Container>& _Right) { // test if _Left <= _Right for stacks return (!(_Right < _Left)); }
template<class _Ty, class _Container> inline bool operator>=(const stack<_Ty, _Container>& _Left, const stack<_Ty, _Container>& _Right) { // test if _Left >= _Right for stacks return (!(_Left < _Right)); } _STD_END #pragma warning(pop) #pragma pack(pop)
#endif /* _STACK_ */
/* * Copyright (c) 1992-2001 by P.J. Plauger. ALL RIGHTS RESERVED. * Consult your license regarding permissions and restrictions. */
/* * This file is derived from software bearing the following * restrictions: * * Copyright (c) 1994 * Hewlett-Packard Company * * Permission to use, copy, modify, distribute and sell this * software and its documentation for any purpose is hereby * granted without fee, provided that the above copyright notice * appear in all copies and that both that copyright notice and * this permission notice appear in supporting documentation. * Hewlett-Packard Company makes no representations about the * suitability of this software for any purpose. It is provided * "as is" without express or implied warranty. V3.10:0009 */
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