77 lines
2.5 KiB
C++
77 lines
2.5 KiB
C++
/*
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*
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* Copyright (c) 1994
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* Hewlett-Packard Company
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Hewlett-Packard Company makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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*
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* Copyright (c) 1996,1997
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* Silicon Graphics Computer Systems, Inc.
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Silicon Graphics makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*/
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/* NOTE: This is an internal header file, included by other STL headers.
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* You should not attempt to use it directly.
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*/
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#ifndef __SGI_STL_INTERNAL_STACK_H
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#define __SGI_STL_INTERNAL_STACK_H
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__STL_BEGIN_NAMESPACE
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#ifndef __STL_LIMITED_DEFAULT_TEMPLATES
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template <class T, class Sequence = deque<T> >
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#else
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template <class T, class Sequence>
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#endif
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class stack {
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friend bool operator== __STL_NULL_TMPL_ARGS (const stack&, const stack&);
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friend bool operator< __STL_NULL_TMPL_ARGS (const stack&, const stack&);
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public:
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typedef typename Sequence::value_type value_type;
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typedef typename Sequence::size_type size_type;
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typedef typename Sequence::reference reference;
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typedef typename Sequence::const_reference const_reference;
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protected:
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Sequence c;
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public:
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bool empty() const { return c.empty(); }
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size_type size() const { return c.size(); }
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reference top() { return c.back(); }
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const_reference top() const { return c.back(); }
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void push(const value_type& x) { c.push_back(x); }
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void pop() { c.pop_back(); }
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};
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template <class T, class Sequence>
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bool operator==(const stack<T, Sequence>& x, const stack<T, Sequence>& y) {
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return x.c == y.c;
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}
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template <class T, class Sequence>
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bool operator<(const stack<T, Sequence>& x, const stack<T, Sequence>& y) {
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return x.c < y.c;
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}
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__STL_END_NAMESPACE
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#endif /* __SGI_STL_INTERNAL_STACK_H */
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// Local Variables:
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// mode:C++
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// End:
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