| 1 | /*
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| 2 | *
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| 3 | * Copyright (c) 1994
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| 4 | * Hewlett-Packard Company
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| 5 | *
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| 6 | * Permission to use, copy, modify, distribute and sell this software
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| 7 | * and its documentation for any purpose is hereby granted without fee,
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| 8 | * provided that the above copyright notice appear in all copies and
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| 9 | * that both that copyright notice and this permission notice appear
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| 10 | * in supporting documentation. Hewlett-Packard Company makes no
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| 11 | * representations about the suitability of this software for any
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| 12 | * purpose. It is provided "as is" without express or implied warranty.
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| 13 | *
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| 14 | *
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| 15 | * Copyright (c) 1996,1997
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| 16 | * Silicon Graphics Computer Systems, Inc.
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| 17 | *
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| 18 | * Permission to use, copy, modify, distribute and sell this software
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| 19 | * and its documentation for any purpose is hereby granted without fee,
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| 20 | * provided that the above copyright notice appear in all copies and
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| 21 | * that both that copyright notice and this permission notice appear
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| 22 | * in supporting documentation. Silicon Graphics makes no
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| 23 | * representations about the suitability of this software for any
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| 24 | * purpose. It is provided "as is" without express or implied warranty.
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| 25 | */
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| 26 |
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| 27 | /* NOTE: This is an internal header file, included by other STL headers.
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| 28 | * You should not attempt to use it directly.
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| 29 | */
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| 30 |
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| 31 | #ifndef __SGI_STL_INTERNAL_STACK_H
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| 32 | #define __SGI_STL_INTERNAL_STACK_H
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| 33 |
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| 34 | __STL_BEGIN_NAMESPACE
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| 35 |
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| 36 | #ifndef __STL_LIMITED_DEFAULT_TEMPLATES
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| 37 | template <class T, class Sequence = deque<T> >
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| 38 | #else
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| 39 | template <class T, class Sequence>
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| 40 | #endif
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| 41 | class stack {
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| 42 | friend bool operator== __STL_NULL_TMPL_ARGS (const stack&, const stack&);
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| 43 | friend bool operator< __STL_NULL_TMPL_ARGS (const stack&, const stack&);
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| 44 | public:
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| 45 | typedef typename Sequence::value_type value_type;
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| 46 | typedef typename Sequence::size_type size_type;
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| 47 | typedef typename Sequence::reference reference;
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| 48 | typedef typename Sequence::const_reference const_reference;
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| 49 | protected:
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| 50 | Sequence c;
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| 51 | public:
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| 52 | bool empty() const { return c.empty(); }
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| 53 | size_type size() const { return c.size(); }
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| 54 | reference top() { return c.back(); }
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| 55 | const_reference top() const { return c.back(); }
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| 56 | void push(const value_type& x) { c.push_back(x); }
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| 57 | void pop() { c.pop_back(); }
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| 58 | };
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| 59 |
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| 60 | template <class T, class Sequence>
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| 61 | bool operator==(const stack<T, Sequence>& x, const stack<T, Sequence>& y) {
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| 62 | return x.c == y.c;
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| 63 | }
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| 64 |
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| 65 | template <class T, class Sequence>
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| 66 | bool operator<(const stack<T, Sequence>& x, const stack<T, Sequence>& y) {
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| 67 | return x.c < y.c;
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| 68 | }
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| 69 |
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| 70 | __STL_END_NAMESPACE
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| 71 |
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| 72 | #endif /* __SGI_STL_INTERNAL_STACK_H */
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| 73 |
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| 74 | // Local Variables:
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| 75 | // mode:C++
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| 76 | // End:
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