244 lines
7.4 KiB
C++
244 lines
7.4 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_QUEUE_H
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#define __SGI_STL_INTERNAL_QUEUE_H
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#include <sequence_concepts.h>
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__STL_BEGIN_NAMESPACE
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// Forward declarations of operators < and ==, needed for friend declaration.
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template <class _Tp,
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class _Sequence __STL_DEPENDENT_DEFAULT_TMPL(deque<_Tp>) >
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class queue;
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template <class _Tp, class _Seq>
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inline bool operator==(const queue<_Tp, _Seq>&, const queue<_Tp, _Seq>&);
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template <class _Tp, class _Seq>
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inline bool operator<(const queue<_Tp, _Seq>&, const queue<_Tp, _Seq>&);
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template <class _Tp, class _Sequence>
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class queue {
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// requirements:
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__STL_CLASS_REQUIRES(_Tp, _Assignable);
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__STL_CLASS_REQUIRES(_Sequence, _FrontInsertionSequence);
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__STL_CLASS_REQUIRES(_Sequence, _BackInsertionSequence);
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typedef typename _Sequence::value_type _Sequence_value_type;
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__STL_CLASS_REQUIRES_SAME_TYPE(_Tp, _Sequence_value_type);
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#ifdef __STL_MEMBER_TEMPLATES
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template <class _Tp1, class _Seq1>
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friend bool operator== (const queue<_Tp1, _Seq1>&,
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const queue<_Tp1, _Seq1>&);
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template <class _Tp1, class _Seq1>
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friend bool operator< (const queue<_Tp1, _Seq1>&,
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const queue<_Tp1, _Seq1>&);
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#else /* __STL_MEMBER_TEMPLATES */
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friend bool __STD_QUALIFIER
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operator== __STL_NULL_TMPL_ARGS (const queue&, const queue&);
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friend bool __STD_QUALIFIER
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operator< __STL_NULL_TMPL_ARGS (const queue&, const queue&);
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#endif /* __STL_MEMBER_TEMPLATES */
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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 _Sequence container_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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queue() : c() {}
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explicit queue(const _Sequence& __c) : c(__c) {}
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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 front() { return c.front(); }
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const_reference front() const { return c.front(); }
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reference back() { return c.back(); }
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const_reference back() 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_front(); }
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};
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template <class _Tp, class _Sequence>
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bool
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operator==(const queue<_Tp, _Sequence>& __x, const queue<_Tp, _Sequence>& __y)
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{
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return __x.c == __y.c;
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}
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template <class _Tp, class _Sequence>
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bool
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operator<(const queue<_Tp, _Sequence>& __x, const queue<_Tp, _Sequence>& __y)
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{
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return __x.c < __y.c;
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}
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#ifdef __STL_FUNCTION_TMPL_PARTIAL_ORDER
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template <class _Tp, class _Sequence>
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bool
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operator!=(const queue<_Tp, _Sequence>& __x, const queue<_Tp, _Sequence>& __y)
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{
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return !(__x == __y);
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}
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template <class _Tp, class _Sequence>
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bool
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operator>(const queue<_Tp, _Sequence>& __x, const queue<_Tp, _Sequence>& __y)
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{
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return __y < __x;
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}
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template <class _Tp, class _Sequence>
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bool
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operator<=(const queue<_Tp, _Sequence>& __x, const queue<_Tp, _Sequence>& __y)
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{
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return !(__y < __x);
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}
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template <class _Tp, class _Sequence>
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bool
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operator>=(const queue<_Tp, _Sequence>& __x, const queue<_Tp, _Sequence>& __y)
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{
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return !(__x < __y);
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}
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#endif /* __STL_FUNCTION_TMPL_PARTIAL_ORDER */
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template <class _Tp,
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class _Sequence __STL_DEPENDENT_DEFAULT_TMPL(vector<_Tp>),
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class _Compare
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__STL_DEPENDENT_DEFAULT_TMPL(less<typename _Sequence::value_type>) >
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class priority_queue {
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// requirements:
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__STL_CLASS_REQUIRES(_Tp, _Assignable);
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__STL_CLASS_REQUIRES(_Sequence, _Sequence);
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__STL_CLASS_REQUIRES(_Sequence, _RandomAccessContainer);
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typedef typename _Sequence::value_type _Sequence_value_type;
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__STL_CLASS_REQUIRES_SAME_TYPE(_Tp, _Sequence_value_type);
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__STL_CLASS_BINARY_FUNCTION_CHECK(_Compare, bool, _Tp, _Tp);
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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 _Sequence container_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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_Compare comp;
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public:
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priority_queue() : c() {}
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explicit priority_queue(const _Compare& __x) : c(), comp(__x) {}
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priority_queue(const _Compare& __x, const _Sequence& __s)
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: c(__s), comp(__x)
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{ make_heap(c.begin(), c.end(), comp); }
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#ifdef __STL_MEMBER_TEMPLATES
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template <class _InputIterator>
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priority_queue(_InputIterator __first, _InputIterator __last)
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: c(__first, __last) { make_heap(c.begin(), c.end(), comp); }
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template <class _InputIterator>
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priority_queue(_InputIterator __first,
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_InputIterator __last, const _Compare& __x)
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: c(__first, __last), comp(__x)
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{ make_heap(c.begin(), c.end(), comp); }
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template <class _InputIterator>
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priority_queue(_InputIterator __first, _InputIterator __last,
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const _Compare& __x, const _Sequence& __s)
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: c(__s), comp(__x)
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{
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c.insert(c.end(), __first, __last);
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make_heap(c.begin(), c.end(), comp);
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}
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#else /* __STL_MEMBER_TEMPLATES */
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priority_queue(const value_type* __first, const value_type* __last)
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: c(__first, __last) { make_heap(c.begin(), c.end(), comp); }
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priority_queue(const value_type* __first, const value_type* __last,
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const _Compare& __x)
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: c(__first, __last), comp(__x)
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{ make_heap(c.begin(), c.end(), comp); }
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priority_queue(const value_type* __first, const value_type* __last,
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const _Compare& __x, const _Sequence& __c)
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: c(__c), comp(__x)
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{
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c.insert(c.end(), __first, __last);
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make_heap(c.begin(), c.end(), comp);
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}
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#endif /* __STL_MEMBER_TEMPLATES */
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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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const_reference top() const { return c.front(); }
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void push(const value_type& __x) {
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__STL_TRY {
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c.push_back(__x);
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push_heap(c.begin(), c.end(), comp);
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}
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__STL_UNWIND(c.clear());
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}
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void pop() {
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__STL_TRY {
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pop_heap(c.begin(), c.end(), comp);
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c.pop_back();
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}
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__STL_UNWIND(c.clear());
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}
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};
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// no equality is provided
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__STL_END_NAMESPACE
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#endif /* __SGI_STL_INTERNAL_QUEUE_H */
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// Local Variables:
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// mode:C++
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// End:
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