stl_queue.h
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- /*
- *
- * 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.
- *
- *
- * Copyright (c) 1996,1997
- * Silicon Graphics Computer Systems, Inc.
- *
- * 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. Silicon Graphics makes no
- * representations about the suitability of this software for any
- * purpose. It is provided "as is" without express or implied warranty.
- */
- /* NOTE: This is an internal header file, included by other STL headers.
- * You should not attempt to use it directly.
- */
- #ifndef __SGI_STL_INTERNAL_QUEUE_H
- #define __SGI_STL_INTERNAL_QUEUE_H
- __STL_BEGIN_NAMESPACE
- #ifndef __STL_LIMITED_DEFAULT_TEMPLATES
- template <class _T, class _Sequence = deque<_T> >
- #else
- template <class _T, class _Sequence>
- #endif
- class queue {
- friend bool operator== __STL_NULL_TMPL_ARGS (const queue&, const queue&);
- friend bool operator< __STL_NULL_TMPL_ARGS (const queue&, const queue&);
- public:
- typedef typename _Sequence::value_type value_type;
- typedef typename _Sequence::size_type size_type;
- typedef _Sequence container_type;
- typedef typename _Sequence::reference reference;
- typedef typename _Sequence::const_reference const_reference;
- protected:
- _Sequence _M_c;
- public:
- queue() : _M_c() {}
- explicit queue(const _Sequence& __c) : _M_c(__c) {}
- bool empty() const { return _M_c.empty(); }
- size_type size() const { return _M_c.size(); }
- reference front() { return _M_c.front(); }
- const_reference front() const { return _M_c.front(); }
- reference back() { return _M_c.back(); }
- const_reference back() const { return _M_c.back(); }
- void push(const value_type& __x) { _M_c.push_back(__x); }
- void pop() { _M_c.pop_front(); }
- };
- template <class _T, class _Sequence>
- bool
- operator==(const queue<_T, _Sequence>& __x, const queue<_T, _Sequence>& __y)
- {
- return __x._M_c == __y._M_c;
- }
- template <class _T, class _Sequence>
- bool
- operator<(const queue<_T, _Sequence>& __x, const queue<_T, _Sequence>& __y)
- {
- return __x._M_c < __y._M_c;
- }
- #ifdef __STL_FUNCTION_TMPL_PARTIAL_ORDER
- template <class _T, class _Sequence>
- bool
- operator!=(const queue<_T, _Sequence>& __x, const queue<_T, _Sequence>& __y)
- {
- return !(__x == __y);
- }
- template <class _T, class _Sequence>
- bool
- operator>(const queue<_T, _Sequence>& __x, const queue<_T, _Sequence>& __y)
- {
- return __y < __x;
- }
- template <class _T, class _Sequence>
- bool
- operator<=(const queue<_T, _Sequence>& __x, const queue<_T, _Sequence>& __y)
- {
- return !(__y < __x);
- }
- template <class _T, class _Sequence>
- bool
- operator>=(const queue<_T, _Sequence>& __x, const queue<_T, _Sequence>& __y)
- {
- return !(__x < __y);
- }
- #endif /* __STL_FUNCTION_TMPL_PARTIAL_ORDER */
- #ifndef __STL_LIMITED_DEFAULT_TEMPLATES
- template <class _T, class _Sequence = vector<_T>,
- class _Compare = less<typename _Sequence::value_type> >
- #else
- template <class _T, class _Sequence, class _Compare>
- #endif
- class priority_queue {
- public:
- typedef typename _Sequence::value_type value_type;
- typedef typename _Sequence::size_type size_type;
- typedef _Sequence container_type;
- typedef typename _Sequence::reference reference;
- typedef typename _Sequence::const_reference const_reference;
- protected:
- _Sequence _M_c;
- _Compare _M_comp;
- public:
- priority_queue() : _M_c() {}
- explicit priority_queue(const _Compare& __x) : _M_c(), _M_comp(__x) {}
- priority_queue(const _Compare& __x, const _Sequence& __s)
- : _M_c(__s), _M_comp(__x)
- { make_heap(_M_c.begin(), _M_c.end(), _M_comp); }
- #ifdef __STL_MEMBER_TEMPLATES
- template <class _InputIterator>
- priority_queue(_InputIterator __first, _InputIterator __last)
- : _M_c(__first, __last) { make_heap(_M_c.begin(), _M_c.end(), _M_comp); }
- template <class _InputIterator>
- priority_queue(_InputIterator __first,
- _InputIterator __last, const _Compare& __x)
- : _M_c(__first, __last), _M_comp(__x)
- { make_heap(_M_c.begin(), _M_c.end(), _M_comp); }
- template <class _InputIterator>
- priority_queue(_InputIterator __first, _InputIterator __last,
- const _Compare& __x, const _Sequence& __s)
- : _M_c(__s), _M_comp(__x)
- {
- _M_c.insert(_M_c.end(), __first, __last);
- make_heap(_M_c.begin(), _M_c.end(), _M_comp);
- }
- #else /* __STL_MEMBER_TEMPLATES */
- priority_queue(const value_type* __first, const value_type* __last)
- : _M_c(__first, __last) { make_heap(_M_c.begin(), _M_c.end(), _M_comp); }
- priority_queue(const value_type* __first, const value_type* __last,
- const _Compare& __x)
- : _M_c(__first, __last), _M_comp(__x)
- { make_heap(_M_c.begin(), _M_c.end(), _M_comp); }
- priority_queue(const value_type* __first, const value_type* __last,
- const _Compare& __x, const _Sequence& __c)
- : _M_c(__c), _M_comp(__x)
- {
- _M_c.insert(_M_c.end(), __first, __last);
- make_heap(_M_c.begin(), _M_c.end(), _M_comp);
- }
- #endif /* __STL_MEMBER_TEMPLATES */
- bool empty() const { return _M_c.empty(); }
- size_type size() const { return _M_c.size(); }
- const_reference top() const { return _M_c.front(); }
- void push(const value_type& __x) {
- __STL_TRY {
- _M_c.push_back(__x);
- push_heap(_M_c.begin(), _M_c.end(), _M_comp);
- }
- __STL_UNWIND(_M_c.clear());
- }
- void pop() {
- __STL_TRY {
- pop_heap(_M_c.begin(), _M_c.end(), _M_comp);
- _M_c.pop_back();
- }
- __STL_UNWIND(_M_c.clear());
- }
- };
- // no equality is provided
- __STL_END_NAMESPACE
- #endif /* __SGI_STL_INTERNAL_QUEUE_H */
- // Local Variables:
- // mode:C++
- // End: