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// (C) Copyright Jeremy Siek 2004 // Distributed under the Boost Software License, Version 1.0. (See // accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) #ifndef BOOST_QUEUE_HPP #define BOOST_QUEUE_HPP #include <deque> #include <algorithm> namespace boost { template <class _Tp, class _Sequence = std::deque<_Tp> > class queue; template <class _Tp, class _Seq> inline bool operator==(const queue<_Tp, _Seq>&, const queue<_Tp, _Seq>&); template <class _Tp, class _Seq> inline bool operator<(const queue<_Tp, _Seq>&, const queue<_Tp, _Seq>&); template <class _Tp, class _Sequence> class queue { #ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS template <class _Tp1, class _Seq1> friend bool operator== (const queue<_Tp1, _Seq1>&, const queue<_Tp1, _Seq1>&); template <class _Tp1, class _Seq1> friend bool operator< (const queue<_Tp1, _Seq1>&, const queue<_Tp1, _Seq1>&); #endif 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; #ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS protected: #endif _Sequence c; public: queue() : c() {} explicit queue(const _Sequence& __c) : c(__c) {} bool empty() const { return c.empty(); } size_type size() const { return c.size(); } reference front() { return c.front(); } const_reference front() const { return c.front(); } reference top() { return c.front(); } const_reference top() const { return c.front(); } reference back() { return c.back(); } const_reference back() const { return c.back(); } void push(const value_type& __x) { c.push_back(__x); } void pop() { c.pop_front(); } void swap(queue& other) { using std::swap; swap(c, other.c); } }; template <class _Tp, class _Sequence> bool operator==(const queue<_Tp, _Sequence>& __x, const queue<_Tp, _Sequence>& __y) { return __x.c == __y.c; } template <class _Tp, class _Sequence> bool operator<(const queue<_Tp, _Sequence>& __x, const queue<_Tp, _Sequence>& __y) { return __x.c < __y.c; } template <class _Tp, class _Sequence> bool operator!=(const queue<_Tp, _Sequence>& __x, const queue<_Tp, _Sequence>& __y) { return !(__x == __y); } template <class _Tp, class _Sequence> bool operator>(const queue<_Tp, _Sequence>& __x, const queue<_Tp, _Sequence>& __y) { return __y < __x; } template <class _Tp, class _Sequence> bool operator<=(const queue<_Tp, _Sequence>& __x, const queue<_Tp, _Sequence>& __y) { return !(__y < __x); } template <class _Tp, class _Sequence> bool operator>=(const queue<_Tp, _Sequence>& __x, const queue<_Tp, _Sequence>& __y) { return !(__x < __y); } template <class _Tp, class _Sequence> inline void swap(queue<_Tp, _Sequence>& __x, queue<_Tp, _Sequence>& __y) { __x.swap(__y); } } /* namespace boost */ #endif /* BOOST_QUEUE_HPP */