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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 */
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