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// -*- C++ -*-
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//===--------------------------- queue ------------------------------------===//
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//
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//                     The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_QUEUE
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#define _LIBCPP_QUEUE
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/*
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    queue synopsis
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namespace std
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{
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template <class T, class Container = deque<T>>
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class queue
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{
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public:
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    typedef Container                                container_type;
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    typedef typename container_type::value_type      value_type;
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    typedef typename container_type::reference       reference;
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    typedef typename container_type::const_reference const_reference;
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    typedef typename container_type::size_type       size_type;
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protected:
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    container_type c;
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public:
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    queue() = default;
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    ~queue() = default;
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    queue(const queue& q) = default;
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    queue(queue&& q) = default;
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    queue& operator=(const queue& q) = default;
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    queue& operator=(queue&& q) = default;
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    explicit queue(const container_type& c);
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    explicit queue(container_type&& c)
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    template <class Alloc>
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        explicit queue(const Alloc& a);
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    template <class Alloc>
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        queue(const container_type& c, const Alloc& a);
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    template <class Alloc>
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        queue(container_type&& c, const Alloc& a);
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    template <class Alloc>
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        queue(const queue& q, const Alloc& a);
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    template <class Alloc>
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        queue(queue&& q, const Alloc& a);
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    bool      empty() const;
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    size_type size() const;
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    reference       front();
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    const_reference front() const;
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    reference       back();
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    const_reference back() const;
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    void push(const value_type& v);
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    void push(value_type&& v);
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    template <class... Args> void emplace(Args&&... args);
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    void pop();
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    void swap(queue& q) noexcept(noexcept(swap(c, q.c)));
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};
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template <class T, class Container>
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  bool operator==(const queue<T, Container>& x,const queue<T, Container>& y);
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template <class T, class Container>
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  bool operator< (const queue<T, Container>& x,const queue<T, Container>& y);
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template <class T, class Container>
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  bool operator!=(const queue<T, Container>& x,const queue<T, Container>& y);
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template <class T, class Container>
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  bool operator> (const queue<T, Container>& x,const queue<T, Container>& y);
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template <class T, class Container>
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  bool operator>=(const queue<T, Container>& x,const queue<T, Container>& y);
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template <class T, class Container>
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  bool operator<=(const queue<T, Container>& x,const queue<T, Container>& y);
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template <class T, class Container>
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  void swap(queue<T, Container>& x, queue<T, Container>& y)
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  noexcept(noexcept(x.swap(y)));
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template <class T, class Container = vector<T>,
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          class Compare = less<typename Container::value_type>>
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class priority_queue
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{
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public:
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    typedef Container                                container_type;
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    typedef typename container_type::value_type      value_type;
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    typedef typename container_type::reference       reference;
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    typedef typename container_type::const_reference const_reference;
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    typedef typename container_type::size_type       size_type;
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protected:
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    container_type c;
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    Compare comp;
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public:
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    priority_queue() = default;
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    ~priority_queue() = default;
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    priority_queue(const priority_queue& q) = default;
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    priority_queue(priority_queue&& q) = default;
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    priority_queue& operator=(const priority_queue& q) = default;
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    priority_queue& operator=(priority_queue&& q) = default;
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    explicit priority_queue(const Compare& comp);
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    priority_queue(const Compare& comp, const container_type& c);
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    explicit priority_queue(const Compare& comp, container_type&& c);
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    template <class InputIterator>
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        priority_queue(InputIterator first, InputIterator last,
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                       const Compare& comp = Compare());
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    template <class InputIterator>
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        priority_queue(InputIterator first, InputIterator last,
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                       const Compare& comp, const container_type& c);
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    template <class InputIterator>
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        priority_queue(InputIterator first, InputIterator last,
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                       const Compare& comp, container_type&& c);
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    template <class Alloc>
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        explicit priority_queue(const Alloc& a);
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    template <class Alloc>
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        priority_queue(const Compare& comp, const Alloc& a);
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    template <class Alloc>
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        priority_queue(const Compare& comp, const container_type& c,
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                       const Alloc& a);
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    template <class Alloc>
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        priority_queue(const Compare& comp, container_type&& c,
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                       const Alloc& a);
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    template <class Alloc>
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        priority_queue(const priority_queue& q, const Alloc& a);
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    template <class Alloc>
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        priority_queue(priority_queue&& q, const Alloc& a);
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    bool            empty() const;
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    size_type       size() const;
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    const_reference top() const;
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    void push(const value_type& v);
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    void push(value_type&& v);
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    template <class... Args> void emplace(Args&&... args);
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    void pop();
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    void swap(priority_queue& q)
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        noexcept(noexcept(swap(c, q.c)) && noexcept(swap(comp.q.comp)));
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};
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template <class T, class Container, class Compare>
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  void swap(priority_queue<T, Container, Compare>& x,
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            priority_queue<T, Container, Compare>& y)
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            noexcept(noexcept(x.swap(y)));
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}  // std
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*/
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#include <__config>
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#include <deque>
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#include <vector>
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#include <functional>
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#include <algorithm>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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#pragma GCC system_header
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#endif
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_LIBCPP_BEGIN_NAMESPACE_STD
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template <class _Tp, class _Container = deque<_Tp> > class _LIBCPP_TYPE_VIS_ONLY queue;
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template <class _Tp, class _Container>
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_LIBCPP_INLINE_VISIBILITY
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bool
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operator==(const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y);
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template <class _Tp, class _Container>
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_LIBCPP_INLINE_VISIBILITY
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bool
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operator< (const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y);
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template <class _Tp, class _Container /*= deque<_Tp>*/>
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class _LIBCPP_TYPE_VIS_ONLY queue
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{
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public:
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    typedef _Container                               container_type;
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    typedef typename container_type::value_type      value_type;
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    typedef typename container_type::reference       reference;
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    typedef typename container_type::const_reference const_reference;
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    typedef typename container_type::size_type       size_type;
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protected:
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    container_type c;
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public:
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    _LIBCPP_INLINE_VISIBILITY
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    queue()
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        _NOEXCEPT_(is_nothrow_default_constructible<container_type>::value)
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        : c() {}
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    _LIBCPP_INLINE_VISIBILITY
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    queue(const queue& __q) : c(__q.c) {}
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
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    _LIBCPP_INLINE_VISIBILITY
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    queue(queue&& __q)
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        _NOEXCEPT_(is_nothrow_move_constructible<container_type>::value)
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        : c(_VSTD::move(__q.c)) {}
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#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
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    _LIBCPP_INLINE_VISIBILITY
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    queue& operator=(const queue& __q) {c = __q.c; return *this;}
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
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    _LIBCPP_INLINE_VISIBILITY
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    queue& operator=(queue&& __q)
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        _NOEXCEPT_(is_nothrow_move_assignable<container_type>::value)
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        {c = _VSTD::move(__q.c); return *this;}
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#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
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    _LIBCPP_INLINE_VISIBILITY
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    explicit queue(const container_type& __c)  : c(__c) {}
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
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    _LIBCPP_INLINE_VISIBILITY
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    explicit queue(container_type&& __c) : c(_VSTD::move(__c)) {}
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#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
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    template <class _Alloc>
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        _LIBCPP_INLINE_VISIBILITY
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        explicit queue(const _Alloc& __a,
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                       typename enable_if<uses_allocator<container_type,
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                                                         _Alloc>::value>::type* = 0)
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            : c(__a) {}
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    template <class _Alloc>
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        _LIBCPP_INLINE_VISIBILITY
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        queue(const queue& __q, const _Alloc& __a,
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                       typename enable_if<uses_allocator<container_type,
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                                                         _Alloc>::value>::type* = 0)
248
            : c(__q.c, __a) {}
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    template <class _Alloc>
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        _LIBCPP_INLINE_VISIBILITY
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        queue(const container_type& __c, const _Alloc& __a,
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                       typename enable_if<uses_allocator<container_type,
253
                                                         _Alloc>::value>::type* = 0)
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            : c(__c, __a) {}
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
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    template <class _Alloc>
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        _LIBCPP_INLINE_VISIBILITY
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        queue(container_type&& __c, const _Alloc& __a,
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                       typename enable_if<uses_allocator<container_type,
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                                                         _Alloc>::value>::type* = 0)
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            : c(_VSTD::move(__c), __a) {}
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    template <class _Alloc>
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        _LIBCPP_INLINE_VISIBILITY
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        queue(queue&& __q, const _Alloc& __a,
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                       typename enable_if<uses_allocator<container_type,
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                                                         _Alloc>::value>::type* = 0)
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            : c(_VSTD::move(__q.c), __a) {}
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#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
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    _LIBCPP_INLINE_VISIBILITY
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    bool      empty() const {return c.empty();}
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    _LIBCPP_INLINE_VISIBILITY
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    size_type size() const  {return c.size();}
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    _LIBCPP_INLINE_VISIBILITY
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    reference       front()       {return c.front();}
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    _LIBCPP_INLINE_VISIBILITY
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    const_reference front() const {return c.front();}
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    _LIBCPP_INLINE_VISIBILITY
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    reference       back()        {return c.back();}
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    _LIBCPP_INLINE_VISIBILITY
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    const_reference back() const  {return c.back();}
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    _LIBCPP_INLINE_VISIBILITY
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    void push(const value_type& __v) {c.push_back(__v);}
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
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    _LIBCPP_INLINE_VISIBILITY
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    void push(value_type&& __v)      {c.push_back(_VSTD::move(__v));}
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#ifndef _LIBCPP_HAS_NO_VARIADICS
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    template <class... _Args>
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        _LIBCPP_INLINE_VISIBILITY
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        void emplace(_Args&&... __args)
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            {c.emplace_back(_VSTD::forward<_Args>(__args)...);}
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#endif  // _LIBCPP_HAS_NO_VARIADICS
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#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
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    _LIBCPP_INLINE_VISIBILITY
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    void pop() {c.pop_front();}
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    _LIBCPP_INLINE_VISIBILITY
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    void swap(queue& __q)
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        _NOEXCEPT_(__is_nothrow_swappable<container_type>::value)
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    {
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        using _VSTD::swap;
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        swap(c, __q.c);
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    }
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    template <class _T1, class _C1>
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    friend
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    _LIBCPP_INLINE_VISIBILITY
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    bool
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    operator==(const queue<_T1, _C1>& __x,const queue<_T1, _C1>& __y);
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    template <class _T1, class _C1>
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    friend
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    _LIBCPP_INLINE_VISIBILITY
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    bool
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    operator< (const queue<_T1, _C1>& __x,const queue<_T1, _C1>& __y);
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};
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template <class _Tp, class _Container>
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inline _LIBCPP_INLINE_VISIBILITY
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bool
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operator==(const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __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 _Container>
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inline _LIBCPP_INLINE_VISIBILITY
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bool
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operator< (const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __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 _Container>
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inline _LIBCPP_INLINE_VISIBILITY
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bool
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operator!=(const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y)
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{
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    return !(__x == __y);
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}
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template <class _Tp, class _Container>
346
inline _LIBCPP_INLINE_VISIBILITY
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bool
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operator> (const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y)
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{
350
    return __y < __x;
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}
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template <class _Tp, class _Container>
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inline _LIBCPP_INLINE_VISIBILITY
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bool
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operator>=(const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y)
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{
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    return !(__x < __y);
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}
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template <class _Tp, class _Container>
362
inline _LIBCPP_INLINE_VISIBILITY
363
bool
364
operator<=(const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y)
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{
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    return !(__y < __x);
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}
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template <class _Tp, class _Container>
370
inline _LIBCPP_INLINE_VISIBILITY
371
void
372
swap(queue<_Tp, _Container>& __x, queue<_Tp, _Container>& __y)
373
    _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y)))
374
{
375
    __x.swap(__y);
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}
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378
template <class _Tp, class _Container, class _Alloc>
379
struct _LIBCPP_TYPE_VIS_ONLY uses_allocator<queue<_Tp, _Container>, _Alloc>
380
    : public uses_allocator<_Container, _Alloc>
381
{
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};
383
384
template <class _Tp, class _Container = vector<_Tp>,
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          class _Compare = less<typename _Container::value_type> >
386
class _LIBCPP_TYPE_VIS_ONLY priority_queue
387
{
388
public:
389
    typedef _Container                               container_type;
390
    typedef _Compare                                 value_compare;
391
    typedef typename container_type::value_type      value_type;
392
    typedef typename container_type::reference       reference;
393
    typedef typename container_type::const_reference const_reference;
394
    typedef typename container_type::size_type       size_type;
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396
protected:
397
    container_type c;
398
    value_compare comp;
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400
public:
401
    _LIBCPP_INLINE_VISIBILITY
402
    priority_queue()
403
        _NOEXCEPT_(is_nothrow_default_constructible<container_type>::value &&
404
                   is_nothrow_default_constructible<value_compare>::value)
405
        : c(), comp() {}
406
407
    _LIBCPP_INLINE_VISIBILITY
408
    priority_queue(const priority_queue& __q) : c(__q.c), comp(__q.comp) {}
409
410
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
411
    _LIBCPP_INLINE_VISIBILITY
412
    priority_queue(priority_queue&& __q)
413
        _NOEXCEPT_(is_nothrow_move_constructible<container_type>::value &&
414
                   is_nothrow_move_constructible<value_compare>::value)
415
        : c(_VSTD::move(__q.c)), comp(_VSTD::move(__q.comp)) {}
416
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
417
418
    _LIBCPP_INLINE_VISIBILITY
419
    priority_queue& operator=(const priority_queue& __q)
420
        {c = __q.c; comp = __q.comp; return *this;}
421
422
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
423
    _LIBCPP_INLINE_VISIBILITY
424
    priority_queue& operator=(priority_queue&& __q)
425
        _NOEXCEPT_(is_nothrow_move_assignable<container_type>::value &&
426
                   is_nothrow_move_assignable<value_compare>::value)
427
        {c = _VSTD::move(__q.c); comp = _VSTD::move(__q.comp); return *this;}
428
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
429
430
    _LIBCPP_INLINE_VISIBILITY
431
    explicit priority_queue(const value_compare& __comp)
432
        : c(), comp(__comp) {}
433
    priority_queue(const value_compare& __comp, const container_type& __c);
434
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
435
    explicit priority_queue(const value_compare& __comp, container_type&& __c);
436
#endif
437
    template <class _InputIter>
438
        priority_queue(_InputIter __f, _InputIter __l,
439
                       const value_compare& __comp = value_compare());
440
    template <class _InputIter>
441
        priority_queue(_InputIter __f, _InputIter __l,
442
                       const value_compare& __comp, const container_type& __c);
443
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
444
    template <class _InputIter>
445
        priority_queue(_InputIter __f, _InputIter __l,
446
                       const value_compare& __comp, container_type&& __c);
447
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
448
    template <class _Alloc>
449
        explicit priority_queue(const _Alloc& __a,
450
                       typename enable_if<uses_allocator<container_type,
451
                                                         _Alloc>::value>::type* = 0);
452
    template <class _Alloc>
453
        priority_queue(const value_compare& __comp, const _Alloc& __a,
454
                       typename enable_if<uses_allocator<container_type,
455
                                                         _Alloc>::value>::type* = 0);
456
    template <class _Alloc>
457
        priority_queue(const value_compare& __comp, const container_type& __c,
458
                       const _Alloc& __a,
459
                       typename enable_if<uses_allocator<container_type,
460
                                                         _Alloc>::value>::type* = 0);
461
    template <class _Alloc>
462
        priority_queue(const priority_queue& __q, const _Alloc& __a,
463
                       typename enable_if<uses_allocator<container_type,
464
                                                         _Alloc>::value>::type* = 0);
465
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
466
    template <class _Alloc>
467
        priority_queue(const value_compare& __comp, container_type&& __c,
468
                       const _Alloc& __a,
469
                       typename enable_if<uses_allocator<container_type,
470
                                                         _Alloc>::value>::type* = 0);
471
    template <class _Alloc>
472
        priority_queue(priority_queue&& __q, const _Alloc& __a,
473
                       typename enable_if<uses_allocator<container_type,
474
                                                         _Alloc>::value>::type* = 0);
475
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
476
477
    _LIBCPP_INLINE_VISIBILITY
478
    bool            empty() const {return c.empty();}
479
    _LIBCPP_INLINE_VISIBILITY
480
    size_type       size() const  {return c.size();}
481
    _LIBCPP_INLINE_VISIBILITY
482
    const_reference top() const   {return c.front();}
483
484
    void push(const value_type& __v);
485
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
486
    void push(value_type&& __v);
487
#ifndef _LIBCPP_HAS_NO_VARIADICS
488
    template <class... _Args> void emplace(_Args&&... __args);
489
#endif
490
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
491
    void pop();
492
493
    void swap(priority_queue& __q)
494
        _NOEXCEPT_(__is_nothrow_swappable<container_type>::value &&
495
                   __is_nothrow_swappable<value_compare>::value);
496
};
497
498
template <class _Tp, class _Container, class _Compare>
499
inline _LIBCPP_INLINE_VISIBILITY
500
priority_queue<_Tp, _Container, _Compare>::priority_queue(const _Compare& __comp,
501
                                                          const container_type& __c)
502
    : c(__c),
503
      comp(__comp)
504
{
505
    _VSTD::make_heap(c.begin(), c.end(), comp);
506
}
507
508
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
509
510
template <class _Tp, class _Container, class _Compare>
511
inline _LIBCPP_INLINE_VISIBILITY
512
priority_queue<_Tp, _Container, _Compare>::priority_queue(const value_compare& __comp,
513
                                                          container_type&& __c)
514
    : c(_VSTD::move(__c)),
515
      comp(__comp)
516
{
517
    _VSTD::make_heap(c.begin(), c.end(), comp);
518
}
519
520
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
521
522
template <class _Tp, class _Container, class _Compare>
523
template <class _InputIter>
524
inline _LIBCPP_INLINE_VISIBILITY
525
priority_queue<_Tp, _Container, _Compare>::priority_queue(_InputIter __f, _InputIter __l,
526
                                                          const value_compare& __comp)
527
    : c(__f, __l),
528
      comp(__comp)
529
{
530
    _VSTD::make_heap(c.begin(), c.end(), comp);
531
}
532
533
template <class _Tp, class _Container, class _Compare>
534
template <class _InputIter>
535
inline _LIBCPP_INLINE_VISIBILITY
536
priority_queue<_Tp, _Container, _Compare>::priority_queue(_InputIter __f, _InputIter __l,
537
                                                          const value_compare& __comp,
538
                                                          const container_type& __c)
539
    : c(__c),
540
      comp(__comp)
541
{
542
    c.insert(c.end(), __f, __l);
543
    _VSTD::make_heap(c.begin(), c.end(), comp);
544
}
545
546
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
547
548
template <class _Tp, class _Container, class _Compare>
549
template <class _InputIter>
550
inline _LIBCPP_INLINE_VISIBILITY
551
priority_queue<_Tp, _Container, _Compare>::priority_queue(_InputIter __f, _InputIter __l,
552
                                                          const value_compare& __comp,
553
                                                          container_type&& __c)
554
    : c(_VSTD::move(__c)),
555
      comp(__comp)
556
{
557
    c.insert(c.end(), __f, __l);
558
    _VSTD::make_heap(c.begin(), c.end(), comp);
559
}
560
561
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
562
563
template <class _Tp, class _Container, class _Compare>
564
template <class _Alloc>
565
inline _LIBCPP_INLINE_VISIBILITY
566
priority_queue<_Tp, _Container, _Compare>::priority_queue(const _Alloc& __a,
567
                       typename enable_if<uses_allocator<container_type,
568
                                                         _Alloc>::value>::type*)
569
    : c(__a)
570
{
571
}
572
573
template <class _Tp, class _Container, class _Compare>
574
template <class _Alloc>
575
inline _LIBCPP_INLINE_VISIBILITY
576
priority_queue<_Tp, _Container, _Compare>::priority_queue(const value_compare& __comp,
577
                                                          const _Alloc& __a,
578
                       typename enable_if<uses_allocator<container_type,
579
                                                         _Alloc>::value>::type*)
580
    : c(__a),
581
      comp(__comp)
582
{
583
}
584
585
template <class _Tp, class _Container, class _Compare>
586
template <class _Alloc>
587
inline _LIBCPP_INLINE_VISIBILITY
588
priority_queue<_Tp, _Container, _Compare>::priority_queue(const value_compare& __comp,
589
                                                          const container_type& __c,
590
                                                          const _Alloc& __a,
591
                       typename enable_if<uses_allocator<container_type,
592
                                                         _Alloc>::value>::type*)
593
    : c(__c, __a),
594
      comp(__comp)
595
{
596
    _VSTD::make_heap(c.begin(), c.end(), comp);
597
}
598
599
template <class _Tp, class _Container, class _Compare>
600
template <class _Alloc>
601
inline _LIBCPP_INLINE_VISIBILITY
602
priority_queue<_Tp, _Container, _Compare>::priority_queue(const priority_queue& __q,
603
                                                          const _Alloc& __a,
604
                       typename enable_if<uses_allocator<container_type,
605
                                                         _Alloc>::value>::type*)
606
    : c(__q.c, __a),
607
      comp(__q.comp)
608
{
609
    _VSTD::make_heap(c.begin(), c.end(), comp);
610
}
611
612
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
613
614
template <class _Tp, class _Container, class _Compare>
615
template <class _Alloc>
616
inline _LIBCPP_INLINE_VISIBILITY
617
priority_queue<_Tp, _Container, _Compare>::priority_queue(const value_compare& __comp,
618
                                                          container_type&& __c,
619
                                                          const _Alloc& __a,
620
                       typename enable_if<uses_allocator<container_type,
621
                                                         _Alloc>::value>::type*)
622
    : c(_VSTD::move(__c), __a),
623
      comp(__comp)
624
{
625
    _VSTD::make_heap(c.begin(), c.end(), comp);
626
}
627
628
template <class _Tp, class _Container, class _Compare>
629
template <class _Alloc>
630
inline _LIBCPP_INLINE_VISIBILITY
631
priority_queue<_Tp, _Container, _Compare>::priority_queue(priority_queue&& __q,
632
                                                          const _Alloc& __a,
633
                       typename enable_if<uses_allocator<container_type,
634
                                                         _Alloc>::value>::type*)
635
    : c(_VSTD::move(__q.c), __a),
636
      comp(_VSTD::move(__q.comp))
637
{
638
    _VSTD::make_heap(c.begin(), c.end(), comp);
639
}
640
641
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
642
643
template <class _Tp, class _Container, class _Compare>
644
inline _LIBCPP_INLINE_VISIBILITY
645
void
646
priority_queue<_Tp, _Container, _Compare>::push(const value_type& __v)
647
{
648
    c.push_back(__v);
649
    _VSTD::push_heap(c.begin(), c.end(), comp);
650
}
651
652
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
653
654
template <class _Tp, class _Container, class _Compare>
655
inline _LIBCPP_INLINE_VISIBILITY
656
void
657
priority_queue<_Tp, _Container, _Compare>::push(value_type&& __v)
658
{
659
    c.push_back(_VSTD::move(__v));
660
    _VSTD::push_heap(c.begin(), c.end(), comp);
661
}
662
663
#ifndef _LIBCPP_HAS_NO_VARIADICS
664
665
template <class _Tp, class _Container, class _Compare>
666
template <class... _Args>
667
inline _LIBCPP_INLINE_VISIBILITY
668
void
669
priority_queue<_Tp, _Container, _Compare>::emplace(_Args&&... __args)
670
{
671
    c.emplace_back(_VSTD::forward<_Args>(__args)...);
672
    _VSTD::push_heap(c.begin(), c.end(), comp);
673
}
674
675
#endif  // _LIBCPP_HAS_NO_VARIADICS
676
#endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
677
678
template <class _Tp, class _Container, class _Compare>
679
inline _LIBCPP_INLINE_VISIBILITY
680
void
681
priority_queue<_Tp, _Container, _Compare>::pop()
682
{
683
    _VSTD::pop_heap(c.begin(), c.end(), comp);
684
    c.pop_back();
685
}
686
687
template <class _Tp, class _Container, class _Compare>
688
inline _LIBCPP_INLINE_VISIBILITY
689
void
690
priority_queue<_Tp, _Container, _Compare>::swap(priority_queue& __q)
691
        _NOEXCEPT_(__is_nothrow_swappable<container_type>::value &&
692
                   __is_nothrow_swappable<value_compare>::value)
693
{
694
    using _VSTD::swap;
695
    swap(c, __q.c);
696
    swap(comp, __q.comp);
697
}
698
699
template <class _Tp, class _Container, class _Compare>
700
inline _LIBCPP_INLINE_VISIBILITY
701
void
702
swap(priority_queue<_Tp, _Container, _Compare>& __x,
703
     priority_queue<_Tp, _Container, _Compare>& __y)
704
    _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y)))
705
{
706
    __x.swap(__y);
707
}
708
709
template <class _Tp, class _Container, class _Compare, class _Alloc>
710
struct _LIBCPP_TYPE_VIS_ONLY uses_allocator<priority_queue<_Tp, _Container, _Compare>, _Alloc>
711
    : public uses_allocator<_Container, _Alloc>
712
{
713
};
714
715
_LIBCPP_END_NAMESPACE_STD
716
717
#endif  // _LIBCPP_QUEUE