|  | // -*- C++ -*- | 
|  | //===--------------------------- queue ------------------------------------===// | 
|  | // | 
|  | //                     The LLVM Compiler Infrastructure | 
|  | // | 
|  | // This file is dual licensed under the MIT and the University of Illinois Open | 
|  | // Source Licenses. See LICENSE.TXT for details. | 
|  | // | 
|  | //===----------------------------------------------------------------------===// | 
|  |  | 
|  | #ifndef _LIBCPP_QUEUE | 
|  | #define _LIBCPP_QUEUE | 
|  |  | 
|  | /* | 
|  | queue synopsis | 
|  |  | 
|  | namespace std | 
|  | { | 
|  |  | 
|  | template <class T, class Container = deque<T>> | 
|  | class queue | 
|  | { | 
|  | public: | 
|  | typedef Container                                container_type; | 
|  | typedef typename container_type::value_type      value_type; | 
|  | typedef typename container_type::reference       reference; | 
|  | typedef typename container_type::const_reference const_reference; | 
|  | typedef typename container_type::size_type       size_type; | 
|  |  | 
|  | protected: | 
|  | container_type c; | 
|  |  | 
|  | public: | 
|  | queue() = default; | 
|  | ~queue() = default; | 
|  |  | 
|  | queue(const queue& q) = default; | 
|  | queue(queue&& q) = default; | 
|  |  | 
|  | queue& operator=(const queue& q) = default; | 
|  | queue& operator=(queue&& q) = default; | 
|  |  | 
|  | explicit queue(const container_type& c); | 
|  | explicit queue(container_type&& c) | 
|  | template <class Alloc> | 
|  | explicit queue(const Alloc& a); | 
|  | template <class Alloc> | 
|  | queue(const container_type& c, const Alloc& a); | 
|  | template <class Alloc> | 
|  | queue(container_type&& c, const Alloc& a); | 
|  | template <class Alloc> | 
|  | queue(const queue& q, const Alloc& a); | 
|  | template <class Alloc> | 
|  | queue(queue&& q, const Alloc& a); | 
|  |  | 
|  | bool      empty() const; | 
|  | size_type size() const; | 
|  |  | 
|  | reference       front(); | 
|  | const_reference front() const; | 
|  | reference       back(); | 
|  | const_reference back() const; | 
|  |  | 
|  | void push(const value_type& v); | 
|  | void push(value_type&& v); | 
|  | template <class... Args> reference emplace(Args&&... args); // reference in C++17 | 
|  | void pop(); | 
|  |  | 
|  | void swap(queue& q) noexcept(is_nothrow_swappable_v<Container>) | 
|  | }; | 
|  |  | 
|  | template<class Container> | 
|  | queue(Container) -> queue<typename Container::value_type, Container>; // C++17 | 
|  |  | 
|  | template<class Container, class Allocator> | 
|  | queue(Container, Allocator) -> queue<typename Container::value_type, Container>; // C++17 | 
|  |  | 
|  | template <class T, class Container> | 
|  | bool operator==(const queue<T, Container>& x,const queue<T, Container>& y); | 
|  |  | 
|  | template <class T, class Container> | 
|  | bool operator< (const queue<T, Container>& x,const queue<T, Container>& y); | 
|  |  | 
|  | template <class T, class Container> | 
|  | bool operator!=(const queue<T, Container>& x,const queue<T, Container>& y); | 
|  |  | 
|  | template <class T, class Container> | 
|  | bool operator> (const queue<T, Container>& x,const queue<T, Container>& y); | 
|  |  | 
|  | template <class T, class Container> | 
|  | bool operator>=(const queue<T, Container>& x,const queue<T, Container>& y); | 
|  |  | 
|  | template <class T, class Container> | 
|  | bool operator<=(const queue<T, Container>& x,const queue<T, Container>& y); | 
|  |  | 
|  | template <class T, class Container> | 
|  | void swap(queue<T, Container>& x, queue<T, Container>& y) | 
|  | noexcept(noexcept(x.swap(y))); | 
|  |  | 
|  | template <class T, class Container = vector<T>, | 
|  | class Compare = less<typename Container::value_type>> | 
|  | class priority_queue | 
|  | { | 
|  | public: | 
|  | typedef Container                                container_type; | 
|  | typedef typename container_type::value_type      value_type; | 
|  | typedef typename container_type::reference       reference; | 
|  | typedef typename container_type::const_reference const_reference; | 
|  | typedef typename container_type::size_type       size_type; | 
|  |  | 
|  | protected: | 
|  | container_type c; | 
|  | Compare comp; | 
|  |  | 
|  | public: | 
|  | priority_queue() = default; | 
|  | ~priority_queue() = default; | 
|  |  | 
|  | priority_queue(const priority_queue& q) = default; | 
|  | priority_queue(priority_queue&& q) = default; | 
|  |  | 
|  | priority_queue& operator=(const priority_queue& q) = default; | 
|  | priority_queue& operator=(priority_queue&& q) = default; | 
|  |  | 
|  | explicit priority_queue(const Compare& comp); | 
|  | priority_queue(const Compare& comp, const container_type& c); | 
|  | explicit priority_queue(const Compare& comp, container_type&& c); | 
|  | template <class InputIterator> | 
|  | priority_queue(InputIterator first, InputIterator last, | 
|  | const Compare& comp = Compare()); | 
|  | template <class InputIterator> | 
|  | priority_queue(InputIterator first, InputIterator last, | 
|  | const Compare& comp, const container_type& c); | 
|  | template <class InputIterator> | 
|  | priority_queue(InputIterator first, InputIterator last, | 
|  | const Compare& comp, container_type&& c); | 
|  | template <class Alloc> | 
|  | explicit priority_queue(const Alloc& a); | 
|  | template <class Alloc> | 
|  | priority_queue(const Compare& comp, const Alloc& a); | 
|  | template <class Alloc> | 
|  | priority_queue(const Compare& comp, const container_type& c, | 
|  | const Alloc& a); | 
|  | template <class Alloc> | 
|  | priority_queue(const Compare& comp, container_type&& c, | 
|  | const Alloc& a); | 
|  | template <class Alloc> | 
|  | priority_queue(const priority_queue& q, const Alloc& a); | 
|  | template <class Alloc> | 
|  | priority_queue(priority_queue&& q, const Alloc& a); | 
|  |  | 
|  | bool            empty() const; | 
|  | size_type       size() const; | 
|  | const_reference top() const; | 
|  |  | 
|  | void push(const value_type& v); | 
|  | void push(value_type&& v); | 
|  | template <class... Args> void emplace(Args&&... args); | 
|  | void pop(); | 
|  |  | 
|  | void swap(priority_queue& q) | 
|  | noexcept(is_nothrow_swappable_v<Container> && | 
|  | is_nothrow_swappable_v<Comp>) | 
|  | }; | 
|  |  | 
|  | template <class Compare, class Container> | 
|  | priority_queue(Compare, Container) | 
|  | -> priority_queue<typename Container::value_type, Container, Compare>; // C++17 | 
|  |  | 
|  | template<class InputIterator, | 
|  | class Compare = less<typename iterator_traits<InputIterator>::value_type>, | 
|  | class Container = vector<typename iterator_traits<InputIterator>::value_type>> | 
|  | priority_queue(InputIterator, InputIterator, Compare = Compare(), Container = Container()) | 
|  | -> priority_queue<typename iterator_traits<InputIterator>::value_type, Container, Compare>; // C++17 | 
|  |  | 
|  | template<class Compare, class Container, class Allocator> | 
|  | priority_queue(Compare, Container, Allocator) | 
|  | -> priority_queue<typename Container::value_type, Container, Compare>; // C++17 | 
|  |  | 
|  | template <class T, class Container, class Compare> | 
|  | void swap(priority_queue<T, Container, Compare>& x, | 
|  | priority_queue<T, Container, Compare>& y) | 
|  | noexcept(noexcept(x.swap(y))); | 
|  |  | 
|  | }  // std | 
|  |  | 
|  | */ | 
|  |  | 
|  | #include <__config> | 
|  | #include <deque> | 
|  | #include <vector> | 
|  | #include <functional> | 
|  | #include <algorithm> | 
|  |  | 
|  | #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) | 
|  | #pragma GCC system_header | 
|  | #endif | 
|  |  | 
|  | _LIBCPP_BEGIN_NAMESPACE_STD | 
|  |  | 
|  | template <class _Tp, class _Container = deque<_Tp> > class _LIBCPP_TEMPLATE_VIS queue; | 
|  |  | 
|  | template <class _Tp, class _Container> | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | bool | 
|  | operator==(const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y); | 
|  |  | 
|  | template <class _Tp, class _Container> | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | bool | 
|  | operator< (const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y); | 
|  |  | 
|  | template <class _Tp, class _Container /*= deque<_Tp>*/> | 
|  | class _LIBCPP_TEMPLATE_VIS queue | 
|  | { | 
|  | public: | 
|  | typedef _Container                               container_type; | 
|  | typedef typename container_type::value_type      value_type; | 
|  | typedef typename container_type::reference       reference; | 
|  | typedef typename container_type::const_reference const_reference; | 
|  | typedef typename container_type::size_type       size_type; | 
|  | static_assert((is_same<_Tp, value_type>::value), "" ); | 
|  |  | 
|  | protected: | 
|  | container_type c; | 
|  |  | 
|  | public: | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | queue() | 
|  | _NOEXCEPT_(is_nothrow_default_constructible<container_type>::value) | 
|  | : c() {} | 
|  |  | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | queue(const queue& __q) : c(__q.c) {} | 
|  |  | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | queue& operator=(const queue& __q) {c = __q.c; return *this;} | 
|  |  | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | queue(queue&& __q) | 
|  | _NOEXCEPT_(is_nothrow_move_constructible<container_type>::value) | 
|  | : c(_VSTD::move(__q.c)) {} | 
|  |  | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | queue& operator=(queue&& __q) | 
|  | _NOEXCEPT_(is_nothrow_move_assignable<container_type>::value) | 
|  | {c = _VSTD::move(__q.c); return *this;} | 
|  | #endif  // _LIBCPP_CXX03_LANG | 
|  |  | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | explicit queue(const container_type& __c)  : c(__c) {} | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | explicit queue(container_type&& __c) : c(_VSTD::move(__c)) {} | 
|  | #endif  // _LIBCPP_CXX03_LANG | 
|  | template <class _Alloc> | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | explicit queue(const _Alloc& __a, | 
|  | typename enable_if<uses_allocator<container_type, | 
|  | _Alloc>::value>::type* = 0) | 
|  | : c(__a) {} | 
|  | template <class _Alloc> | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | queue(const queue& __q, const _Alloc& __a, | 
|  | typename enable_if<uses_allocator<container_type, | 
|  | _Alloc>::value>::type* = 0) | 
|  | : c(__q.c, __a) {} | 
|  | template <class _Alloc> | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | queue(const container_type& __c, const _Alloc& __a, | 
|  | typename enable_if<uses_allocator<container_type, | 
|  | _Alloc>::value>::type* = 0) | 
|  | : c(__c, __a) {} | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  | template <class _Alloc> | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | queue(container_type&& __c, const _Alloc& __a, | 
|  | typename enable_if<uses_allocator<container_type, | 
|  | _Alloc>::value>::type* = 0) | 
|  | : c(_VSTD::move(__c), __a) {} | 
|  | template <class _Alloc> | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | queue(queue&& __q, const _Alloc& __a, | 
|  | typename enable_if<uses_allocator<container_type, | 
|  | _Alloc>::value>::type* = 0) | 
|  | : c(_VSTD::move(__q.c), __a) {} | 
|  |  | 
|  | #endif  // _LIBCPP_CXX03_LANG | 
|  |  | 
|  | _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY | 
|  | bool      empty() const {return c.empty();} | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | size_type size() const  {return c.size();} | 
|  |  | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | reference       front()       {return c.front();} | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | const_reference front() const {return c.front();} | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | reference       back()        {return c.back();} | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | const_reference back() const  {return c.back();} | 
|  |  | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | void push(const value_type& __v) {c.push_back(__v);} | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | void push(value_type&& __v)      {c.push_back(_VSTD::move(__v));} | 
|  | template <class... _Args> | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | #if _LIBCPP_STD_VER > 14 | 
|  | decltype(auto) emplace(_Args&&... __args) | 
|  | { return c.emplace_back(_VSTD::forward<_Args>(__args)...);} | 
|  | #else | 
|  | void     emplace(_Args&&... __args) | 
|  | {        c.emplace_back(_VSTD::forward<_Args>(__args)...);} | 
|  | #endif | 
|  | #endif  // _LIBCPP_CXX03_LANG | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | void pop() {c.pop_front();} | 
|  |  | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | void swap(queue& __q) | 
|  | _NOEXCEPT_(__is_nothrow_swappable<container_type>::value) | 
|  | { | 
|  | using _VSTD::swap; | 
|  | swap(c, __q.c); | 
|  | } | 
|  |  | 
|  | template <class _T1, class _C1> | 
|  | friend | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | bool | 
|  | operator==(const queue<_T1, _C1>& __x,const queue<_T1, _C1>& __y); | 
|  |  | 
|  | template <class _T1, class _C1> | 
|  | friend | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | bool | 
|  | operator< (const queue<_T1, _C1>& __x,const queue<_T1, _C1>& __y); | 
|  | }; | 
|  |  | 
|  | #ifndef _LIBCPP_HAS_NO_DEDUCTION_GUIDES | 
|  | template<class _Container, | 
|  | class = typename enable_if<!__is_allocator<_Container>::value, nullptr_t>::type | 
|  | > | 
|  | queue(_Container) | 
|  | -> queue<typename _Container::value_type, _Container>; | 
|  |  | 
|  | template<class _Container, | 
|  | class _Alloc, | 
|  | class = typename enable_if<!__is_allocator<_Container>::value, nullptr_t>::type, | 
|  | class = typename enable_if< __is_allocator<_Alloc>::value, nullptr_t>::type | 
|  | > | 
|  | queue(_Container, _Alloc) | 
|  | -> queue<typename _Container::value_type, _Container>; | 
|  | #endif | 
|  |  | 
|  | template <class _Tp, class _Container> | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | bool | 
|  | operator==(const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y) | 
|  | { | 
|  | return __x.c == __y.c; | 
|  | } | 
|  |  | 
|  | template <class _Tp, class _Container> | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | bool | 
|  | operator< (const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y) | 
|  | { | 
|  | return __x.c < __y.c; | 
|  | } | 
|  |  | 
|  | template <class _Tp, class _Container> | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | bool | 
|  | operator!=(const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y) | 
|  | { | 
|  | return !(__x == __y); | 
|  | } | 
|  |  | 
|  | template <class _Tp, class _Container> | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | bool | 
|  | operator> (const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y) | 
|  | { | 
|  | return __y < __x; | 
|  | } | 
|  |  | 
|  | template <class _Tp, class _Container> | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | bool | 
|  | operator>=(const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y) | 
|  | { | 
|  | return !(__x < __y); | 
|  | } | 
|  |  | 
|  | template <class _Tp, class _Container> | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | bool | 
|  | operator<=(const queue<_Tp, _Container>& __x,const queue<_Tp, _Container>& __y) | 
|  | { | 
|  | return !(__y < __x); | 
|  | } | 
|  |  | 
|  | template <class _Tp, class _Container> | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | typename enable_if< | 
|  | __is_swappable<_Container>::value, | 
|  | void | 
|  | >::type | 
|  | swap(queue<_Tp, _Container>& __x, queue<_Tp, _Container>& __y) | 
|  | _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) | 
|  | { | 
|  | __x.swap(__y); | 
|  | } | 
|  |  | 
|  | template <class _Tp, class _Container, class _Alloc> | 
|  | struct _LIBCPP_TEMPLATE_VIS uses_allocator<queue<_Tp, _Container>, _Alloc> | 
|  | : public uses_allocator<_Container, _Alloc> | 
|  | { | 
|  | }; | 
|  |  | 
|  | template <class _Tp, class _Container = vector<_Tp>, | 
|  | class _Compare = less<typename _Container::value_type> > | 
|  | class _LIBCPP_TEMPLATE_VIS priority_queue | 
|  | { | 
|  | public: | 
|  | typedef _Container                               container_type; | 
|  | typedef _Compare                                 value_compare; | 
|  | typedef typename container_type::value_type      value_type; | 
|  | typedef typename container_type::reference       reference; | 
|  | typedef typename container_type::const_reference const_reference; | 
|  | typedef typename container_type::size_type       size_type; | 
|  | static_assert((is_same<_Tp, value_type>::value), "" ); | 
|  |  | 
|  | protected: | 
|  | container_type c; | 
|  | value_compare comp; | 
|  |  | 
|  | public: | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | priority_queue() | 
|  | _NOEXCEPT_(is_nothrow_default_constructible<container_type>::value && | 
|  | is_nothrow_default_constructible<value_compare>::value) | 
|  | : c(), comp() {} | 
|  |  | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | priority_queue(const priority_queue& __q) : c(__q.c), comp(__q.comp) {} | 
|  |  | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | priority_queue& operator=(const priority_queue& __q) | 
|  | {c = __q.c; comp = __q.comp; return *this;} | 
|  |  | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | priority_queue(priority_queue&& __q) | 
|  | _NOEXCEPT_(is_nothrow_move_constructible<container_type>::value && | 
|  | is_nothrow_move_constructible<value_compare>::value) | 
|  | : c(_VSTD::move(__q.c)), comp(_VSTD::move(__q.comp)) {} | 
|  |  | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | priority_queue& operator=(priority_queue&& __q) | 
|  | _NOEXCEPT_(is_nothrow_move_assignable<container_type>::value && | 
|  | is_nothrow_move_assignable<value_compare>::value) | 
|  | {c = _VSTD::move(__q.c); comp = _VSTD::move(__q.comp); return *this;} | 
|  | #endif  // _LIBCPP_CXX03_LANG | 
|  |  | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | explicit priority_queue(const value_compare& __comp) | 
|  | : c(), comp(__comp) {} | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | priority_queue(const value_compare& __comp, const container_type& __c); | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | explicit priority_queue(const value_compare& __comp, container_type&& __c); | 
|  | #endif | 
|  | template <class _InputIter> | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | priority_queue(_InputIter __f, _InputIter __l, | 
|  | const value_compare& __comp = value_compare()); | 
|  | template <class _InputIter> | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | priority_queue(_InputIter __f, _InputIter __l, | 
|  | const value_compare& __comp, const container_type& __c); | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  | template <class _InputIter> | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | priority_queue(_InputIter __f, _InputIter __l, | 
|  | const value_compare& __comp, container_type&& __c); | 
|  | #endif  // _LIBCPP_CXX03_LANG | 
|  | template <class _Alloc> | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | explicit priority_queue(const _Alloc& __a, | 
|  | typename enable_if<uses_allocator<container_type, | 
|  | _Alloc>::value>::type* = 0); | 
|  | template <class _Alloc> | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | priority_queue(const value_compare& __comp, const _Alloc& __a, | 
|  | typename enable_if<uses_allocator<container_type, | 
|  | _Alloc>::value>::type* = 0); | 
|  | template <class _Alloc> | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | priority_queue(const value_compare& __comp, const container_type& __c, | 
|  | const _Alloc& __a, | 
|  | typename enable_if<uses_allocator<container_type, | 
|  | _Alloc>::value>::type* = 0); | 
|  | template <class _Alloc> | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | priority_queue(const priority_queue& __q, const _Alloc& __a, | 
|  | typename enable_if<uses_allocator<container_type, | 
|  | _Alloc>::value>::type* = 0); | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  | template <class _Alloc> | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | priority_queue(const value_compare& __comp, container_type&& __c, | 
|  | const _Alloc& __a, | 
|  | typename enable_if<uses_allocator<container_type, | 
|  | _Alloc>::value>::type* = 0); | 
|  | template <class _Alloc> | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | priority_queue(priority_queue&& __q, const _Alloc& __a, | 
|  | typename enable_if<uses_allocator<container_type, | 
|  | _Alloc>::value>::type* = 0); | 
|  | #endif  // _LIBCPP_CXX03_LANG | 
|  |  | 
|  | _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY | 
|  | bool            empty() const {return c.empty();} | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | size_type       size() const  {return c.size();} | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | const_reference top() const   {return c.front();} | 
|  |  | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | void push(const value_type& __v); | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | void push(value_type&& __v); | 
|  | template <class... _Args> | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | void emplace(_Args&&... __args); | 
|  | #endif  // _LIBCPP_CXX03_LANG | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | void pop(); | 
|  |  | 
|  | _LIBCPP_INLINE_VISIBILITY | 
|  | void swap(priority_queue& __q) | 
|  | _NOEXCEPT_(__is_nothrow_swappable<container_type>::value && | 
|  | __is_nothrow_swappable<value_compare>::value); | 
|  | }; | 
|  |  | 
|  | #ifndef _LIBCPP_HAS_NO_DEDUCTION_GUIDES | 
|  | template <class _Compare, | 
|  | class _Container, | 
|  | class = typename enable_if<!__is_allocator<_Compare>::value, nullptr_t>::type, | 
|  | class = typename enable_if<!__is_allocator<_Container>::value, nullptr_t>::type | 
|  | > | 
|  | priority_queue(_Compare, _Container) | 
|  | -> priority_queue<typename _Container::value_type, _Container, _Compare>; | 
|  |  | 
|  | template<class _InputIterator, | 
|  | class _Compare   = less<typename iterator_traits<_InputIterator>::value_type>, | 
|  | class _Container = vector<typename iterator_traits<_InputIterator>::value_type>, | 
|  | class = typename enable_if< __is_input_iterator<_InputIterator>::value, nullptr_t>::type, | 
|  | class = typename enable_if<!__is_allocator<_Compare>::value, nullptr_t>::type, | 
|  | class = typename enable_if<!__is_allocator<_Container>::value, nullptr_t>::type | 
|  | > | 
|  | priority_queue(_InputIterator, _InputIterator, _Compare = _Compare(), _Container = _Container()) | 
|  | -> priority_queue<typename iterator_traits<_InputIterator>::value_type, _Container, _Compare>; | 
|  |  | 
|  | template<class _Compare, | 
|  | class _Container, | 
|  | class _Alloc, | 
|  | class = typename enable_if<!__is_allocator<_Compare>::value, nullptr_t>::type, | 
|  | class = typename enable_if<!__is_allocator<_Container>::value, nullptr_t>::type, | 
|  | class = typename enable_if< __is_allocator<_Alloc>::value, nullptr_t>::type | 
|  | > | 
|  | priority_queue(_Compare, _Container, _Alloc) | 
|  | -> priority_queue<typename _Container::value_type, _Container, _Compare>; | 
|  | #endif | 
|  |  | 
|  | template <class _Tp, class _Container, class _Compare> | 
|  | inline | 
|  | priority_queue<_Tp, _Container, _Compare>::priority_queue(const _Compare& __comp, | 
|  | const container_type& __c) | 
|  | : c(__c), | 
|  | comp(__comp) | 
|  | { | 
|  | _VSTD::make_heap(c.begin(), c.end(), comp); | 
|  | } | 
|  |  | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  |  | 
|  | template <class _Tp, class _Container, class _Compare> | 
|  | inline | 
|  | priority_queue<_Tp, _Container, _Compare>::priority_queue(const value_compare& __comp, | 
|  | container_type&& __c) | 
|  | : c(_VSTD::move(__c)), | 
|  | comp(__comp) | 
|  | { | 
|  | _VSTD::make_heap(c.begin(), c.end(), comp); | 
|  | } | 
|  |  | 
|  | #endif  // _LIBCPP_CXX03_LANG | 
|  |  | 
|  | template <class _Tp, class _Container, class _Compare> | 
|  | template <class _InputIter> | 
|  | inline | 
|  | priority_queue<_Tp, _Container, _Compare>::priority_queue(_InputIter __f, _InputIter __l, | 
|  | const value_compare& __comp) | 
|  | : c(__f, __l), | 
|  | comp(__comp) | 
|  | { | 
|  | _VSTD::make_heap(c.begin(), c.end(), comp); | 
|  | } | 
|  |  | 
|  | template <class _Tp, class _Container, class _Compare> | 
|  | template <class _InputIter> | 
|  | inline | 
|  | priority_queue<_Tp, _Container, _Compare>::priority_queue(_InputIter __f, _InputIter __l, | 
|  | const value_compare& __comp, | 
|  | const container_type& __c) | 
|  | : c(__c), | 
|  | comp(__comp) | 
|  | { | 
|  | c.insert(c.end(), __f, __l); | 
|  | _VSTD::make_heap(c.begin(), c.end(), comp); | 
|  | } | 
|  |  | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  |  | 
|  | template <class _Tp, class _Container, class _Compare> | 
|  | template <class _InputIter> | 
|  | inline | 
|  | priority_queue<_Tp, _Container, _Compare>::priority_queue(_InputIter __f, _InputIter __l, | 
|  | const value_compare& __comp, | 
|  | container_type&& __c) | 
|  | : c(_VSTD::move(__c)), | 
|  | comp(__comp) | 
|  | { | 
|  | c.insert(c.end(), __f, __l); | 
|  | _VSTD::make_heap(c.begin(), c.end(), comp); | 
|  | } | 
|  |  | 
|  | #endif  // _LIBCPP_CXX03_LANG | 
|  |  | 
|  | template <class _Tp, class _Container, class _Compare> | 
|  | template <class _Alloc> | 
|  | inline | 
|  | priority_queue<_Tp, _Container, _Compare>::priority_queue(const _Alloc& __a, | 
|  | typename enable_if<uses_allocator<container_type, | 
|  | _Alloc>::value>::type*) | 
|  | : c(__a) | 
|  | { | 
|  | } | 
|  |  | 
|  | template <class _Tp, class _Container, class _Compare> | 
|  | template <class _Alloc> | 
|  | inline | 
|  | priority_queue<_Tp, _Container, _Compare>::priority_queue(const value_compare& __comp, | 
|  | const _Alloc& __a, | 
|  | typename enable_if<uses_allocator<container_type, | 
|  | _Alloc>::value>::type*) | 
|  | : c(__a), | 
|  | comp(__comp) | 
|  | { | 
|  | } | 
|  |  | 
|  | template <class _Tp, class _Container, class _Compare> | 
|  | template <class _Alloc> | 
|  | inline | 
|  | priority_queue<_Tp, _Container, _Compare>::priority_queue(const value_compare& __comp, | 
|  | const container_type& __c, | 
|  | const _Alloc& __a, | 
|  | typename enable_if<uses_allocator<container_type, | 
|  | _Alloc>::value>::type*) | 
|  | : c(__c, __a), | 
|  | comp(__comp) | 
|  | { | 
|  | _VSTD::make_heap(c.begin(), c.end(), comp); | 
|  | } | 
|  |  | 
|  | template <class _Tp, class _Container, class _Compare> | 
|  | template <class _Alloc> | 
|  | inline | 
|  | priority_queue<_Tp, _Container, _Compare>::priority_queue(const priority_queue& __q, | 
|  | const _Alloc& __a, | 
|  | typename enable_if<uses_allocator<container_type, | 
|  | _Alloc>::value>::type*) | 
|  | : c(__q.c, __a), | 
|  | comp(__q.comp) | 
|  | { | 
|  | _VSTD::make_heap(c.begin(), c.end(), comp); | 
|  | } | 
|  |  | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  |  | 
|  | template <class _Tp, class _Container, class _Compare> | 
|  | template <class _Alloc> | 
|  | inline | 
|  | priority_queue<_Tp, _Container, _Compare>::priority_queue(const value_compare& __comp, | 
|  | container_type&& __c, | 
|  | const _Alloc& __a, | 
|  | typename enable_if<uses_allocator<container_type, | 
|  | _Alloc>::value>::type*) | 
|  | : c(_VSTD::move(__c), __a), | 
|  | comp(__comp) | 
|  | { | 
|  | _VSTD::make_heap(c.begin(), c.end(), comp); | 
|  | } | 
|  |  | 
|  | template <class _Tp, class _Container, class _Compare> | 
|  | template <class _Alloc> | 
|  | inline | 
|  | priority_queue<_Tp, _Container, _Compare>::priority_queue(priority_queue&& __q, | 
|  | const _Alloc& __a, | 
|  | typename enable_if<uses_allocator<container_type, | 
|  | _Alloc>::value>::type*) | 
|  | : c(_VSTD::move(__q.c), __a), | 
|  | comp(_VSTD::move(__q.comp)) | 
|  | { | 
|  | _VSTD::make_heap(c.begin(), c.end(), comp); | 
|  | } | 
|  |  | 
|  | #endif  // _LIBCPP_CXX03_LANG | 
|  |  | 
|  | template <class _Tp, class _Container, class _Compare> | 
|  | inline | 
|  | void | 
|  | priority_queue<_Tp, _Container, _Compare>::push(const value_type& __v) | 
|  | { | 
|  | c.push_back(__v); | 
|  | _VSTD::push_heap(c.begin(), c.end(), comp); | 
|  | } | 
|  |  | 
|  | #ifndef _LIBCPP_CXX03_LANG | 
|  |  | 
|  | template <class _Tp, class _Container, class _Compare> | 
|  | inline | 
|  | void | 
|  | priority_queue<_Tp, _Container, _Compare>::push(value_type&& __v) | 
|  | { | 
|  | c.push_back(_VSTD::move(__v)); | 
|  | _VSTD::push_heap(c.begin(), c.end(), comp); | 
|  | } | 
|  |  | 
|  | template <class _Tp, class _Container, class _Compare> | 
|  | template <class... _Args> | 
|  | inline | 
|  | void | 
|  | priority_queue<_Tp, _Container, _Compare>::emplace(_Args&&... __args) | 
|  | { | 
|  | c.emplace_back(_VSTD::forward<_Args>(__args)...); | 
|  | _VSTD::push_heap(c.begin(), c.end(), comp); | 
|  | } | 
|  |  | 
|  | #endif  // _LIBCPP_CXX03_LANG | 
|  |  | 
|  | template <class _Tp, class _Container, class _Compare> | 
|  | inline | 
|  | void | 
|  | priority_queue<_Tp, _Container, _Compare>::pop() | 
|  | { | 
|  | _VSTD::pop_heap(c.begin(), c.end(), comp); | 
|  | c.pop_back(); | 
|  | } | 
|  |  | 
|  | template <class _Tp, class _Container, class _Compare> | 
|  | inline | 
|  | void | 
|  | priority_queue<_Tp, _Container, _Compare>::swap(priority_queue& __q) | 
|  | _NOEXCEPT_(__is_nothrow_swappable<container_type>::value && | 
|  | __is_nothrow_swappable<value_compare>::value) | 
|  | { | 
|  | using _VSTD::swap; | 
|  | swap(c, __q.c); | 
|  | swap(comp, __q.comp); | 
|  | } | 
|  |  | 
|  | template <class _Tp, class _Container, class _Compare> | 
|  | inline _LIBCPP_INLINE_VISIBILITY | 
|  | typename enable_if< | 
|  | __is_swappable<_Container>::value | 
|  | && __is_swappable<_Compare>::value, | 
|  | void | 
|  | >::type | 
|  | swap(priority_queue<_Tp, _Container, _Compare>& __x, | 
|  | priority_queue<_Tp, _Container, _Compare>& __y) | 
|  | _NOEXCEPT_(_NOEXCEPT_(__x.swap(__y))) | 
|  | { | 
|  | __x.swap(__y); | 
|  | } | 
|  |  | 
|  | template <class _Tp, class _Container, class _Compare, class _Alloc> | 
|  | struct _LIBCPP_TEMPLATE_VIS uses_allocator<priority_queue<_Tp, _Container, _Compare>, _Alloc> | 
|  | : public uses_allocator<_Container, _Alloc> | 
|  | { | 
|  | }; | 
|  |  | 
|  | _LIBCPP_END_NAMESPACE_STD | 
|  |  | 
|  | #endif  // _LIBCPP_QUEUE |