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|
// -*- 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 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 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_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
reference 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);
};
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_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);
};
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
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