/usr/include/c++/v1/forward_list is in libc++-dev 6.0-2.
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1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 | // -*- C++ -*-
//===----------------------- forward_list ---------------------------------===//
//
// 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_FORWARD_LIST
#define _LIBCPP_FORWARD_LIST
/*
forward_list synopsis
namespace std
{
template <class T, class Allocator = allocator<T>>
class forward_list
{
public:
typedef T value_type;
typedef Allocator allocator_type;
typedef value_type& reference;
typedef const value_type& const_reference;
typedef typename allocator_traits<allocator_type>::pointer pointer;
typedef typename allocator_traits<allocator_type>::const_pointer const_pointer;
typedef typename allocator_traits<allocator_type>::size_type size_type;
typedef typename allocator_traits<allocator_type>::difference_type difference_type;
typedef <details> iterator;
typedef <details> const_iterator;
forward_list()
noexcept(is_nothrow_default_constructible<allocator_type>::value);
explicit forward_list(const allocator_type& a);
explicit forward_list(size_type n);
explicit forward_list(size_type n, const allocator_type& a); // C++14
forward_list(size_type n, const value_type& v);
forward_list(size_type n, const value_type& v, const allocator_type& a);
template <class InputIterator>
forward_list(InputIterator first, InputIterator last);
template <class InputIterator>
forward_list(InputIterator first, InputIterator last, const allocator_type& a);
forward_list(const forward_list& x);
forward_list(const forward_list& x, const allocator_type& a);
forward_list(forward_list&& x)
noexcept(is_nothrow_move_constructible<allocator_type>::value);
forward_list(forward_list&& x, const allocator_type& a);
forward_list(initializer_list<value_type> il);
forward_list(initializer_list<value_type> il, const allocator_type& a);
~forward_list();
forward_list& operator=(const forward_list& x);
forward_list& operator=(forward_list&& x)
noexcept(
allocator_type::propagate_on_container_move_assignment::value &&
is_nothrow_move_assignable<allocator_type>::value);
forward_list& operator=(initializer_list<value_type> il);
template <class InputIterator>
void assign(InputIterator first, InputIterator last);
void assign(size_type n, const value_type& v);
void assign(initializer_list<value_type> il);
allocator_type get_allocator() const noexcept;
iterator begin() noexcept;
const_iterator begin() const noexcept;
iterator end() noexcept;
const_iterator end() const noexcept;
const_iterator cbegin() const noexcept;
const_iterator cend() const noexcept;
iterator before_begin() noexcept;
const_iterator before_begin() const noexcept;
const_iterator cbefore_begin() const noexcept;
bool empty() const noexcept;
size_type max_size() const noexcept;
reference front();
const_reference front() const;
template <class... Args> reference emplace_front(Args&&... args); // reference in C++17
void push_front(const value_type& v);
void push_front(value_type&& v);
void pop_front();
template <class... Args>
iterator emplace_after(const_iterator p, Args&&... args);
iterator insert_after(const_iterator p, const value_type& v);
iterator insert_after(const_iterator p, value_type&& v);
iterator insert_after(const_iterator p, size_type n, const value_type& v);
template <class InputIterator>
iterator insert_after(const_iterator p,
InputIterator first, InputIterator last);
iterator insert_after(const_iterator p, initializer_list<value_type> il);
iterator erase_after(const_iterator p);
iterator erase_after(const_iterator first, const_iterator last);
void swap(forward_list& x)
noexcept(allocator_traits<allocator_type>::is_always_equal::value); // C++17
void resize(size_type n);
void resize(size_type n, const value_type& v);
void clear() noexcept;
void splice_after(const_iterator p, forward_list& x);
void splice_after(const_iterator p, forward_list&& x);
void splice_after(const_iterator p, forward_list& x, const_iterator i);
void splice_after(const_iterator p, forward_list&& x, const_iterator i);
void splice_after(const_iterator p, forward_list& x,
const_iterator first, const_iterator last);
void splice_after(const_iterator p, forward_list&& x,
const_iterator first, const_iterator last);
void remove(const value_type& v);
template <class Predicate> void remove_if(Predicate pred);
void unique();
template <class BinaryPredicate> void unique(BinaryPredicate binary_pred);
void merge(forward_list& x);
void merge(forward_list&& x);
template <class Compare> void merge(forward_list& x, Compare comp);
template <class Compare> void merge(forward_list&& x, Compare comp);
void sort();
template <class Compare> void sort(Compare comp);
void reverse() noexcept;
};
template <class T, class Allocator>
bool operator==(const forward_list<T, Allocator>& x,
const forward_list<T, Allocator>& y);
template <class T, class Allocator>
bool operator< (const forward_list<T, Allocator>& x,
const forward_list<T, Allocator>& y);
template <class T, class Allocator>
bool operator!=(const forward_list<T, Allocator>& x,
const forward_list<T, Allocator>& y);
template <class T, class Allocator>
bool operator> (const forward_list<T, Allocator>& x,
const forward_list<T, Allocator>& y);
template <class T, class Allocator>
bool operator>=(const forward_list<T, Allocator>& x,
const forward_list<T, Allocator>& y);
template <class T, class Allocator>
bool operator<=(const forward_list<T, Allocator>& x,
const forward_list<T, Allocator>& y);
template <class T, class Allocator>
void swap(forward_list<T, Allocator>& x, forward_list<T, Allocator>& y)
noexcept(noexcept(x.swap(y)));
} // std
*/
#include <__config>
#include <initializer_list>
#include <memory>
#include <limits>
#include <iterator>
#include <algorithm>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include <__undef_macros>
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _Tp, class _VoidPtr> struct __forward_list_node;
template <class _NodePtr> struct __forward_begin_node;
template <class>
struct __forward_list_node_value_type;
template <class _Tp, class _VoidPtr>
struct __forward_list_node_value_type<__forward_list_node<_Tp, _VoidPtr> > {
typedef _Tp type;
};
template <class _NodePtr>
struct __forward_node_traits {
typedef typename remove_cv<
typename pointer_traits<_NodePtr>::element_type>::type __node;
typedef typename __forward_list_node_value_type<__node>::type __node_value_type;
typedef _NodePtr __node_pointer;
typedef __forward_begin_node<_NodePtr> __begin_node;
typedef typename __rebind_pointer<_NodePtr, __begin_node>::type
__begin_node_pointer;
typedef typename __rebind_pointer<_NodePtr, void>::type __void_pointer;
#if defined(_LIBCPP_ABI_FORWARD_LIST_REMOVE_NODE_POINTER_UB)
typedef __begin_node_pointer __iter_node_pointer;
#else
typedef typename conditional<
is_pointer<__void_pointer>::value,
__begin_node_pointer,
__node_pointer
>::type __iter_node_pointer;
#endif
typedef typename conditional<
is_same<__iter_node_pointer, __node_pointer>::value,
__begin_node_pointer,
__node_pointer
>::type __non_iter_node_pointer;
_LIBCPP_INLINE_VISIBILITY
static __iter_node_pointer __as_iter_node(__iter_node_pointer __p) {
return __p;
}
_LIBCPP_INLINE_VISIBILITY
static __iter_node_pointer __as_iter_node(__non_iter_node_pointer __p) {
return static_cast<__iter_node_pointer>(static_cast<__void_pointer>(__p));
}
};
template <class _NodePtr>
struct __forward_begin_node
{
typedef _NodePtr pointer;
typedef typename __rebind_pointer<_NodePtr, __forward_begin_node>::type __begin_node_pointer;
pointer __next_;
_LIBCPP_INLINE_VISIBILITY __forward_begin_node() : __next_(nullptr) {}
_LIBCPP_INLINE_VISIBILITY
__begin_node_pointer __next_as_begin() const {
return static_cast<__begin_node_pointer>(__next_);
}
};
template <class _Tp, class _VoidPtr>
struct _LIBCPP_HIDDEN __begin_node_of
{
typedef __forward_begin_node<
typename __rebind_pointer<_VoidPtr, __forward_list_node<_Tp, _VoidPtr> >::type
> type;
};
template <class _Tp, class _VoidPtr>
struct __forward_list_node
: public __begin_node_of<_Tp, _VoidPtr>::type
{
typedef _Tp value_type;
value_type __value_;
};
template <class _Tp, class _Alloc = allocator<_Tp> > class _LIBCPP_TEMPLATE_VIS forward_list;
template<class _NodeConstPtr> class _LIBCPP_TEMPLATE_VIS __forward_list_const_iterator;
template <class _NodePtr>
class _LIBCPP_TEMPLATE_VIS __forward_list_iterator
{
typedef __forward_node_traits<_NodePtr> __traits;
typedef typename __traits::__node_pointer __node_pointer;
typedef typename __traits::__begin_node_pointer __begin_node_pointer;
typedef typename __traits::__iter_node_pointer __iter_node_pointer;
typedef typename __traits::__void_pointer __void_pointer;
__iter_node_pointer __ptr_;
_LIBCPP_INLINE_VISIBILITY
__begin_node_pointer __get_begin() const {
return static_cast<__begin_node_pointer>(
static_cast<__void_pointer>(__ptr_));
}
_LIBCPP_INLINE_VISIBILITY
__node_pointer __get_unsafe_node_pointer() const {
return static_cast<__node_pointer>(
static_cast<__void_pointer>(__ptr_));
}
_LIBCPP_INLINE_VISIBILITY
explicit __forward_list_iterator(nullptr_t) _NOEXCEPT : __ptr_(nullptr) {}
_LIBCPP_INLINE_VISIBILITY
explicit __forward_list_iterator(__begin_node_pointer __p) _NOEXCEPT
: __ptr_(__traits::__as_iter_node(__p)) {}
_LIBCPP_INLINE_VISIBILITY
explicit __forward_list_iterator(__node_pointer __p) _NOEXCEPT
: __ptr_(__traits::__as_iter_node(__p)) {}
template<class, class> friend class _LIBCPP_TEMPLATE_VIS forward_list;
template<class> friend class _LIBCPP_TEMPLATE_VIS __forward_list_const_iterator;
public:
typedef forward_iterator_tag iterator_category;
typedef typename __traits::__node_value_type value_type;
typedef value_type& reference;
typedef typename pointer_traits<__node_pointer>::difference_type
difference_type;
typedef typename __rebind_pointer<__node_pointer, value_type>::type pointer;
_LIBCPP_INLINE_VISIBILITY
__forward_list_iterator() _NOEXCEPT : __ptr_(nullptr) {}
_LIBCPP_INLINE_VISIBILITY
reference operator*() const {return __get_unsafe_node_pointer()->__value_;}
_LIBCPP_INLINE_VISIBILITY
pointer operator->() const {
return pointer_traits<pointer>::pointer_to(__get_unsafe_node_pointer()->__value_);
}
_LIBCPP_INLINE_VISIBILITY
__forward_list_iterator& operator++()
{
__ptr_ = __traits::__as_iter_node(__ptr_->__next_);
return *this;
}
_LIBCPP_INLINE_VISIBILITY
__forward_list_iterator operator++(int)
{
__forward_list_iterator __t(*this);
++(*this);
return __t;
}
friend _LIBCPP_INLINE_VISIBILITY
bool operator==(const __forward_list_iterator& __x,
const __forward_list_iterator& __y)
{return __x.__ptr_ == __y.__ptr_;}
friend _LIBCPP_INLINE_VISIBILITY
bool operator!=(const __forward_list_iterator& __x,
const __forward_list_iterator& __y)
{return !(__x == __y);}
};
template <class _NodeConstPtr>
class _LIBCPP_TEMPLATE_VIS __forward_list_const_iterator
{
static_assert((!is_const<typename pointer_traits<_NodeConstPtr>::element_type>::value), "");
typedef _NodeConstPtr _NodePtr;
typedef __forward_node_traits<_NodePtr> __traits;
typedef typename __traits::__node __node;
typedef typename __traits::__node_pointer __node_pointer;
typedef typename __traits::__begin_node_pointer __begin_node_pointer;
typedef typename __traits::__iter_node_pointer __iter_node_pointer;
typedef typename __traits::__void_pointer __void_pointer;
__iter_node_pointer __ptr_;
__begin_node_pointer __get_begin() const {
return static_cast<__begin_node_pointer>(
static_cast<__void_pointer>(__ptr_));
}
__node_pointer __get_unsafe_node_pointer() const {
return static_cast<__node_pointer>(
static_cast<__void_pointer>(__ptr_));
}
_LIBCPP_INLINE_VISIBILITY
explicit __forward_list_const_iterator(nullptr_t) _NOEXCEPT
: __ptr_(nullptr) {}
_LIBCPP_INLINE_VISIBILITY
explicit __forward_list_const_iterator(__begin_node_pointer __p) _NOEXCEPT
: __ptr_(__traits::__as_iter_node(__p)) {}
_LIBCPP_INLINE_VISIBILITY
explicit __forward_list_const_iterator(__node_pointer __p) _NOEXCEPT
: __ptr_(__traits::__as_iter_node(__p)) {}
template<class, class> friend class forward_list;
public:
typedef forward_iterator_tag iterator_category;
typedef typename __traits::__node_value_type value_type;
typedef const value_type& reference;
typedef typename pointer_traits<__node_pointer>::difference_type
difference_type;
typedef typename __rebind_pointer<__node_pointer, const value_type>::type
pointer;
_LIBCPP_INLINE_VISIBILITY
__forward_list_const_iterator() _NOEXCEPT : __ptr_(nullptr) {}
_LIBCPP_INLINE_VISIBILITY
__forward_list_const_iterator(__forward_list_iterator<__node_pointer> __p) _NOEXCEPT
: __ptr_(__p.__ptr_) {}
_LIBCPP_INLINE_VISIBILITY
reference operator*() const {return __get_unsafe_node_pointer()->__value_;}
_LIBCPP_INLINE_VISIBILITY
pointer operator->() const {return pointer_traits<pointer>::pointer_to(
__get_unsafe_node_pointer()->__value_);}
_LIBCPP_INLINE_VISIBILITY
__forward_list_const_iterator& operator++()
{
__ptr_ = __traits::__as_iter_node(__ptr_->__next_);
return *this;
}
_LIBCPP_INLINE_VISIBILITY
__forward_list_const_iterator operator++(int)
{
__forward_list_const_iterator __t(*this);
++(*this);
return __t;
}
friend _LIBCPP_INLINE_VISIBILITY
bool operator==(const __forward_list_const_iterator& __x,
const __forward_list_const_iterator& __y)
{return __x.__ptr_ == __y.__ptr_;}
friend _LIBCPP_INLINE_VISIBILITY
bool operator!=(const __forward_list_const_iterator& __x,
const __forward_list_const_iterator& __y)
{return !(__x == __y);}
};
template <class _Tp, class _Alloc>
class __forward_list_base
{
protected:
typedef _Tp value_type;
typedef _Alloc allocator_type;
typedef typename allocator_traits<allocator_type>::void_pointer void_pointer;
typedef __forward_list_node<value_type, void_pointer> __node;
typedef typename __begin_node_of<value_type, void_pointer>::type __begin_node;
typedef typename __rebind_alloc_helper<allocator_traits<allocator_type>, __node>::type __node_allocator;
typedef allocator_traits<__node_allocator> __node_traits;
typedef typename __node_traits::pointer __node_pointer;
typedef typename __rebind_alloc_helper<
allocator_traits<allocator_type>, __begin_node
>::type __begin_node_allocator;
typedef typename allocator_traits<__begin_node_allocator>::pointer
__begin_node_pointer;
__compressed_pair<__begin_node, __node_allocator> __before_begin_;
_LIBCPP_INLINE_VISIBILITY
__begin_node_pointer __before_begin() _NOEXCEPT
{return pointer_traits<__begin_node_pointer>::pointer_to(__before_begin_.first());}
_LIBCPP_INLINE_VISIBILITY
__begin_node_pointer __before_begin() const _NOEXCEPT
{return pointer_traits<__begin_node_pointer>::pointer_to(const_cast<__begin_node&>(__before_begin_.first()));}
_LIBCPP_INLINE_VISIBILITY
__node_allocator& __alloc() _NOEXCEPT
{return __before_begin_.second();}
_LIBCPP_INLINE_VISIBILITY
const __node_allocator& __alloc() const _NOEXCEPT
{return __before_begin_.second();}
typedef __forward_list_iterator<__node_pointer> iterator;
typedef __forward_list_const_iterator<__node_pointer> const_iterator;
_LIBCPP_INLINE_VISIBILITY
__forward_list_base()
_NOEXCEPT_(is_nothrow_default_constructible<__node_allocator>::value)
: __before_begin_(__begin_node()) {}
_LIBCPP_INLINE_VISIBILITY
__forward_list_base(const allocator_type& __a)
: __before_begin_(__begin_node(), __node_allocator(__a)) {}
#ifndef _LIBCPP_CXX03_LANG
public:
_LIBCPP_INLINE_VISIBILITY
__forward_list_base(__forward_list_base&& __x)
_NOEXCEPT_(is_nothrow_move_constructible<__node_allocator>::value);
_LIBCPP_INLINE_VISIBILITY
__forward_list_base(__forward_list_base&& __x, const allocator_type& __a);
#endif // _LIBCPP_CXX03_LANG
private:
__forward_list_base(const __forward_list_base&);
__forward_list_base& operator=(const __forward_list_base&);
public:
~__forward_list_base();
protected:
_LIBCPP_INLINE_VISIBILITY
void __copy_assign_alloc(const __forward_list_base& __x)
{__copy_assign_alloc(__x, integral_constant<bool,
__node_traits::propagate_on_container_copy_assignment::value>());}
_LIBCPP_INLINE_VISIBILITY
void __move_assign_alloc(__forward_list_base& __x)
_NOEXCEPT_(!__node_traits::propagate_on_container_move_assignment::value ||
is_nothrow_move_assignable<__node_allocator>::value)
{__move_assign_alloc(__x, integral_constant<bool,
__node_traits::propagate_on_container_move_assignment::value>());}
public:
_LIBCPP_INLINE_VISIBILITY
void swap(__forward_list_base& __x)
#if _LIBCPP_STD_VER >= 14
_NOEXCEPT;
#else
_NOEXCEPT_(!__node_traits::propagate_on_container_move_assignment::value ||
__is_nothrow_swappable<__node_allocator>::value);
#endif
protected:
void clear() _NOEXCEPT;
private:
_LIBCPP_INLINE_VISIBILITY
void __copy_assign_alloc(const __forward_list_base&, false_type) {}
_LIBCPP_INLINE_VISIBILITY
void __copy_assign_alloc(const __forward_list_base& __x, true_type)
{
if (__alloc() != __x.__alloc())
clear();
__alloc() = __x.__alloc();
}
_LIBCPP_INLINE_VISIBILITY
void __move_assign_alloc(__forward_list_base&, false_type) _NOEXCEPT
{}
_LIBCPP_INLINE_VISIBILITY
void __move_assign_alloc(__forward_list_base& __x, true_type)
_NOEXCEPT_(is_nothrow_move_assignable<__node_allocator>::value)
{__alloc() = _VSTD::move(__x.__alloc());}
};
#ifndef _LIBCPP_CXX03_LANG
template <class _Tp, class _Alloc>
inline
__forward_list_base<_Tp, _Alloc>::__forward_list_base(__forward_list_base&& __x)
_NOEXCEPT_(is_nothrow_move_constructible<__node_allocator>::value)
: __before_begin_(_VSTD::move(__x.__before_begin_))
{
__x.__before_begin()->__next_ = nullptr;
}
template <class _Tp, class _Alloc>
inline
__forward_list_base<_Tp, _Alloc>::__forward_list_base(__forward_list_base&& __x,
const allocator_type& __a)
: __before_begin_(__begin_node(), __node_allocator(__a))
{
if (__alloc() == __x.__alloc())
{
__before_begin()->__next_ = __x.__before_begin()->__next_;
__x.__before_begin()->__next_ = nullptr;
}
}
#endif // _LIBCPP_CXX03_LANG
template <class _Tp, class _Alloc>
__forward_list_base<_Tp, _Alloc>::~__forward_list_base()
{
clear();
}
template <class _Tp, class _Alloc>
inline
void
__forward_list_base<_Tp, _Alloc>::swap(__forward_list_base& __x)
#if _LIBCPP_STD_VER >= 14
_NOEXCEPT
#else
_NOEXCEPT_(!__node_traits::propagate_on_container_move_assignment::value ||
__is_nothrow_swappable<__node_allocator>::value)
#endif
{
__swap_allocator(__alloc(), __x.__alloc(),
integral_constant<bool, __node_traits::propagate_on_container_swap::value>());
using _VSTD::swap;
swap(__before_begin()->__next_, __x.__before_begin()->__next_);
}
template <class _Tp, class _Alloc>
void
__forward_list_base<_Tp, _Alloc>::clear() _NOEXCEPT
{
__node_allocator& __a = __alloc();
for (__node_pointer __p = __before_begin()->__next_; __p != nullptr;)
{
__node_pointer __next = __p->__next_;
__node_traits::destroy(__a, _VSTD::addressof(__p->__value_));
__node_traits::deallocate(__a, __p, 1);
__p = __next;
}
__before_begin()->__next_ = nullptr;
}
template <class _Tp, class _Alloc /*= allocator<_Tp>*/>
class _LIBCPP_TEMPLATE_VIS forward_list
: private __forward_list_base<_Tp, _Alloc>
{
typedef __forward_list_base<_Tp, _Alloc> base;
typedef typename base::__node_allocator __node_allocator;
typedef typename base::__node __node;
typedef typename base::__node_traits __node_traits;
typedef typename base::__node_pointer __node_pointer;
typedef typename base::__begin_node_pointer __begin_node_pointer;
public:
typedef _Tp value_type;
typedef _Alloc allocator_type;
static_assert((is_same<typename allocator_type::value_type, value_type>::value),
"Allocator::value_type must be same type as value_type");
typedef value_type& reference;
typedef const value_type& const_reference;
typedef typename allocator_traits<allocator_type>::pointer pointer;
typedef typename allocator_traits<allocator_type>::const_pointer const_pointer;
typedef typename allocator_traits<allocator_type>::size_type size_type;
typedef typename allocator_traits<allocator_type>::difference_type difference_type;
typedef typename base::iterator iterator;
typedef typename base::const_iterator const_iterator;
_LIBCPP_INLINE_VISIBILITY
forward_list()
_NOEXCEPT_(is_nothrow_default_constructible<__node_allocator>::value)
{} // = default;
_LIBCPP_INLINE_VISIBILITY
explicit forward_list(const allocator_type& __a);
explicit forward_list(size_type __n);
#if _LIBCPP_STD_VER > 11
explicit forward_list(size_type __n, const allocator_type& __a);
#endif
forward_list(size_type __n, const value_type& __v);
forward_list(size_type __n, const value_type& __v, const allocator_type& __a);
template <class _InputIterator>
forward_list(_InputIterator __f, _InputIterator __l,
typename enable_if<
__is_input_iterator<_InputIterator>::value
>::type* = nullptr);
template <class _InputIterator>
forward_list(_InputIterator __f, _InputIterator __l,
const allocator_type& __a,
typename enable_if<
__is_input_iterator<_InputIterator>::value
>::type* = nullptr);
forward_list(const forward_list& __x);
forward_list(const forward_list& __x, const allocator_type& __a);
forward_list& operator=(const forward_list& __x);
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
forward_list(forward_list&& __x)
_NOEXCEPT_(is_nothrow_move_constructible<base>::value)
: base(_VSTD::move(__x)) {}
forward_list(forward_list&& __x, const allocator_type& __a);
forward_list(initializer_list<value_type> __il);
forward_list(initializer_list<value_type> __il, const allocator_type& __a);
_LIBCPP_INLINE_VISIBILITY
forward_list& operator=(forward_list&& __x)
_NOEXCEPT_(
__node_traits::propagate_on_container_move_assignment::value &&
is_nothrow_move_assignable<allocator_type>::value);
_LIBCPP_INLINE_VISIBILITY
forward_list& operator=(initializer_list<value_type> __il);
_LIBCPP_INLINE_VISIBILITY
void assign(initializer_list<value_type> __il);
#endif // _LIBCPP_CXX03_LANG
// ~forward_list() = default;
template <class _InputIterator>
typename enable_if
<
__is_input_iterator<_InputIterator>::value,
void
>::type
assign(_InputIterator __f, _InputIterator __l);
void assign(size_type __n, const value_type& __v);
_LIBCPP_INLINE_VISIBILITY
allocator_type get_allocator() const _NOEXCEPT
{return allocator_type(base::__alloc());}
_LIBCPP_INLINE_VISIBILITY
iterator begin() _NOEXCEPT
{return iterator(base::__before_begin()->__next_);}
_LIBCPP_INLINE_VISIBILITY
const_iterator begin() const _NOEXCEPT
{return const_iterator(base::__before_begin()->__next_);}
_LIBCPP_INLINE_VISIBILITY
iterator end() _NOEXCEPT
{return iterator(nullptr);}
_LIBCPP_INLINE_VISIBILITY
const_iterator end() const _NOEXCEPT
{return const_iterator(nullptr);}
_LIBCPP_INLINE_VISIBILITY
const_iterator cbegin() const _NOEXCEPT
{return const_iterator(base::__before_begin()->__next_);}
_LIBCPP_INLINE_VISIBILITY
const_iterator cend() const _NOEXCEPT
{return const_iterator(nullptr);}
_LIBCPP_INLINE_VISIBILITY
iterator before_begin() _NOEXCEPT
{return iterator(base::__before_begin());}
_LIBCPP_INLINE_VISIBILITY
const_iterator before_begin() const _NOEXCEPT
{return const_iterator(base::__before_begin());}
_LIBCPP_INLINE_VISIBILITY
const_iterator cbefore_begin() const _NOEXCEPT
{return const_iterator(base::__before_begin());}
_LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY
bool empty() const _NOEXCEPT
{return base::__before_begin()->__next_ == nullptr;}
_LIBCPP_INLINE_VISIBILITY
size_type max_size() const _NOEXCEPT {
return std::min<size_type>(
__node_traits::max_size(base::__alloc()),
numeric_limits<difference_type>::max());
}
_LIBCPP_INLINE_VISIBILITY
reference front() {return base::__before_begin()->__next_->__value_;}
_LIBCPP_INLINE_VISIBILITY
const_reference front() const {return base::__before_begin()->__next_->__value_;}
#ifndef _LIBCPP_CXX03_LANG
#if _LIBCPP_STD_VER > 14
template <class... _Args> reference emplace_front(_Args&&... __args);
#else
template <class... _Args> void emplace_front(_Args&&... __args);
#endif
void push_front(value_type&& __v);
#endif // _LIBCPP_CXX03_LANG
void push_front(const value_type& __v);
void pop_front();
#ifndef _LIBCPP_CXX03_LANG
template <class... _Args>
iterator emplace_after(const_iterator __p, _Args&&... __args);
iterator insert_after(const_iterator __p, value_type&& __v);
iterator insert_after(const_iterator __p, initializer_list<value_type> __il)
{return insert_after(__p, __il.begin(), __il.end());}
#endif // _LIBCPP_CXX03_LANG
iterator insert_after(const_iterator __p, const value_type& __v);
iterator insert_after(const_iterator __p, size_type __n, const value_type& __v);
template <class _InputIterator>
_LIBCPP_INLINE_VISIBILITY
typename enable_if
<
__is_input_iterator<_InputIterator>::value,
iterator
>::type
insert_after(const_iterator __p, _InputIterator __f, _InputIterator __l);
iterator erase_after(const_iterator __p);
iterator erase_after(const_iterator __f, const_iterator __l);
_LIBCPP_INLINE_VISIBILITY
void swap(forward_list& __x)
#if _LIBCPP_STD_VER >= 14
_NOEXCEPT
#else
_NOEXCEPT_(!__node_traits::propagate_on_container_swap::value ||
__is_nothrow_swappable<__node_allocator>::value)
#endif
{base::swap(__x);}
void resize(size_type __n);
void resize(size_type __n, const value_type& __v);
_LIBCPP_INLINE_VISIBILITY
void clear() _NOEXCEPT {base::clear();}
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
void splice_after(const_iterator __p, forward_list&& __x);
_LIBCPP_INLINE_VISIBILITY
void splice_after(const_iterator __p, forward_list&& __x, const_iterator __i);
_LIBCPP_INLINE_VISIBILITY
void splice_after(const_iterator __p, forward_list&& __x,
const_iterator __f, const_iterator __l);
#endif // _LIBCPP_CXX03_LANG
void splice_after(const_iterator __p, forward_list& __x);
void splice_after(const_iterator __p, forward_list& __x, const_iterator __i);
void splice_after(const_iterator __p, forward_list& __x,
const_iterator __f, const_iterator __l);
void remove(const value_type& __v);
template <class _Predicate> void remove_if(_Predicate __pred);
_LIBCPP_INLINE_VISIBILITY
void unique() {unique(__equal_to<value_type>());}
template <class _BinaryPredicate> void unique(_BinaryPredicate __binary_pred);
#ifndef _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
void merge(forward_list&& __x) {merge(__x, __less<value_type>());}
template <class _Compare>
_LIBCPP_INLINE_VISIBILITY
void merge(forward_list&& __x, _Compare __comp)
{merge(__x, _VSTD::move(__comp));}
#endif // _LIBCPP_CXX03_LANG
_LIBCPP_INLINE_VISIBILITY
void merge(forward_list& __x) {merge(__x, __less<value_type>());}
template <class _Compare> void merge(forward_list& __x, _Compare __comp);
_LIBCPP_INLINE_VISIBILITY
void sort() {sort(__less<value_type>());}
template <class _Compare> _LIBCPP_INLINE_VISIBILITY void sort(_Compare __comp);
void reverse() _NOEXCEPT;
private:
#ifndef _LIBCPP_CXX03_LANG
void __move_assign(forward_list& __x, true_type)
_NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value);
void __move_assign(forward_list& __x, false_type);
#endif // _LIBCPP_CXX03_LANG
template <class _Compare>
static
__node_pointer
__merge(__node_pointer __f1, __node_pointer __f2, _Compare& __comp);
template <class _Compare>
static
__node_pointer
__sort(__node_pointer __f, difference_type __sz, _Compare& __comp);
};
template <class _Tp, class _Alloc>
inline
forward_list<_Tp, _Alloc>::forward_list(const allocator_type& __a)
: base(__a)
{
}
template <class _Tp, class _Alloc>
forward_list<_Tp, _Alloc>::forward_list(size_type __n)
{
if (__n > 0)
{
__node_allocator& __a = base::__alloc();
typedef __allocator_destructor<__node_allocator> _Dp;
unique_ptr<__node, _Dp> __h(nullptr, _Dp(__a, 1));
for (__begin_node_pointer __p = base::__before_begin(); __n > 0; --__n,
__p = __p->__next_as_begin())
{
__h.reset(__node_traits::allocate(__a, 1));
__node_traits::construct(__a, _VSTD::addressof(__h->__value_));
__h->__next_ = nullptr;
__p->__next_ = __h.release();
}
}
}
#if _LIBCPP_STD_VER > 11
template <class _Tp, class _Alloc>
forward_list<_Tp, _Alloc>::forward_list(size_type __n,
const allocator_type& __base_alloc)
: base ( __base_alloc )
{
if (__n > 0)
{
__node_allocator& __a = base::__alloc();
typedef __allocator_destructor<__node_allocator> _Dp;
unique_ptr<__node, _Dp> __h(nullptr, _Dp(__a, 1));
for (__begin_node_pointer __p = base::__before_begin(); __n > 0; --__n,
__p = __p->__next_as_begin())
{
__h.reset(__node_traits::allocate(__a, 1));
__node_traits::construct(__a, _VSTD::addressof(__h->__value_));
__h->__next_ = nullptr;
__p->__next_ = __h.release();
}
}
}
#endif
template <class _Tp, class _Alloc>
forward_list<_Tp, _Alloc>::forward_list(size_type __n, const value_type& __v)
{
insert_after(cbefore_begin(), __n, __v);
}
template <class _Tp, class _Alloc>
forward_list<_Tp, _Alloc>::forward_list(size_type __n, const value_type& __v,
const allocator_type& __a)
: base(__a)
{
insert_after(cbefore_begin(), __n, __v);
}
template <class _Tp, class _Alloc>
template <class _InputIterator>
forward_list<_Tp, _Alloc>::forward_list(_InputIterator __f, _InputIterator __l,
typename enable_if<
__is_input_iterator<_InputIterator>::value
>::type*)
{
insert_after(cbefore_begin(), __f, __l);
}
template <class _Tp, class _Alloc>
template <class _InputIterator>
forward_list<_Tp, _Alloc>::forward_list(_InputIterator __f, _InputIterator __l,
const allocator_type& __a,
typename enable_if<
__is_input_iterator<_InputIterator>::value
>::type*)
: base(__a)
{
insert_after(cbefore_begin(), __f, __l);
}
template <class _Tp, class _Alloc>
forward_list<_Tp, _Alloc>::forward_list(const forward_list& __x)
: base(allocator_type(
__node_traits::select_on_container_copy_construction(__x.__alloc())
)
)
{
insert_after(cbefore_begin(), __x.begin(), __x.end());
}
template <class _Tp, class _Alloc>
forward_list<_Tp, _Alloc>::forward_list(const forward_list& __x,
const allocator_type& __a)
: base(__a)
{
insert_after(cbefore_begin(), __x.begin(), __x.end());
}
template <class _Tp, class _Alloc>
forward_list<_Tp, _Alloc>&
forward_list<_Tp, _Alloc>::operator=(const forward_list& __x)
{
if (this != &__x)
{
base::__copy_assign_alloc(__x);
assign(__x.begin(), __x.end());
}
return *this;
}
#ifndef _LIBCPP_CXX03_LANG
template <class _Tp, class _Alloc>
forward_list<_Tp, _Alloc>::forward_list(forward_list&& __x,
const allocator_type& __a)
: base(_VSTD::move(__x), __a)
{
if (base::__alloc() != __x.__alloc())
{
typedef move_iterator<iterator> _Ip;
insert_after(cbefore_begin(), _Ip(__x.begin()), _Ip(__x.end()));
}
}
template <class _Tp, class _Alloc>
forward_list<_Tp, _Alloc>::forward_list(initializer_list<value_type> __il)
{
insert_after(cbefore_begin(), __il.begin(), __il.end());
}
template <class _Tp, class _Alloc>
forward_list<_Tp, _Alloc>::forward_list(initializer_list<value_type> __il,
const allocator_type& __a)
: base(__a)
{
insert_after(cbefore_begin(), __il.begin(), __il.end());
}
template <class _Tp, class _Alloc>
void
forward_list<_Tp, _Alloc>::__move_assign(forward_list& __x, true_type)
_NOEXCEPT_(is_nothrow_move_assignable<allocator_type>::value)
{
clear();
base::__move_assign_alloc(__x);
base::__before_begin()->__next_ = __x.__before_begin()->__next_;
__x.__before_begin()->__next_ = nullptr;
}
template <class _Tp, class _Alloc>
void
forward_list<_Tp, _Alloc>::__move_assign(forward_list& __x, false_type)
{
if (base::__alloc() == __x.__alloc())
__move_assign(__x, true_type());
else
{
typedef move_iterator<iterator> _Ip;
assign(_Ip(__x.begin()), _Ip(__x.end()));
}
}
template <class _Tp, class _Alloc>
inline
forward_list<_Tp, _Alloc>&
forward_list<_Tp, _Alloc>::operator=(forward_list&& __x)
_NOEXCEPT_(
__node_traits::propagate_on_container_move_assignment::value &&
is_nothrow_move_assignable<allocator_type>::value)
{
__move_assign(__x, integral_constant<bool,
__node_traits::propagate_on_container_move_assignment::value>());
return *this;
}
template <class _Tp, class _Alloc>
inline
forward_list<_Tp, _Alloc>&
forward_list<_Tp, _Alloc>::operator=(initializer_list<value_type> __il)
{
assign(__il.begin(), __il.end());
return *this;
}
#endif // _LIBCPP_CXX03_LANG
template <class _Tp, class _Alloc>
template <class _InputIterator>
typename enable_if
<
__is_input_iterator<_InputIterator>::value,
void
>::type
forward_list<_Tp, _Alloc>::assign(_InputIterator __f, _InputIterator __l)
{
iterator __i = before_begin();
iterator __j = _VSTD::next(__i);
iterator __e = end();
for (; __j != __e && __f != __l; ++__i, (void) ++__j, ++__f)
*__j = *__f;
if (__j == __e)
insert_after(__i, __f, __l);
else
erase_after(__i, __e);
}
template <class _Tp, class _Alloc>
void
forward_list<_Tp, _Alloc>::assign(size_type __n, const value_type& __v)
{
iterator __i = before_begin();
iterator __j = _VSTD::next(__i);
iterator __e = end();
for (; __j != __e && __n > 0; --__n, ++__i, ++__j)
*__j = __v;
if (__j == __e)
insert_after(__i, __n, __v);
else
erase_after(__i, __e);
}
#ifndef _LIBCPP_CXX03_LANG
template <class _Tp, class _Alloc>
inline
void
forward_list<_Tp, _Alloc>::assign(initializer_list<value_type> __il)
{
assign(__il.begin(), __il.end());
}
template <class _Tp, class _Alloc>
template <class... _Args>
#if _LIBCPP_STD_VER > 14
typename forward_list<_Tp, _Alloc>::reference
#else
void
#endif
forward_list<_Tp, _Alloc>::emplace_front(_Args&&... __args)
{
__node_allocator& __a = base::__alloc();
typedef __allocator_destructor<__node_allocator> _Dp;
unique_ptr<__node, _Dp> __h(__node_traits::allocate(__a, 1), _Dp(__a, 1));
__node_traits::construct(__a, _VSTD::addressof(__h->__value_),
_VSTD::forward<_Args>(__args)...);
__h->__next_ = base::__before_begin()->__next_;
base::__before_begin()->__next_ = __h.release();
#if _LIBCPP_STD_VER > 14
return base::__before_begin()->__next_->__value_;
#endif
}
template <class _Tp, class _Alloc>
void
forward_list<_Tp, _Alloc>::push_front(value_type&& __v)
{
__node_allocator& __a = base::__alloc();
typedef __allocator_destructor<__node_allocator> _Dp;
unique_ptr<__node, _Dp> __h(__node_traits::allocate(__a, 1), _Dp(__a, 1));
__node_traits::construct(__a, _VSTD::addressof(__h->__value_), _VSTD::move(__v));
__h->__next_ = base::__before_begin()->__next_;
base::__before_begin()->__next_ = __h.release();
}
#endif // _LIBCPP_CXX03_LANG
template <class _Tp, class _Alloc>
void
forward_list<_Tp, _Alloc>::push_front(const value_type& __v)
{
__node_allocator& __a = base::__alloc();
typedef __allocator_destructor<__node_allocator> _Dp;
unique_ptr<__node, _Dp> __h(__node_traits::allocate(__a, 1), _Dp(__a, 1));
__node_traits::construct(__a, _VSTD::addressof(__h->__value_), __v);
__h->__next_ = base::__before_begin()->__next_;
base::__before_begin()->__next_ = __h.release();
}
template <class _Tp, class _Alloc>
void
forward_list<_Tp, _Alloc>::pop_front()
{
__node_allocator& __a = base::__alloc();
__node_pointer __p = base::__before_begin()->__next_;
base::__before_begin()->__next_ = __p->__next_;
__node_traits::destroy(__a, _VSTD::addressof(__p->__value_));
__node_traits::deallocate(__a, __p, 1);
}
#ifndef _LIBCPP_CXX03_LANG
template <class _Tp, class _Alloc>
template <class... _Args>
typename forward_list<_Tp, _Alloc>::iterator
forward_list<_Tp, _Alloc>::emplace_after(const_iterator __p, _Args&&... __args)
{
__begin_node_pointer const __r = __p.__get_begin();
__node_allocator& __a = base::__alloc();
typedef __allocator_destructor<__node_allocator> _Dp;
unique_ptr<__node, _Dp> __h(__node_traits::allocate(__a, 1), _Dp(__a, 1));
__node_traits::construct(__a, _VSTD::addressof(__h->__value_),
_VSTD::forward<_Args>(__args)...);
__h->__next_ = __r->__next_;
__r->__next_ = __h.release();
return iterator(__r->__next_);
}
template <class _Tp, class _Alloc>
typename forward_list<_Tp, _Alloc>::iterator
forward_list<_Tp, _Alloc>::insert_after(const_iterator __p, value_type&& __v)
{
__begin_node_pointer const __r = __p.__get_begin();
__node_allocator& __a = base::__alloc();
typedef __allocator_destructor<__node_allocator> _Dp;
unique_ptr<__node, _Dp> __h(__node_traits::allocate(__a, 1), _Dp(__a, 1));
__node_traits::construct(__a, _VSTD::addressof(__h->__value_), _VSTD::move(__v));
__h->__next_ = __r->__next_;
__r->__next_ = __h.release();
return iterator(__r->__next_);
}
#endif // _LIBCPP_CXX03_LANG
template <class _Tp, class _Alloc>
typename forward_list<_Tp, _Alloc>::iterator
forward_list<_Tp, _Alloc>::insert_after(const_iterator __p, const value_type& __v)
{
__begin_node_pointer const __r = __p.__get_begin();
__node_allocator& __a = base::__alloc();
typedef __allocator_destructor<__node_allocator> _Dp;
unique_ptr<__node, _Dp> __h(__node_traits::allocate(__a, 1), _Dp(__a, 1));
__node_traits::construct(__a, _VSTD::addressof(__h->__value_), __v);
__h->__next_ = __r->__next_;
__r->__next_ = __h.release();
return iterator(__r->__next_);
}
template <class _Tp, class _Alloc>
typename forward_list<_Tp, _Alloc>::iterator
forward_list<_Tp, _Alloc>::insert_after(const_iterator __p, size_type __n,
const value_type& __v)
{
__begin_node_pointer __r = __p.__get_begin();
if (__n > 0)
{
__node_allocator& __a = base::__alloc();
typedef __allocator_destructor<__node_allocator> _Dp;
unique_ptr<__node, _Dp> __h(__node_traits::allocate(__a, 1), _Dp(__a, 1));
__node_traits::construct(__a, _VSTD::addressof(__h->__value_), __v);
__node_pointer __first = __h.release();
__node_pointer __last = __first;
#ifndef _LIBCPP_NO_EXCEPTIONS
try
{
#endif // _LIBCPP_NO_EXCEPTIONS
for (--__n; __n != 0; --__n, __last = __last->__next_)
{
__h.reset(__node_traits::allocate(__a, 1));
__node_traits::construct(__a, _VSTD::addressof(__h->__value_), __v);
__last->__next_ = __h.release();
}
#ifndef _LIBCPP_NO_EXCEPTIONS
}
catch (...)
{
while (__first != nullptr)
{
__node_pointer __next = __first->__next_;
__node_traits::destroy(__a, _VSTD::addressof(__first->__value_));
__node_traits::deallocate(__a, __first, 1);
__first = __next;
}
throw;
}
#endif // _LIBCPP_NO_EXCEPTIONS
__last->__next_ = __r->__next_;
__r->__next_ = __first;
__r = static_cast<__begin_node_pointer>(__last);
}
return iterator(__r);
}
template <class _Tp, class _Alloc>
template <class _InputIterator>
typename enable_if
<
__is_input_iterator<_InputIterator>::value,
typename forward_list<_Tp, _Alloc>::iterator
>::type
forward_list<_Tp, _Alloc>::insert_after(const_iterator __p,
_InputIterator __f, _InputIterator __l)
{
__begin_node_pointer __r = __p.__get_begin();
if (__f != __l)
{
__node_allocator& __a = base::__alloc();
typedef __allocator_destructor<__node_allocator> _Dp;
unique_ptr<__node, _Dp> __h(__node_traits::allocate(__a, 1), _Dp(__a, 1));
__node_traits::construct(__a, _VSTD::addressof(__h->__value_), *__f);
__node_pointer __first = __h.release();
__node_pointer __last = __first;
#ifndef _LIBCPP_NO_EXCEPTIONS
try
{
#endif // _LIBCPP_NO_EXCEPTIONS
for (++__f; __f != __l; ++__f, ((void)(__last = __last->__next_)))
{
__h.reset(__node_traits::allocate(__a, 1));
__node_traits::construct(__a, _VSTD::addressof(__h->__value_), *__f);
__last->__next_ = __h.release();
}
#ifndef _LIBCPP_NO_EXCEPTIONS
}
catch (...)
{
while (__first != nullptr)
{
__node_pointer __next = __first->__next_;
__node_traits::destroy(__a, _VSTD::addressof(__first->__value_));
__node_traits::deallocate(__a, __first, 1);
__first = __next;
}
throw;
}
#endif // _LIBCPP_NO_EXCEPTIONS
__last->__next_ = __r->__next_;
__r->__next_ = __first;
__r = static_cast<__begin_node_pointer>(__last);
}
return iterator(__r);
}
template <class _Tp, class _Alloc>
typename forward_list<_Tp, _Alloc>::iterator
forward_list<_Tp, _Alloc>::erase_after(const_iterator __f)
{
__begin_node_pointer __p = __f.__get_begin();
__node_pointer __n = __p->__next_;
__p->__next_ = __n->__next_;
__node_allocator& __a = base::__alloc();
__node_traits::destroy(__a, _VSTD::addressof(__n->__value_));
__node_traits::deallocate(__a, __n, 1);
return iterator(__p->__next_);
}
template <class _Tp, class _Alloc>
typename forward_list<_Tp, _Alloc>::iterator
forward_list<_Tp, _Alloc>::erase_after(const_iterator __f, const_iterator __l)
{
__node_pointer __e = __l.__get_unsafe_node_pointer();
if (__f != __l)
{
__begin_node_pointer __bp = __f.__get_begin();
__node_pointer __n = __bp->__next_;
if (__n != __e)
{
__bp->__next_ = __e;
__node_allocator& __a = base::__alloc();
do
{
__node_pointer __tmp = __n->__next_;
__node_traits::destroy(__a, _VSTD::addressof(__n->__value_));
__node_traits::deallocate(__a, __n, 1);
__n = __tmp;
} while (__n != __e);
}
}
return iterator(__e);
}
template <class _Tp, class _Alloc>
void
forward_list<_Tp, _Alloc>::resize(size_type __n)
{
size_type __sz = 0;
iterator __p = before_begin();
iterator __i = begin();
iterator __e = end();
for (; __i != __e && __sz < __n; ++__p, ++__i, ++__sz)
;
if (__i != __e)
erase_after(__p, __e);
else
{
__n -= __sz;
if (__n > 0)
{
__node_allocator& __a = base::__alloc();
typedef __allocator_destructor<__node_allocator> _Dp;
unique_ptr<__node, _Dp> __h(nullptr, _Dp(__a, 1));
for (__begin_node_pointer __ptr = __p.__get_begin(); __n > 0; --__n,
__ptr = __ptr->__next_as_begin())
{
__h.reset(__node_traits::allocate(__a, 1));
__node_traits::construct(__a, _VSTD::addressof(__h->__value_));
__h->__next_ = nullptr;
__ptr->__next_ = __h.release();
}
}
}
}
template <class _Tp, class _Alloc>
void
forward_list<_Tp, _Alloc>::resize(size_type __n, const value_type& __v)
{
size_type __sz = 0;
iterator __p = before_begin();
iterator __i = begin();
iterator __e = end();
for (; __i != __e && __sz < __n; ++__p, ++__i, ++__sz)
;
if (__i != __e)
erase_after(__p, __e);
else
{
__n -= __sz;
if (__n > 0)
{
__node_allocator& __a = base::__alloc();
typedef __allocator_destructor<__node_allocator> _Dp;
unique_ptr<__node, _Dp> __h(nullptr, _Dp(__a, 1));
for (__begin_node_pointer __ptr = __p.__get_begin(); __n > 0; --__n,
__ptr = __ptr->__next_as_begin())
{
__h.reset(__node_traits::allocate(__a, 1));
__node_traits::construct(__a, _VSTD::addressof(__h->__value_), __v);
__h->__next_ = nullptr;
__ptr->__next_ = __h.release();
}
}
}
}
template <class _Tp, class _Alloc>
void
forward_list<_Tp, _Alloc>::splice_after(const_iterator __p,
forward_list& __x)
{
if (!__x.empty())
{
if (__p.__get_begin()->__next_ != nullptr)
{
const_iterator __lm1 = __x.before_begin();
while (__lm1.__get_begin()->__next_ != nullptr)
++__lm1;
__lm1.__get_begin()->__next_ = __p.__get_begin()->__next_;
}
__p.__get_begin()->__next_ = __x.__before_begin()->__next_;
__x.__before_begin()->__next_ = nullptr;
}
}
template <class _Tp, class _Alloc>
void
forward_list<_Tp, _Alloc>::splice_after(const_iterator __p,
forward_list& /*__other*/,
const_iterator __i)
{
const_iterator __lm1 = _VSTD::next(__i);
if (__p != __i && __p != __lm1)
{
__i.__get_begin()->__next_ = __lm1.__get_begin()->__next_;
__lm1.__get_begin()->__next_ = __p.__get_begin()->__next_;
__p.__get_begin()->__next_ = __lm1.__get_unsafe_node_pointer();
}
}
template <class _Tp, class _Alloc>
void
forward_list<_Tp, _Alloc>::splice_after(const_iterator __p,
forward_list& /*__other*/,
const_iterator __f, const_iterator __l)
{
if (__f != __l && __p != __f)
{
const_iterator __lm1 = __f;
while (__lm1.__get_begin()->__next_ != __l.__get_begin())
++__lm1;
if (__f != __lm1)
{
__lm1.__get_begin()->__next_ = __p.__get_begin()->__next_;
__p.__get_begin()->__next_ = __f.__get_begin()->__next_;
__f.__get_begin()->__next_ = __l.__get_unsafe_node_pointer();
}
}
}
#ifndef _LIBCPP_CXX03_LANG
template <class _Tp, class _Alloc>
inline _LIBCPP_INLINE_VISIBILITY
void
forward_list<_Tp, _Alloc>::splice_after(const_iterator __p,
forward_list&& __x)
{
splice_after(__p, __x);
}
template <class _Tp, class _Alloc>
inline _LIBCPP_INLINE_VISIBILITY
void
forward_list<_Tp, _Alloc>::splice_after(const_iterator __p,
forward_list&& __x,
const_iterator __i)
{
splice_after(__p, __x, __i);
}
template <class _Tp, class _Alloc>
inline _LIBCPP_INLINE_VISIBILITY
void
forward_list<_Tp, _Alloc>::splice_after(const_iterator __p,
forward_list&& __x,
const_iterator __f, const_iterator __l)
{
splice_after(__p, __x, __f, __l);
}
#endif // _LIBCPP_CXX03_LANG
template <class _Tp, class _Alloc>
void
forward_list<_Tp, _Alloc>::remove(const value_type& __v)
{
forward_list<_Tp, _Alloc> __deleted_nodes; // collect the nodes we're removing
iterator __e = end();
for (iterator __i = before_begin(); __i.__get_begin()->__next_ != nullptr;)
{
if (__i.__get_begin()->__next_->__value_ == __v)
{
iterator __j = _VSTD::next(__i, 2);
for (; __j != __e && *__j == __v; ++__j)
;
__deleted_nodes.splice_after(__deleted_nodes.before_begin(), *this, __i, __j);
if (__j == __e)
break;
__i = __j;
}
else
++__i;
}
}
template <class _Tp, class _Alloc>
template <class _Predicate>
void
forward_list<_Tp, _Alloc>::remove_if(_Predicate __pred)
{
iterator __e = end();
for (iterator __i = before_begin(); __i.__get_begin()->__next_ != nullptr;)
{
if (__pred(__i.__get_begin()->__next_->__value_))
{
iterator __j = _VSTD::next(__i, 2);
for (; __j != __e && __pred(*__j); ++__j)
;
erase_after(__i, __j);
if (__j == __e)
break;
__i = __j;
}
else
++__i;
}
}
template <class _Tp, class _Alloc>
template <class _BinaryPredicate>
void
forward_list<_Tp, _Alloc>::unique(_BinaryPredicate __binary_pred)
{
for (iterator __i = begin(), __e = end(); __i != __e;)
{
iterator __j = _VSTD::next(__i);
for (; __j != __e && __binary_pred(*__i, *__j); ++__j)
;
if (__i.__get_begin()->__next_ != __j.__get_unsafe_node_pointer())
erase_after(__i, __j);
__i = __j;
}
}
template <class _Tp, class _Alloc>
template <class _Compare>
void
forward_list<_Tp, _Alloc>::merge(forward_list& __x, _Compare __comp)
{
if (this != &__x)
{
base::__before_begin()->__next_ = __merge(base::__before_begin()->__next_,
__x.__before_begin()->__next_,
__comp);
__x.__before_begin()->__next_ = nullptr;
}
}
template <class _Tp, class _Alloc>
template <class _Compare>
typename forward_list<_Tp, _Alloc>::__node_pointer
forward_list<_Tp, _Alloc>::__merge(__node_pointer __f1, __node_pointer __f2,
_Compare& __comp)
{
if (__f1 == nullptr)
return __f2;
if (__f2 == nullptr)
return __f1;
__node_pointer __r;
if (__comp(__f2->__value_, __f1->__value_))
{
__node_pointer __t = __f2;
while (__t->__next_ != nullptr &&
__comp(__t->__next_->__value_, __f1->__value_))
__t = __t->__next_;
__r = __f2;
__f2 = __t->__next_;
__t->__next_ = __f1;
}
else
__r = __f1;
__node_pointer __p = __f1;
__f1 = __f1->__next_;
while (__f1 != nullptr && __f2 != nullptr)
{
if (__comp(__f2->__value_, __f1->__value_))
{
__node_pointer __t = __f2;
while (__t->__next_ != nullptr &&
__comp(__t->__next_->__value_, __f1->__value_))
__t = __t->__next_;
__p->__next_ = __f2;
__f2 = __t->__next_;
__t->__next_ = __f1;
}
__p = __f1;
__f1 = __f1->__next_;
}
if (__f2 != nullptr)
__p->__next_ = __f2;
return __r;
}
template <class _Tp, class _Alloc>
template <class _Compare>
inline
void
forward_list<_Tp, _Alloc>::sort(_Compare __comp)
{
base::__before_begin()->__next_ = __sort(base::__before_begin()->__next_,
_VSTD::distance(begin(), end()), __comp);
}
template <class _Tp, class _Alloc>
template <class _Compare>
typename forward_list<_Tp, _Alloc>::__node_pointer
forward_list<_Tp, _Alloc>::__sort(__node_pointer __f1, difference_type __sz,
_Compare& __comp)
{
switch (__sz)
{
case 0:
case 1:
return __f1;
case 2:
if (__comp(__f1->__next_->__value_, __f1->__value_))
{
__node_pointer __t = __f1->__next_;
__t->__next_ = __f1;
__f1->__next_ = nullptr;
__f1 = __t;
}
return __f1;
}
difference_type __sz1 = __sz / 2;
difference_type __sz2 = __sz - __sz1;
__node_pointer __t = _VSTD::next(iterator(__f1), __sz1 - 1).__get_unsafe_node_pointer();
__node_pointer __f2 = __t->__next_;
__t->__next_ = nullptr;
return __merge(__sort(__f1, __sz1, __comp),
__sort(__f2, __sz2, __comp), __comp);
}
template <class _Tp, class _Alloc>
void
forward_list<_Tp, _Alloc>::reverse() _NOEXCEPT
{
__node_pointer __p = base::__before_begin()->__next_;
if (__p != nullptr)
{
__node_pointer __f = __p->__next_;
__p->__next_ = nullptr;
while (__f != nullptr)
{
__node_pointer __t = __f->__next_;
__f->__next_ = __p;
__p = __f;
__f = __t;
}
base::__before_begin()->__next_ = __p;
}
}
template <class _Tp, class _Alloc>
bool operator==(const forward_list<_Tp, _Alloc>& __x,
const forward_list<_Tp, _Alloc>& __y)
{
typedef forward_list<_Tp, _Alloc> _Cp;
typedef typename _Cp::const_iterator _Ip;
_Ip __ix = __x.begin();
_Ip __ex = __x.end();
_Ip __iy = __y.begin();
_Ip __ey = __y.end();
for (; __ix != __ex && __iy != __ey; ++__ix, ++__iy)
if (!(*__ix == *__iy))
return false;
return (__ix == __ex) == (__iy == __ey);
}
template <class _Tp, class _Alloc>
inline _LIBCPP_INLINE_VISIBILITY
bool operator!=(const forward_list<_Tp, _Alloc>& __x,
const forward_list<_Tp, _Alloc>& __y)
{
return !(__x == __y);
}
template <class _Tp, class _Alloc>
inline _LIBCPP_INLINE_VISIBILITY
bool operator< (const forward_list<_Tp, _Alloc>& __x,
const forward_list<_Tp, _Alloc>& __y)
{
return _VSTD::lexicographical_compare(__x.begin(), __x.end(),
__y.begin(), __y.end());
}
template <class _Tp, class _Alloc>
inline _LIBCPP_INLINE_VISIBILITY
bool operator> (const forward_list<_Tp, _Alloc>& __x,
const forward_list<_Tp, _Alloc>& __y)
{
return __y < __x;
}
template <class _Tp, class _Alloc>
inline _LIBCPP_INLINE_VISIBILITY
bool operator>=(const forward_list<_Tp, _Alloc>& __x,
const forward_list<_Tp, _Alloc>& __y)
{
return !(__x < __y);
}
template <class _Tp, class _Alloc>
inline _LIBCPP_INLINE_VISIBILITY
bool operator<=(const forward_list<_Tp, _Alloc>& __x,
const forward_list<_Tp, _Alloc>& __y)
{
return !(__y < __x);
}
template <class _Tp, class _Alloc>
inline _LIBCPP_INLINE_VISIBILITY
void
swap(forward_list<_Tp, _Alloc>& __x, forward_list<_Tp, _Alloc>& __y)
_NOEXCEPT_(_NOEXCEPT_(__x.swap(__y)))
{
__x.swap(__y);
}
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP_FORWARD_LIST
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