1769 lines
60 KiB
C++
1769 lines
60 KiB
C++
// -*- C++ -*-
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//===----------------------- forward_list ---------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP_FORWARD_LIST
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#define _LIBCPP_FORWARD_LIST
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/*
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forward_list synopsis
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namespace std
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{
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template <class T, class Allocator = allocator<T>>
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class forward_list
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{
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public:
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typedef T value_type;
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typedef Allocator allocator_type;
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typedef value_type& reference;
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typedef const value_type& const_reference;
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typedef typename allocator_traits<allocator_type>::pointer pointer;
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typedef typename allocator_traits<allocator_type>::const_pointer const_pointer;
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typedef typename allocator_traits<allocator_type>::size_type size_type;
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typedef typename allocator_traits<allocator_type>::difference_type difference_type;
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typedef <details> iterator;
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typedef <details> const_iterator;
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forward_list()
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noexcept(is_nothrow_default_constructible<allocator_type>::value);
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explicit forward_list(const allocator_type& a);
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explicit forward_list(size_type n);
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explicit forward_list(size_type n, const allocator_type& a); // C++14
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forward_list(size_type n, const value_type& v);
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forward_list(size_type n, const value_type& v, const allocator_type& a);
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template <class InputIterator>
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forward_list(InputIterator first, InputIterator last);
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template <class InputIterator>
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forward_list(InputIterator first, InputIterator last, const allocator_type& a);
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forward_list(const forward_list& x);
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forward_list(const forward_list& x, const allocator_type& a);
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forward_list(forward_list&& x)
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noexcept(is_nothrow_move_constructible<allocator_type>::value);
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forward_list(forward_list&& x, const allocator_type& a);
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forward_list(initializer_list<value_type> il);
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forward_list(initializer_list<value_type> il, const allocator_type& a);
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~forward_list();
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forward_list& operator=(const forward_list& x);
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forward_list& operator=(forward_list&& x)
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noexcept(
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allocator_type::propagate_on_container_move_assignment::value &&
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is_nothrow_move_assignable<allocator_type>::value);
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forward_list& operator=(initializer_list<value_type> il);
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template <class InputIterator>
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void assign(InputIterator first, InputIterator last);
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void assign(size_type n, const value_type& v);
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void assign(initializer_list<value_type> il);
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allocator_type get_allocator() const noexcept;
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iterator begin() noexcept;
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const_iterator begin() const noexcept;
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iterator end() noexcept;
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const_iterator end() const noexcept;
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const_iterator cbegin() const noexcept;
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const_iterator cend() const noexcept;
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iterator before_begin() noexcept;
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const_iterator before_begin() const noexcept;
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const_iterator cbefore_begin() const noexcept;
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bool empty() const noexcept;
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size_type max_size() const noexcept;
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reference front();
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const_reference front() const;
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template <class... Args> reference emplace_front(Args&&... args); // reference in C++17
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void push_front(const value_type& v);
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void push_front(value_type&& v);
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void pop_front();
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template <class... Args>
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iterator emplace_after(const_iterator p, Args&&... args);
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iterator insert_after(const_iterator p, const value_type& v);
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iterator insert_after(const_iterator p, value_type&& v);
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iterator insert_after(const_iterator p, size_type n, const value_type& v);
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template <class InputIterator>
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iterator insert_after(const_iterator p,
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InputIterator first, InputIterator last);
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iterator insert_after(const_iterator p, initializer_list<value_type> il);
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iterator erase_after(const_iterator p);
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iterator erase_after(const_iterator first, const_iterator last);
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void swap(forward_list& x)
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noexcept(allocator_traits<allocator_type>::is_always_equal::value); // C++17
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void resize(size_type n);
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void resize(size_type n, const value_type& v);
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void clear() noexcept;
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void splice_after(const_iterator p, forward_list& x);
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void splice_after(const_iterator p, forward_list&& x);
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void splice_after(const_iterator p, forward_list& x, const_iterator i);
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void splice_after(const_iterator p, forward_list&& x, const_iterator i);
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void splice_after(const_iterator p, forward_list& x,
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const_iterator first, const_iterator last);
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void splice_after(const_iterator p, forward_list&& x,
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const_iterator first, const_iterator last);
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void remove(const value_type& v);
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template <class Predicate> void remove_if(Predicate pred);
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void unique();
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template <class BinaryPredicate> void unique(BinaryPredicate binary_pred);
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void merge(forward_list& x);
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void merge(forward_list&& x);
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template <class Compare> void merge(forward_list& x, Compare comp);
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template <class Compare> void merge(forward_list&& x, Compare comp);
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void sort();
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template <class Compare> void sort(Compare comp);
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void reverse() noexcept;
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};
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template <class InputIterator, class Allocator = allocator<typename iterator_traits<InputIterator>::value_type>>
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forward_list(InputIterator, InputIterator, Allocator = Allocator())
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-> forward_list<typename iterator_traits<InputIterator>::value_type, Allocator>; // C++17
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template <class T, class Allocator>
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bool operator==(const forward_list<T, Allocator>& x,
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const forward_list<T, Allocator>& y);
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template <class T, class Allocator>
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bool operator< (const forward_list<T, Allocator>& x,
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const forward_list<T, Allocator>& y);
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template <class T, class Allocator>
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bool operator!=(const forward_list<T, Allocator>& x,
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const forward_list<T, Allocator>& y);
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template <class T, class Allocator>
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bool operator> (const forward_list<T, Allocator>& x,
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const forward_list<T, Allocator>& y);
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template <class T, class Allocator>
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bool operator>=(const forward_list<T, Allocator>& x,
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const forward_list<T, Allocator>& y);
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template <class T, class Allocator>
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bool operator<=(const forward_list<T, Allocator>& x,
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const forward_list<T, Allocator>& y);
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template <class T, class Allocator>
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void swap(forward_list<T, Allocator>& x, forward_list<T, Allocator>& y)
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noexcept(noexcept(x.swap(y)));
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template <class T, class Allocator, class U>
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void erase(forward_list<T, Allocator>& c, const U& value); // C++20
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template <class T, class Allocator, class Predicate>
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void erase_if(forward_list<T, Allocator>& c, Predicate pred); // C++20
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} // std
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*/
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#include <__config>
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#include <initializer_list>
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#include <memory>
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#include <limits>
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#include <iterator>
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#include <algorithm>
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#include <version>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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#pragma GCC system_header
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#endif
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_LIBCPP_PUSH_MACROS
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#include <__undef_macros>
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_LIBCPP_BEGIN_NAMESPACE_STD
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template <class _Tp, class _VoidPtr> struct __forward_list_node;
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template <class _NodePtr> struct __forward_begin_node;
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template <class>
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struct __forward_list_node_value_type;
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template <class _Tp, class _VoidPtr>
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struct __forward_list_node_value_type<__forward_list_node<_Tp, _VoidPtr> > {
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typedef _Tp type;
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};
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template <class _NodePtr>
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struct __forward_node_traits {
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typedef typename remove_cv<
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typename pointer_traits<_NodePtr>::element_type>::type __node;
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typedef typename __forward_list_node_value_type<__node>::type __node_value_type;
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typedef _NodePtr __node_pointer;
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typedef __forward_begin_node<_NodePtr> __begin_node;
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typedef typename __rebind_pointer<_NodePtr, __begin_node>::type
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__begin_node_pointer;
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typedef typename __rebind_pointer<_NodePtr, void>::type __void_pointer;
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#if defined(_LIBCPP_ABI_FORWARD_LIST_REMOVE_NODE_POINTER_UB)
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typedef __begin_node_pointer __iter_node_pointer;
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#else
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typedef typename conditional<
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is_pointer<__void_pointer>::value,
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__begin_node_pointer,
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__node_pointer
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>::type __iter_node_pointer;
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#endif
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typedef typename conditional<
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is_same<__iter_node_pointer, __node_pointer>::value,
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__begin_node_pointer,
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__node_pointer
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>::type __non_iter_node_pointer;
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_LIBCPP_INLINE_VISIBILITY
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static __iter_node_pointer __as_iter_node(__iter_node_pointer __p) {
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return __p;
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}
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_LIBCPP_INLINE_VISIBILITY
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static __iter_node_pointer __as_iter_node(__non_iter_node_pointer __p) {
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return static_cast<__iter_node_pointer>(static_cast<__void_pointer>(__p));
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}
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};
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template <class _NodePtr>
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struct __forward_begin_node
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{
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typedef _NodePtr pointer;
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typedef typename __rebind_pointer<_NodePtr, __forward_begin_node>::type __begin_node_pointer;
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pointer __next_;
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_LIBCPP_INLINE_VISIBILITY __forward_begin_node() : __next_(nullptr) {}
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_LIBCPP_INLINE_VISIBILITY
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__begin_node_pointer __next_as_begin() const {
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return static_cast<__begin_node_pointer>(__next_);
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}
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};
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template <class _Tp, class _VoidPtr>
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struct _LIBCPP_HIDDEN __begin_node_of
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{
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typedef __forward_begin_node<
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typename __rebind_pointer<_VoidPtr, __forward_list_node<_Tp, _VoidPtr> >::type
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> type;
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};
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template <class _Tp, class _VoidPtr>
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struct __forward_list_node
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: public __begin_node_of<_Tp, _VoidPtr>::type
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{
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typedef _Tp value_type;
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value_type __value_;
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};
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template <class _Tp, class _Alloc = allocator<_Tp> > class _LIBCPP_TEMPLATE_VIS forward_list;
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template<class _NodeConstPtr> class _LIBCPP_TEMPLATE_VIS __forward_list_const_iterator;
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template <class _NodePtr>
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class _LIBCPP_TEMPLATE_VIS __forward_list_iterator
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{
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typedef __forward_node_traits<_NodePtr> __traits;
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typedef typename __traits::__node_pointer __node_pointer;
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typedef typename __traits::__begin_node_pointer __begin_node_pointer;
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typedef typename __traits::__iter_node_pointer __iter_node_pointer;
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typedef typename __traits::__void_pointer __void_pointer;
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__iter_node_pointer __ptr_;
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_LIBCPP_INLINE_VISIBILITY
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__begin_node_pointer __get_begin() const {
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return static_cast<__begin_node_pointer>(
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static_cast<__void_pointer>(__ptr_));
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}
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_LIBCPP_INLINE_VISIBILITY
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__node_pointer __get_unsafe_node_pointer() const {
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return static_cast<__node_pointer>(
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static_cast<__void_pointer>(__ptr_));
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}
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_LIBCPP_INLINE_VISIBILITY
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explicit __forward_list_iterator(nullptr_t) _NOEXCEPT : __ptr_(nullptr) {}
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_LIBCPP_INLINE_VISIBILITY
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explicit __forward_list_iterator(__begin_node_pointer __p) _NOEXCEPT
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: __ptr_(__traits::__as_iter_node(__p)) {}
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_LIBCPP_INLINE_VISIBILITY
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explicit __forward_list_iterator(__node_pointer __p) _NOEXCEPT
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: __ptr_(__traits::__as_iter_node(__p)) {}
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template<class, class> friend class _LIBCPP_TEMPLATE_VIS forward_list;
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template<class> friend class _LIBCPP_TEMPLATE_VIS __forward_list_const_iterator;
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public:
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typedef forward_iterator_tag iterator_category;
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typedef typename __traits::__node_value_type value_type;
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typedef value_type& reference;
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typedef typename pointer_traits<__node_pointer>::difference_type
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difference_type;
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typedef typename __rebind_pointer<__node_pointer, value_type>::type pointer;
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_LIBCPP_INLINE_VISIBILITY
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__forward_list_iterator() _NOEXCEPT : __ptr_(nullptr) {}
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_LIBCPP_INLINE_VISIBILITY
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reference operator*() const {return __get_unsafe_node_pointer()->__value_;}
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_LIBCPP_INLINE_VISIBILITY
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pointer operator->() const {
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return pointer_traits<pointer>::pointer_to(__get_unsafe_node_pointer()->__value_);
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}
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_LIBCPP_INLINE_VISIBILITY
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__forward_list_iterator& operator++()
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{
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__ptr_ = __traits::__as_iter_node(__ptr_->__next_);
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return *this;
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}
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_LIBCPP_INLINE_VISIBILITY
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__forward_list_iterator operator++(int)
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{
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__forward_list_iterator __t(*this);
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++(*this);
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return __t;
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}
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friend _LIBCPP_INLINE_VISIBILITY
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bool operator==(const __forward_list_iterator& __x,
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const __forward_list_iterator& __y)
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{return __x.__ptr_ == __y.__ptr_;}
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friend _LIBCPP_INLINE_VISIBILITY
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bool operator!=(const __forward_list_iterator& __x,
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const __forward_list_iterator& __y)
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{return !(__x == __y);}
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};
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template <class _NodeConstPtr>
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class _LIBCPP_TEMPLATE_VIS __forward_list_const_iterator
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{
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static_assert((!is_const<typename pointer_traits<_NodeConstPtr>::element_type>::value), "");
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typedef _NodeConstPtr _NodePtr;
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typedef __forward_node_traits<_NodePtr> __traits;
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typedef typename __traits::__node __node;
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typedef typename __traits::__node_pointer __node_pointer;
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typedef typename __traits::__begin_node_pointer __begin_node_pointer;
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typedef typename __traits::__iter_node_pointer __iter_node_pointer;
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typedef typename __traits::__void_pointer __void_pointer;
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__iter_node_pointer __ptr_;
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__begin_node_pointer __get_begin() const {
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return static_cast<__begin_node_pointer>(
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static_cast<__void_pointer>(__ptr_));
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}
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__node_pointer __get_unsafe_node_pointer() const {
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return static_cast<__node_pointer>(
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static_cast<__void_pointer>(__ptr_));
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}
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_LIBCPP_INLINE_VISIBILITY
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explicit __forward_list_const_iterator(nullptr_t) _NOEXCEPT
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: __ptr_(nullptr) {}
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_LIBCPP_INLINE_VISIBILITY
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explicit __forward_list_const_iterator(__begin_node_pointer __p) _NOEXCEPT
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: __ptr_(__traits::__as_iter_node(__p)) {}
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_LIBCPP_INLINE_VISIBILITY
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explicit __forward_list_const_iterator(__node_pointer __p) _NOEXCEPT
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: __ptr_(__traits::__as_iter_node(__p)) {}
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template<class, class> friend class forward_list;
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public:
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typedef forward_iterator_tag iterator_category;
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typedef typename __traits::__node_value_type value_type;
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typedef const value_type& reference;
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typedef typename pointer_traits<__node_pointer>::difference_type
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difference_type;
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typedef typename __rebind_pointer<__node_pointer, const value_type>::type
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pointer;
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_LIBCPP_INLINE_VISIBILITY
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__forward_list_const_iterator() _NOEXCEPT : __ptr_(nullptr) {}
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_LIBCPP_INLINE_VISIBILITY
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__forward_list_const_iterator(__forward_list_iterator<__node_pointer> __p) _NOEXCEPT
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: __ptr_(__p.__ptr_) {}
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_LIBCPP_INLINE_VISIBILITY
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reference operator*() const {return __get_unsafe_node_pointer()->__value_;}
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_LIBCPP_INLINE_VISIBILITY
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pointer operator->() const {return pointer_traits<pointer>::pointer_to(
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__get_unsafe_node_pointer()->__value_);}
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_LIBCPP_INLINE_VISIBILITY
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__forward_list_const_iterator& operator++()
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{
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__ptr_ = __traits::__as_iter_node(__ptr_->__next_);
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return *this;
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}
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_LIBCPP_INLINE_VISIBILITY
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__forward_list_const_iterator operator++(int)
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{
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__forward_list_const_iterator __t(*this);
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++(*this);
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return __t;
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}
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friend _LIBCPP_INLINE_VISIBILITY
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bool operator==(const __forward_list_const_iterator& __x,
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const __forward_list_const_iterator& __y)
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{return __x.__ptr_ == __y.__ptr_;}
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friend _LIBCPP_INLINE_VISIBILITY
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bool operator!=(const __forward_list_const_iterator& __x,
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const __forward_list_const_iterator& __y)
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{return !(__x == __y);}
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};
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template <class _Tp, class _Alloc>
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class __forward_list_base
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{
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protected:
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typedef _Tp value_type;
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typedef _Alloc allocator_type;
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typedef typename allocator_traits<allocator_type>::void_pointer void_pointer;
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typedef __forward_list_node<value_type, void_pointer> __node;
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typedef typename __begin_node_of<value_type, void_pointer>::type __begin_node;
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typedef typename __rebind_alloc_helper<allocator_traits<allocator_type>, __node>::type __node_allocator;
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typedef allocator_traits<__node_allocator> __node_traits;
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typedef typename __node_traits::pointer __node_pointer;
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typedef typename __rebind_alloc_helper<
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allocator_traits<allocator_type>, __begin_node
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>::type __begin_node_allocator;
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typedef typename allocator_traits<__begin_node_allocator>::pointer
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__begin_node_pointer;
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static_assert((!is_same<allocator_type, __node_allocator>::value),
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"internal allocator type must differ from user-specified "
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"type; otherwise overload resolution breaks");
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__compressed_pair<__begin_node, __node_allocator> __before_begin_;
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_LIBCPP_INLINE_VISIBILITY
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__begin_node_pointer __before_begin() _NOEXCEPT
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{return pointer_traits<__begin_node_pointer>::pointer_to(__before_begin_.first());}
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_LIBCPP_INLINE_VISIBILITY
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__begin_node_pointer __before_begin() const _NOEXCEPT
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{return pointer_traits<__begin_node_pointer>::pointer_to(const_cast<__begin_node&>(__before_begin_.first()));}
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_LIBCPP_INLINE_VISIBILITY
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__node_allocator& __alloc() _NOEXCEPT
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{return __before_begin_.second();}
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_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
|
|
explicit __forward_list_base(const allocator_type& __a)
|
|
: __before_begin_(__begin_node(), __node_allocator(__a)) {}
|
|
_LIBCPP_INLINE_VISIBILITY
|
|
explicit __forward_list_base(const __node_allocator& __a)
|
|
: __before_begin_(__begin_node(), __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);
|
|
};
|
|
|
|
|
|
#ifndef _LIBCPP_HAS_NO_DEDUCTION_GUIDES
|
|
template<class _InputIterator,
|
|
class _Alloc = typename std::allocator<typename iterator_traits<_InputIterator>::value_type>,
|
|
class = typename enable_if<__is_allocator<_Alloc>::value, void>::type
|
|
>
|
|
forward_list(_InputIterator, _InputIterator)
|
|
-> forward_list<typename iterator_traits<_InputIterator>::value_type, _Alloc>;
|
|
|
|
template<class _InputIterator,
|
|
class _Alloc,
|
|
class = typename enable_if<__is_allocator<_Alloc>::value, void>::type
|
|
>
|
|
forward_list(_InputIterator, _InputIterator, _Alloc)
|
|
-> forward_list<typename iterator_traits<_InputIterator>::value_type, _Alloc>;
|
|
#endif
|
|
|
|
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(
|
|
__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);
|
|
}
|
|
|
|
#if _LIBCPP_STD_VER > 17
|
|
template <class _Tp, class _Allocator, class _Predicate>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
void erase_if(forward_list<_Tp, _Allocator>& __c, _Predicate __pred)
|
|
{ __c.remove_if(__pred); }
|
|
|
|
template <class _Tp, class _Allocator, class _Up>
|
|
inline _LIBCPP_INLINE_VISIBILITY
|
|
void erase(forward_list<_Tp, _Allocator>& __c, const _Up& __v)
|
|
{ _VSTD::erase_if(__c, [&](auto& __elem) { return __elem == __v; }); }
|
|
#endif
|
|
|
|
_LIBCPP_END_NAMESPACE_STD
|
|
|
|
_LIBCPP_POP_MACROS
|
|
|
|
#endif // _LIBCPP_FORWARD_LIST
|