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			1782 lines
		
	
	
	
		
			61 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			1782 lines
		
	
	
	
		
			61 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| // -*- C++ -*-
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| // clang-format off
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| //===----------------------- forward_list ---------------------------------===//
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| //
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| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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| // See https://llvm.org/LICENSE.txt for license information.
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| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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| //
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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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| 
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| namespace std
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| {
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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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| 
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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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| 
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|     typedef <details> iterator;
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|     typedef <details> const_iterator;
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| 
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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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| 
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|     ~forward_list();
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| 
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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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| 
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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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| 
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|     allocator_type get_allocator() const noexcept;
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| 
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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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| 
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|     const_iterator cbegin() const noexcept;
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|     const_iterator cend() const noexcept;
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| 
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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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| 
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|     bool empty() const noexcept;
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|     size_type max_size() const noexcept;
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| 
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|     reference       front();
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|     const_reference front() const;
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| 
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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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| 
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|     void pop_front();
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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|     size_type remove(const value_type& v);           // void before C++20
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|     template <class Predicate>
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|       size_type remove_if(Predicate pred);           // void before C++20
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|     size_type unique();                              // void before C++20
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|     template <class BinaryPredicate>
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|       size_type unique(BinaryPredicate binary_pred); // void before C++20
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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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| 
 | |
| 
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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())
 | |
|     -> forward_list<typename iterator_traits<InputIterator>::value_type, Allocator>;  // C++17
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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| }  // std
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| 
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| */
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| 
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| #include "third_party/libcxx/__config"
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| #include "third_party/libcxx/initializer_list"
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| #include "third_party/libcxx/memory"
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| #include "third_party/libcxx/limits"
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| #include "third_party/libcxx/iterator"
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| #include "third_party/libcxx/algorithm"
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| #include "third_party/libcxx/version"
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| 
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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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| 
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| _LIBCPP_PUSH_MACROS
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| #include "third_party/libcxx/__undef_macros"
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| 
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| 
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| _LIBCPP_BEGIN_NAMESPACE_STD
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| 
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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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| 
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| 
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| template <class>
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| struct __forward_list_node_value_type;
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| 
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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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| 
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| template <class _NodePtr>
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| struct __forward_node_traits {
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| 
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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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| 
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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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| 
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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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| 
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|     pointer __next_;
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| 
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|     _LIBCPP_INLINE_VISIBILITY __forward_begin_node() : __next_(nullptr) {}
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| 
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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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| 
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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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| 
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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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| 
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|     value_type __value_;
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| };
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| 
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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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| 
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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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| 
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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_));
 | |
|     }
 | |
|     _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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|     }
 | |
| 
 | |
|     _LIBCPP_INLINE_VISIBILITY
 | |
|     explicit __forward_list_iterator(nullptr_t) _NOEXCEPT : __ptr_(nullptr) {}
 | |
| 
 | |
|     _LIBCPP_INLINE_VISIBILITY
 | |
|     explicit __forward_list_iterator(__begin_node_pointer __p) _NOEXCEPT
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|         : __ptr_(__traits::__as_iter_node(__p)) {}
 | |
| 
 | |
|     _LIBCPP_INLINE_VISIBILITY
 | |
|     explicit __forward_list_iterator(__node_pointer __p) _NOEXCEPT
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|         : __ptr_(__traits::__as_iter_node(__p)) {}
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| 
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|     template<class, class> friend class _LIBCPP_TEMPLATE_VIS forward_list;
 | |
|     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;
 | |
| 
 | |
|     _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 {
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|         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;
 | |
| 
 | |
|     static_assert((!is_same<allocator_type, __node_allocator>::value),
 | |
|                   "internal allocator type must differ from user-specified "
 | |
|                   "type; otherwise overload resolution breaks");
 | |
| 
 | |
|     __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
 | |
|     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;
 | |
| #if _LIBCPP_STD_VER > 17
 | |
|     typedef size_type                                __remove_return_type;
 | |
| #else
 | |
|     typedef void                                     __remove_return_type;
 | |
| #endif
 | |
| 
 | |
|     _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();}
 | |
| 
 | |
|     _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);
 | |
|     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);
 | |
|     __remove_return_type remove(const value_type& __v);
 | |
|     template <class _Predicate> __remove_return_type remove_if(_Predicate __pred);
 | |
|     _LIBCPP_INLINE_VISIBILITY
 | |
|     __remove_return_type unique() {return unique(__equal_to<value_type>());}
 | |
|     template <class _BinaryPredicate> __remove_return_type 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();
 | |
|         }
 | |
|     }
 | |
| }
 | |
| 
 | |
| 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);
 | |
| }
 | |
| 
 | |
| template <class _Tp, class _Alloc>
 | |
| typename forward_list<_Tp, _Alloc>::__remove_return_type
 | |
| forward_list<_Tp, _Alloc>::remove(const value_type& __v)
 | |
| {
 | |
|     forward_list<_Tp, _Alloc> __deleted_nodes(get_allocator()); // collect the nodes we're removing
 | |
|     typename forward_list<_Tp, _Alloc>::size_type __count_removed = 0;
 | |
|     const iterator __e = end();
 | |
|     for (iterator __i = before_begin(); __i.__get_begin()->__next_ != nullptr;)
 | |
|     {
 | |
|         if (__i.__get_begin()->__next_->__value_ == __v)
 | |
|         {
 | |
|             ++__count_removed;
 | |
|             iterator __j = _VSTD::next(__i, 2);
 | |
|             for (; __j != __e && *__j == __v; ++__j)
 | |
|                 ++__count_removed;
 | |
|             __deleted_nodes.splice_after(__deleted_nodes.before_begin(), *this, __i, __j);
 | |
|             if (__j == __e)
 | |
|                 break;
 | |
|             __i = __j;
 | |
|         }
 | |
|         else
 | |
|             ++__i;
 | |
|     }
 | |
|     
 | |
|     return (__remove_return_type) __count_removed;
 | |
| }
 | |
| 
 | |
| template <class _Tp, class _Alloc>
 | |
| template <class _Predicate>
 | |
| typename forward_list<_Tp, _Alloc>::__remove_return_type
 | |
| forward_list<_Tp, _Alloc>::remove_if(_Predicate __pred)
 | |
| {
 | |
|     forward_list<_Tp, _Alloc> __deleted_nodes(get_allocator()); // collect the nodes we're removing
 | |
|     typename forward_list<_Tp, _Alloc>::size_type __count_removed = 0;
 | |
|     const iterator __e = end();
 | |
|     for (iterator __i = before_begin(); __i.__get_begin()->__next_ != nullptr;)
 | |
|     {
 | |
|         if (__pred(__i.__get_begin()->__next_->__value_))
 | |
|         {
 | |
|             ++__count_removed;
 | |
|             iterator __j = _VSTD::next(__i, 2);
 | |
|             for (; __j != __e && __pred(*__j); ++__j)
 | |
|                 ++__count_removed;
 | |
|             __deleted_nodes.splice_after(__deleted_nodes.before_begin(), *this, __i, __j);
 | |
|             if (__j == __e)
 | |
|                 break;
 | |
|             __i = __j;
 | |
|         }
 | |
|         else
 | |
|             ++__i;
 | |
|     }
 | |
|     
 | |
|     return (__remove_return_type) __count_removed;
 | |
| }
 | |
| 
 | |
| template <class _Tp, class _Alloc>
 | |
| template <class _BinaryPredicate>
 | |
| typename forward_list<_Tp, _Alloc>::__remove_return_type
 | |
| forward_list<_Tp, _Alloc>::unique(_BinaryPredicate __binary_pred)
 | |
| {
 | |
|     forward_list<_Tp, _Alloc> __deleted_nodes(get_allocator()); // collect the nodes we're removing
 | |
|     typename forward_list<_Tp, _Alloc>::size_type __count_removed = 0;
 | |
|     for (iterator __i = begin(), __e = end(); __i != __e;)
 | |
|     {
 | |
|         iterator __j = _VSTD::next(__i);
 | |
|         for (; __j != __e && __binary_pred(*__i, *__j); ++__j)
 | |
|             ++__count_removed;
 | |
|         if (__i.__get_begin()->__next_ != __j.__get_unsafe_node_pointer())
 | |
|             __deleted_nodes.splice_after(__deleted_nodes.before_begin(), *this, __i, __j);
 | |
|         __i = __j;
 | |
|     }
 | |
|     
 | |
|     return (__remove_return_type) __count_removed;
 | |
| }
 | |
| 
 | |
| 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
 |