OXIESEC PANEL

Name	Size	Modified	Perms
📁 ..	-	01/31/2023 12:38:15 PM	rwxr-xr-x
📄 algorithmfwd.h	21.23 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 alloc_traits.h	19.13 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 allocated_ptr.h	3.43 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 allocator.h	6.73 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 atomic_base.h	23.28 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 atomic_futex.h	9.35 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 atomic_lockfree_defines.h	2.2 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 basic_ios.h	15.7 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 basic_ios.tcc	5.94 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 basic_string.h	235.15 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 basic_string.tcc	52.5 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 boost_concept_check.h	26.41 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 c++0x_warning.h	1.44 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 char_traits.h	20.26 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 codecvt.h	20.8 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 concept_check.h	3.34 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 cpp_type_traits.h	9.37 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 cxxabi_forced.h	1.77 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 cxxabi_init_exception.h	2.17 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 deque.tcc	33.26 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 enable_special_members.h	12.1 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 exception.h	2.23 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 exception_defines.h	1.61 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 exception_ptr.h	6.31 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 forward_list.h	47.5 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 forward_list.tcc	14.68 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 fstream.tcc	32.14 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 functexcept.h	3.18 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 functional_hash.h	8 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 gslice.h	5.39 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 gslice_array.h	7.59 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 hash_bytes.h	2.1 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 hashtable.h	71.56 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 hashtable_policy.h	65.47 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 indirect_array.h	7.68 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 invoke.h	3.57 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 ios_base.h	30.22 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 istream.tcc	30.36 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 list.tcc	15.54 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 locale_classes.h	24.31 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 locale_classes.tcc	8.18 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 locale_conv.h	15.7 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 locale_facets.h	89.98 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 locale_facets.tcc	38.64 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 locale_facets_nonio.h	67.33 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 locale_facets_nonio.tcc	44.46 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 localefwd.h	5.51 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 mask_array.h	7.42 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 memoryfwd.h	2.36 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 move.h	6.5 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 nested_exception.h	4.66 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 node_handle.h	7.97 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 ostream.tcc	12.03 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 ostream_insert.h	3.91 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 parse_numbers.h	7.84 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 postypes.h	8.02 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 predefined_ops.h	8.87 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 ptr_traits.h	4.75 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 quoted_string.h	4.47 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 random.h	171.19 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 random.tcc	103.08 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 range_access.h	9.75 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 refwrap.h	13.48 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 regex.h	95.9 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 regex.tcc	16.1 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 regex_automaton.h	10.47 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 regex_automaton.tcc	7.65 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 regex_compiler.h	16.79 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 regex_compiler.tcc	18.46 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 regex_constants.h	14.36 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 regex_error.h	4.85 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 regex_executor.h	7.31 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 regex_executor.tcc	16.91 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 regex_scanner.h	6.92 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 regex_scanner.tcc	14.66 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 shared_ptr.h	22.37 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 shared_ptr_atomic.h	9.54 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 shared_ptr_base.h	52.54 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 slice_array.h	9.13 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 specfun.h	44.03 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 sstream.tcc	9.88 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 std_abs.h	3.21 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 std_function.h	23.41 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 std_mutex.h	9.08 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_algo.h	208.85 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_algobase.h	49.22 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_bvector.h	33.03 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_construct.h	7.22 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_deque.h	75.95 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_function.h	32.5 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_heap.h	19.73 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_iterator.h	40.77 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_iterator_base_funcs.h	7.88 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_iterator_base_types.h	8.48 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_list.h	63.65 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_map.h	50.02 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_multimap.h	39 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_multiset.h	33.26 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_numeric.h	13.51 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_pair.h	18.21 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_queue.h	21.61 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_raw_storage_iter.h	3.74 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_relops.h	4.49 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_set.h	33.63 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_stack.h	11.18 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_tempbuf.h	8.15 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_tree.h	73.07 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_uninitialized.h	27 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stl_vector.h	54.33 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stream_iterator.h	6.5 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 streambuf.tcc	4.81 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 streambuf_iterator.h	12.33 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 string_view.tcc	6.48 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 stringfwd.h	2.55 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 uniform_int_dist.h	9.91 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 unique_ptr.h	24.88 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 unordered_map.h	67.04 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 unordered_set.h	52.56 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 uses_allocator.h	6.23 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 valarray_after.h	22.12 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 valarray_array.h	21.3 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 valarray_array.tcc	7.08 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 valarray_before.h	18.08 KB	12/04/2019 02:25:41 PM	rw-r--r--
📄 vector.tcc	26.95 KB	12/04/2019 02:25:41 PM	rw-r--r--

Editing: forward_list.tcc

// <forward_list.tcc> -*- C++ -*-

// Copyright (C) 2008-2017 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/** @file bits/forward_list.tcc
 *  This is an internal header file, included by other library headers.
 *  Do not attempt to use it directly. @headername{forward_list}
 */

#ifndef _FORWARD_LIST_TCC
#define _FORWARD_LIST_TCC 1

namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_CONTAINER

template<typename _Tp, typename _Alloc>
    _Fwd_list_base<_Tp, _Alloc>::
    _Fwd_list_base(_Fwd_list_base&& __lst, _Node_alloc_type&& __a)
    : _M_impl(std::move(__a))
    {
      if (__lst._M_get_Node_allocator() == _M_get_Node_allocator())
	{
	  this->_M_impl._M_head._M_next = __lst._M_impl._M_head._M_next;
	  __lst._M_impl._M_head._M_next = 0;
	}
      else
	this->_M_impl._M_head._M_next = 0;
    }

template<typename _Tp, typename _Alloc>
    template<typename... _Args>
      _Fwd_list_node_base*
      _Fwd_list_base<_Tp, _Alloc>::
      _M_insert_after(const_iterator __pos, _Args&&... __args)
      {
        _Fwd_list_node_base* __to
	  = const_cast<_Fwd_list_node_base*>(__pos._M_node);
	_Node* __thing = _M_create_node(std::forward<_Args>(__args)...);
        __thing->_M_next = __to->_M_next;
        __to->_M_next = __thing;
        return __to->_M_next;
      }

template<typename _Tp, typename _Alloc>
    _Fwd_list_node_base*
    _Fwd_list_base<_Tp, _Alloc>::
    _M_erase_after(_Fwd_list_node_base* __pos)
    {
      _Node* __curr = static_cast<_Node*>(__pos->_M_next);
      __pos->_M_next = __curr->_M_next;
      _Node_alloc_traits::destroy(_M_get_Node_allocator(),
				  __curr->_M_valptr());
      __curr->~_Node();
      _M_put_node(__curr);
      return __pos->_M_next;
    }

template<typename _Tp, typename _Alloc>
    _Fwd_list_node_base*
    _Fwd_list_base<_Tp, _Alloc>::
    _M_erase_after(_Fwd_list_node_base* __pos, 
                   _Fwd_list_node_base* __last)
    {
      _Node* __curr = static_cast<_Node*>(__pos->_M_next);
      while (__curr != __last)
        {
          _Node* __temp = __curr;
          __curr = static_cast<_Node*>(__curr->_M_next);
	  _Node_alloc_traits::destroy(_M_get_Node_allocator(),
				      __temp->_M_valptr());
	  __temp->~_Node();
          _M_put_node(__temp);
        }
      __pos->_M_next = __last;
      return __last;
    }

// Called by the range constructor to implement [23.3.4.2]/9
  template<typename _Tp, typename _Alloc>
    template<typename _InputIterator>
      void
      forward_list<_Tp, _Alloc>::
      _M_range_initialize(_InputIterator __first, _InputIterator __last)
      {
        _Node_base* __to = &this->_M_impl._M_head;
        for (; __first != __last; ++__first)
          {
            __to->_M_next = this->_M_create_node(*__first);
            __to = __to->_M_next;
          }
      }

// Called by forward_list(n,v,a).
  template<typename _Tp, typename _Alloc>
    void
    forward_list<_Tp, _Alloc>::
    _M_fill_initialize(size_type __n, const value_type& __value)
    {
      _Node_base* __to = &this->_M_impl._M_head;
      for (; __n; --__n)
        {
          __to->_M_next = this->_M_create_node(__value);
          __to = __to->_M_next;
        }
    }

template<typename _Tp, typename _Alloc>
    void
    forward_list<_Tp, _Alloc>::
    _M_default_initialize(size_type __n)
    {
      _Node_base* __to = &this->_M_impl._M_head;
      for (; __n; --__n)
        {
          __to->_M_next = this->_M_create_node();
          __to = __to->_M_next;
        }
    }

template<typename _Tp, typename _Alloc>
    forward_list<_Tp, _Alloc>&
    forward_list<_Tp, _Alloc>::
    operator=(const forward_list& __list)
    {
      if (std::__addressof(__list) != this)
        {
	  if (_Node_alloc_traits::_S_propagate_on_copy_assign())
	    {
              auto& __this_alloc = this->_M_get_Node_allocator();
              auto& __that_alloc = __list._M_get_Node_allocator();
              if (!_Node_alloc_traits::_S_always_equal()
	          && __this_alloc != __that_alloc)
	        {
		  // replacement allocator cannot free existing storage
		  clear();
		}
	      std::__alloc_on_copy(__this_alloc, __that_alloc);
            }
	  assign(__list.cbegin(), __list.cend());
        }
      return *this;
    }

template<typename _Tp, typename _Alloc>
    void
    forward_list<_Tp, _Alloc>::
    _M_default_insert_after(const_iterator __pos, size_type __n)
    {
      const_iterator __saved_pos = __pos;
      __try
	{
	  for (; __n; --__n)
	    __pos = emplace_after(__pos);
	}
      __catch(...)
	{
	  erase_after(__saved_pos, ++__pos);
	  __throw_exception_again;
	}
    }

template<typename _Tp, typename _Alloc>
    void
    forward_list<_Tp, _Alloc>::
    resize(size_type __sz)
    {
      iterator __k = before_begin();

size_type __len = 0;
      while (__k._M_next() != end() && __len < __sz)
        {
          ++__k;
          ++__len;
        }
      if (__len == __sz)
        erase_after(__k, end());
      else
	_M_default_insert_after(__k, __sz - __len);
    }

template<typename _Tp, typename _Alloc>
    void
    forward_list<_Tp, _Alloc>::
    resize(size_type __sz, const value_type& __val)
    {
      iterator __k = before_begin();

size_type __len = 0;
      while (__k._M_next() != end() && __len < __sz)
        {
          ++__k;
          ++__len;
        }
      if (__len == __sz)
        erase_after(__k, end());
      else
        insert_after(__k, __sz - __len, __val);
    }

template<typename _Tp, typename _Alloc>
    typename forward_list<_Tp, _Alloc>::iterator
    forward_list<_Tp, _Alloc>::
    _M_splice_after(const_iterator __pos,
		    const_iterator __before, const_iterator __last)
    {
      _Node_base* __tmp = const_cast<_Node_base*>(__pos._M_node);
      _Node_base* __b = const_cast<_Node_base*>(__before._M_node);
      _Node_base* __end = __b;

while (__end && __end->_M_next != __last._M_node)
	__end = __end->_M_next;

if (__b != __end)
	return iterator(__tmp->_M_transfer_after(__b, __end));      
      else
	return iterator(__tmp);
    }

template<typename _Tp, typename _Alloc>
    void
    forward_list<_Tp, _Alloc>::
    splice_after(const_iterator __pos, forward_list&&,
		 const_iterator __i) noexcept
    {
      const_iterator __j = __i;
      ++__j;

if (__pos == __i || __pos == __j)
	return;

_Node_base* __tmp = const_cast<_Node_base*>(__pos._M_node);
      __tmp->_M_transfer_after(const_cast<_Node_base*>(__i._M_node),
			       const_cast<_Node_base*>(__j._M_node));
    }

template<typename _Tp, typename _Alloc>
    typename forward_list<_Tp, _Alloc>::iterator
    forward_list<_Tp, _Alloc>::
    insert_after(const_iterator __pos, size_type __n, const _Tp& __val)
    {
      if (__n)
	{
	  forward_list __tmp(__n, __val, get_allocator());
	  return _M_splice_after(__pos, __tmp.before_begin(), __tmp.end());
	}
      else
	return iterator(const_cast<_Node_base*>(__pos._M_node));
    }

template<typename _Tp, typename _Alloc>
    template<typename _InputIterator, typename>
      typename forward_list<_Tp, _Alloc>::iterator
      forward_list<_Tp, _Alloc>::
      insert_after(const_iterator __pos,
		   _InputIterator __first, _InputIterator __last)
      {
	forward_list __tmp(__first, __last, get_allocator());
	if (!__tmp.empty())
	  return _M_splice_after(__pos, __tmp.before_begin(), __tmp.end());
	else
	  return iterator(const_cast<_Node_base*>(__pos._M_node));
      }

template<typename _Tp, typename _Alloc>
    void
    forward_list<_Tp, _Alloc>::
    remove(const _Tp& __val)
    {
      _Node_base* __curr = &this->_M_impl._M_head;
      _Node_base* __extra = nullptr;

while (_Node* __tmp = static_cast<_Node*>(__curr->_M_next))
        {
          if (*__tmp->_M_valptr() == __val)
	    {
	      if (__tmp->_M_valptr() != std::__addressof(__val))
		{
		  this->_M_erase_after(__curr);
		  continue;
		}
	      else
		__extra = __curr;
	    }
	  __curr = __curr->_M_next;
        }

if (__extra)
	this->_M_erase_after(__extra);
    }

template<typename _Tp, typename _Alloc>
    template<typename _Pred>
      void
      forward_list<_Tp, _Alloc>::
      remove_if(_Pred __pred)
      {
	_Node_base* __curr = &this->_M_impl._M_head;
        while (_Node* __tmp = static_cast<_Node*>(__curr->_M_next))
          {
            if (__pred(*__tmp->_M_valptr()))
              this->_M_erase_after(__curr);
            else
              __curr = __curr->_M_next;
          }
      }

template<typename _Tp, typename _Alloc>
    template<typename _BinPred>
      void
      forward_list<_Tp, _Alloc>::
      unique(_BinPred __binary_pred)
      {
        iterator __first = begin();
        iterator __last = end();
        if (__first == __last)
          return;
        iterator __next = __first;
        while (++__next != __last)
        {
          if (__binary_pred(*__first, *__next))
            erase_after(__first);
          else
            __first = __next;
          __next = __first;
        }
      }

template<typename _Tp, typename _Alloc>
    template<typename _Comp>
      void
      forward_list<_Tp, _Alloc>::
      merge(forward_list&& __list, _Comp __comp)
      {
        _Node_base* __node = &this->_M_impl._M_head;
        while (__node->_M_next && __list._M_impl._M_head._M_next)
          {
            if (__comp(*static_cast<_Node*>
                       (__list._M_impl._M_head._M_next)->_M_valptr(),
                       *static_cast<_Node*>
                       (__node->_M_next)->_M_valptr()))
              __node->_M_transfer_after(&__list._M_impl._M_head,
                                        __list._M_impl._M_head._M_next);
            __node = __node->_M_next;
          }
        if (__list._M_impl._M_head._M_next)
          {
            __node->_M_next = __list._M_impl._M_head._M_next;
            __list._M_impl._M_head._M_next = 0;
          }
      }

template<typename _Tp, typename _Alloc>
    bool
    operator==(const forward_list<_Tp, _Alloc>& __lx,
               const forward_list<_Tp, _Alloc>& __ly)
    {
      //  We don't have size() so we need to walk through both lists
      //  making sure both iterators are valid.
      auto __ix = __lx.cbegin();
      auto __iy = __ly.cbegin();
      while (__ix != __lx.cend() && __iy != __ly.cend())
        {
          if (!(*__ix == *__iy))
            return false;
          ++__ix;
          ++__iy;
        }
      if (__ix == __lx.cend() && __iy == __ly.cend())
        return true;
      else
        return false;
    }

template<typename _Tp, class _Alloc>
    template<typename _Comp>
      void
      forward_list<_Tp, _Alloc>::
      sort(_Comp __comp)
      {
        // If `next' is 0, return immediately.
        _Node* __list = static_cast<_Node*>(this->_M_impl._M_head._M_next);
        if (!__list)
          return;

unsigned long __insize = 1;

while (1)
          {
            _Node* __p = __list;
            __list = 0;
            _Node* __tail = 0;

// Count number of merges we do in this pass.
            unsigned long __nmerges = 0;

while (__p)
              {
                ++__nmerges;
                // There exists a merge to be done.
                // Step `insize' places along from p.
                _Node* __q = __p;
                unsigned long __psize = 0;
                for (unsigned long __i = 0; __i < __insize; ++__i)
                  {
                    ++__psize;
                    __q = static_cast<_Node*>(__q->_M_next);
                    if (!__q)
                      break;
                  }

// If q hasn't fallen off end, we have two lists to merge.
                unsigned long __qsize = __insize;

// Now we have two lists; merge them.
                while (__psize > 0 || (__qsize > 0 && __q))
                  {
                    // Decide whether next node of merge comes from p or q.
                    _Node* __e;
                    if (__psize == 0)
                      {
                        // p is empty; e must come from q.
                        __e = __q;
                        __q = static_cast<_Node*>(__q->_M_next);
                        --__qsize;
                      }
                    else if (__qsize == 0 || !__q)
                      {
                        // q is empty; e must come from p.
                        __e = __p;
                        __p = static_cast<_Node*>(__p->_M_next);
                        --__psize;
                      }
                    else if (!__comp(*__q->_M_valptr(), *__p->_M_valptr()))
                      {
                        // First node of q is not lower; e must come from p.
                        __e = __p;
                        __p = static_cast<_Node*>(__p->_M_next);
                        --__psize;
                      }
                    else
                      {
                        // First node of q is lower; e must come from q.
                        __e = __q;
                        __q = static_cast<_Node*>(__q->_M_next);
                        --__qsize;
                      }

// Add the next node to the merged list.
                    if (__tail)
                      __tail->_M_next = __e;
                    else
                      __list = __e;
                    __tail = __e;
                  }

// Now p has stepped `insize' places along, and q has too.
                __p = __q;
              }
            __tail->_M_next = 0;

// If we have done only one merge, we're finished.
            // Allow for nmerges == 0, the empty list case.
            if (__nmerges <= 1)
              {
                this->_M_impl._M_head._M_next = __list;
                return;
              }

// Otherwise repeat, merging lists twice the size.
            __insize *= 2;
          }
      }
 
_GLIBCXX_END_NAMESPACE_CONTAINER
} // namespace std

#endif /* _FORWARD_LIST_TCC */