--- /dev/null
+// Debugging list implementation -*- C++ -*-
+
+// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
+// 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 debug/list
+ * This file is a GNU debug extension to the Standard C++ Library.
+ */
+
+#ifndef _GLIBCXX_DEBUG_LIST
+#define _GLIBCXX_DEBUG_LIST 1
+
+#include <list>
+#include <debug/safe_sequence.h>
+#include <debug/safe_iterator.h>
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+namespace __debug
+{
+ /// Class std::list with safety/checking/debug instrumentation.
+ template<typename _Tp, typename _Allocator = std::allocator<_Tp> >
+ class list
+ : public _GLIBCXX_STD_C::list<_Tp, _Allocator>,
+ public __gnu_debug::_Safe_sequence<list<_Tp, _Allocator> >
+ {
+ typedef _GLIBCXX_STD_C::list<_Tp, _Allocator> _Base;
+
+ typedef typename _Base::iterator _Base_iterator;
+ typedef typename _Base::const_iterator _Base_const_iterator;
+ typedef __gnu_debug::_Equal_to<_Base_const_iterator> _Equal;
+ typedef __gnu_debug::_Not_equal_to<_Base_const_iterator> _Not_equal;
+ public:
+ typedef typename _Base::reference reference;
+ typedef typename _Base::const_reference const_reference;
+
+ typedef __gnu_debug::_Safe_iterator<_Base_iterator, list>
+ iterator;
+ typedef __gnu_debug::_Safe_iterator<_Base_const_iterator, list>
+ const_iterator;
+
+ typedef typename _Base::size_type size_type;
+ typedef typename _Base::difference_type difference_type;
+
+ typedef _Tp value_type;
+ typedef _Allocator allocator_type;
+ typedef typename _Base::pointer pointer;
+ typedef typename _Base::const_pointer const_pointer;
+ typedef std::reverse_iterator<iterator> reverse_iterator;
+ typedef std::reverse_iterator<const_iterator> const_reverse_iterator;
+
+ // 23.2.2.1 construct/copy/destroy:
+ explicit
+ list(const _Allocator& __a = _Allocator())
+ : _Base(__a) { }
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ explicit
+ list(size_type __n)
+ : _Base(__n) { }
+
+ list(size_type __n, const _Tp& __value,
+ const _Allocator& __a = _Allocator())
+ : _Base(__n, __value, __a) { }
+#else
+ explicit
+ list(size_type __n, const _Tp& __value = _Tp(),
+ const _Allocator& __a = _Allocator())
+ : _Base(__n, __value, __a) { }
+#endif
+
+ template<class _InputIterator>
+ list(_InputIterator __first, _InputIterator __last,
+ const _Allocator& __a = _Allocator())
+ : _Base(__gnu_debug::__base(__gnu_debug::__check_valid_range(__first,
+ __last)),
+ __gnu_debug::__base(__last), __a)
+ { }
+
+
+ list(const list& __x)
+ : _Base(__x) { }
+
+ list(const _Base& __x)
+ : _Base(__x) { }
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ list(list&& __x) noexcept
+ : _Base(std::move(__x))
+ { this->_M_swap(__x); }
+
+ list(initializer_list<value_type> __l,
+ const allocator_type& __a = allocator_type())
+ : _Base(__l, __a) { }
+#endif
+
+ ~list() _GLIBCXX_NOEXCEPT { }
+
+ list&
+ operator=(const list& __x)
+ {
+ static_cast<_Base&>(*this) = __x;
+ this->_M_invalidate_all();
+ return *this;
+ }
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ list&
+ operator=(list&& __x)
+ {
+ // NB: DR 1204.
+ // NB: DR 675.
+ clear();
+ swap(__x);
+ return *this;
+ }
+
+ list&
+ operator=(initializer_list<value_type> __l)
+ {
+ static_cast<_Base&>(*this) = __l;
+ this->_M_invalidate_all();
+ return *this;
+ }
+
+ void
+ assign(initializer_list<value_type> __l)
+ {
+ _Base::assign(__l);
+ this->_M_invalidate_all();
+ }
+#endif
+
+ template<class _InputIterator>
+ void
+ assign(_InputIterator __first, _InputIterator __last)
+ {
+ __glibcxx_check_valid_range(__first, __last);
+ _Base::assign(__gnu_debug::__base(__first),
+ __gnu_debug::__base(__last));
+ this->_M_invalidate_all();
+ }
+
+ void
+ assign(size_type __n, const _Tp& __t)
+ {
+ _Base::assign(__n, __t);
+ this->_M_invalidate_all();
+ }
+
+ using _Base::get_allocator;
+
+ // iterators:
+ iterator
+ begin() _GLIBCXX_NOEXCEPT
+ { return iterator(_Base::begin(), this); }
+
+ const_iterator
+ begin() const _GLIBCXX_NOEXCEPT
+ { return const_iterator(_Base::begin(), this); }
+
+ iterator
+ end() _GLIBCXX_NOEXCEPT
+ { return iterator(_Base::end(), this); }
+
+ const_iterator
+ end() const _GLIBCXX_NOEXCEPT
+ { return const_iterator(_Base::end(), this); }
+
+ reverse_iterator
+ rbegin() _GLIBCXX_NOEXCEPT
+ { return reverse_iterator(end()); }
+
+ const_reverse_iterator
+ rbegin() const _GLIBCXX_NOEXCEPT
+ { return const_reverse_iterator(end()); }
+
+ reverse_iterator
+ rend() _GLIBCXX_NOEXCEPT
+ { return reverse_iterator(begin()); }
+
+ const_reverse_iterator
+ rend() const _GLIBCXX_NOEXCEPT
+ { return const_reverse_iterator(begin()); }
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ const_iterator
+ cbegin() const noexcept
+ { return const_iterator(_Base::begin(), this); }
+
+ const_iterator
+ cend() const noexcept
+ { return const_iterator(_Base::end(), this); }
+
+ const_reverse_iterator
+ crbegin() const noexcept
+ { return const_reverse_iterator(end()); }
+
+ const_reverse_iterator
+ crend() const noexcept
+ { return const_reverse_iterator(begin()); }
+#endif
+
+ // 23.2.2.2 capacity:
+ using _Base::empty;
+ using _Base::size;
+ using _Base::max_size;
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ void
+ resize(size_type __sz)
+ {
+ this->_M_detach_singular();
+
+ // if __sz < size(), invalidate all iterators in [begin+__sz, end())
+ _Base_iterator __victim = _Base::begin();
+ _Base_iterator __end = _Base::end();
+ for (size_type __i = __sz; __victim != __end && __i > 0; --__i)
+ ++__victim;
+
+ for (; __victim != __end; ++__victim)
+ {
+ this->_M_invalidate_if(_Equal(__victim));
+ }
+
+ __try
+ {
+ _Base::resize(__sz);
+ }
+ __catch(...)
+ {
+ this->_M_revalidate_singular();
+ __throw_exception_again;
+ }
+ }
+
+ void
+ resize(size_type __sz, const _Tp& __c)
+ {
+ this->_M_detach_singular();
+
+ // if __sz < size(), invalidate all iterators in [begin+__sz, end())
+ _Base_iterator __victim = _Base::begin();
+ _Base_iterator __end = _Base::end();
+ for (size_type __i = __sz; __victim != __end && __i > 0; --__i)
+ ++__victim;
+
+ for (; __victim != __end; ++__victim)
+ {
+ this->_M_invalidate_if(_Equal(__victim));
+ }
+
+ __try
+ {
+ _Base::resize(__sz, __c);
+ }
+ __catch(...)
+ {
+ this->_M_revalidate_singular();
+ __throw_exception_again;
+ }
+ }
+#else
+ void
+ resize(size_type __sz, _Tp __c = _Tp())
+ {
+ this->_M_detach_singular();
+
+ // if __sz < size(), invalidate all iterators in [begin+__sz, end())
+ _Base_iterator __victim = _Base::begin();
+ _Base_iterator __end = _Base::end();
+ for (size_type __i = __sz; __victim != __end && __i > 0; --__i)
+ ++__victim;
+
+ for (; __victim != __end; ++__victim)
+ {
+ this->_M_invalidate_if(_Equal(__victim));
+ }
+
+ __try
+ {
+ _Base::resize(__sz, __c);
+ }
+ __catch(...)
+ {
+ this->_M_revalidate_singular();
+ __throw_exception_again;
+ }
+ }
+#endif
+
+ // element access:
+ reference
+ front()
+ {
+ __glibcxx_check_nonempty();
+ return _Base::front();
+ }
+
+ const_reference
+ front() const
+ {
+ __glibcxx_check_nonempty();
+ return _Base::front();
+ }
+
+ reference
+ back()
+ {
+ __glibcxx_check_nonempty();
+ return _Base::back();
+ }
+
+ const_reference
+ back() const
+ {
+ __glibcxx_check_nonempty();
+ return _Base::back();
+ }
+
+ // 23.2.2.3 modifiers:
+ using _Base::push_front;
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ using _Base::emplace_front;
+#endif
+
+ void
+ pop_front()
+ {
+ __glibcxx_check_nonempty();
+ this->_M_invalidate_if(_Equal(_Base::begin()));
+ _Base::pop_front();
+ }
+
+ using _Base::push_back;
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ using _Base::emplace_back;
+#endif
+
+ void
+ pop_back()
+ {
+ __glibcxx_check_nonempty();
+ this->_M_invalidate_if(_Equal(--_Base::end()));
+ _Base::pop_back();
+ }
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ template<typename... _Args>
+ iterator
+ emplace(iterator __position, _Args&&... __args)
+ {
+ __glibcxx_check_insert(__position);
+ return iterator(_Base::emplace(__position.base(),
+ std::forward<_Args>(__args)...), this);
+ }
+#endif
+
+ iterator
+ insert(iterator __position, const _Tp& __x)
+ {
+ __glibcxx_check_insert(__position);
+ return iterator(_Base::insert(__position.base(), __x), this);
+ }
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ iterator
+ insert(iterator __position, _Tp&& __x)
+ { return emplace(__position, std::move(__x)); }
+
+ void
+ insert(iterator __p, initializer_list<value_type> __l)
+ {
+ __glibcxx_check_insert(__p);
+ _Base::insert(__p.base(), __l);
+ }
+#endif
+
+ void
+ insert(iterator __position, size_type __n, const _Tp& __x)
+ {
+ __glibcxx_check_insert(__position);
+ _Base::insert(__position.base(), __n, __x);
+ }
+
+ template<class _InputIterator>
+ void
+ insert(iterator __position, _InputIterator __first,
+ _InputIterator __last)
+ {
+ __glibcxx_check_insert_range(__position, __first, __last);
+ _Base::insert(__position.base(), __gnu_debug::__base(__first),
+ __gnu_debug::__base(__last));
+ }
+
+ private:
+ _Base_iterator
+ _M_erase(_Base_iterator __position)
+ {
+ this->_M_invalidate_if(_Equal(__position));
+ return _Base::erase(__position);
+ }
+ public:
+ iterator
+ erase(iterator __position)
+ {
+ __glibcxx_check_erase(__position);
+ return iterator(_M_erase(__position.base()), this);
+ }
+
+ iterator
+ erase(iterator __position, iterator __last)
+ {
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 151. can't currently clear() empty container
+ __glibcxx_check_erase_range(__position, __last);
+ for (_Base_iterator __victim = __position.base();
+ __victim != __last.base(); ++__victim)
+ {
+ _GLIBCXX_DEBUG_VERIFY(__victim != _Base::end(),
+ _M_message(__gnu_debug::__msg_valid_range)
+ ._M_iterator(__position, "position")
+ ._M_iterator(__last, "last"));
+ this->_M_invalidate_if(_Equal(__victim));
+ }
+ return iterator(_Base::erase(__position.base(), __last.base()), this);
+ }
+
+ void
+ swap(list& __x)
+ {
+ _Base::swap(__x);
+ this->_M_swap(__x);
+ }
+
+ void
+ clear() _GLIBCXX_NOEXCEPT
+ {
+ _Base::clear();
+ this->_M_invalidate_all();
+ }
+
+ // 23.2.2.4 list operations:
+ void
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ splice(iterator __position, list&& __x)
+#else
+ splice(iterator __position, list& __x)
+#endif
+ {
+ _GLIBCXX_DEBUG_VERIFY(&__x != this,
+ _M_message(__gnu_debug::__msg_self_splice)
+ ._M_sequence(*this, "this"));
+ this->_M_transfer_from_if(__x, _Not_equal(__x._M_base().end()));
+ _Base::splice(__position.base(), _GLIBCXX_MOVE(__x._M_base()));
+ }
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ void
+ splice(iterator __position, list& __x)
+ { splice(__position, std::move(__x)); }
+#endif
+
+ void
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ splice(iterator __position, list&& __x, iterator __i)
+#else
+ splice(iterator __position, list& __x, iterator __i)
+#endif
+ {
+ __glibcxx_check_insert(__position);
+
+ // We used to perform the splice_alloc check: not anymore, redundant
+ // after implementing the relevant bits of N1599.
+
+ _GLIBCXX_DEBUG_VERIFY(__i._M_dereferenceable(),
+ _M_message(__gnu_debug::__msg_splice_bad)
+ ._M_iterator(__i, "__i"));
+ _GLIBCXX_DEBUG_VERIFY(__i._M_attached_to(&__x),
+ _M_message(__gnu_debug::__msg_splice_other)
+ ._M_iterator(__i, "__i")._M_sequence(__x, "__x"));
+
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 250. splicing invalidates iterators
+ this->_M_transfer_from_if(__x, _Equal(__i.base()));
+ _Base::splice(__position.base(), _GLIBCXX_MOVE(__x._M_base()),
+ __i.base());
+ }
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ void
+ splice(iterator __position, list& __x, iterator __i)
+ { splice(__position, std::move(__x), __i); }
+#endif
+
+ void
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ splice(iterator __position, list&& __x, iterator __first,
+ iterator __last)
+#else
+ splice(iterator __position, list& __x, iterator __first,
+ iterator __last)
+#endif
+ {
+ __glibcxx_check_insert(__position);
+ __glibcxx_check_valid_range(__first, __last);
+ _GLIBCXX_DEBUG_VERIFY(__first._M_attached_to(&__x),
+ _M_message(__gnu_debug::__msg_splice_other)
+ ._M_sequence(__x, "x")
+ ._M_iterator(__first, "first"));
+
+ // We used to perform the splice_alloc check: not anymore, redundant
+ // after implementing the relevant bits of N1599.
+
+ for (_Base_iterator __tmp = __first.base();
+ __tmp != __last.base(); ++__tmp)
+ {
+ _GLIBCXX_DEBUG_VERIFY(__tmp != _Base::end(),
+ _M_message(__gnu_debug::__msg_valid_range)
+ ._M_iterator(__first, "first")
+ ._M_iterator(__last, "last"));
+ _GLIBCXX_DEBUG_VERIFY(&__x != this || __tmp != __position,
+ _M_message(__gnu_debug::__msg_splice_overlap)
+ ._M_iterator(__tmp, "position")
+ ._M_iterator(__first, "first")
+ ._M_iterator(__last, "last"));
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 250. splicing invalidates iterators
+ this->_M_transfer_from_if(__x, _Equal(__tmp));
+ }
+
+ _Base::splice(__position.base(), _GLIBCXX_MOVE(__x._M_base()),
+ __first.base(), __last.base());
+ }
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ void
+ splice(iterator __position, list& __x, iterator __first, iterator __last)
+ { splice(__position, std::move(__x), __first, __last); }
+#endif
+
+ void
+ remove(const _Tp& __value)
+ {
+ for (_Base_iterator __x = _Base::begin(); __x != _Base::end(); )
+ {
+ if (*__x == __value)
+ __x = _M_erase(__x);
+ else
+ ++__x;
+ }
+ }
+
+ template<class _Predicate>
+ void
+ remove_if(_Predicate __pred)
+ {
+ for (_Base_iterator __x = _Base::begin(); __x != _Base::end(); )
+ {
+ if (__pred(*__x))
+ __x = _M_erase(__x);
+ else
+ ++__x;
+ }
+ }
+
+ void
+ unique()
+ {
+ _Base_iterator __first = _Base::begin();
+ _Base_iterator __last = _Base::end();
+ if (__first == __last)
+ return;
+ _Base_iterator __next = __first; ++__next;
+ while (__next != __last)
+ {
+ if (*__first == *__next)
+ __next = _M_erase(__next);
+ else
+ __first = __next++;
+ }
+ }
+
+ template<class _BinaryPredicate>
+ void
+ unique(_BinaryPredicate __binary_pred)
+ {
+ _Base_iterator __first = _Base::begin();
+ _Base_iterator __last = _Base::end();
+ if (__first == __last)
+ return;
+ _Base_iterator __next = __first; ++__next;
+ while (__next != __last)
+ {
+ if (__binary_pred(*__first, *__next))
+ __next = _M_erase(__next);
+ else
+ __first = __next++;
+ }
+ }
+
+ void
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ merge(list&& __x)
+#else
+ merge(list& __x)
+#endif
+ {
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 300. list::merge() specification incomplete
+ if (this != &__x)
+ {
+ __glibcxx_check_sorted(_Base::begin(), _Base::end());
+ __glibcxx_check_sorted(__x.begin().base(), __x.end().base());
+ this->_M_transfer_from_if(__x, _Not_equal(__x._M_base().end()));
+ _Base::merge(_GLIBCXX_MOVE(__x._M_base()));
+ }
+ }
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ void
+ merge(list& __x)
+ { merge(std::move(__x)); }
+#endif
+
+ template<class _Compare>
+ void
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ merge(list&& __x, _Compare __comp)
+#else
+ merge(list& __x, _Compare __comp)
+#endif
+ {
+ // _GLIBCXX_RESOLVE_LIB_DEFECTS
+ // 300. list::merge() specification incomplete
+ if (this != &__x)
+ {
+ __glibcxx_check_sorted_pred(_Base::begin(), _Base::end(),
+ __comp);
+ __glibcxx_check_sorted_pred(__x.begin().base(), __x.end().base(),
+ __comp);
+ this->_M_transfer_from_if(__x, _Not_equal(__x._M_base().end()));
+ _Base::merge(_GLIBCXX_MOVE(__x._M_base()), __comp);
+ }
+ }
+
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+ template<typename _Compare>
+ void
+ merge(list& __x, _Compare __comp)
+ { merge(std::move(__x), __comp); }
+#endif
+
+ void
+ sort() { _Base::sort(); }
+
+ template<typename _StrictWeakOrdering>
+ void
+ sort(_StrictWeakOrdering __pred) { _Base::sort(__pred); }
+
+ using _Base::reverse;
+
+ _Base&
+ _M_base() _GLIBCXX_NOEXCEPT { return *this; }
+
+ const _Base&
+ _M_base() const _GLIBCXX_NOEXCEPT { return *this; }
+
+ private:
+ void
+ _M_invalidate_all()
+ {
+ this->_M_invalidate_if(_Not_equal(_Base::end()));
+ }
+ };
+
+ template<typename _Tp, typename _Alloc>
+ inline bool
+ operator==(const list<_Tp, _Alloc>& __lhs,
+ const list<_Tp, _Alloc>& __rhs)
+ { return __lhs._M_base() == __rhs._M_base(); }
+
+ template<typename _Tp, typename _Alloc>
+ inline bool
+ operator!=(const list<_Tp, _Alloc>& __lhs,
+ const list<_Tp, _Alloc>& __rhs)
+ { return __lhs._M_base() != __rhs._M_base(); }
+
+ template<typename _Tp, typename _Alloc>
+ inline bool
+ operator<(const list<_Tp, _Alloc>& __lhs,
+ const list<_Tp, _Alloc>& __rhs)
+ { return __lhs._M_base() < __rhs._M_base(); }
+
+ template<typename _Tp, typename _Alloc>
+ inline bool
+ operator<=(const list<_Tp, _Alloc>& __lhs,
+ const list<_Tp, _Alloc>& __rhs)
+ { return __lhs._M_base() <= __rhs._M_base(); }
+
+ template<typename _Tp, typename _Alloc>
+ inline bool
+ operator>=(const list<_Tp, _Alloc>& __lhs,
+ const list<_Tp, _Alloc>& __rhs)
+ { return __lhs._M_base() >= __rhs._M_base(); }
+
+ template<typename _Tp, typename _Alloc>
+ inline bool
+ operator>(const list<_Tp, _Alloc>& __lhs,
+ const list<_Tp, _Alloc>& __rhs)
+ { return __lhs._M_base() > __rhs._M_base(); }
+
+ template<typename _Tp, typename _Alloc>
+ inline void
+ swap(list<_Tp, _Alloc>& __lhs, list<_Tp, _Alloc>& __rhs)
+ { __lhs.swap(__rhs); }
+
+} // namespace __debug
+} // namespace std
+
+#endif
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